KVM's 'gtod_is_based_on_tsc()' recognizes two clocksources: 'tsc' and
'hyperv_clocksource_tsc_page' and enables kvmclock in 'masterclock'
mode when either is in use. Transform 'sys_clocksource_is_tsc()' into
'sys_clocksource_is_based_on_tsc()' to support the later. This affects
two tests: kvm_clock_test and vmx_nested_tsc_scaling_test, both seem
to work well when system clocksource is 'hyperv_clocksource_tsc_page'.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Link: https://lore.kernel.org/r/20240109141121.1619463-4-vkuznets@redhat.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Despite its name, system_has_stable_tsc() just checks that system
clocksource is 'tsc'; this can now be done with generic
sys_clocksource_is_tsc().
No functional change intended.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Link: https://lore.kernel.org/r/20240109141121.1619463-3-vkuznets@redhat.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Several existing x86 selftests need to check that the underlying system
clocksource is TSC or based on TSC but every test implements its own
check. As a first step towards unification, extract check_clocksource()
from kvm_clock_test and split it into two functions: arch-neutral
'sys_get_cur_clocksource()' and x86-specific 'sys_clocksource_is_tsc()'.
Fix a couple of pre-existing issues in kvm_clock_test: memory leakage in
check_clocksource() and using TEST_ASSERT() instead of TEST_REQUIRE().
The change also makes the test fail when system clocksource can't be read
from sysfs.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Link: https://lore.kernel.org/r/20240109141121.1619463-2-vkuznets@redhat.com
[sean: eliminate if-elif pattern just to set a bool true]
Signed-off-by: Sean Christopherson <seanjc@google.com>
Some scripts are not tests themselves; they contain utility functions used
by other tests. According to Documentation/dev-tools/kselftest.rst, such
files should be listed in TEST_FILES. Currently they are incorrectly listed
in TEST_PROGS_EXTENDED so rename the variable.
Fixes: c085dbfb1c ("selftests/net/forwarding: define libs as TEST_PROGS_EXTENDED")
Suggested-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Benjamin Poirier <bpoirier@nvidia.com>
Link: https://lore.kernel.org/r/20240131140848.360618-6-bpoirier@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Some scripts are not tests themselves; they contain utility functions used
by other tests. According to Documentation/dev-tools/kselftest.rst, such
files should be listed in TEST_FILES. Move those utility scripts to
TEST_FILES.
Fixes: 1751eb42dd ("selftests: net: use TEST_PROGS_EXTENDED")
Fixes: 25ae948b44 ("selftests/net: add lib.sh")
Fixes: b99ac18411 ("kselftests/net: add missed setup_loopback.sh/setup_veth.sh to Makefile")
Fixes: f5173fe3e1 ("selftests: net: included needed helper in the install targets")
Suggested-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Benjamin Poirier <bpoirier@nvidia.com>
Link: https://lore.kernel.org/r/20240131140848.360618-5-bpoirier@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
setup_loopback.sh and net_helper.sh are meant to be sourced from other
scripts, not executed directly. Therefore, remove the executable bits from
those files' permissions.
This change is similar to commit 49078c1b80 ("selftests: forwarding:
Remove executable bits from lib.sh")
Fixes: 7d1575014a ("selftests/net: GRO coalesce test")
Fixes: 3bdd9fd29c ("selftests/net: synchronize udpgro tests' tx and rx connection")
Suggested-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Benjamin Poirier <bpoirier@nvidia.com>
Link: https://lore.kernel.org/r/20240131140848.360618-4-bpoirier@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The purpose of the test_LAG_cleanup() function is to check that some
hardware addresses are removed from underlying devices after they have been
unenslaved. The test function simply checks that those addresses are not
present at the end. However, if the addresses were never added to begin
with due to some error in device setup, the test function currently passes.
This is a false positive since in that situation the test did not actually
exercise the intended functionality.
Add a check that the expected addresses are indeed present after device
setup. This makes the test function more robust.
I noticed this problem when running the team/dev_addr_lists.sh test on a
system without support for dummy and ipv6:
tools/testing/selftests/drivers/net/team# ./dev_addr_lists.sh
Error: Unknown device type.
Error: Unknown device type.
This program is not intended to be run as root.
RTNETLINK answers: Operation not supported
TEST: team cleanup mode lacp [ OK ]
Fixes: bbb774d921 ("net: Add tests for bonding and team address list management")
Signed-off-by: Benjamin Poirier <bpoirier@nvidia.com>
Link: https://lore.kernel.org/r/20240131140848.360618-3-bpoirier@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Similar to commit dd2d40acdb ("selftests: bonding: Add more missing
config options"), add more networking-specific config options which are
needed for team device tests.
For testing, I used the minimal config generated by virtme-ng and I added
the options in the config file. Afterwards, the team device test passed.
Fixes: bbb774d921 ("net: Add tests for bonding and team address list management")
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Benjamin Poirier <bpoirier@nvidia.com>
Link: https://lore.kernel.org/r/20240131140848.360618-2-bpoirier@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When running the pmtu.sh via the kselftest infra, accessing
/dev/stdout gives unexpected results:
# dd: failed to open '/dev/stdout': Device or resource busy
# TEST: IPv4, bridged vxlan4: PMTU exceptions [FAIL]
Let dd use directly the standard output to fix the above:
# TEST: IPv4, bridged vxlan4: PMTU exceptions - nexthop objects [ OK ]
Fixes: 136a1b434b ("selftests: net: test vxlan pmtu exceptions with tcp")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/23d7592c5d77d75cff9b34f15c227f92e911c2ae.1706635101.git.pabeni@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The pmtu.sh test tries to detect the tunnel protocols available
in the running kernel and properly skip the unsupported cases.
In a few more complex setup, such detection is unsuccessful, as
the script currently ignores some intermediate error code at
setup time.
Before:
# which: no nettest in (/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin)
# TEST: vti6: PMTU exceptions (ESP-in-UDP) [FAIL]
# PMTU exception wasn't created after creating tunnel exceeding link layer MTU
# ./pmtu.sh: line 931: kill: (7543) - No such process
# ./pmtu.sh: line 931: kill: (7544) - No such process
After:
# xfrm4 not supported
# TEST: vti4: PMTU exceptions [SKIP]
Fixes: ece1278a9b ("selftests: net: add ESP-in-UDP PMTU test")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/cab10e75fda618e6fff8c595b632f47db58b9309.1706635101.git.pabeni@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The mentioned test uses a few Kconfig still missing the
net config, add them.
Before:
# Error: Specified qdisc kind is unknown.
# Error: Specified qdisc kind is unknown.
# Error: Qdisc not classful.
# We have an error talking to the kernel
# Error: Qdisc not classful.
# We have an error talking to the kernel
# policy_routing not supported
# TEST: ICMPv4 with DSCP and ECN: PMTU exceptions [SKIP]
After:
# TEST: ICMPv4 with DSCP and ECN: PMTU exceptions [ OK ]
Fixes: ec730c3e1f ("selftest: net: Test IPv4 PMTU exceptions with DSCP and ECN")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/8d27bf6762a5c7b3acc457d6e6872c533040f9c1.1706635101.git.pabeni@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Currently, the test is racy and seems to not pass anymore.
In order to rectify it, aim on TCP_TW_RST.
Doesn't seem way too good with this sleep() part, but it seems as
a reasonable compromise for the test. There is a plan in-line comment on
how-to improve it, going to do it on the top, at this moment I want it
to run on netdev/patchwork selftests dashboard.
It also slightly changes tcp_ao-lib in order to get SO_ERROR propagated
to test_client_verify() return value.
Fixes: c6df7b2361 ("selftests/net: Add TCP-AO RST test")
Signed-off-by: Dmitry Safonov <dima@arista.com>
Link: https://lore.kernel.org/r/20240130-tcp-ao-test-key-mgmt-v2-3-d190430a6c60@arista.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
As the names of (struct test_key) members didn't reflect whether the key
was used for TX or RX, the verification for the counters was done
incorrectly for asymmetrical selftests.
Rename these with _tx appendix and fix checks in verify_counters().
While at it, as the checks are now correct, introduce skip_counters_checks,
which is intended for tests where it's expected that a key that was set
with setsockopt(sk, IPPROTO_TCP, TCP_AO_INFO, ...) might had no chance
of getting used on the wire.
Fixes the following failures, exposed by the previous commit:
> not ok 51 server: Check current != rnext keys set before connect(): Counter pkt_good was expected to increase 0 => 0 for key 132:5
> not ok 52 server: Check current != rnext keys set before connect(): Counter pkt_good was not expected to increase 0 => 21 for key 137:10
>
> not ok 63 server: Check current flapping back on peer's RnextKey request: Counter pkt_good was expected to increase 0 => 0 for key 132:5
> not ok 64 server: Check current flapping back on peer's RnextKey request: Counter pkt_good was not expected to increase 0 => 40 for key 137:10
Cc: Mohammad Nassiri <mnassiri@ciena.com>
Fixes: 3c3ead5556 ("selftests/net: Add TCP-AO key-management test")
Signed-off-by: Dmitry Safonov <dima@arista.com>
Link: https://lore.kernel.org/r/20240130-tcp-ao-test-key-mgmt-v2-2-d190430a6c60@arista.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The end_server() function only operates in the server thread
and always takes an accept socket instead of a listen socket as
its input argument. To align with this, invert the boolean values
used when calling verify_counters() within the end_server() function.
As a result of this typo, the test didn't correctly check for
the non-symmetrical scenario, where i.e. peer-A uses a key <100:200>
to send data, but peer-B uses another key <105:205> to send its data.
So, in simple words, different keys for TX and RX.
Fixes: 3c3ead5556 ("selftests/net: Add TCP-AO key-management test")
Signed-off-by: Mohammad Nassiri <mnassiri@ciena.com>
Link: https://lore.kernel.org/all/934627c5-eebb-4626-be23-cfb134c01d1a@arista.com/
[amended 'Fixes' tag, added the issue description and carried-over to lkml]
Signed-off-by: Dmitry Safonov <dima@arista.com>
Link: https://lore.kernel.org/r/20240130-tcp-ao-test-key-mgmt-v2-1-d190430a6c60@arista.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
l2_tos_ttl_inherit.sh verifies the inheritance of tos and ttl
for GRETAP, VXLAN and GENEVE.
Before testing it checks if the required module is available
and if not skips the tests accordingly.
Currently only GRETAP and VXLAN are tested because the GENEVE
module is missing.
Fixes: b690842d12 ("selftests/net: test l2 tunnel TOS/TTL inheriting")
Signed-off-by: Matthias May <matthias.may@westermo.com>
Link: https://lore.kernel.org/r/20240130101157.196006-1-matthias.may@westermo.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
One of the test cases in the test_bridge_backup_port.sh selftest relies
on a matchall classifier to drop unrelated traffic so that the Tx drop
counter on the VXLAN device will only be incremented as a result of
traffic generated by the test.
However, the configuration option for the matchall classifier is
missing from the configuration file which might explain the failures we
see in the netdev CI [1].
Fix by adding CONFIG_NET_CLS_MATCHALL to the configuration file.
[1]
# Backup nexthop ID - invalid IDs
# -------------------------------
[...]
# TEST: Forwarding out of vx0 [ OK ]
# TEST: No forwarding using backup nexthop ID [ OK ]
# TEST: Tx drop increased [FAIL]
# TEST: IPv6 address family nexthop as backup nexthop [ OK ]
# TEST: No forwarding out of swp1 [ OK ]
# TEST: Forwarding out of vx0 [ OK ]
# TEST: No forwarding using backup nexthop ID [ OK ]
# TEST: Tx drop increased [FAIL]
[...]
Fixes: b408453053 ("selftests: net: Add bridge backup port and backup nexthop ID test")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://lore.kernel.org/r/20240129123703.1857843-1-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This kselftest fixes update for Linux 6.8-rc3 consists of three
fixes to livepatch, rseq, and seccomp tests.
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Merge tag 'linux_kselftest-fixes-6.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest fixes from Shuah Khan:
"Three fixes to livepatch, rseq, and seccomp tests"
* tag 'linux_kselftest-fixes-6.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
kselftest/seccomp: Report each expectation we assert as a KTAP test
kselftest/seccomp: Use kselftest output functions for benchmark
selftests/livepatch: fix and refactor new dmesg message code
selftests/rseq: Do not skip !allowed_cpus for mm_cid
open_path_or_exit() is used for '/dev/kvm', '/dev/sev', and
'/sys/module/%s/parameters/%s' and skipping test when the entry is missing
is completely reasonable. Other errors, however, may indicate a real issue
which is easy to miss. E.g. when 'hyperv_features' test was entering an
infinite loop the output was:
./hyperv_features
Testing access to Hyper-V specific MSRs
1..0 # SKIP - /dev/kvm not available (errno: 24)
and this can easily get overlooked.
Keep ENOENT case 'special' for skipping tests and fail when open() results
in any other errno.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Link: https://lore.kernel.org/r/20240129085847.2674082-2-vkuznets@redhat.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
When X86_FEATURE_INVTSC is missing, guest_test_msrs_access() was supposed
to skip testing dependent Hyper-V invariant TSC feature. Unfortunately,
'continue' does not lead to that as stage is not incremented. Moreover,
'vm' allocated with vm_create_with_one_vcpu() is not freed and the test
runs out of available file descriptors very quickly.
Fixes: bd827bd775 ("KVM: selftests: Test Hyper-V invariant TSC control")
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Link: https://lore.kernel.org/r/20240129085847.2674082-1-vkuznets@redhat.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Delete the AMX's tests "stage" counter, as the counter is no longer used,
which makes clang unhappy:
x86_64/amx_test.c:224:6: error: variable 'stage' set but not used
int stage, ret;
^
1 error generated.
Note, "stage" was never really used, it just happened to be dumped out by
a (failed) assertion on run->exit_reason, i.e. the AMX test has no concept
of stages, the code was likely copy+pasted from a different test.
Fixes: c96f57b080 ("KVM: selftests: Make vCPU exit reason test assertion common")
Reviewed-by: Jim Mattson <jmattson@google.com>
Link: https://lore.kernel.org/r/20240109220302.399296-1-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
TEST_* functions append their own newline. Remove newlines from
TEST_* callsites to avoid extra newlines in output.
Signed-off-by: Andrew Jones <ajones@ventanamicro.com>
Link: https://lore.kernel.org/r/20231206170241.82801-12-ajones@ventanamicro.com
[sean: keep the newline in the "tsc\n" strncmp()]
Signed-off-by: Sean Christopherson <seanjc@google.com>
The seccomp benchmark test makes a number of checks on the performance it
measures and logs them to the output but does so in a custom format which
none of the automated test runners understand meaning that the chances that
anyone is paying attention are slim. Let's additionally log each result in
KTAP format so that automated systems parsing the test output will see each
comparison as a test case. The original logs are left in place since they
provide the actual numbers for analysis.
As part of this rework the flow for the main program so that when we skip
tests we still log all the tests we skip, this is because the standard KTAP
headers and footers include counts of the number of expected and run tests.
Tested-by: Anders Roxell <anders.roxell@linaro.org>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
In preparation for trying to output the test results themselves in TAP
format rework all the prints in the benchmark to use the kselftest output
functions. The uses of system() all produce single line output so we can
avoid having to deal with fully managing the child process and continue to
use system() by simply printing an empty message before we invoke system().
We also leave one printf() used to complete a line of output in place.
Tested-by: Anders Roxell <anders.roxell@linaro.org>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
The livepatching kselftests rely on comparing expected vs. observed
dmesg output. After each test, new dmesg entries are determined by the
'comm' utility comparing a saved, pre-test copy of dmesg to post-test
dmesg output.
Alexander reports that the 'comm --nocheck-order -13' invocation used by
the tests can be confused when dmesg entry timestamps vary in magnitude
(ie, "[ 98.820331]" vs. "[ 100.031067]"), in which case, additional
messages are reported as new. The unexpected entries then spoil the
test results.
Instead of relying on 'comm' or 'diff' to determine new testing dmesg
entries, refactor the code:
- pre-test : log a unique canary dmesg entry
- test : run tests, log messages
- post-test : filter dmesg starting from pre-test message
Reported-by: Alexander Gordeev <agordeev@linux.ibm.com>
Closes: https://lore.kernel.org/live-patching/ZYAimyPYhxVA9wKg@li-008a6a4c-3549-11b2-a85c-c5cc2836eea2.ibm.com/
Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com>
Acked-by: Alexander Gordeev <agordeev@linux.ibm.com>
Tested-by: Marcos Paulo de Souza <mpdesouza@suse.com>
Reviewed-by: Marcos Paulo de Souza <mpdesouza@suse.com>
Acked-by: Miroslav Benes <mbenes@suse.cz>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Modern OSes use iptables implementation with nf_tables as a backend,
e.g.:
$ iptables -V
iptables v1.8.8 (nf_tables)
Pablo points out that we need CONFIG_NFT_COMPAT to make that work,
otherwise we see a lot of:
Warning: Extension DNAT revision 0 not supported, missing kernel module?
with DNAT being just an example here, other modules we need
include udp, TTL, length etc.
Link: https://lore.kernel.org/r/20240126201308.2903602-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
or aren't considered appropriate for backporting.
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Merge tag 'mm-hotfixes-stable-2024-01-28-23-21' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"22 hotfixes. 11 are cc:stable and the remainder address post-6.7
issues or aren't considered appropriate for backporting"
* tag 'mm-hotfixes-stable-2024-01-28-23-21' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (22 commits)
mm: thp_get_unmapped_area must honour topdown preference
mm: huge_memory: don't force huge page alignment on 32 bit
userfaultfd: fix mmap_changing checking in mfill_atomic_hugetlb
selftests/mm: ksm_tests should only MADV_HUGEPAGE valid memory
scs: add CONFIG_MMU dependency for vfree_atomic()
mm/memory: fix folio_set_dirty() vs. folio_mark_dirty() in zap_pte_range()
mm/huge_memory: fix folio_set_dirty() vs. folio_mark_dirty()
selftests/mm: Update va_high_addr_switch.sh to check CPU for la57 flag
selftests: mm: fix map_hugetlb failure on 64K page size systems
MAINTAINERS: supplement of zswap maintainers update
stackdepot: make fast paths lock-less again
stackdepot: add stats counters exported via debugfs
mm, kmsan: fix infinite recursion due to RCU critical section
mm/writeback: fix possible divide-by-zero in wb_dirty_limits(), again
selftests/mm: switch to bash from sh
MAINTAINERS: add man-pages git trees
mm: memcontrol: don't throttle dying tasks on memory.high
mm: mmap: map MAP_STACK to VM_NOHUGEPAGE
uprobes: use pagesize-aligned virtual address when replacing pages
selftests/mm: mremap_test: fix build warning
...
TEST_* functions append their own newline. Remove newlines from
TEST_* callsites to avoid extra newlines in output.
Signed-off-by: Andrew Jones <ajones@ventanamicro.com>
Acked-by: Janosch Frank <frankja@linux.ibm.com>
Acked-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Link: https://lore.kernel.org/r/20231206170241.82801-11-ajones@ventanamicro.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
TEST_* functions append their own newline. Remove newlines from
TEST_* callsites to avoid extra newlines in output.
Signed-off-by: Andrew Jones <ajones@ventanamicro.com>
Acked-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20231206170241.82801-10-ajones@ventanamicro.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
TEST_* functions append their own newline. Remove newlines from
TEST_* callsites to avoid extra newlines in output.
Signed-off-by: Andrew Jones <ajones@ventanamicro.com>
Acked-by: Zenghui Yu <yuzenghui@huawei.com>
Link: https://lore.kernel.org/r/20231206170241.82801-9-ajones@ventanamicro.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
TEST_* functions append their own newline. Remove newlines from
TEST_* callsites to avoid extra newlines in output.
Signed-off-by: Andrew Jones <ajones@ventanamicro.com>
Link: https://lore.kernel.org/r/20231206170241.82801-8-ajones@ventanamicro.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Rework the NX hugepage test's skip message regarding the magic token to
provide all of the necessary magic, and to very explicitly recommended
using the wrapper shell script.
Opportunistically remove an overzealous newline; splitting the
recommendation message across two lines of ~45 characters makes it much
harder to read than running out a single line to 98 characters.
Link: https://lore.kernel.org/r/20231129224042.530798-1-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
- Fix unit test build regression fallout from global
"missing-prototypes" change
- Fix compatibility with devices that do not support interrupts
- Fix overflow when calculating the capacity of large interleave sets
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Merge tag 'cxl-fixes-6.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
Pull cxl fixes from Dan Williams:
"A build regression fix, a device compatibility fix, and an original
bug preventing creation of large (16 device) interleave sets:
- Fix unit test build regression fallout from global
"missing-prototypes" change
- Fix compatibility with devices that do not support interrupts
- Fix overflow when calculating the capacity of large interleave sets"
* tag 'cxl-fixes-6.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
cxl/region：Fix overflow issue in alloc_hpa()
cxl/pci: Skip irq features if MSI/MSI-X are not supported
tools/testing/nvdimm: Disable "missing prototypes / declarations" warnings
tools/testing/cxl: Disable "missing prototypes / declarations" warnings
The gro.sh test-case relay on the gro_flush_timeout to ensure
that all the segments belonging to any given batch are properly
aggregated.
The other end, the sender is a user-space program transmitting
each packet with a separate write syscall. A busy host and/or
stracing the sender program can make the relevant segments reach
the GRO engine after the flush timeout triggers.
Give the GRO flush timeout more slack, to avoid sporadic self-tests
failures.
Fixes: 9af771d2ec ("selftests/net: allow GRO coalesce test on veth")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Tested-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/bffec2beab3a5672dd13ecabe4fad81d2155b367.1706206101.git.pabeni@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
the udpgro_fraglist self-test uses the BPF classifiers, but the
current net self-test configuration does not include it, causing
CI failures:
# selftests: net: udpgro_frglist.sh
# ipv6
# tcp - over veth touching data
# -l 4 -6 -D 2001:db8::1 -t rx -4 -t
# Error: TC classifier not found.
# We have an error talking to the kernel
# Error: TC classifier not found.
# We have an error talking to the kernel
Add the missing knob.
Fixes: edae34a3ed ("selftests net: add UDP GRO fraglist + bpf self-tests")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Maciej Żenczykowski <maze@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/7c3643763b331e9a400e1874fe089193c99a1c3f.1706170897.git.pabeni@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The big_tcp test-case requires a few kernel knobs currently
not specified in the net selftests config, causing the
following failure:
# selftests: net: big_tcp.sh
# Error: Failed to load TC action module.
# We have an error talking to the kernel
...
# Testing for BIG TCP:
# CLI GSO | GW GRO | GW GSO | SER GRO
# ./big_tcp.sh: line 107: test: !=: unary operator expected
...
# on on on on : [FAIL_on_link1]
Add the missing configs
Fixes: 6bb382bcf7 ("selftests: add a selftest for big tcp")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Aaron Conole <aconole@redhat.com>
Acked-by: Xin Long <lucien.xin@gmail.com>
Link: https://lore.kernel.org/all/21630ecea872fea13f071342ac64ef52a991a9b5.1706282943.git.pabeni@redhat.com/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
- Zbc extension support for Guest/VM
- Scalar crypto extensions support for Guest/VM
- Vector crypto extensions support for Guest/VM
- Zfh[min] extensions support for Guest/VM
- Zihintntl extension support for Guest/VM
- Zvfh[min] extensions support for Guest/VM
- Zfa extension support for Guest/VM
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Merge tag 'kvm-riscv-6.8-2' of https://github.com/kvm-riscv/linux into HEAD
KVM/riscv changes for 6.8 part #2
- Zbc extension support for Guest/VM
- Scalar crypto extensions support for Guest/VM
- Vector crypto extensions support for Guest/VM
- Zfh[min] extensions support for Guest/VM
- Zihintntl extension support for Guest/VM
- Zvfh[min] extensions support for Guest/VM
- Zfa extension support for Guest/VM
ksm_tests was previously mmapping a region of memory, aligning the
returned pointer to a PMD boundary, then setting MADV_HUGEPAGE, but was
setting it past the end of the mmapped area due to not taking the pointer
alignment into consideration. Fix this behaviour.
Up until commit efa7df3e3b ("mm: align larger anonymous mappings on THP
boundaries"), this buggy behavior was (usually) masked because the
alignment difference was always less than PMD-size. But since the
mentioned commit, `ksm_tests -H -s 100` started failing.
Link: https://lkml.kernel.org/r/20240122120554.3108022-1-ryan.roberts@arm.com
Fixes: 3252548996 ("selftests: vm: add KSM huge pages merging time test")
Signed-off-by: Ryan Roberts <ryan.roberts@arm.com>
Cc: Pedro Demarchi Gomes <pedrodemargomes@gmail.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
In order for the page table level 5 to be in use, the CPU must have the
setting enabled in addition to the CONFIG option. Check for the flag to be
set to avoid false test failures on systems that do not have this cpu flag
set.
The test does a series of mmap calls including three using the
MAP_FIXED flag and specifying an address that is 1<<47 or 1<<48. These
addresses are only available if you are using level 5 page tables,
which requires both the CPU to have the capabiltiy (la57 flag) and the
kernel to be configured. Currently the test only checks for the kernel
configuration option, so this test can still report a false positive.
Here are the three failing lines:
$ ./va_high_addr_switch | grep FAILED
mmap(ADDR_SWITCH_HINT, 2 * PAGE_SIZE, MAP_FIXED): 0xffffffffffffffff - FAILED
mmap(HIGH_ADDR, MAP_FIXED): 0xffffffffffffffff - FAILED
mmap(ADDR_SWITCH_HINT, 2 * PAGE_SIZE, MAP_FIXED): 0xffffffffffffffff - FAILED
I thought (for about a second) refactoring the test so that these three
mmap calls will only be run on systems with the level 5 page tables
available, but the whole point of the test is to check the level 5
feature...
Link: https://lkml.kernel.org/r/20240119205801.62769-1-audra@redhat.com
Fixes: 4f2930c671 ("selftests/vm: only run 128TBswitch with 5-level paging")
Signed-off-by: Audra Mitchell <audra@redhat.com>
Cc: Rafael Aquini <raquini@redhat.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Adam Sindelar <adam@wowsignal.io>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
On systems with 64k page size and 512M huge page sizes, the allocation and
test succeeds but errors out at the munmap. As the comment states, munmap
will failure if its not HUGEPAGE aligned. This is due to the length of
the mapping being 1/2 the size of the hugepage causing the munmap to not
be hugepage aligned. Fix this by making the mapping length the full
hugepage if the hugepage is larger than the length of the mapping.
Link: https://lkml.kernel.org/r/20240119131429.172448-1-npache@redhat.com
Signed-off-by: Nico Pache <npache@redhat.com>
Cc: Donet Tom <donettom@linux.vnet.ibm.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Running charge_reserved_hugetlb.sh generates errors if sh is set to
dash:
./charge_reserved_hugetlb.sh: 9: [[: not found
./charge_reserved_hugetlb.sh: 19: [[: not found
./charge_reserved_hugetlb.sh: 27: [[: not found
./charge_reserved_hugetlb.sh: 37: [[: not found
./charge_reserved_hugetlb.sh: 45: Syntax error: "(" unexpected
Switch to using /bin/bash instead of /bin/sh. Make the switch for
write_hugetlb_memory.sh as well which is called from
charge_reserved_hugetlb.sh.
Link: https://lkml.kernel.org/r/20240116090455.3407378-1-usama.anjum@collabora.com
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: David Laight <David.Laight@ACULAB.COM>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Use 2 separate variables of types int and unsigned long long instead of
confusing them. This corrects the correct print format for each of them
and removes the build warning:
warning: format `%d' expects argument of type `int', but argument 2 has type `long long unsigned int'
Link: https://lkml.kernel.org/r/20240112071851.612930-1-usama.anjum@collabora.com
Fixes: a4cb3b2433 ("selftests: mm: add a test for remapping to area immediately after existing mapping")
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Joel Fernandes (Google) <joel@joelfernandes.org>
Cc: Lorenzo Stoakes <lstoakes@gmail.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
The busywait timeout value is a millisecond, not a second. So the
current setting 2 is too small. On slow/busy host (or VMs) the
current timeout can expire even on "correct" execution, causing random
failures. Let's copy the WAIT_TIMEOUT from forwarding/lib.sh and set
BUSYWAIT_TIMEOUT here.
Fixes: 25ae948b44 ("selftests/net: add lib.sh")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240124061344.1864484-1-liuhangbin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The default timeout for tests is 45sec, bench-lookups_ipv6
seems to take around 50sec when running in a VM without
HW acceleration. Give it a 2x margin and set the timeout
to 120sec.
Fixes: d1066c9c58 ("selftests/net: Add test/benchmark for removing MKTs")
Reviewed-by: Dmitry Safonov <0x7f454c46@gmail.com>
Link: https://lore.kernel.org/r/20240124233630.1977708-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The UDP GRO forwarding test still hard-code an arbitrary pause
to wait for the UDP listener becoming ready in background.
That causes sporadic failures depending on the host load.
Replace the sleep with the existing helper waiting for the desired
port being exposed.
Fixes: a062260a9d ("selftests: net: add UDP GRO forwarding self-tests")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/4d58900fb09cef42749cfcf2ad7f4b91a97d225c.1706131762.git.pabeni@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The blamed commit below introduce a dependency in some net self-tests
towards a newly introduce helper script.
Such script is currently not included into the TEST_PROGS_EXTENDED list
and thus is not installed, causing failure for the relevant tests when
executed from the install dir.
Fix the issue updating the install targets.
Fixes: 3bdd9fd29c ("selftests/net: synchronize udpgro tests' tx and rx connection")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/076e8758e21ff2061cc9f81640e7858df775f0a9.1706131762.git.pabeni@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Several net tests requires an XDP program build under the ebpf
directory, and error out if such program is not available.
That makes running successful net test hard, let's duplicate into the
net dir the [very small] program, re-using the existing rules to build
it, and finally dropping the bogus dependency.
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/28e7af7c031557f691dc8045ee41dd549dd5e74c.1706131762.git.pabeni@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Still a bit unclear whether each directory should have its own
config file, but assuming they should lets add one for tcp_ao.
The following tests still fail with this config in place:
- rst_ipv4,
- rst_ipv6,
- bench-lookups_ipv6.
other 21 pass.
Fixes: d11301f659 ("selftests/net: Add TCP-AO ICMPs accept test")
Reviewed-by: Dmitry Safonov <0x7f454c46@gmail.com>
Link: https://lore.kernel.org/r/20240124192550.1865743-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Current release - regressions:
- bpf: fix a kernel crash for the riscv 64 JIT
- bnxt_en: fix memory leak in bnxt_hwrm_get_rings()
- revert "net: macsec: use skb_ensure_writable_head_tail to expand the skb"
Previous releases - regressions:
- core: fix removing a namespace with conflicting altnames
- tc/flower: fix chain template offload memory leak
- tcp:
- make sure init the accept_queue's spinlocks once
- fix autocork on CPUs with weak memory model
- udp: fix busy polling
- mlx5e:
- fix out-of-bound read in port timestamping
- fix peer flow lists corruption
- iwlwifi: fix a memory corruption
Previous releases - always broken:
- netfilter:
- nft_chain_filter: handle NETDEV_UNREGISTER for inet/ingress basechain
- nft_limit: reject configurations that cause integer overflow
- bpf: fix bpf_xdp_adjust_tail() with XSK zero-copy mbuf, avoiding
a NULL pointer dereference upon shrinking
- llc: make llc_ui_sendmsg() more robust against bonding changes
- smc: fix illegal rmb_desc access in SMC-D connection dump
- dpll: fix pin dump crash for rebound module
- bnxt_en: fix possible crash after creating sw mqprio TCs
- hv_netvsc: calculate correct ring size when PAGE_SIZE is not 4 Kbytes
Misc:
- several self-tests fixes for better integration with the netdev CI
- added several missing modules descriptions
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from bpf, netfilter and WiFi.
Jakub is doing a lot of work to include the self-tests in our CI, as a
result a significant amount of self-tests related fixes is flowing in
(and will likely continue in the next few weeks).
Current release - regressions:
- bpf: fix a kernel crash for the riscv 64 JIT
- bnxt_en: fix memory leak in bnxt_hwrm_get_rings()
- revert "net: macsec: use skb_ensure_writable_head_tail to expand
the skb"
Previous releases - regressions:
- core: fix removing a namespace with conflicting altnames
- tc/flower: fix chain template offload memory leak
- tcp:
- make sure init the accept_queue's spinlocks once
- fix autocork on CPUs with weak memory model
- udp: fix busy polling
- mlx5e:
- fix out-of-bound read in port timestamping
- fix peer flow lists corruption
- iwlwifi: fix a memory corruption
Previous releases - always broken:
- netfilter:
- nft_chain_filter: handle NETDEV_UNREGISTER for inet/ingress
basechain
- nft_limit: reject configurations that cause integer overflow
- bpf: fix bpf_xdp_adjust_tail() with XSK zero-copy mbuf, avoiding a
NULL pointer dereference upon shrinking
- llc: make llc_ui_sendmsg() more robust against bonding changes
- smc: fix illegal rmb_desc access in SMC-D connection dump
- dpll: fix pin dump crash for rebound module
- bnxt_en: fix possible crash after creating sw mqprio TCs
- hv_netvsc: calculate correct ring size when PAGE_SIZE is not 4kB
Misc:
- several self-tests fixes for better integration with the netdev CI
- added several missing modules descriptions"
* tag 'net-6.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (88 commits)
tsnep: Fix XDP_RING_NEED_WAKEUP for empty fill ring
tsnep: Remove FCS for XDP data path
net: fec: fix the unhandled context fault from smmu
selftests: bonding: do not test arp/ns target with mode balance-alb/tlb
fjes: fix memleaks in fjes_hw_setup
i40e: update xdp_rxq_info::frag_size for ZC enabled Rx queue
i40e: set xdp_rxq_info::frag_size
xdp: reflect tail increase for MEM_TYPE_XSK_BUFF_POOL
ice: update xdp_rxq_info::frag_size for ZC enabled Rx queue
intel: xsk: initialize skb_frag_t::bv_offset in ZC drivers
ice: remove redundant xdp_rxq_info registration
i40e: handle multi-buffer packets that are shrunk by xdp prog
ice: work on pre-XDP prog frag count
xsk: fix usage of multi-buffer BPF helpers for ZC XDP
xsk: make xsk_buff_pool responsible for clearing xdp_buff::flags
xsk: recycle buffer in case Rx queue was full
net: fill in MODULE_DESCRIPTION()s for rvu_mbox
net: fill in MODULE_DESCRIPTION()s for litex
net: fill in MODULE_DESCRIPTION()s for fsl_pq_mdio
net: fill in MODULE_DESCRIPTION()s for fec
...
One issue comes up while building selftest/landlock/fs_test on my side
(gcc 7.3/glibc-2.28/kernel-4.19).
gcc -Wall -O2 -isystem fs_test.c -lcap -o selftests/landlock/fs_test
fs_test.c:4575:9: error: initializer element is not constant
.mnt = mnt_tmp,
^~~~~~~
Signed-off-by: Hu Yadi <hu.yadi@h3c.com>
Suggested-by: Jiao <jiaoxupo@h3c.com>
Reviewed-by: Berlin <berlin@h3c.com>
Link: https://lore.kernel.org/r/20240124022908.42100-1-hu.yadi@h3c.com
Fixes: 04f9070e99 ("selftests/landlock: Add tests for pseudo filesystems")
[mic: Factor out mount's data string and make mnt_tmp static]
Signed-off-by: Mickaël Salaün <mic@digikod.net>
One issue comes up while building selftest/landlock/net_test on my side
(gcc 7.3/glibc-2.28/kernel-4.19).
net_test.c: In function ‘set_service’:
net_test.c:91:45: warning: implicit declaration of function ‘gettid’; [-Wimplicit-function-declaration]
"_selftests-landlock-net-tid%d-index%d", gettid(),
^~~~~~
getgid
net_test.c:(.text+0x4e0): undefined reference to `gettid'
Signed-off-by: Hu Yadi <hu.yadi@h3c.com>
Suggested-by: Jiao <jiaoxupo@h3c.com>
Reviewed-by: Berlin <berlin@h3c.com>
Fixes: a549d055a2 ("selftests/landlock: Add network tests")
Link: https://lore.kernel.org/r/20240123062621.25082-1-hu.yadi@h3c.com
[mic: Cosmetic fixes]
Signed-off-by: Mickaël Salaün <mic@digikod.net>
The prio_arp/ns tests hard code the mode to active-backup. At the same
time, The balance-alb/tlb modes do not support arp/ns target. So remove
the prio_arp/ns tests from the loop and only test active-backup mode.
Fixes: 481b56e039 ("selftests: bonding: re-format bond option tests")
Reported-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Closes: https://lore.kernel.org/netdev/17415.1705965957@famine/
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Link: https://lore.kernel.org/r/20240123075917.1576360-1-liuhangbin@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This test is missing a whole bunch of checks for interface
renaming and one ifup. Presumably it was only used on a system
with renaming disabled and NetworkManager running.
Fixes: 91f430b2c4 ("selftests: net: add a test for UDP tunnel info infra")
Acked-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240123060529.1033912-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
If there is more than 32 cpus the bitmask will start to contain
commas, leading to:
./rps_default_mask.sh: line 36: [: 00000000,00000000: integer expression expected
Remove the commas, bash doesn't interpret leading zeroes as oct
so that should be good enough. Switch to bash, Simon reports that
not all shells support this type of substitution.
Fixes: c12e0d5f26 ("self-tests: introduce self-tests for RPS default mask")
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240122195815.638997-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Jakub reported that ASSERT_EQ(cpu, i) in so_incoming_cpu.c seems to
fire somewhat randomly.
# # RUN so_incoming_cpu.before_reuseport.test3 ...
# # so_incoming_cpu.c:191:test3:Expected cpu (32) == i (0)
# # test3: Test terminated by assertion
# # FAIL so_incoming_cpu.before_reuseport.test3
# not ok 3 so_incoming_cpu.before_reuseport.test3
When the test failed, not-yet-accepted CLOSE_WAIT sockets received
SYN with a "challenging" SEQ number, which was sent from an unexpected
CPU that did not create the receiver.
The test basically does:
1. for each cpu:
1-1. create a server
1-2. set SO_INCOMING_CPU
2. for each cpu:
2-1. set cpu affinity
2-2. create some clients
2-3. let clients connect() to the server on the same cpu
2-4. close() clients
3. for each server:
3-1. accept() all child sockets
3-2. check if all children have the same SO_INCOMING_CPU with the server
The root cause was the close() in 2-4. and net.ipv4.tcp_tw_reuse.
In a loop of 2., close() changed the client state to FIN_WAIT_2, and
the peer transitioned to CLOSE_WAIT.
In another loop of 2., connect() happened to select the same port of
the FIN_WAIT_2 socket, and it was reused as the default value of
net.ipv4.tcp_tw_reuse is 2.
As a result, the new client sent SYN to the CLOSE_WAIT socket from
a different CPU, and the receiver's sk_incoming_cpu was overwritten
with unexpected CPU ID.
Also, the SYN had a different SEQ number, so the CLOSE_WAIT socket
responded with Challenge ACK. The new client properly returned RST
and effectively killed the CLOSE_WAIT socket.
This way, all clients were created successfully, but the error was
detected later by 3-2., ASSERT_EQ(cpu, i).
To avoid the failure, let's make sure that (i) the number of clients
is less than the number of available ports and (ii) such reuse never
happens.
Fixes: 6df96146b2 ("selftest: Add test for SO_INCOMING_CPU.")
Reported-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Tested-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20240120031642.67014-1-kuniyu@amazon.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Prevent warnings of the form:
tools/testing/nvdimm/config_check.c:4:6: error: no previous prototype
for ‘check’ [-Werror=missing-prototypes]
...by locally disabling some warnings.
It turns out that:
Commit 0fcb70851f ("Makefile.extrawarn: turn on missing-prototypes globally")
...in addition to expanding in-tree coverage, also impacts out-of-tree
module builds like those in tools/testing/nvdimm/.
Filter out the warning options on unit test code that does not effect
mainline builds.
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Link: https://lore.kernel.org/r/170543984331.460832.1780246477583036191.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Prevent warnings of the form:
tools/testing/cxl/test/mock.c:44:6: error: no previous prototype for
‘__wrap_is_acpi_device_node’ [-Werror=missing-prototypes]
tools/testing/cxl/test/mock.c:63:5: error: no previous prototype for
‘__wrap_acpi_table_parse_cedt’ [-Werror=missing-prototypes]
tools/testing/cxl/test/mock.c:81:13: error: no previous prototype for
‘__wrap_acpi_evaluate_integer’ [-Werror=missing-prototypes]
...by locally disabling some warnings.
It turns out that:
Commit 0fcb70851f ("Makefile.extrawarn: turn on missing-prototypes globally")
...in addition to expanding in-tree coverage, also impacts out-of-tree
module builds like those in tools/testing/cxl/.
Filter out the warning options on unit test code that does not effect
mainline builds.
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Link: https://lore.kernel.org/r/170543983780.460832.10920261849128601697.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Indexing with mm_cid is incompatible with skipping disallowed cpumask,
because concurrency IDs are based on a virtual ID allocation which is
unrelated to the physical CPU mask.
These issues can be reproduced by running the rseq selftests under a
taskset which excludes CPU 0, e.g.
taskset -c 10-20 ./run_param_test.sh
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Cc: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
When walking directory trees, instead of looking for specific files and
running dirname to get the parent folder, traverse all folders and
ignore the ones not containing the desired files. This avoids the need
to call dirname inside the loop, which drastically decreases run time:
Running locally on a mt8192-asurada-spherion, which reports 160 test
cases, has gone from 5.5s to 2.9s, while running remotely with an
nfsroot has gone from 13.5s to 5.5s.
This change has a side-effect, which is that the root DT node now
also shows in the output, even though it isn't expected to bind to a
driver. However there shouldn't be a matching driver for the board
compatible, so the end result will be just an extra skipped test:
ok 1 / # SKIP
Reported-by: Mark Brown <broonie@kernel.org>
Closes: https://lore.kernel.org/all/310391e8-fdf2-4c2f-a680-7744eb685177@sirena.org.uk
Fixes: 14571ab1ad ("kselftest: Add new test for detecting unprobed Devicetree devices")
Tested-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Link: https://lore.kernel.org/r/20240122-dt-kselftest-dirname-perf-fix-v2-1-f1630532fd38@collabora.com
Signed-off-by: Rob Herring <robh@kernel.org>
This includes everything from part 2:
* Support for tuning for systems with fast misaligned accesses.
* Support for SBI-based suspend.
* Support for the new SBI debug console extension.
* The T-Head CMOs now use PA-based flushes.
* Support for enabling the V extension in kernel code.
* Optimized IP checksum routines.
* Various ftrace improvements.
* Support for archrandom, which depends on the Zkr extension.
and then also a fix for those:
* The build is no longer broken under NET=n, KUNIT=y for ports that
don't define their own ipv6 checksum.
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Merge tag 'riscv-for-linus-6.8-mw4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull more RISC-V updates from Palmer Dabbelt:
- Support for tuning for systems with fast misaligned accesses.
- Support for SBI-based suspend.
- Support for the new SBI debug console extension.
- The T-Head CMOs now use PA-based flushes.
- Support for enabling the V extension in kernel code.
- Optimized IP checksum routines.
- Various ftrace improvements.
- Support for archrandom, which depends on the Zkr extension.
- The build is no longer broken under NET=n, KUNIT=y for ports that
don't define their own ipv6 checksum.
* tag 'riscv-for-linus-6.8-mw4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (56 commits)
lib: checksum: Fix build with CONFIG_NET=n
riscv: lib: Check if output in asm goto supported
riscv: Fix build error on rv32 + XIP
riscv: optimize ELF relocation function in riscv
RISC-V: Implement archrandom when Zkr is available
riscv: Optimize hweight API with Zbb extension
riscv: add dependency among Image(.gz), loader(.bin), and vmlinuz.efi
samples: ftrace: Add RISC-V support for SAMPLE_FTRACE_DIRECT[_MULTI]
riscv: ftrace: Add DYNAMIC_FTRACE_WITH_DIRECT_CALLS support
riscv: ftrace: Make function graph use ftrace directly
riscv: select FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY
lib/Kconfig.debug: Update AS_HAS_NON_CONST_LEB128 comment and name
riscv: Restrict DWARF5 when building with LLVM to known working versions
riscv: Hoist linker relaxation disabling logic into Kconfig
kunit: Add tests for csum_ipv6_magic and ip_fast_csum
riscv: Add checksum library
riscv: Add checksum header
riscv: Add static key for misaligned accesses
asm-generic: Improve csum_fold
RISC-V: selftests: cbo: Ensure asm operands match constraints
...
When tests are run by runner.sh, bond_options.sh gets killed before
it can complete:
make -C tools/testing/selftests run_tests TARGETS="drivers/net/bonding"
[...]
# timeout set to 120
# selftests: drivers/net/bonding: bond_options.sh
# TEST: prio (active-backup miimon primary_reselect 0) [ OK ]
# TEST: prio (active-backup miimon primary_reselect 1) [ OK ]
# TEST: prio (active-backup miimon primary_reselect 2) [ OK ]
# TEST: prio (active-backup arp_ip_target primary_reselect 0) [ OK ]
# TEST: prio (active-backup arp_ip_target primary_reselect 1) [ OK ]
# TEST: prio (active-backup arp_ip_target primary_reselect 2) [ OK ]
#
not ok 7 selftests: drivers/net/bonding: bond_options.sh # TIMEOUT 120 seconds
This test includes many sleep statements, at least some of which are
related to timers in the operation of the bonding driver itself. Increase
the test timeout to allow the test to complete.
I ran the test in slightly different VMs (including one without HW
virtualization support) and got runtimes of 13m39.760s, 13m31.238s, and
13m2.956s. Use a ~1.5x "safety factor" and set the timeout to 1200s.
Fixes: 42a8d4aaea ("selftests: bonding: add bonding prio option test")
Reported-by: Jakub Kicinski <kuba@kernel.org>
Closes: https://lore.kernel.org/netdev/20240116104402.1203850a@kernel.org/#t
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Benjamin Poirier <bpoirier@nvidia.com>
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://lore.kernel.org/r/20240118001233.304759-1-bpoirier@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The KVM RISC-V allows Zfa extension for Guest/VM so let us
add this extension to get-reg-list test.
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
The KVM RISC-V allows Zvfh[min] extensions for Guest/VM so let us
add these extensions to get-reg-list test.
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
The KVM RISC-V allows Zihintntl extension for Guest/VM so let us
add this extension to get-reg-list test.
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
The KVM RISC-V allows Zfh[min] extensions for Guest/VM so let us
add these extensions to get-reg-list test.
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
The KVM RISC-V allows vector crypto extensions for Guest/VM so let us
add these extensions to get-reg-list test. This includes extensions
Zvbb, Zvbc, Zvkb, Zvkg, Zvkned, Zvknha, Zvknhb, Zvksed, Zvksh, and Zvkt.
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
The KVM RISC-V allows scaler crypto extensions for Guest/VM so let us
add these extensions to get-reg-list test. This includes extensions
Zbkb, Zbkc, Zbkx, Zknd, Zkne, Zknh, Zkr, Zksed, Zksh, and Zkt.
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
The KVM RISC-V allows Zbc extension for Guest/VM so let us add
this extension to get-reg-list test.
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
Previous releases - regressions:
- Revert "net: rtnetlink: Enslave device before bringing it up",
breaks the case inverse to the one it was trying to fix
- net: dsa: fix oob access in DSA's netdevice event handler
dereference netdev_priv() before check its a DSA port
- sched: track device in tcf_block_get/put_ext() only for clsact
binder types
- net: tls, fix WARNING in __sk_msg_free when record becomes full
during splice and MORE hint set
- sfp-bus: fix SFP mode detect from bitrate
- drv: stmmac: prevent DSA tags from breaking COE
Previous releases - always broken:
- bpf: fix no forward progress in in bpf_iter_udp if output
buffer is too small
- bpf: reject variable offset alu on registers with a type
of PTR_TO_FLOW_KEYS to prevent oob access
- netfilter: tighten input validation
- net: add more sanity check in virtio_net_hdr_to_skb()
- rxrpc: fix use of Don't Fragment flag on RESPONSE packets,
avoid infinite loop
- amt: do not use the portion of skb->cb area which may get clobbered
- mptcp: improve validation of the MPTCPOPT_MP_JOIN MCTCP option
Misc:
- spring cleanup of inactive maintainers
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from bpf and netfilter.
Previous releases - regressions:
- Revert "net: rtnetlink: Enslave device before bringing it up",
breaks the case inverse to the one it was trying to fix
- net: dsa: fix oob access in DSA's netdevice event handler
dereference netdev_priv() before check its a DSA port
- sched: track device in tcf_block_get/put_ext() only for clsact
binder types
- net: tls, fix WARNING in __sk_msg_free when record becomes full
during splice and MORE hint set
- sfp-bus: fix SFP mode detect from bitrate
- drv: stmmac: prevent DSA tags from breaking COE
Previous releases - always broken:
- bpf: fix no forward progress in in bpf_iter_udp if output buffer is
too small
- bpf: reject variable offset alu on registers with a type of
PTR_TO_FLOW_KEYS to prevent oob access
- netfilter: tighten input validation
- net: add more sanity check in virtio_net_hdr_to_skb()
- rxrpc: fix use of Don't Fragment flag on RESPONSE packets, avoid
infinite loop
- amt: do not use the portion of skb->cb area which may get clobbered
- mptcp: improve validation of the MPTCPOPT_MP_JOIN MCTCP option
Misc:
- spring cleanup of inactive maintainers"
* tag 'net-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (88 commits)
i40e: Include types.h to some headers
ipv6: mcast: fix data-race in ipv6_mc_down / mld_ifc_work
selftests: mlxsw: qos_pfc: Adjust the test to support 8 lanes
selftests: mlxsw: qos_pfc: Remove wrong description
mlxsw: spectrum_router: Register netdevice notifier before nexthop
mlxsw: spectrum_acl_tcam: Fix stack corruption
mlxsw: spectrum_acl_tcam: Fix NULL pointer dereference in error path
mlxsw: spectrum_acl_erp: Fix error flow of pool allocation failure
ethtool: netlink: Add missing ethnl_ops_begin/complete
selftests: bonding: Add more missing config options
selftests: netdevsim: add a config file
libbpf: warn on unexpected __arg_ctx type when rewriting BTF
selftests/bpf: add tests confirming type logic in kernel for __arg_ctx
bpf: enforce types for __arg_ctx-tagged arguments in global subprogs
bpf: extract bpf_ctx_convert_map logic and make it more reusable
libbpf: feature-detect arg:ctx tag support in kernel
ipvs: avoid stat macros calls from preemptible context
netfilter: nf_tables: reject NFT_SET_CONCAT with not field length description
netfilter: nf_tables: skip dead set elements in netlink dump
netfilter: nf_tables: do not allow mismatch field size and set key length
...
- Add support for parsing the Coherent Device Attribute Table (CDAT)
- Add support for calculating a platform CXL QoS class from CDAT data
- Unify the tracing of EFI CXL Events with native CXL Events.
- Add Get Timestamp support
- Miscellaneous cleanups and fixups
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Merge tag 'cxl-for-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
Pull CXL (Compute Express Link) updates from Dan Williams:
"The bulk of this update is support for enumerating the performance
capabilities of CXL memory targets and connecting that to a platform
CXL memory QoS class. Some follow-on work remains to hook up this data
into core-mm policy, but that is saved for v6.9.
The next significant update is unifying how CXL event records (things
like background scrub errors) are processed between so called
"firmware first" and native error record retrieval. The CXL driver
handler that processes the record retrieved from the device mailbox is
now the handler for that same record format coming from an EFI/ACPI
notification source.
This also contains miscellaneous feature updates, like Get Timestamp,
and other fixups.
Summary:
- Add support for parsing the Coherent Device Attribute Table (CDAT)
- Add support for calculating a platform CXL QoS class from CDAT data
- Unify the tracing of EFI CXL Events with native CXL Events.
- Add Get Timestamp support
- Miscellaneous cleanups and fixups"
* tag 'cxl-for-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (41 commits)
cxl/core: use sysfs_emit() for attr's _show()
cxl/pci: Register for and process CPER events
PCI: Introduce cleanup helpers for device reference counts and locks
acpi/ghes: Process CXL Component Events
cxl/events: Create a CXL event union
cxl/events: Separate UUID from event structures
cxl/events: Remove passing a UUID to known event traces
cxl/events: Create common event UUID defines
cxl/events: Promote CXL event structures to a core header
cxl: Refactor to use __free() for cxl_root allocation in cxl_endpoint_port_probe()
cxl: Refactor to use __free() for cxl_root allocation in cxl_find_nvdimm_bridge()
cxl: Fix device reference leak in cxl_port_perf_data_calculate()
cxl: Convert find_cxl_root() to return a 'struct cxl_root *'
cxl: Introduce put_cxl_root() helper
cxl/port: Fix missing target list lock
cxl/port: Fix decoder initialization when nr_targets > interleave_ways
cxl/region: fix x9 interleave typo
cxl/trace: Pass UUID explicitly to event traces
cxl/region: use %pap format to print resource_size_t
cxl/region: Add dev_dbg() detail on failure to allocate HPA space
...
This brings the first of three planned user IO page table invalidation
operations:
- IOMMU_HWPT_INVALIDATE allows invalidating the IOTLB integrated into the
iommu itself. The Intel implementation will also generate an ATC
invalidation to flush the device IOTLB as it unambiguously knows the
device, but other HW will not.
It goes along with the prior PR to implement userspace IO page tables (aka
nested translation for VMs) to allow Intel to have full functionality for
simple cases. An Intel implementation of the operation is provided.
Fix a small bug in the selftest mock iommu driver probe.
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Merge tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd
Pull iommufd updates from Jason Gunthorpe:
"This brings the first of three planned user IO page table invalidation
operations:
- IOMMU_HWPT_INVALIDATE allows invalidating the IOTLB integrated into
the iommu itself. The Intel implementation will also generate an
ATC invalidation to flush the device IOTLB as it unambiguously
knows the device, but other HW will not.
It goes along with the prior PR to implement userspace IO page tables
(aka nested translation for VMs) to allow Intel to have full
functionality for simple cases. An Intel implementation of the
operation is provided.
Also fix a small bug in the selftest mock iommu driver probe"
* tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd:
iommufd/selftest: Check the bus type during probe
iommu/vt-d: Add iotlb flush for nested domain
iommufd: Add data structure for Intel VT-d stage-1 cache invalidation
iommufd/selftest: Add coverage for IOMMU_HWPT_INVALIDATE ioctl
iommufd/selftest: Add IOMMU_TEST_OP_MD_CHECK_IOTLB test op
iommufd/selftest: Add mock_domain_cache_invalidate_user support
iommu: Add iommu_copy_struct_from_user_array helper
iommufd: Add IOMMU_HWPT_INVALIDATE
iommu: Add cache_invalidate_user op
- Allow kernel trace instance creation to specify what events are created
Inside the kernel, a subsystem may create a tracing instance that it can
use to send events to user space. This sub-system may not care about the
thousands of events that exist in eventfs. Allow the sub-system to specify
what sub-systems of events it cares about, and only those events are exposed
to this instance.
- Allow the ring buffer to be broken up into bigger sub-buffers than just the
architecture page size. A new tracefs file called "buffer_subbuf_size_kb"
is created. The user can now specify a minimum size the sub-buffer may be
in kilobytes. Note, that the implementation currently make the sub-buffer
size a power of 2 pages (1, 2, 4, 8, 16, ...) but the user only writes in
kilobyte size, and the sub-buffer will be updated to the next size that
it will can accommodate it. If the user writes in 10, it will change the
size to be 4 pages on x86 (16K), as that is the next available size that
can hold 10K pages.
- Update the debug output when a corrupt time is detected in the ring buffer.
If the ring buffer detects inconsistent timestamps, there's a debug config
options that will dump the contents of the meta data of the sub-buffer that
is used for debugging. Add some more information to this dump that helps
with debugging.
- Add more timestamp debugging checks (only triggers when the config is enabled)
- Increase the trace_seq iterator to 2 page sizes.
- Allow strings written into tracefs_marker to be larger. Up to just under
2 page sizes (based on what trace_seq can hold).
- Increase the trace_maker_raw write to be as big as a sub-buffer can hold.
- Remove 32 bit time stamp logic, now that the rb_time_cmpxchg() has been
removed.
- More selftests were added.
- Some code clean ups as well.
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Merge tag 'trace-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing updates from Steven Rostedt:
- Allow kernel trace instance creation to specify what events are
created
Inside the kernel, a subsystem may create a tracing instance that it
can use to send events to user space. This sub-system may not care
about the thousands of events that exist in eventfs. Allow the
sub-system to specify what sub-systems of events it cares about, and
only those events are exposed to this instance.
- Allow the ring buffer to be broken up into bigger sub-buffers than
just the architecture page size.
A new tracefs file called "buffer_subbuf_size_kb" is created. The
user can now specify a minimum size the sub-buffer may be in
kilobytes. Note, that the implementation currently make the
sub-buffer size a power of 2 pages (1, 2, 4, 8, 16, ...) but the user
only writes in kilobyte size, and the sub-buffer will be updated to
the next size that it will can accommodate it. If the user writes in
10, it will change the size to be 4 pages on x86 (16K), as that is
the next available size that can hold 10K pages.
- Update the debug output when a corrupt time is detected in the ring
buffer. If the ring buffer detects inconsistent timestamps, there's a
debug config options that will dump the contents of the meta data of
the sub-buffer that is used for debugging. Add some more information
to this dump that helps with debugging.
- Add more timestamp debugging checks (only triggers when the config is
enabled)
- Increase the trace_seq iterator to 2 page sizes.
- Allow strings written into tracefs_marker to be larger. Up to just
under 2 page sizes (based on what trace_seq can hold).
- Increase the trace_maker_raw write to be as big as a sub-buffer can
hold.
- Remove 32 bit time stamp logic, now that the rb_time_cmpxchg() has
been removed.
- More selftests were added.
- Some code clean ups as well.
* tag 'trace-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: (29 commits)
ring-buffer: Remove stale comment from ring_buffer_size()
tracing histograms: Simplify parse_actions() function
tracing/selftests: Remove exec permissions from trace_marker.tc test
ring-buffer: Use subbuf_order for buffer page masking
tracing: Update subbuffer with kilobytes not page order
ringbuffer/selftest: Add basic selftest to test changing subbuf order
ring-buffer: Add documentation on the buffer_subbuf_order file
ring-buffer: Just update the subbuffers when changing their allocation order
ring-buffer: Keep the same size when updating the order
tracing: Stop the tracing while changing the ring buffer subbuf size
tracing: Update snapshot order along with main buffer order
ring-buffer: Make sure the spare sub buffer used for reads has same size
ring-buffer: Do no swap cpu buffers if order is different
ring-buffer: Clear pages on error in ring_buffer_subbuf_order_set() failure
ring-buffer: Read and write to ring buffers with custom sub buffer size
ring-buffer: Set new size of the ring buffer sub page
ring-buffer: Add interface for configuring trace sub buffer size
ring-buffer: Page size per ring buffer
ring-buffer: Have ring_buffer_print_page_header() be able to access ring_buffer_iter
ring-buffer: Check if absolute timestamp goes backwards
...
- Avoid building selftests when not on x86
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Merge tag 'x86_sgx_for_6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 SGX updates from Dave Hansen:
"This time, these are entirely confined to SGX selftests fixes.
The mini SGX enclave built by the selftests has garnered some
attention because it stands alone and does not need the sizable
infrastructure of the official SGX SDK. I think that's why folks are
suddently interested in cleaning it up.
- Clean up selftest compilation issues, mostly from non-gcc compilers
- Avoid building selftests when not on x86"
* tag 'x86_sgx_for_6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
selftests/sgx: Skip non X86_64 platform
selftests/sgx: Remove incomplete ABI sanitization code in test enclave
selftests/sgx: Discard unsupported ELF sections
selftests/sgx: Ensure expected location of test enclave buffer
selftests/sgx: Ensure test enclave buffer is entirely preserved
selftests/sgx: Fix linker script asserts
selftests/sgx: Handle relocations in test enclave
selftests/sgx: Produce static-pie executable for test enclave
selftests/sgx: Remove redundant enclave base address save/restore
selftests/sgx: Specify freestanding environment for enclave compilation
selftests/sgx: Separate linker options
selftests/sgx: Include memory clobber for inline asm in test enclave
selftests/sgx: Fix uninitialized pointer dereferences in encl_get_entry
selftests/sgx: Fix uninitialized pointer dereference in error path
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Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Daniel Borkmann says:
====================
pull-request: bpf 2024-01-18
We've added 10 non-merge commits during the last 5 day(s) which contain
a total of 12 files changed, 806 insertions(+), 51 deletions(-).
The main changes are:
1) Fix an issue in bpf_iter_udp under backward progress which prevents
user space process from finishing iteration, from Martin KaFai Lau.
2) Fix BPF verifier to reject variable offset alu on registers with a type
of PTR_TO_FLOW_KEYS to prevent oob access, from Hao Sun.
3) Follow up fixes for kernel- and libbpf-side logic around handling
arg:ctx tagged arguments of BPF global subprogs, from Andrii Nakryiko.
* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
libbpf: warn on unexpected __arg_ctx type when rewriting BTF
selftests/bpf: add tests confirming type logic in kernel for __arg_ctx
bpf: enforce types for __arg_ctx-tagged arguments in global subprogs
bpf: extract bpf_ctx_convert_map logic and make it more reusable
libbpf: feature-detect arg:ctx tag support in kernel
selftests/bpf: Add test for alu on PTR_TO_FLOW_KEYS
bpf: Reject variable offset alu on PTR_TO_FLOW_KEYS
selftests/bpf: Test udp and tcp iter batching
bpf: Avoid iter->offset making backward progress in bpf_iter_udp
bpf: iter_udp: Retry with a larger batch size without going back to the previous bucket
====================
Link: https://lore.kernel.org/r/20240118153936.11769-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
'qos_pfc' test checks PFC behavior. The idea is to limit the traffic
using a shaper somewhere in the flow of the packets. In this area, the
buffer is smaller than the buffer at the beginning of the flow, so it fills
up until there is no more space left. The test configures there PFC
which is supposed to notice that the headroom is filling up and send PFC
Xoff to indicate the transmitter to stop sending traffic for the priorities
sharing this PG.
The Xon/Xoff threshold is auto-configured and always equal to
2*(MTU rounded up to cell size). Even after sending the PFC Xoff packet,
traffic will keep arriving until the transmitter receives and processes
the PFC packet. This amount of traffic is known as the PFC delay allowance.
Currently the buffer for the delay traffic is configured as 100KB. The
MTU in the test is 10KB, therefore the threshold for Xoff is about 20KB.
This allows 80KB extra to be stored in this buffer.
8-lane ports use two buffers among which the configured buffer is split,
the Xoff threshold then applies to each buffer in parallel.
The test does not take into account the behavior of 8-lane ports, when the
ports are configured to 400Gbps with 8 lanes or 800Gbps with 8 lanes,
packets are dropped and the test fails.
Check if the relevant ports use 8 lanes, in such case double the size of
the buffer, as the headroom is split half-half.
Cc: Shuah Khan <shuah@kernel.org>
Fixes: bfa804784e ("selftests: mlxsw: Add a PFC test")
Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Link: https://lore.kernel.org/r/23ff11b7dff031eb04a41c0f5254a2b636cd8ebb.1705502064.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In the diagram of the topology, $swp3 and $swp4 are described as 1Gbps
ports. This is wrong information, the test does not configure such speed.
Cc: Shuah Khan <shuah@kernel.org>
Fixes: bfa804784e ("selftests: mlxsw: Add a PFC test")
Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Link: https://lore.kernel.org/r/0087e2d416aff7e444d15f7c2958fc1d438dc27e.1705502064.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When tc filters are first added to a net device, the corresponding local
port gets bound to an ACL group in the device. The group contains a list
of ACLs. In turn, each ACL points to a different TCAM region where the
filters are stored. During forwarding, the ACLs are sequentially
evaluated until a match is found.
One reason to place filters in different regions is when they are added
with decreasing priorities and in an alternating order so that two
consecutive filters can never fit in the same region because of their
key usage.
In Spectrum-2 and newer ASICs the firmware started to report that the
maximum number of ACLs in a group is more than 16, but the layout of the
register that configures ACL groups (PAGT) was not updated to account
for that. It is therefore possible to hit stack corruption [1] in the
rare case where more than 16 ACLs in a group are required.
Fix by limiting the maximum ACL group size to the minimum between what
the firmware reports and the maximum ACLs that fit in the PAGT register.
Add a test case to make sure the machine does not crash when this
condition is hit.
[1]
Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: mlxsw_sp_acl_tcam_group_update+0x116/0x120
[...]
dump_stack_lvl+0x36/0x50
panic+0x305/0x330
__stack_chk_fail+0x15/0x20
mlxsw_sp_acl_tcam_group_update+0x116/0x120
mlxsw_sp_acl_tcam_group_region_attach+0x69/0x110
mlxsw_sp_acl_tcam_vchunk_get+0x492/0xa20
mlxsw_sp_acl_tcam_ventry_add+0x25/0xe0
mlxsw_sp_acl_rule_add+0x47/0x240
mlxsw_sp_flower_replace+0x1a9/0x1d0
tc_setup_cb_add+0xdc/0x1c0
fl_hw_replace_filter+0x146/0x1f0
fl_change+0xc17/0x1360
tc_new_tfilter+0x472/0xb90
rtnetlink_rcv_msg+0x313/0x3b0
netlink_rcv_skb+0x58/0x100
netlink_unicast+0x244/0x390
netlink_sendmsg+0x1e4/0x440
____sys_sendmsg+0x164/0x260
___sys_sendmsg+0x9a/0xe0
__sys_sendmsg+0x7a/0xc0
do_syscall_64+0x40/0xe0
entry_SYSCALL_64_after_hwframe+0x63/0x6b
Fixes: c3ab435466 ("mlxsw: spectrum: Extend to support Spectrum-2 ASIC")
Reported-by: Orel Hagag <orelh@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Amit Cohen <amcohen@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Link: https://lore.kernel.org/r/2d91c89afba59c22587b444994ae419dbea8d876.1705502064.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Lately, a bug was found when many TC filters are added - at some point,
several bugs are printed to dmesg [1] and the switch is crashed with
segmentation fault.
The issue starts when gen_pool_free() fails because of unexpected
behavior - a try to free memory which is already freed, this leads to BUG()
call which crashes the switch and makes many other bugs.
Trying to track down the unexpected behavior led to a bug in eRP code. The
function mlxsw_sp_acl_erp_table_alloc() gets a pointer to the allocated
index, sets the value and returns an error code. When gen_pool_alloc()
fails it returns address 0, we track it and return -ENOBUFS outside, BUT
the call for gen_pool_alloc() already override the index in erp_table
structure. This is a problem when such allocation is done as part of
table expansion. This is not a new table, which will not be used in case
of allocation failure. We try to expand eRP table and override the
current index (non-zero) with zero. Then, it leads to an unexpected
behavior when address 0 is freed twice. Note that address 0 is valid in
erp_table->base_index and indeed other tables use it.
gen_pool_alloc() fails in case that there is no space left in the
pre-allocated pool, in our case, the pool is limited to
ACL_MAX_ERPT_BANK_SIZE, which is read from hardware. When more than max
erp entries are required, we exceed the limit and return an error, this
error leads to "Failed to migrate vregion" print.
Fix this by changing erp_table->base_index only in case of a successful
allocation.
Add a test case for such a scenario. Without this fix it causes
segmentation fault:
$ TESTS="max_erp_entries_test" ./tc_flower.sh
./tc_flower.sh: line 988: 1560 Segmentation fault tc filter del dev $h2 ingress chain $i protocol ip pref $i handle $j flower &>/dev/null
[1]:
kernel BUG at lib/genalloc.c:508!
invalid opcode: 0000 [#1] PREEMPT SMP
CPU: 6 PID: 3531 Comm: tc Not tainted 6.7.0-rc5-custom-ga6893f479f5e #1
Hardware name: Mellanox Technologies Ltd. MSN4700/VMOD0010, BIOS 5.11 07/12/2021
RIP: 0010:gen_pool_free_owner+0xc9/0xe0
...
Call Trace:
<TASK>
__mlxsw_sp_acl_erp_table_other_dec+0x70/0xa0 [mlxsw_spectrum]
mlxsw_sp_acl_erp_mask_destroy+0xf5/0x110 [mlxsw_spectrum]
objagg_obj_root_destroy+0x18/0x80 [objagg]
objagg_obj_destroy+0x12c/0x130 [objagg]
mlxsw_sp_acl_erp_mask_put+0x37/0x50 [mlxsw_spectrum]
mlxsw_sp_acl_ctcam_region_entry_remove+0x74/0xa0 [mlxsw_spectrum]
mlxsw_sp_acl_ctcam_entry_del+0x1e/0x40 [mlxsw_spectrum]
mlxsw_sp_acl_tcam_ventry_del+0x78/0xd0 [mlxsw_spectrum]
mlxsw_sp_flower_destroy+0x4d/0x70 [mlxsw_spectrum]
mlxsw_sp_flow_block_cb+0x73/0xb0 [mlxsw_spectrum]
tc_setup_cb_destroy+0xc1/0x180
fl_hw_destroy_filter+0x94/0xc0 [cls_flower]
__fl_delete+0x1ac/0x1c0 [cls_flower]
fl_destroy+0xc2/0x150 [cls_flower]
tcf_proto_destroy+0x1a/0xa0
...
mlxsw_spectrum3 0000:07:00.0: Failed to migrate vregion
mlxsw_spectrum3 0000:07:00.0: Failed to migrate vregion
Fixes: f465261aa1 ("mlxsw: spectrum_acl: Implement common eRP core")
Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Link: https://lore.kernel.org/r/4cfca254dfc0e5d283974801a24371c7b6db5989.1705502064.git.petrm@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
As a followup to commit 03fb8565c8 ("selftests: bonding: add missing
build configs"), add more networking-specific config options which are
needed for bonding tests.
For testing, I used the minimal config generated by virtme-ng and I added
the options in the config file. All bonding tests passed.
Fixes: bbb774d921 ("net: Add tests for bonding and team address list management") # for ipv6
Fixes: 6cbe791c0f ("kselftest: bonding: add num_grat_arp test") # for tc options
Fixes: 222c94ec0a ("selftests: bonding: add tests for ether type changes") # for nlmon
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Benjamin Poirier <bpoirier@nvidia.com>
Link: https://lore.kernel.org/r/20240116154926.202164-1-bpoirier@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
netdevsim tests aren't very well integrated with kselftest,
which has its advantages and disadvantages. But regardless
of the intended integration - a config file to know what kernel
to build is very useful, add one.
Fixes: fc4c93f145 ("selftests: add basic netdevsim devlink flash testing")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20240116154311.1945801-1-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Add a bunch of global subprogs across variety of program types to
validate expected kernel type enforcement logic for __arg_ctx arguments.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20240118033143.3384355-5-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Add feature detector of kernel-side arg:ctx (__arg_ctx) tag support. If
this is detected, libbpf will avoid doing any __arg_ctx-related BTF
rewriting and checks in favor of letting kernel handle this completely.
test_global_funcs/ctx_arg_rewrite subtest is adjusted to do the same
feature detection (albeit in much simpler, though round-about and
inefficient, way), and skip the tests. This is done to still be able to
execute this test on older kernels (like in libbpf CI).
Note, BPF token series ([0]) does a major refactor and code moving of
libbpf-internal feature detection "framework", so to avoid unnecessary
conflicts we keep newly added feature detection stand-alone with ad-hoc
result caching. Once things settle, there will be a small follow up to
re-integrate everything back and move code into its final place in
newly-added (by BPF token series) features.c file.
[0] https://patchwork.kernel.org/project/netdevbpf/list/?series=814209&state=*
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20240118033143.3384355-2-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
The 'i' constraint expects a constant operand, which fn and its
constant derivative MK_CBO(fn) are, but passing fn through a function
as a parameter and using a local variable for MK_CBO(fn) allow the
compiler to lose sight of that when no optimization is done. Use
a macro instead of a function and skip the local variable to ensure
the compiler uses constants, matching the asm constraints.
Reported-by: Yunhui Cui <cuiyunhui@bytedance.com>
Closes: https://lore.kernel.org/all/20240117082514.42967-1-cuiyunhui@bytedance.com
Fixes: a29e2a48af ("RISC-V: selftests: Add CBO tests")
Signed-off-by: Andrew Jones <ajones@ventanamicro.com>
Link: https://lore.kernel.org/r/20240117130933.57514-2-ajones@ventanamicro.com
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Here is the big set of char/misc and other driver subsystem changes for
6.8-rc1. Lots of stuff in here, but first off, you will get a merge
conflict in drivers/android/binder_alloc.c when merging this tree due to
changing coming in through the -mm tree.
The resolution of the merge issue can be found here:
https://lore.kernel.org/r/20231207134213.25631ae9@canb.auug.org.au
or in a simpler patch form in that thread:
https://lore.kernel.org/r/ZXHzooF07LfQQYiE@google.com
If there are issues with the merge of this file, please let me know.
Other than lots of binder driver changes (as you can see by the merge
conflicts) included in here are:
- lots of iio driver updates and additions
- spmi driver updates
- eeprom driver updates
- firmware driver updates
- ocxl driver updates
- mhi driver updates
- w1 driver updates
- nvmem driver updates
- coresight driver updates
- platform driver remove callback api changes
- tags.sh script updates
- bus_type constant marking cleanups
- lots of other small driver updates
All of these have been in linux-next for a while with no reported issues
(other than the binder merge conflict.)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc and other driver updates from Greg KH:
"Here is the big set of char/misc and other driver subsystem changes
for 6.8-rc1.
Other than lots of binder driver changes (as you can see by the merge
conflicts) included in here are:
- lots of iio driver updates and additions
- spmi driver updates
- eeprom driver updates
- firmware driver updates
- ocxl driver updates
- mhi driver updates
- w1 driver updates
- nvmem driver updates
- coresight driver updates
- platform driver remove callback api changes
- tags.sh script updates
- bus_type constant marking cleanups
- lots of other small driver updates
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (341 commits)
android: removed duplicate linux/errno
uio: Fix use-after-free in uio_open
drivers: soc: xilinx: add check for platform
firmware: xilinx: Export function to use in other module
scripts/tags.sh: remove find_sources
scripts/tags.sh: use -n to test archinclude
scripts/tags.sh: add local annotation
scripts/tags.sh: use more portable -path instead of -wholename
scripts/tags.sh: Update comment (addition of gtags)
firmware: zynqmp: Convert to platform remove callback returning void
firmware: turris-mox-rwtm: Convert to platform remove callback returning void
firmware: stratix10-svc: Convert to platform remove callback returning void
firmware: stratix10-rsu: Convert to platform remove callback returning void
firmware: raspberrypi: Convert to platform remove callback returning void
firmware: qemu_fw_cfg: Convert to platform remove callback returning void
firmware: mtk-adsp-ipc: Convert to platform remove callback returning void
firmware: imx-dsp: Convert to platform remove callback returning void
firmware: coreboot_table: Convert to platform remove callback returning void
firmware: arm_scpi: Convert to platform remove callback returning void
firmware: arm_scmi: Convert to platform remove callback returning void
...
- Use memdup_array_user() to harden against overflow.
- Unconditionally advertise KVM_CAP_DEVICE_CTRL for all architectures.
- Clean up Kconfigs that all KVM architectures were selecting
- New functionality around "guest_memfd", a new userspace API that
creates an anonymous file and returns a file descriptor that refers
to it. guest_memfd files are bound to their owning virtual machine,
cannot be mapped, read, or written by userspace, and cannot be resized.
guest_memfd files do however support PUNCH_HOLE, which can be used to
switch a memory area between guest_memfd and regular anonymous memory.
- New ioctl KVM_SET_MEMORY_ATTRIBUTES allowing userspace to specify
per-page attributes for a given page of guest memory; right now the
only attribute is whether the guest expects to access memory via
guest_memfd or not, which in Confidential SVMs backed by SEV-SNP,
TDX or ARM64 pKVM is checked by firmware or hypervisor that guarantees
confidentiality (AMD PSP, Intel TDX module, or EL2 in the case of pKVM).
x86:
- Support for "software-protected VMs" that can use the new guest_memfd
and page attributes infrastructure. This is mostly useful for testing,
since there is no pKVM-like infrastructure to provide a meaningfully
reduced TCB.
- Fix a relatively benign off-by-one error when splitting huge pages during
CLEAR_DIRTY_LOG.
- Fix a bug where KVM could incorrectly test-and-clear dirty bits in non-leaf
TDP MMU SPTEs if a racing thread replaces a huge SPTE with a non-huge SPTE.
- Use more generic lockdep assertions in paths that don't actually care
about whether the caller is a reader or a writer.
- let Xen guests opt out of having PV clock reported as "based on a stable TSC",
because some of them don't expect the "TSC stable" bit (added to the pvclock
ABI by KVM, but never set by Xen) to be set.
- Revert a bogus, made-up nested SVM consistency check for TLB_CONTROL.
- Advertise flush-by-ASID support for nSVM unconditionally, as KVM always
flushes on nested transitions, i.e. always satisfies flush requests. This
allows running bleeding edge versions of VMware Workstation on top of KVM.
- Sanity check that the CPU supports flush-by-ASID when enabling SEV support.
- On AMD machines with vNMI, always rely on hardware instead of intercepting
IRET in some cases to detect unmasking of NMIs
- Support for virtualizing Linear Address Masking (LAM)
- Fix a variety of vPMU bugs where KVM fail to stop/reset counters and other state
prior to refreshing the vPMU model.
- Fix a double-overflow PMU bug by tracking emulated counter events using a
dedicated field instead of snapshotting the "previous" counter. If the
hardware PMC count triggers overflow that is recognized in the same VM-Exit
that KVM manually bumps an event count, KVM would pend PMIs for both the
hardware-triggered overflow and for KVM-triggered overflow.
- Turn off KVM_WERROR by default for all configs so that it's not
inadvertantly enabled by non-KVM developers, which can be problematic for
subsystems that require no regressions for W=1 builds.
- Advertise all of the host-supported CPUID bits that enumerate IA32_SPEC_CTRL
"features".
- Don't force a masterclock update when a vCPU synchronizes to the current TSC
generation, as updating the masterclock can cause kvmclock's time to "jump"
unexpectedly, e.g. when userspace hotplugs a pre-created vCPU.
- Use RIP-relative address to read kvm_rebooting in the VM-Enter fault paths,
partly as a super minor optimization, but mostly to make KVM play nice with
position independent executable builds.
- Guard KVM-on-HyperV's range-based TLB flush hooks with an #ifdef on
CONFIG_HYPERV as a minor optimization, and to self-document the code.
- Add CONFIG_KVM_HYPERV to allow disabling KVM support for HyperV "emulation"
at build time.
ARM64:
- LPA2 support, adding 52bit IPA/PA capability for 4kB and 16kB
base granule sizes. Branch shared with the arm64 tree.
- Large Fine-Grained Trap rework, bringing some sanity to the
feature, although there is more to come. This comes with
a prefix branch shared with the arm64 tree.
- Some additional Nested Virtualization groundwork, mostly
introducing the NV2 VNCR support and retargetting the NV
support to that version of the architecture.
- A small set of vgic fixes and associated cleanups.
Loongarch:
- Optimization for memslot hugepage checking
- Cleanup and fix some HW/SW timer issues
- Add LSX/LASX (128bit/256bit SIMD) support
RISC-V:
- KVM_GET_REG_LIST improvement for vector registers
- Generate ISA extension reg_list using macros in get-reg-list selftest
- Support for reporting steal time along with selftest
s390:
- Bugfixes
Selftests:
- Fix an annoying goof where the NX hugepage test prints out garbage
instead of the magic token needed to run the test.
- Fix build errors when a header is delete/moved due to a missing flag
in the Makefile.
- Detect if KVM bugged/killed a selftest's VM and print out a helpful
message instead of complaining that a random ioctl() failed.
- Annotate the guest printf/assert helpers with __printf(), and fix the
various bugs that were lurking due to lack of said annotation.
There are two non-KVM patches buried in the middle of guest_memfd support:
fs: Rename anon_inode_getfile_secure() and anon_inode_getfd_secure()
mm: Add AS_UNMOVABLE to mark mapping as completely unmovable
The first is small and mostly suggested-by Christian Brauner; the second
a bit less so but it was written by an mm person (Vlastimil Babka).
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm updates from Paolo Bonzini:
"Generic:
- Use memdup_array_user() to harden against overflow.
- Unconditionally advertise KVM_CAP_DEVICE_CTRL for all
architectures.
- Clean up Kconfigs that all KVM architectures were selecting
- New functionality around "guest_memfd", a new userspace API that
creates an anonymous file and returns a file descriptor that refers
to it. guest_memfd files are bound to their owning virtual machine,
cannot be mapped, read, or written by userspace, and cannot be
resized. guest_memfd files do however support PUNCH_HOLE, which can
be used to switch a memory area between guest_memfd and regular
anonymous memory.
- New ioctl KVM_SET_MEMORY_ATTRIBUTES allowing userspace to specify
per-page attributes for a given page of guest memory; right now the
only attribute is whether the guest expects to access memory via
guest_memfd or not, which in Confidential SVMs backed by SEV-SNP,
TDX or ARM64 pKVM is checked by firmware or hypervisor that
guarantees confidentiality (AMD PSP, Intel TDX module, or EL2 in
the case of pKVM).
x86:
- Support for "software-protected VMs" that can use the new
guest_memfd and page attributes infrastructure. This is mostly
useful for testing, since there is no pKVM-like infrastructure to
provide a meaningfully reduced TCB.
- Fix a relatively benign off-by-one error when splitting huge pages
during CLEAR_DIRTY_LOG.
- Fix a bug where KVM could incorrectly test-and-clear dirty bits in
non-leaf TDP MMU SPTEs if a racing thread replaces a huge SPTE with
a non-huge SPTE.
- Use more generic lockdep assertions in paths that don't actually
care about whether the caller is a reader or a writer.
- let Xen guests opt out of having PV clock reported as "based on a
stable TSC", because some of them don't expect the "TSC stable" bit
(added to the pvclock ABI by KVM, but never set by Xen) to be set.
- Revert a bogus, made-up nested SVM consistency check for
TLB_CONTROL.
- Advertise flush-by-ASID support for nSVM unconditionally, as KVM
always flushes on nested transitions, i.e. always satisfies flush
requests. This allows running bleeding edge versions of VMware
Workstation on top of KVM.
- Sanity check that the CPU supports flush-by-ASID when enabling SEV
support.
- On AMD machines with vNMI, always rely on hardware instead of
intercepting IRET in some cases to detect unmasking of NMIs
- Support for virtualizing Linear Address Masking (LAM)
- Fix a variety of vPMU bugs where KVM fail to stop/reset counters
and other state prior to refreshing the vPMU model.
- Fix a double-overflow PMU bug by tracking emulated counter events
using a dedicated field instead of snapshotting the "previous"
counter. If the hardware PMC count triggers overflow that is
recognized in the same VM-Exit that KVM manually bumps an event
count, KVM would pend PMIs for both the hardware-triggered overflow
and for KVM-triggered overflow.
- Turn off KVM_WERROR by default for all configs so that it's not
inadvertantly enabled by non-KVM developers, which can be
problematic for subsystems that require no regressions for W=1
builds.
- Advertise all of the host-supported CPUID bits that enumerate
IA32_SPEC_CTRL "features".
- Don't force a masterclock update when a vCPU synchronizes to the
current TSC generation, as updating the masterclock can cause
kvmclock's time to "jump" unexpectedly, e.g. when userspace
hotplugs a pre-created vCPU.
- Use RIP-relative address to read kvm_rebooting in the VM-Enter
fault paths, partly as a super minor optimization, but mostly to
make KVM play nice with position independent executable builds.
- Guard KVM-on-HyperV's range-based TLB flush hooks with an #ifdef on
CONFIG_HYPERV as a minor optimization, and to self-document the
code.
- Add CONFIG_KVM_HYPERV to allow disabling KVM support for HyperV
"emulation" at build time.
ARM64:
- LPA2 support, adding 52bit IPA/PA capability for 4kB and 16kB base
granule sizes. Branch shared with the arm64 tree.
- Large Fine-Grained Trap rework, bringing some sanity to the
feature, although there is more to come. This comes with a prefix
branch shared with the arm64 tree.
- Some additional Nested Virtualization groundwork, mostly
introducing the NV2 VNCR support and retargetting the NV support to
that version of the architecture.
- A small set of vgic fixes and associated cleanups.
Loongarch:
- Optimization for memslot hugepage checking
- Cleanup and fix some HW/SW timer issues
- Add LSX/LASX (128bit/256bit SIMD) support
RISC-V:
- KVM_GET_REG_LIST improvement for vector registers
- Generate ISA extension reg_list using macros in get-reg-list
selftest
- Support for reporting steal time along with selftest
s390:
- Bugfixes
Selftests:
- Fix an annoying goof where the NX hugepage test prints out garbage
instead of the magic token needed to run the test.
- Fix build errors when a header is delete/moved due to a missing
flag in the Makefile.
- Detect if KVM bugged/killed a selftest's VM and print out a helpful
message instead of complaining that a random ioctl() failed.
- Annotate the guest printf/assert helpers with __printf(), and fix
the various bugs that were lurking due to lack of said annotation"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (185 commits)
x86/kvm: Do not try to disable kvmclock if it was not enabled
KVM: x86: add missing "depends on KVM"
KVM: fix direction of dependency on MMU notifiers
KVM: introduce CONFIG_KVM_COMMON
KVM: arm64: Add missing memory barriers when switching to pKVM's hyp pgd
KVM: arm64: vgic-its: Avoid potential UAF in LPI translation cache
RISC-V: KVM: selftests: Add get-reg-list test for STA registers
RISC-V: KVM: selftests: Add steal_time test support
RISC-V: KVM: selftests: Add guest_sbi_probe_extension
RISC-V: KVM: selftests: Move sbi_ecall to processor.c
RISC-V: KVM: Implement SBI STA extension
RISC-V: KVM: Add support for SBI STA registers
RISC-V: KVM: Add support for SBI extension registers
RISC-V: KVM: Add SBI STA info to vcpu_arch
RISC-V: KVM: Add steal-update vcpu request
RISC-V: KVM: Add SBI STA extension skeleton
RISC-V: paravirt: Implement steal-time support
RISC-V: Add SBI STA extension definitions
RISC-V: paravirt: Add skeleton for pv-time support
RISC-V: KVM: Fix indentation in kvm_riscv_vcpu_set_reg_csr()
...
* Support for many new extensions in hwprobe, along with a handful of
cleanups.
* Various cleanups to our page table handling code, so we alwayse use
{READ,WRITE}_ONCE.
* Support for the which-cpus flavor of hwprobe.
* Support for XIP kernels has been resurrected.
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Merge tag 'riscv-for-linus-6.8-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V updates from Palmer Dabbelt:
- Support for many new extensions in hwprobe, along with a handful of
cleanups
- Various cleanups to our page table handling code, so we alwayse use
{READ,WRITE}_ONCE
- Support for the which-cpus flavor of hwprobe
- Support for XIP kernels has been resurrected
* tag 'riscv-for-linus-6.8-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (52 commits)
riscv: hwprobe: export Zicond extension
riscv: hwprobe: export Zacas ISA extension
riscv: add ISA extension parsing for Zacas
dt-bindings: riscv: add Zacas ISA extension description
riscv: hwprobe: export Ztso ISA extension
riscv: add ISA extension parsing for Ztso
use linux/export.h rather than asm-generic/export.h
riscv: Remove SHADOW_OVERFLOW_STACK_SIZE macro
riscv; fix __user annotation in save_v_state()
riscv: fix __user annotation in traps_misaligned.c
riscv: Select ARCH_WANTS_NO_INSTR
riscv: Remove obsolete rv32_defconfig file
riscv: Allow disabling of BUILTIN_DTB for XIP
riscv: Fixed wrong register in XIP_FIXUP_FLASH_OFFSET macro
riscv: Make XIP bootable again
riscv: Fix set_direct_map_default_noflush() to reset _PAGE_EXEC
riscv: Fix module_alloc() that did not reset the linear mapping permissions
riscv: Fix wrong usage of lm_alias() when splitting a huge linear mapping
riscv: Check if the code to patch lies in the exit section
riscv: Use the same CPU operations for all CPUs
...
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Merge tag 'mm-hotfixes-stable-2024-01-12-16-52' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc hotfixes from Andrew Morton:
"For once not mostly MM-related.
17 hotfixes. 10 address post-6.7 issues and the other 7 are cc:stable"
* tag 'mm-hotfixes-stable-2024-01-12-16-52' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
userfaultfd: avoid huge_zero_page in UFFDIO_MOVE
MAINTAINERS: add entry for shrinker
selftests: mm: hugepage-vmemmap fails on 64K page size systems
mm/memory_hotplug: fix memmap_on_memory sysfs value retrieval
mailmap: switch email for Tanzir Hasan
mailmap: add old address mappings for Randy
kernel/crash_core.c: make __crash_hotplug_lock static
efi: disable mirror feature during crashkernel
kexec: do syscore_shutdown() in kernel_kexec
mailmap: update entry for Manivannan Sadhasivam
fs/proc/task_mmu: move mmu notification mechanism inside mm lock
mm: zswap: switch maintainers to recently active developers and reviewers
scripts/decode_stacktrace.sh: optionally use LLVM utilities
kasan: avoid resetting aux_lock
lib/Kconfig.debug: disable CONFIG_DEBUG_INFO_BTF for Hexagon
MAINTAINERS: update LTP maintainers
kdump: defer the insertion of crashkernel resources
This is a follow-up of commit a159cbe81d ("selftests: rtnetlink: check
enslaving iface in a bond") after the merge of net-next into net.
The goal is to follow the new convention,
see commit d3b6b11161 ("selftests/net: convert rtnetlink.sh to run it in
unique namespace") for more details.
Let's use also the generic dummy name instead of defining a new one.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://lore.kernel.org/r/20240115135922.3662648-1-nicolas.dichtel@6wind.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add a test case for PTR_TO_FLOW_KEYS alu. Testing if alu with variable
offset on flow_keys is rejected. For the fixed offset success case, we
already have C code coverage to verify (e.g. via bpf_flow.c).
Signed-off-by: Hao Sun <sunhao.th@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/bpf/20240115082028.9992-2-sunhao.th@gmail.com
bonding tests also try to create bridge, veth and dummy
interfaces. These are not currently listed in config.
Fixes: bbb774d921 ("net: Add tests for bonding and team address list management")
Fixes: c078290a2b ("selftests: include bonding tests into the kselftest infra")
Acked-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Link: https://lore.kernel.org/r/20240116020201.1883023-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Number of tests are failing when netdev renaming is active
on the system. Add udevadm settle in logic determining
the names.
Fixes: 242aaf03dc ("selftests: add a test for ethtool pause stats")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240114224726.1210532-1-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
The lib.sh script is meant to be sourced from other scripts, not executed
directly. Therefore, remove the executable bits from lib.sh's permissions.
Fixes: fe32dffdcd ("selftests: forwarding: add TCPDUMP_EXTRA_FLAGS to lib.sh")
Tested-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Benjamin Poirier <bpoirier@nvidia.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
The tests changed by this patch, as well as the scripts they source, use
features which are not part of POSIX sh (ex. 'source' and 'local'). As a
result, these tests fail when /bin/sh is dash such as on Debian. Change the
interpreter to bash so that these tests can run successfully.
Fixes: d43eff0b85 ("selftests: bonding: up/down delay w/ slave link flapping")
Tested-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Benjamin Poirier <bpoirier@nvidia.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
syzbot found an error with how splice() is handled with a msg greater
than 32. This was fixed in previous patch, but lets add a test for
it to ensure it continues to work.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The patch adds a test to exercise the bpf_iter_udp batching
logic. It specifically tests the case that there are multiple
so_reuseport udp_sk in a bucket of the udp_table.
The test creates two sets of so_reuseport sockets and
each set on a different port. Meaning there will be
two buckets in the udp_table.
The test does the following:
1. read() 3 out of 4 sockets in the first bucket.
2. close() all sockets in the first bucket. This
will ensure the current bucket's offset in
the kernel does not affect the read() of the
following bucket.
3. read() all 4 sockets in the second bucket.
The test also reads one udp_sk at a time from
the bpf_iter_udp prog. The true case in
"do_test(..., bool onebyone)". This is the buggy case
that the previous patch fixed.
It also tests the "false" case in "do_test(..., bool onebyone)",
meaning the userspace reads the whole bucket. There is
no bug in this case but adding this test also while
at it.
Considering the way to have multiple tcp_sk in the same
bucket is similar (by using so_reuseport),
this patch also tests the bpf_iter_tcp even though the
bpf_iter_tcp batching logic works correctly.
Both IP v4 and v6 are exercising the same bpf_iter batching
code path, so only v6 is tested.
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://lore.kernel.org/r/20240112190530.3751661-4-martin.lau@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This pull request contains the following branches:
doc.2023.12.13a: Documentation and comment updates.
torture.2023.11.23a: RCU torture, locktorture updates that include
cleanups; nolibc init build support for mips, ppc and rv64;
testing of mid stall duration scenario and fixing fqs task
creation conditions.
fixes.2023.12.13a: Misc fixes, most notably restricting usage of
RCU CPU stall notifiers, to confine their usage primarily
to debug kernels.
rcu-tasks.2023.12.12b: RCU tasks minor fixes.
srcu.2023.12.13a: lockdep annotation fix for NMI-safe accesses,
callback advancing/acceleration cleanup and documentation
improvements.
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Merge tag 'rcu.release.v6.8' of https://github.com/neeraju/linux
Pull RCU updates from Neeraj Upadhyay:
- Documentation and comment updates
- RCU torture, locktorture updates that include cleanups; nolibc init
build support for mips, ppc and rv64; testing of mid stall duration
scenario and fixing fqs task creation conditions
- Misc fixes, most notably restricting usage of RCU CPU stall
notifiers, to confine their usage primarily to debug kernels
- RCU tasks minor fixes
- lockdep annotation fix for NMI-safe accesses, callback
advancing/acceleration cleanup and documentation improvements
* tag 'rcu.release.v6.8' of https://github.com/neeraju/linux:
rcu: Force quiescent states only for ongoing grace period
doc: Clarify historical disclaimers in memory-barriers.txt
doc: Mention address and data dependencies in rcu_dereference.rst
doc: Clarify RCU Tasks reader/updater checklist
rculist.h: docs: Fix wrong function summary
Documentation: RCU: Remove repeated word in comments
srcu: Use try-lock lockdep annotation for NMI-safe access.
srcu: Explain why callbacks invocations can't run concurrently
srcu: No need to advance/accelerate if no callback enqueued
srcu: Remove superfluous callbacks advancing from srcu_gp_start()
rcu: Remove unused macros from rcupdate.h
rcu: Restrict access to RCU CPU stall notifiers
rcu-tasks: Mark RCU Tasks accesses to current->rcu_tasks_idle_cpu
rcutorture: Add fqs_holdoff check before fqs_task is created
rcutorture: Add mid-sized stall to TREE07
rcutorture: add nolibc init support for mips, ppc and rv64
locktorture: Increase Hamming distance between call_rcu_chain and rcu_call_chains
The kernel sefltest mm/hugepage-vmemmap fails on architectures which has
different page size other than 4K. In hugepage-vmemmap page size used is
4k so the pfn calculation will go wrong on systems which has different
page size .The length of MAP_HUGETLB memory must be hugepage aligned but
in hugepage-vmemmap map length is 2M so this will not get aligned if the
system has differnet hugepage size.
Added psize() to get the page size and default_huge_page_size() to
get the default hugepage size at run time, hugepage-vmemmap test pass
on powerpc with 64K page size and x86 with 4K page size.
Result on powerpc without patch (page size 64K)
*# ./hugepage-vmemmap
Returned address is 0x7effff000000 whose pfn is 0
Head page flags (100000000) is invalid
check_page_flags: Invalid argument
*#
Result on powerpc with patch (page size 64K)
*# ./hugepage-vmemmap
Returned address is 0x7effff000000 whose pfn is 600
*#
Result on x86 with patch (page size 4K)
*# ./hugepage-vmemmap
Returned address is 0x7fc7c2c00000 whose pfn is 1dac00
*#
Link: https://lkml.kernel.org/r/3b3a3ae37ba21218481c482a872bbf7526031600.1704865754.git.donettom@linux.vnet.ibm.com
Fixes: b147c89cd4 ("selftests: vm: add a hugetlb test case")
Signed-off-by: Donet Tom <donettom@linux.vnet.ibm.com>
Reported-by: Geetika Moolchandani <geetika@linux.ibm.com>
Tested-by: Geetika Moolchandani <geetika@linux.ibm.com>
Acked-by: Muchun Song <muchun.song@linux.dev>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Merge tag 'hid-for-linus-2024010801' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID updates from Jiri Kosina:
- assorted functional fixes for hid-steam ported from SteamOS betas
(Vicki Pfau)
- fix for custom sensor-hub sensors (hinge angle sensor and LISS
sensors) not working (Yauhen Kharuzhy)
- functional fix for handling Confidence in Wacom driver (Jason
Gerecke)
- support for Ilitek ili2901 touchscreen (Zhengqiao Xia)
- power management fix for Wacom userspace battery exporting
(Tatsunosuke Tobita)
- rework of wait-for-reset in order to reduce the need for
I2C_HID_QUIRK_NO_IRQ_AFTER_RESET qurk; the success rate is now 50%
better, but there are still further improvements to be made (Hans de
Goede)
- greatly improved coverage of Tablets in hid-selftests (Benjamin
Tissoires)
- support for Nintendo NSO controllers -- SNES, Genesis and N64 (Ryan
McClelland)
- support for controlling mcp2200 GPIOs (Johannes Roith)
- power management improvement for EHL OOB wakeup in intel-ish
(Kai-Heng Feng)
- other assorted device-specific fixes and code cleanups
* tag 'hid-for-linus-2024010801' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (53 commits)
HID: amd_sfh: Add a new interface for exporting ALS data
HID: amd_sfh: Add a new interface for exporting HPD data
HID: amd_sfh: rename float_to_int() to amd_sfh_float_to_int()
HID: i2c-hid: elan: Add ili2901 timing
dt-bindings: HID: i2c-hid: elan: Introduce Ilitek ili2901
HID: bpf: make bus_type const in struct hid_bpf_ops
HID: make ishtp_cl_bus_type const
HID: make hid_bus_type const
HID: hid-steam: Add gamepad-only mode switched to by holding options
HID: hid-steam: Better handling of serial number length
HID: hid-steam: Update list of identifiers from SDL
HID: hid-steam: Make client_opened a counter
HID: hid-steam: Clean up locking
HID: hid-steam: Disable watchdog instead of using a heartbeat
HID: hid-steam: Avoid overwriting smoothing parameter
HID: magicmouse: fix kerneldoc for struct magicmouse_sc
HID: sensor-hub: Enable hid core report processing for all devices
HID: wacom: Add additional tests of confidence behavior
HID: wacom: Correct behavior when processing some confidence == false touches
HID: nintendo: add support for nso controllers
...
It was a clam development cycle. There were an ALSA core extension
for subformat PCM bits and a few ASoC core changes to support N:M
mappings, while the most of remaining changes are driver-specific.
Core:
- API extensions for properly limiting PCM format bits via subformat
- Enhanced support for N:M CPU:CODEC mappings in the core and in
audio-graph-card2
ASoC:
- Lots of SOF updates: fallback support to older IPC versions,
notification on control changes with IPC4.
Also supports for ACPI parse for the ES83xx driver that reduces
quirks.
- Device tree support for describing parts of the card which can be
active over suspend (for very low power playback or wake word use
cases)
- Support for more AMD and Intel systems, NXP i.MX8m MICFIL, Qualcomm
SM8250, SM8550, SM8650 and X1E80100
- Drop of Freescale MPC8610 code that is no longer supported
HD-audio:
- More CS35L41 codec extensions for Dell, HP and Lenovo models
- TAS2781 codec extensions for Lenovo and co
- New PCM subformat supports
Others:
- More enhancement for Scarlett2 USB mixer support
- Various kselftest fixes
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Merge tag 'sound-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"It was a calm development cycle. There were an ALSA core extension for
subformat PCM bits and a few ASoC core changes to support N:M
mappings, while the most of remaining changes are driver-specific.
Core:
- API extensions for properly limiting PCM format bits via subformat
- Enhanced support for N:M CPU:CODEC mappings in the core and in
audio-graph-card2
ASoC:
- Lots of SOF updates: fallback support to older IPC versions,
notification on control changes with IPC4. Also supports for ACPI
parse for the ES83xx driver that reduces quirks.
- Device tree support for describing parts of the card which can be
active over suspend (for very low power playback or wake word use
cases)
- Support for more AMD and Intel systems, NXP i.MX8m MICFIL, Qualcomm
SM8250, SM8550, SM8650 and X1E80100
- Drop of Freescale MPC8610 code that is no longer supported
HD-audio:
- More CS35L41 codec extensions for Dell, HP and Lenovo models
- TAS2781 codec extensions for Lenovo and co
- New PCM subformat supports
Others:
- More enhancement for Scarlett2 USB mixer support
- Various kselftest fixes"
* tag 'sound-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (337 commits)
kselftest/alsa - conf: Stringify the printed errno in sysfs_get()
kselftest/alsa - mixer-test: Fix the print format specifier warning
kselftest/alsa - mixer-test: Fix the print format specifier warning
kselftest/alsa - mixer-test: fix the number of parameters to ksft_exit_fail_msg()
ALSA: hda/tas2781: annotate calibration data endianness
ALSA: hda/realtek: Fix mute and mic-mute LEDs for HP Envy X360 13-ay0xxx
ALSA: hda/conexant: Fix headset auto detect fail in cx8070 and SN6140
ALSA: ac97: fix build regression
ALSA: hda: cs35l41: Support more HP models without _DSD
ALSA: hda/tas2781: add fixup for Lenovo 14ARB7
ALSA: hda/tas2781: add TAS2563 support for 14ARB7
ALSA: hda/tas2781: add configurable global i2c address
ALSA: hda/tas2781: add ptrs to calibration functions
ALSA: hda: Add driver properties for cs35l41 for Lenovo Legion Slim 7 Gen 8 serie
ALSA: hda/realtek: enable SND_PCI_QUIRK for Lenovo Legion Slim 7 Gen 8 (2023) serie
ALSA: hda/tas2781: configure the amp after firmware load
ALSA: mark all struct bus_type as const
ASoC: pxa: sspa: Don't select SND_ARM
ASoC: rt5663: cancel the work when system suspends
ALSA: scarlett2: Add PCM Input Switch for Solo Gen 4
...
The goal is to check the following two sequences:
> ip link set dummy0 up
> ip link set dummy0 master bond0 down
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20240108094103.2001224-3-nicolas.dichtel@6wind.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The rules to link selftests are:
> $(OUTPUT)/%_ipv4: %.c
> $(LINK.c) $^ $(LDLIBS) -o $@
>
> $(OUTPUT)/%_ipv6: %.c
> $(LINK.c) -DIPV6_TEST $^ $(LDLIBS) -o $@
The intel test robot uses only selftest's Makefile, not the top linux
Makefile:
> make W=1 O=/tmp/kselftest -C tools/testing/selftests
So, $(LINK.c) is determined by environment, rather than by kernel
Makefiles. On my machine (as well as other people that ran tcp-ao
selftests) GNU/Make implicit definition does use $(LDFLAGS):
> [dima@Mindolluin ~]$ make -p -f/dev/null | grep '^LINK.c\>'
> make: *** No targets. Stop.
> LINK.c = $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
But, according to build robot report, it's not the case for them.
While I could just avoid using pre-defined $(LINK.c), it's also used by
selftests/lib.mk by default.
Anyways, according to GNU/Make documentation [1], I should have used
$(LDLIBS) instead of $(LDFLAGS) in the first place, so let's just do it:
> LDFLAGS
> Extra flags to give to compilers when they are supposed to invoke
> the linker, ‘ld’, such as -L. Libraries (-lfoo) should be added
> to the LDLIBS variable instead.
> LDLIBS
> Library flags or names given to compilers when they are supposed
> to invoke the linker, ‘ld’. LOADLIBES is a deprecated (but still
> supported) alternative to LDLIBS. Non-library linker flags, such
> as -L, should go in the LDFLAGS variable.
[1]: https://www.gnu.org/software/make/manual/html_node/Implicit-Variables.html
Fixes: cfbab37b3d ("selftests/net: Add TCP-AO library")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202401011151.veyYTJzq-lkp@intel.com/
Signed-off-by: Dmitry Safonov <dima@arista.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Link: https://lore.kernel.org/r/20240110-tcp_ao-selftests-makefile-v1-1-aa07d043f052@arista.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Core & protocols
----------------
- Analyze and reorganize core networking structs (socks, netdev,
netns, mibs) to optimize cacheline consumption and set up
build time warnings to safeguard against future header changes.
This improves TCP performances with many concurrent connections
up to 40%.
- Add page-pool netlink-based introspection, exposing the
memory usage and recycling stats. This helps indentify
bad PP users and possible leaks.
- Refine TCP/DCCP source port selection to no longer favor even
source port at connect() time when IP_LOCAL_PORT_RANGE is set.
This lowers the time taken by connect() for hosts having
many active connections to the same destination.
- Refactor the TCP bind conflict code, shrinking related socket
structs.
- Refactor TCP SYN-Cookie handling, as a preparation step to
allow arbitrary SYN-Cookie processing via eBPF.
- Tune optmem_max for 0-copy usage, increasing the default value
to 128KB and namespecifying it.
- Allow coalescing for cloned skbs coming from page pools, improving
RX performances with some common configurations.
- Reduce extension header parsing overhead at GRO time.
- Add bridge MDB bulk deletion support, allowing user-space to
request the deletion of matching entries.
- Reorder nftables struct members, to keep data accessed by the
datapath first.
- Introduce TC block ports tracking and use. This allows supporting
multicast-like behavior at the TC layer.
- Remove UAPI support for retired TC qdiscs (dsmark, CBQ and ATM) and
classifiers (RSVP and tcindex).
- More data-race annotations.
- Extend the diag interface to dump TCP bound-only sockets.
- Conditional notification of events for TC qdisc class and actions.
- Support for WPAN dynamic associations with nearby devices, to form
a sub-network using a specific PAN ID.
- Implement SMCv2.1 virtual ISM device support.
- Add support for Batman-avd mulicast packet type.
BPF
---
- Tons of verifier improvements:
- BPF register bounds logic and range support along with a large
test suite
- log improvements
- complete precision tracking support for register spills
- track aligned STACK_ZERO cases as imprecise spilled registers. It
improves the verifier "instructions processed" metric from single
digit to 50-60% for some programs
- support for user's global BPF subprogram arguments with few
commonly requested annotations for a better developer experience
- support tracking of BPF_JNE which helps cases when the compiler
transforms (unsigned) "a > 0" into "if a == 0 goto xxx" and the
like
- several fixes
- Add initial TX metadata implementation for AF_XDP with support in
mlx5 and stmmac drivers. Two types of offloads are supported right
now, that is, TX timestamp and TX checksum offload.
- Fix kCFI bugs in BPF all forms of indirect calls from BPF into
kernel and from kernel into BPF work with CFI enabled. This allows
BPF to work with CONFIG_FINEIBT=y.
- Change BPF verifier logic to validate global subprograms lazily
instead of unconditionally before the main program, so they can be
guarded using BPF CO-RE techniques.
- Support uid/gid options when mounting bpffs.
- Add a new kfunc which acquires the associated cgroup of a task
within a specific cgroup v1 hierarchy where the latter is identified
by its id.
- Extend verifier to allow bpf_refcount_acquire() of a map value field
obtained via direct load which is a use-case needed in sched_ext.
- Add BPF link_info support for uprobe multi link along with bpftool
integration for the latter.
- Support for VLAN tag in XDP hints.
- Remove deprecated bpfilter kernel leftovers given the project
is developed in user-space (https://github.com/facebook/bpfilter).
Misc
----
- Support for parellel TC self-tests execution.
- Increase MPTCP self-tests coverage.
- Updated the bridge documentation, including several so-far
undocumented features.
- Convert all the net self-tests to run in unique netns, to
avoid random failures due to conflict and allow concurrent
runs.
- Add TCP-AO self-tests.
- Add kunit tests for both cfg80211 and mac80211.
- Autogenerate Netlink families documentation from YAML spec.
- Add yml-gen support for fixed headers and recursive nests, the
tool can now generate user-space code for all genetlink families
for which we have specs.
- A bunch of additional module descriptions fixes.
- Catch incorrect freeing of pages belonging to a page pool.
Driver API
----------
- Rust abstractions for network PHY drivers; do not cover yet the
full C API, but already allow implementing functional PHY drivers
in rust.
- Introduce queue and NAPI support in the netdev Netlink interface,
allowing complete access to the device <> NAPIs <> queues
relationship.
- Introduce notifications filtering for devlink to allow control
application scale to thousands of instances.
- Improve PHY validation, requesting rate matching information for
each ethtool link mode supported by both the PHY and host.
- Add support for ethtool symmetric-xor RSS hash.
- ACPI based Wifi band RFI (WBRF) mitigation feature for the AMD
platform.
- Expose pin fractional frequency offset value over new DPLL generic
netlink attribute.
- Convert older drivers to platform remove callback returning void.
- Add support for PHY package MMD read/write.
New hardware / drivers
----------------------
- Ethernet:
- Octeon CN10K devices
- Broadcom 5760X P7
- Qualcomm SM8550 SoC
- Texas Instrument DP83TG720S PHY
- Bluetooth:
- IMC Networks Bluetooth radio
Removed
-------
- WiFi:
- libertas 16-bit PCMCIA support
- Atmel at76c50x drivers
- HostAP ISA/PCMCIA style 802.11b driver
- zd1201 802.11b USB dongles
- Orinoco ISA/PCMCIA 802.11b driver
- Aviator/Raytheon driver
- Planet WL3501 driver
- RNDIS USB 802.11b driver
Drivers
-------
- Ethernet high-speed NICs:
- Intel (100G, ice, idpf):
- allow one by one port representors creation and removal
- add temperature and clock information reporting
- add get/set for ethtool's header split ringparam
- add again FW logging
- adds support switchdev hardware packet mirroring
- iavf: implement symmetric-xor RSS hash
- igc: add support for concurrent physical and free-running timers
- i40e: increase the allowable descriptors
- nVidia/Mellanox:
- Preparation for Socket-Direct multi-dev netdev. That will allow
in future releases combining multiple PFs devices attached to
different NUMA nodes under the same netdev
- Broadcom (bnxt):
- TX completion handling improvements
- add basic ntuple filter support
- reduce MSIX vectors usage for MQPRIO offload
- add VXLAN support, USO offload and TX coalesce completion for P7
- Marvell Octeon EP:
- xmit-more support
- add PF-VF mailbox support and use it for FW notifications for VFs
- Wangxun (ngbe/txgbe):
- implement ethtool functions to operate pause param, ring param,
coalesce channel number and msglevel
- Netronome/Corigine (nfp):
- add flow-steering support
- support UDP segmentation offload
- Ethernet NICs embedded, slower, virtual:
- Xilinx AXI: remove duplicate DMA code adopting the dma engine driver
- stmmac: add support for HW-accelerated VLAN stripping
- TI AM654x sw: add mqprio, frame preemption & coalescing
- gve: add support for non-4k page sizes.
- virtio-net: support dynamic coalescing moderation
- nVidia/Mellanox Ethernet datacenter switches:
- allow firmware upgrade without a reboot
- more flexible support for bridge flooding via the compressed
FID flooding mode
- Ethernet embedded switches:
- Microchip:
- fine-tune flow control and speed configurations in KSZ8xxx
- KSZ88X3: enable setting rmii reference
- Renesas:
- add jumbo frames support
- Marvell:
- 88E6xxx: add "eth-mac" and "rmon" stats support
- Ethernet PHYs:
- aquantia: add firmware load support
- at803x: refactor the driver to simplify adding support for more
chip variants
- NXP C45 TJA11xx: Add MACsec offload support
- Wifi:
- MediaTek (mt76):
- NVMEM EEPROM improvements
- mt7996 Extremely High Throughput (EHT) improvements
- mt7996 Wireless Ethernet Dispatcher (WED) support
- mt7996 36-bit DMA support
- Qualcomm (ath12k):
- support for a single MSI vector
- WCN7850: support AP mode
- Intel (iwlwifi):
- new debugfs file fw_dbg_clear
- allow concurrent P2P operation on DFS channels
- Bluetooth:
- QCA2066: support HFP offload
- ISO: more broadcast-related improvements
- NXP: better recovery in case receiver/transmitter get out of sync
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-next-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Paolo Abeni:
"The most interesting thing is probably the networking structs
reorganization and a significant amount of changes is around
self-tests.
Core & protocols:
- Analyze and reorganize core networking structs (socks, netdev,
netns, mibs) to optimize cacheline consumption and set up build
time warnings to safeguard against future header changes
This improves TCP performances with many concurrent connections up
to 40%
- Add page-pool netlink-based introspection, exposing the memory
usage and recycling stats. This helps indentify bad PP users and
possible leaks
- Refine TCP/DCCP source port selection to no longer favor even
source port at connect() time when IP_LOCAL_PORT_RANGE is set. This
lowers the time taken by connect() for hosts having many active
connections to the same destination
- Refactor the TCP bind conflict code, shrinking related socket
structs
- Refactor TCP SYN-Cookie handling, as a preparation step to allow
arbitrary SYN-Cookie processing via eBPF
- Tune optmem_max for 0-copy usage, increasing the default value to
128KB and namespecifying it
- Allow coalescing for cloned skbs coming from page pools, improving
RX performances with some common configurations
- Reduce extension header parsing overhead at GRO time
- Add bridge MDB bulk deletion support, allowing user-space to
request the deletion of matching entries
- Reorder nftables struct members, to keep data accessed by the
datapath first
- Introduce TC block ports tracking and use. This allows supporting
multicast-like behavior at the TC layer
- Remove UAPI support for retired TC qdiscs (dsmark, CBQ and ATM) and
classifiers (RSVP and tcindex)
- More data-race annotations
- Extend the diag interface to dump TCP bound-only sockets
- Conditional notification of events for TC qdisc class and actions
- Support for WPAN dynamic associations with nearby devices, to form
a sub-network using a specific PAN ID
- Implement SMCv2.1 virtual ISM device support
- Add support for Batman-avd mulicast packet type
BPF:
- Tons of verifier improvements:
- BPF register bounds logic and range support along with a large
test suite
- log improvements
- complete precision tracking support for register spills
- track aligned STACK_ZERO cases as imprecise spilled registers.
This improves the verifier "instructions processed" metric from
single digit to 50-60% for some programs
- support for user's global BPF subprogram arguments with few
commonly requested annotations for a better developer
experience
- support tracking of BPF_JNE which helps cases when the compiler
transforms (unsigned) "a > 0" into "if a == 0 goto xxx" and the
like
- several fixes
- Add initial TX metadata implementation for AF_XDP with support in
mlx5 and stmmac drivers. Two types of offloads are supported right
now, that is, TX timestamp and TX checksum offload
- Fix kCFI bugs in BPF all forms of indirect calls from BPF into
kernel and from kernel into BPF work with CFI enabled. This allows
BPF to work with CONFIG_FINEIBT=y
- Change BPF verifier logic to validate global subprograms lazily
instead of unconditionally before the main program, so they can be
guarded using BPF CO-RE techniques
- Support uid/gid options when mounting bpffs
- Add a new kfunc which acquires the associated cgroup of a task
within a specific cgroup v1 hierarchy where the latter is
identified by its id
- Extend verifier to allow bpf_refcount_acquire() of a map value
field obtained via direct load which is a use-case needed in
sched_ext
- Add BPF link_info support for uprobe multi link along with bpftool
integration for the latter
- Support for VLAN tag in XDP hints
- Remove deprecated bpfilter kernel leftovers given the project is
developed in user-space (https://github.com/facebook/bpfilter)
Misc:
- Support for parellel TC self-tests execution
- Increase MPTCP self-tests coverage
- Updated the bridge documentation, including several so-far
undocumented features
- Convert all the net self-tests to run in unique netns, to avoid
random failures due to conflict and allow concurrent runs
- Add TCP-AO self-tests
- Add kunit tests for both cfg80211 and mac80211
- Autogenerate Netlink families documentation from YAML spec
- Add yml-gen support for fixed headers and recursive nests, the tool
can now generate user-space code for all genetlink families for
which we have specs
- A bunch of additional module descriptions fixes
- Catch incorrect freeing of pages belonging to a page pool
Driver API:
- Rust abstractions for network PHY drivers; do not cover yet the
full C API, but already allow implementing functional PHY drivers
in rust
- Introduce queue and NAPI support in the netdev Netlink interface,
allowing complete access to the device <> NAPIs <> queues
relationship
- Introduce notifications filtering for devlink to allow control
application scale to thousands of instances
- Improve PHY validation, requesting rate matching information for
each ethtool link mode supported by both the PHY and host
- Add support for ethtool symmetric-xor RSS hash
- ACPI based Wifi band RFI (WBRF) mitigation feature for the AMD
platform
- Expose pin fractional frequency offset value over new DPLL generic
netlink attribute
- Convert older drivers to platform remove callback returning void
- Add support for PHY package MMD read/write
New hardware / drivers:
- Ethernet:
- Octeon CN10K devices
- Broadcom 5760X P7
- Qualcomm SM8550 SoC
- Texas Instrument DP83TG720S PHY
- Bluetooth:
- IMC Networks Bluetooth radio
Removed:
- WiFi:
- libertas 16-bit PCMCIA support
- Atmel at76c50x drivers
- HostAP ISA/PCMCIA style 802.11b driver
- zd1201 802.11b USB dongles
- Orinoco ISA/PCMCIA 802.11b driver
- Aviator/Raytheon driver
- Planet WL3501 driver
- RNDIS USB 802.11b driver
Driver updates:
- Ethernet high-speed NICs:
- Intel (100G, ice, idpf):
- allow one by one port representors creation and removal
- add temperature and clock information reporting
- add get/set for ethtool's header split ringparam
- add again FW logging
- adds support switchdev hardware packet mirroring
- iavf: implement symmetric-xor RSS hash
- igc: add support for concurrent physical and free-running
timers
- i40e: increase the allowable descriptors
- nVidia/Mellanox:
- Preparation for Socket-Direct multi-dev netdev. That will
allow in future releases combining multiple PFs devices
attached to different NUMA nodes under the same netdev
- Broadcom (bnxt):
- TX completion handling improvements
- add basic ntuple filter support
- reduce MSIX vectors usage for MQPRIO offload
- add VXLAN support, USO offload and TX coalesce completion
for P7
- Marvell Octeon EP:
- xmit-more support
- add PF-VF mailbox support and use it for FW notifications
for VFs
- Wangxun (ngbe/txgbe):
- implement ethtool functions to operate pause param, ring
param, coalesce channel number and msglevel
- Netronome/Corigine (nfp):
- add flow-steering support
- support UDP segmentation offload
- Ethernet NICs embedded, slower, virtual:
- Xilinx AXI: remove duplicate DMA code adopting the dma engine
driver
- stmmac: add support for HW-accelerated VLAN stripping
- TI AM654x sw: add mqprio, frame preemption & coalescing
- gve: add support for non-4k page sizes.
- virtio-net: support dynamic coalescing moderation
- nVidia/Mellanox Ethernet datacenter switches:
- allow firmware upgrade without a reboot
- more flexible support for bridge flooding via the compressed
FID flooding mode
- Ethernet embedded switches:
- Microchip:
- fine-tune flow control and speed configurations in KSZ8xxx
- KSZ88X3: enable setting rmii reference
- Renesas:
- add jumbo frames support
- Marvell:
- 88E6xxx: add "eth-mac" and "rmon" stats support
- Ethernet PHYs:
- aquantia: add firmware load support
- at803x: refactor the driver to simplify adding support for more
chip variants
- NXP C45 TJA11xx: Add MACsec offload support
- Wifi:
- MediaTek (mt76):
- NVMEM EEPROM improvements
- mt7996 Extremely High Throughput (EHT) improvements
- mt7996 Wireless Ethernet Dispatcher (WED) support
- mt7996 36-bit DMA support
- Qualcomm (ath12k):
- support for a single MSI vector
- WCN7850: support AP mode
- Intel (iwlwifi):
- new debugfs file fw_dbg_clear
- allow concurrent P2P operation on DFS channels
- Bluetooth:
- QCA2066: support HFP offload
- ISO: more broadcast-related improvements
- NXP: better recovery in case receiver/transmitter get out of sync"
* tag 'net-next-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1714 commits)
lan78xx: remove redundant statement in lan78xx_get_eee
lan743x: remove redundant statement in lan743x_ethtool_get_eee
bnxt_en: Fix RCU locking for ntuple filters in bnxt_rx_flow_steer()
bnxt_en: Fix RCU locking for ntuple filters in bnxt_srxclsrldel()
bnxt_en: Remove unneeded variable in bnxt_hwrm_clear_vnic_filter()
tcp: Revert no longer abort SYN_SENT when receiving some ICMP
Revert "mlx5 updates 2023-12-20"
Revert "net: stmmac: Enable Per DMA Channel interrupt"
ipvlan: Remove usage of the deprecated ida_simple_xx() API
ipvlan: Fix a typo in a comment
net/sched: Remove ipt action tests
net: stmmac: Use interrupt mode INTM=1 for per channel irq
net: stmmac: Add support for TX/RX channel interrupt
net: stmmac: Make MSI interrupt routine generic
dt-bindings: net: snps,dwmac: per channel irq
net: phy: at803x: make read_status more generic
net: phy: at803x: add support for cdt cross short test for qca808x
net: phy: at803x: refactor qca808x cable test get status function
net: phy: at803x: generalize cdt fault length function
net: ethernet: cortina: Drop TSO support
...
Add test cases for the IOMMU_HWPT_INVALIDATE ioctl and verify it by using
the new IOMMU_TEST_OP_MD_CHECK_IOTLB.
Link: https://lore.kernel.org/r/20240111041015.47920-7-yi.l.liu@intel.com
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Co-developed-by: Yi Liu <yi.l.liu@intel.com>
Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Allow to test whether IOTLB has been invalidated or not.
Link: https://lore.kernel.org/r/20240111041015.47920-6-yi.l.liu@intel.com
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Christoph Muellner <christoph.muellner@vrull.eu> says:
From: Christoph Müllner <christoph.muellner@vrull.eu>
When building the RISC-V selftests with a riscv32 compiler I ran into
a couple of compiler warnings. While riscv32 support for these tests is
questionable, the fixes are so trivial that it is probably best to simply
apply them.
Note that the missing-include patch and some format string warnings
are also relevant for riscv64.
* b4-shazam-merge:
tools: selftests: riscv: Fix compile warnings in mm tests
tools: selftests: riscv: Fix compile warnings in vector tests
tools: selftests: riscv: Add missing include for vector test
tools: selftests: riscv: Fix compile warnings in cbo
tools: selftests: riscv: Fix compile warnings in hwprobe
Link: https://lore.kernel.org/r/20231123185821.2272504-1-christoph.muellner@vrull.eu
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
When building the mm tests with a riscv32 compiler, we see a range
of shift-count-overflow errors from shifting 1UL by more than 32 bits
in do_mmaps(). Since, the relevant code is only called from code that
is gated by `__riscv_xlen == 64`, we can just apply the same gating
to do_mmaps().
Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>
Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Link: https://lore.kernel.org/r/20231123185821.2272504-6-christoph.muellner@vrull.eu
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
GCC prints a couple of format string warnings when compiling
the vector tests. Let's follow the recommendation in
Documentation/printk-formats.txt to fix these warnings.
Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>
Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Link: https://lore.kernel.org/r/20231123185821.2272504-5-christoph.muellner@vrull.eu
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
GCC raises the following warning:
warning: 'status' may be used uninitialized
The warning comes from the fact, that the signature of waitpid() is
unknown and therefore the initialization of GCC cannot be guessed.
Let's add the relevant header to address this warning.
Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>
Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Reviewed-by: Andy Chiu <andy.chiu@sifive.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Link: https://lore.kernel.org/r/20231123185821.2272504-4-christoph.muellner@vrull.eu
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
GCC prints a couple of format string warnings when compiling
the cbo test. Let's follow the recommendation in
Documentation/printk-formats.txt to fix these warnings.
Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>
Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Link: https://lore.kernel.org/r/20231123185821.2272504-3-christoph.muellner@vrull.eu
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
GCC prints a couple of format string warnings when compiling
the hwprobe test. Let's follow the recommendation in
Documentation/printk-formats.txt to fix these warnings.
Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>
Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Link: https://lore.kernel.org/r/20231123185821.2272504-2-christoph.muellner@vrull.eu
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
To help make the move of sysctls out of kernel/sysctl.c not incur a size
penalty sysctl has been changed to allow us to not require the sentinel, the
final empty element on the sysctl array. Joel Granados has been doing all this
work. On the v6.6 kernel we got the major infrastructure changes required to
support this. For v6.7 we had all arch/ and drivers/ modified to remove
the sentinel. For v6.8-rc1 we get a few more updates for fs/ directory only.
The kernel/ directory is left but we'll save that for v6.9-rc1 as those patches
are still being reviewed. After that we then can expect also the removal of the
no longer needed check for procname == NULL.
Let us recap the purpose of this work:
- this helps reduce the overall build time size of the kernel and run time
memory consumed by the kernel by about ~64 bytes per array
- the extra 64-byte penalty is no longer inncurred now when we move sysctls
out from kernel/sysctl.c to their own files
Thomas Weißschuh also sent a few cleanups, for v6.9-rc1 we expect to see further
work by Thomas Weißschuh with the constificatin of the struct ctl_table.
Due to Joel Granados's work, and to help bring in new blood, I have suggested
for him to become a maintainer and he's accepted. So for v6.9-rc1 I look forward
to seeing him sent you a pull request for further sysctl changes. This also
removes Iurii Zaikin as a maintainer as he has moved on to other projects and
has had no time to help at all.
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Merge tag 'sysctl-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux
Pull sysctl updates from Luis Chamberlain:
"To help make the move of sysctls out of kernel/sysctl.c not incur a
size penalty sysctl has been changed to allow us to not require the
sentinel, the final empty element on the sysctl array. Joel Granados
has been doing all this work.
In the v6.6 kernel we got the major infrastructure changes required to
support this. For v6.7 we had all arch/ and drivers/ modified to
remove the sentinel. For v6.8-rc1 we get a few more updates for fs/
directory only.
The kernel/ directory is left but we'll save that for v6.9-rc1 as
those patches are still being reviewed. After that we then can expect
also the removal of the no longer needed check for procname == NULL.
Let us recap the purpose of this work:
- this helps reduce the overall build time size of the kernel and run
time memory consumed by the kernel by about ~64 bytes per array
- the extra 64-byte penalty is no longer inncurred now when we move
sysctls out from kernel/sysctl.c to their own files
Thomas Weißschuh also sent a few cleanups, for v6.9-rc1 we expect to
see further work by Thomas Weißschuh with the constificatin of the
struct ctl_table.
Due to Joel Granados's work, and to help bring in new blood, I have
suggested for him to become a maintainer and he's accepted. So for
v6.9-rc1 I look forward to seeing him sent you a pull request for
further sysctl changes. This also removes Iurii Zaikin as a maintainer
as he has moved on to other projects and has had no time to help at
all"
* tag 'sysctl-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux:
sysctl: remove struct ctl_path
sysctl: delete unused define SYSCTL_PERM_EMPTY_DIR
coda: Remove the now superfluous sentinel elements from ctl_table array
sysctl: Remove the now superfluous sentinel elements from ctl_table array
fs: Remove the now superfluous sentinel elements from ctl_table array
cachefiles: Remove the now superfluous sentinel element from ctl_table array
sysclt: Clarify the results of selftest run
sysctl: Add a selftest for handling empty dirs
sysctl: Fix out of bounds access for empty sysctl registers
MAINTAINERS: Add Joel Granados as co-maintainer for proc sysctl
MAINTAINERS: remove Iurii Zaikin from proc sysctl
Pick up the CPER to CXL driver integration work for v6.8. Some
additional cleanup of cper_estatus_print() messages is needed, but that
is to be handled incrementally.
This kselftest update for Linux 6.8-rc1 consists of enhancements
to reporting test results, fixes to root and user run behavior
and fixing ksft_print_msg() calls.
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Merge tag 'linux_kselftest-next-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest update from Shuah Khan:
"Enhancements to reporting test results, fixes to root and user run
behavior and fixing ksft_print_msg() calls"
* tag 'linux_kselftest-next-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
tracing/selftests: Add ownership modification tests for eventfs
selftests: sched: Remove initialization to 0 for a static variable
selftests: capabilities: namespace create varies for root and normal user
selftests: prctl: Add prctl test for PR_GET_NAME
kselftest/vDSO: Use ksft_print_msg() rather than printf in vdso_test_abi
kselftest/vDSO: Fix message formatting for clock_id logging
kselftest/vDSO: Make test name reporting for vdso_abi_test tooling friendly
selftests:x86: Fix Format String Warnings in lam.c
selftests/breakpoints: Fix format specifier in ksft_print_msg in step_after_suspend_test.c
selftests:breakpoints: Fix Format String Warning in breakpoint_test
This KUnit update for Linux 6.8-rc1 consists of:
- a new feature that adds APIs for managing devices introducing
a set of helper functions which allow devices (internally a
struct kunit_device) to be created and managed by KUnit.
These devices will be automatically unregistered on
test exit. These helpers can either use a user-provided
struct device_driver, or have one automatically created and
managed by KUnit. In both cases, the device lives on a new
kunit_bus.
- changes to switch drm/tests to use kunit devices
- several fixes and enhancements to attribute feature
- changes to reorganize deferred action function introducing
KUNIT_DEFINE_ACTION_WRAPPER
- new feature adds ability to run tests after boot using debugfs
- fixes and enhancements to string-stream-test:
- parse ERR_PTR in string_stream_destroy()
- unchecked dereference in bug fix in debugfs_print_results()
- handling errors from alloc_string_stream()
- NULL-dereference bug fix in kunit_init_suite()
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Merge tag 'linux_kselftest-kunit-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull KUnit updates from Shuah Khan:
- a new feature that adds APIs for managing devices introducing a set
of helper functions which allow devices (internally a struct
kunit_device) to be created and managed by KUnit.
These devices will be automatically unregistered on test exit. These
helpers can either use a user-provided struct device_driver, or have
one automatically created and managed by KUnit. In both cases, the
device lives on a new kunit_bus.
- changes to switch drm/tests to use kunit devices
- several fixes and enhancements to attribute feature
- changes to reorganize deferred action function introducing
KUNIT_DEFINE_ACTION_WRAPPER
- new feature adds ability to run tests after boot using debugfs
- fixes and enhancements to string-stream-test:
- parse ERR_PTR in string_stream_destroy()
- unchecked dereference in bug fix in debugfs_print_results()
- handling errors from alloc_string_stream()
- NULL-dereference bug fix in kunit_init_suite()
* tag 'linux_kselftest-kunit-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (27 commits)
kunit: Fix some comments which were mistakenly kerneldoc
kunit: Protect string comparisons against NULL
kunit: Add example of kunit_activate_static_stub() with pointer-to-function
kunit: Allow passing function pointer to kunit_activate_static_stub()
kunit: Fix NULL-dereference in kunit_init_suite() if suite->log is NULL
kunit: Reset test->priv after each param iteration
kunit: Add example for using test->priv
drm/tests: Switch to kunit devices
ASoC: topology: Replace fake root_device with kunit_device in tests
overflow: Replace fake root_device with kunit_device
fortify: test: Use kunit_device
kunit: Add APIs for managing devices
Documentation: Add debugfs docs with run after boot
kunit: add ability to run tests after boot using debugfs
kunit: add is_init test attribute
kunit: add example suite to test init suites
kunit: add KUNIT_INIT_TABLE to init linker section
kunit: move KUNIT_TABLE out of INIT_DATA
kunit: tool: add test for parsing attributes
kunit: tool: fix parsing of test attributes
...
This nolibc update for Linux 6.8-rc1 consists of:
* Support for PIC mode on MIPS.
* Support for getrlimit()/setrlimit().
* Replace some custom declarations with UAPI includes.
* A new script "run-tests.sh" to run the testsuite over different architectures
and configurations.
* A few non-functional code cleanups.
* Minor improvements to nolibc-test, primarily to support the test script.
There are no urgent fixes available at this time.
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Merge tag 'linux_kselftest-nolibc-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull nolibc updates from Shuah Khan:
- Support for PIC mode on MIPS
- Support for getrlimit()/setrlimit()
- Replace some custom declarations with UAPI includes
- A new script "run-tests.sh" to run the testsuite over different
architectures and configurations
- A few non-functional code cleanups
- Minor improvements to nolibc-test, primarily to support the test
script
* tag 'linux_kselftest-nolibc-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (22 commits)
selftests/nolibc: disable coredump via setrlimit
tools/nolibc: add support for getrlimit/setrlimit
tools/nolibc: drop custom definition of struct rusage
tools/nolibc: drop duplicated testcase ioctl_tiocinq
tools/nolibc: annotate va_list printf formats
selftests/nolibc: make result alignment more robust
tools/nolibc: mips: add support for PIC
selftests/nolibc: run-tests.sh: enable testing via qemu-user
selftests/nolibc: introduce QEMU_ARCH_USER
selftests/nolibc: fix testcase status alignment
selftests/nolibc: add configuration for mipso32be
selftests/nolibc: extraconfig support
selftests/nolibc: explicitly specify ABI for MIPS
selftests/nolibc: use XARCH for MIPS
tools/nolibc: move MIPS ABI validation into arch-mips.h
tools/nolibc: error out on unsupported architecture
selftests/nolibc: add script to run testsuite
selftests/nolibc: support out-of-tree builds
selftests/nolibc: anchor paths in $(srcdir) if possible
selftests/nolibc: use EFI -bios for LoongArch qemu
...
The CXL CPER and event log records share everything but a UUID/GUID in
their structures.
Define a cxl_event union without the UUID/GUID to be shared between the
CPER and event log record formats. Adjust the code to use this union.
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Link: https://lore.kernel.org/r/20231220-cxl-cper-v5-6-1bb8a4ca2c7a@intel.com
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
The UEFI CXL CPER structure does not include the UUID. Now that the
UUID is passed separately to the trace event there is no need to have
the UUID in those structures.
Move UUID from the event record header to the raw structures. Adjust
cxl-test to Create dummy structures for creating test records.
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Link: https://lore.kernel.org/r/20231220-cxl-cper-v5-5-1bb8a4ca2c7a@intel.com
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Dan points out in review that the cxl_test code could be made better
through the use of UUID's defines rather than being open coded.[1]
Create UUID defines and use them rather than open coding them.
Suggested-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Link: http://lore.kernel.org/r/65738d09e30e2_45e0129451@dwillia2-xfh.jf.intel.com.notmuch [1]
Link: https://lore.kernel.org/r/20231220-cxl-cper-v5-3-1bb8a4ca2c7a@intel.com
[djbw: clang-format uuid definitions]
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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Merge tag 'landlock-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux
Pull Landlock updates from Mickaël Salaün:
"New tests, a slight optimization, and some cosmetic changes"
* tag 'landlock-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux:
landlock: Optimize the number of calls to get_access_mask slightly
selftests/landlock: Rename "permitted" to "allowed" in ftruncate tests
landlock: Remove remaining "inline" modifiers in .c files [v6.6]
landlock: Remove remaining "inline" modifiers in .c files [v6.1]
landlock: Remove remaining "inline" modifiers in .c files [v5.15]
selftests/landlock: Add tests to check unhandled rule's access rights
selftests/landlock: Add tests to check unknown rule's access rights
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Merge tag 'lsm-pr-20240105' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm
Pull security module updates from Paul Moore:
- Add three new syscalls: lsm_list_modules(), lsm_get_self_attr(), and
lsm_set_self_attr().
The first syscall simply lists the LSMs enabled, while the second and
third get and set the current process' LSM attributes. Yes, these
syscalls may provide similar functionality to what can be found under
/proc or /sys, but they were designed to support multiple,
simultaneaous (stacked) LSMs from the start as opposed to the current
/proc based solutions which were created at a time when only one LSM
was allowed to be active at a given time.
We have spent considerable time discussing ways to extend the
existing /proc interfaces to support multiple, simultaneaous LSMs and
even our best ideas have been far too ugly to support as a kernel
API; after +20 years in the kernel, I felt the LSM layer had
established itself enough to justify a handful of syscalls.
Support amongst the individual LSM developers has been nearly
unanimous, with a single objection coming from Tetsuo (TOMOYO) as he
is worried that the LSM_ID_XXX token concept will make it more
difficult for out-of-tree LSMs to survive. Several members of the LSM
community have demonstrated the ability for out-of-tree LSMs to
continue to exist by picking high/unused LSM_ID values as well as
pointing out that many kernel APIs rely on integer identifiers, e.g.
syscalls (!), but unfortunately Tetsuo's objections remain.
My personal opinion is that while I have no interest in penalizing
out-of-tree LSMs, I'm not going to penalize in-tree development to
support out-of-tree development, and I view this as a necessary step
forward to support the push for expanded LSM stacking and reduce our
reliance on /proc and /sys which has occassionally been problematic
for some container users. Finally, we have included the linux-api
folks on (all?) recent revisions of the patchset and addressed all of
their concerns.
- Add a new security_file_ioctl_compat() LSM hook to handle the 32-bit
ioctls on 64-bit systems problem.
This patch includes support for all of the existing LSMs which
provide ioctl hooks, although it turns out only SELinux actually
cares about the individual ioctls. It is worth noting that while
Casey (Smack) and Tetsuo (TOMOYO) did not give explicit ACKs to this
patch, they did both indicate they are okay with the changes.
- Fix a potential memory leak in the CALIPSO code when IPv6 is disabled
at boot.
While it's good that we are fixing this, I doubt this is something
users are seeing in the wild as you need to both disable IPv6 and
then attempt to configure IPv6 labeled networking via
NetLabel/CALIPSO; that just doesn't make much sense.
Normally this would go through netdev, but Jakub asked me to take
this patch and of all the trees I maintain, the LSM tree seemed like
the best fit.
- Update the LSM MAINTAINERS entry with additional information about
our process docs, patchwork, bug reporting, etc.
I also noticed that the Lockdown LSM is missing a dedicated
MAINTAINERS entry so I've added that to the pull request. I've been
working with one of the major Lockdown authors/contributors to see if
they are willing to step up and assume a Lockdown maintainer role;
hopefully that will happen soon, but in the meantime I'll continue to
look after it.
- Add a handful of mailmap entries for Serge Hallyn and myself.
* tag 'lsm-pr-20240105' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm: (27 commits)
lsm: new security_file_ioctl_compat() hook
lsm: Add a __counted_by() annotation to lsm_ctx.ctx
calipso: fix memory leak in netlbl_calipso_add_pass()
selftests: remove the LSM_ID_IMA check in lsm/lsm_list_modules_test
MAINTAINERS: add an entry for the lockdown LSM
MAINTAINERS: update the LSM entry
mailmap: add entries for Serge Hallyn's dead accounts
mailmap: update/replace my old email addresses
lsm: mark the lsm_id variables are marked as static
lsm: convert security_setselfattr() to use memdup_user()
lsm: align based on pointer length in lsm_fill_user_ctx()
lsm: consolidate buffer size handling into lsm_fill_user_ctx()
lsm: correct error codes in security_getselfattr()
lsm: cleanup the size counters in security_getselfattr()
lsm: don't yet account for IMA in LSM_CONFIG_COUNT calculation
lsm: drop LSM_ID_IMA
LSM: selftests for Linux Security Module syscalls
SELinux: Add selfattr hooks
AppArmor: Add selfattr hooks
Smack: implement setselfattr and getselfattr hooks
...
are included in this merge do the following:
- Peng Zhang has done some mapletree maintainance work in the
series
"maple_tree: add mt_free_one() and mt_attr() helpers"
"Some cleanups of maple tree"
- In the series "mm: use memmap_on_memory semantics for dax/kmem"
Vishal Verma has altered the interworking between memory-hotplug
and dax/kmem so that newly added 'device memory' can more easily
have its memmap placed within that newly added memory.
- Matthew Wilcox continues folio-related work (including a few
fixes) in the patch series
"Add folio_zero_tail() and folio_fill_tail()"
"Make folio_start_writeback return void"
"Fix fault handler's handling of poisoned tail pages"
"Convert aops->error_remove_page to ->error_remove_folio"
"Finish two folio conversions"
"More swap folio conversions"
- Kefeng Wang has also contributed folio-related work in the series
"mm: cleanup and use more folio in page fault"
- Jim Cromie has improved the kmemleak reporting output in the
series "tweak kmemleak report format".
- In the series "stackdepot: allow evicting stack traces" Andrey
Konovalov to permits clients (in this case KASAN) to cause
eviction of no longer needed stack traces.
- Charan Teja Kalla has fixed some accounting issues in the page
allocator's atomic reserve calculations in the series "mm:
page_alloc: fixes for high atomic reserve caluculations".
- Dmitry Rokosov has added to the samples/ dorectory some sample
code for a userspace memcg event listener application. See the
series "samples: introduce cgroup events listeners".
- Some mapletree maintanance work from Liam Howlett in the series
"maple_tree: iterator state changes".
- Nhat Pham has improved zswap's approach to writeback in the
series "workload-specific and memory pressure-driven zswap
writeback".
- DAMON/DAMOS feature and maintenance work from SeongJae Park in
the series
"mm/damon: let users feed and tame/auto-tune DAMOS"
"selftests/damon: add Python-written DAMON functionality tests"
"mm/damon: misc updates for 6.8"
- Yosry Ahmed has improved memcg's stats flushing in the series
"mm: memcg: subtree stats flushing and thresholds".
- In the series "Multi-size THP for anonymous memory" Ryan Roberts
has added a runtime opt-in feature to transparent hugepages which
improves performance by allocating larger chunks of memory during
anonymous page faults.
- Matthew Wilcox has also contributed some cleanup and maintenance
work against eh buffer_head code int he series "More buffer_head
cleanups".
- Suren Baghdasaryan has done work on Andrea Arcangeli's series
"userfaultfd move option". UFFDIO_MOVE permits userspace heap
compaction algorithms to move userspace's pages around rather than
UFFDIO_COPY'a alloc/copy/free.
- Stefan Roesch has developed a "KSM Advisor", in the series
"mm/ksm: Add ksm advisor". This is a governor which tunes KSM's
scanning aggressiveness in response to userspace's current needs.
- Chengming Zhou has optimized zswap's temporary working memory
use in the series "mm/zswap: dstmem reuse optimizations and
cleanups".
- Matthew Wilcox has performed some maintenance work on the
writeback code, both code and within filesystems. The series is
"Clean up the writeback paths".
- Andrey Konovalov has optimized KASAN's handling of alloc and
free stack traces for secondary-level allocators, in the series
"kasan: save mempool stack traces".
- Andrey also performed some KASAN maintenance work in the series
"kasan: assorted clean-ups".
- David Hildenbrand has gone to town on the rmap code. Cleanups,
more pte batching, folio conversions and more. See the series
"mm/rmap: interface overhaul".
- Kinsey Ho has contributed some maintenance work on the MGLRU
code in the series "mm/mglru: Kconfig cleanup".
- Matthew Wilcox has contributed lruvec page accounting code
cleanups in the series "Remove some lruvec page accounting
functions".
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Merge tag 'mm-stable-2024-01-08-15-31' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:
"Many singleton patches against the MM code. The patch series which are
included in this merge do the following:
- Peng Zhang has done some mapletree maintainance work in the series
'maple_tree: add mt_free_one() and mt_attr() helpers'
'Some cleanups of maple tree'
- In the series 'mm: use memmap_on_memory semantics for dax/kmem'
Vishal Verma has altered the interworking between memory-hotplug
and dax/kmem so that newly added 'device memory' can more easily
have its memmap placed within that newly added memory.
- Matthew Wilcox continues folio-related work (including a few fixes)
in the patch series
'Add folio_zero_tail() and folio_fill_tail()'
'Make folio_start_writeback return void'
'Fix fault handler's handling of poisoned tail pages'
'Convert aops->error_remove_page to ->error_remove_folio'
'Finish two folio conversions'
'More swap folio conversions'
- Kefeng Wang has also contributed folio-related work in the series
'mm: cleanup and use more folio in page fault'
- Jim Cromie has improved the kmemleak reporting output in the series
'tweak kmemleak report format'.
- In the series 'stackdepot: allow evicting stack traces' Andrey
Konovalov to permits clients (in this case KASAN) to cause eviction
of no longer needed stack traces.
- Charan Teja Kalla has fixed some accounting issues in the page
allocator's atomic reserve calculations in the series 'mm:
page_alloc: fixes for high atomic reserve caluculations'.
- Dmitry Rokosov has added to the samples/ dorectory some sample code
for a userspace memcg event listener application. See the series
'samples: introduce cgroup events listeners'.
- Some mapletree maintanance work from Liam Howlett in the series
'maple_tree: iterator state changes'.
- Nhat Pham has improved zswap's approach to writeback in the series
'workload-specific and memory pressure-driven zswap writeback'.
- DAMON/DAMOS feature and maintenance work from SeongJae Park in the
series
'mm/damon: let users feed and tame/auto-tune DAMOS'
'selftests/damon: add Python-written DAMON functionality tests'
'mm/damon: misc updates for 6.8'
- Yosry Ahmed has improved memcg's stats flushing in the series 'mm:
memcg: subtree stats flushing and thresholds'.
- In the series 'Multi-size THP for anonymous memory' Ryan Roberts
has added a runtime opt-in feature to transparent hugepages which
improves performance by allocating larger chunks of memory during
anonymous page faults.
- Matthew Wilcox has also contributed some cleanup and maintenance
work against eh buffer_head code int he series 'More buffer_head
cleanups'.
- Suren Baghdasaryan has done work on Andrea Arcangeli's series
'userfaultfd move option'. UFFDIO_MOVE permits userspace heap
compaction algorithms to move userspace's pages around rather than
UFFDIO_COPY'a alloc/copy/free.
- Stefan Roesch has developed a 'KSM Advisor', in the series 'mm/ksm:
Add ksm advisor'. This is a governor which tunes KSM's scanning
aggressiveness in response to userspace's current needs.
- Chengming Zhou has optimized zswap's temporary working memory use
in the series 'mm/zswap: dstmem reuse optimizations and cleanups'.
- Matthew Wilcox has performed some maintenance work on the writeback
code, both code and within filesystems. The series is 'Clean up the
writeback paths'.
- Andrey Konovalov has optimized KASAN's handling of alloc and free
stack traces for secondary-level allocators, in the series 'kasan:
save mempool stack traces'.
- Andrey also performed some KASAN maintenance work in the series
'kasan: assorted clean-ups'.
- David Hildenbrand has gone to town on the rmap code. Cleanups, more
pte batching, folio conversions and more. See the series 'mm/rmap:
interface overhaul'.
- Kinsey Ho has contributed some maintenance work on the MGLRU code
in the series 'mm/mglru: Kconfig cleanup'.
- Matthew Wilcox has contributed lruvec page accounting code cleanups
in the series 'Remove some lruvec page accounting functions'"
* tag 'mm-stable-2024-01-08-15-31' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (361 commits)
mm, treewide: rename MAX_ORDER to MAX_PAGE_ORDER
mm, treewide: introduce NR_PAGE_ORDERS
selftests/mm: add separate UFFDIO_MOVE test for PMD splitting
selftests/mm: skip test if application doesn't has root privileges
selftests/mm: conform test to TAP format output
selftests: mm: hugepage-mmap: conform to TAP format output
selftests/mm: gup_test: conform test to TAP format output
mm/selftests: hugepage-mremap: conform test to TAP format output
mm/vmstat: move pgdemote_* out of CONFIG_NUMA_BALANCING
mm: zsmalloc: return -ENOSPC rather than -EINVAL in zs_malloc while size is too large
mm/memcontrol: remove __mod_lruvec_page_state()
mm/khugepaged: use a folio more in collapse_file()
slub: use a folio in __kmalloc_large_node
slub: use folio APIs in free_large_kmalloc()
slub: use alloc_pages_node() in alloc_slab_page()
mm: remove inc/dec lruvec page state functions
mm: ratelimit stat flush from workingset shrinker
kasan: stop leaking stack trace handles
mm/mglru: remove CONFIG_TRANSPARENT_HUGEPAGE
mm/mglru: add dummy pmd_dirty()
...
GCC 13.2.0 reported the warning of the print format specifier:
conf.c: In function ‘sysfs_get’:
conf.c:181:72: warning: format ‘%s’ expects argument of type ‘char *’, \
but argument 3 has type ‘int’ [-Wformat=]
181 | ksft_exit_fail_msg("sysfs: unable to read value '%s': %s\n",
| ~^
| |
| char *
| %d
The fix passes strerror(errno) as it was intended, like in the sibling error
exit message.
Fixes: aba51cd094 ("selftests: alsa - add PCM test")
Cc: Mark Brown <broonie@kernel.org>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: linux-sound@vger.kernel.org
Cc: linux-kselftest@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Mirsad Todorovac <mirsad.todorovac@alu.unizg.hr>
Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20240107173704.937824-5-mirsad.todorovac@alu.unizg.hr
Signed-off-by: Takashi Iwai <tiwai@suse.de>
GCC 13.2.0 compiler issued the following warning:
mixer-test.c:350:80: warning: format ‘%ld’ expects argument of type ‘long int’, \
but argument 5 has type ‘unsigned int’ [-Wformat=]
350 | ksft_print_msg("%s.%d value %ld more than item count %ld\n",
| ~~^
| |
| long int
| %d
351 | ctl->name, index, int_val,
352 | snd_ctl_elem_info_get_items(ctl->info));
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| |
| unsigned int
Fixing the format specifier in call to ksft_print_msg() according to the
compiler suggestion silences the warning.
Fixes: 10f2f19466 ("kselftest: alsa: Validate values read from enumerations")
Cc: Mark Brown <broonie@kernel.org>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: linux-sound@vger.kernel.org
Cc: linux-kselftest@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Mirsad Todorovac <mirsad.todorovac@alu.unizg.hr>
Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20240107173704.937824-4-mirsad.todorovac@alu.unizg.hr
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The GCC 13.2.0 compiler issued the following warning:
mixer-test.c: In function ‘ctl_value_index_valid’:
mixer-test.c:322:79: warning: format ‘%lld’ expects argument of type ‘long long int’, \
but argument 5 has type ‘long int’ [-Wformat=]
322 | ksft_print_msg("%s.%d value %lld more than maximum %lld\n",
| ~~~^
| |
| long long int
| %ld
323 | ctl->name, index, int64_val,
324 | snd_ctl_elem_info_get_max(ctl->info));
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| |
| long int
Fixing the format specifier as advised by the compiler suggestion removes the
warning.
Fixes: 3f48b137d8 ("kselftest: alsa: Factor out check that values meet constraints")
Cc: Mark Brown <broonie@kernel.org>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: linux-sound@vger.kernel.org
Cc: linux-kselftest@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Mirsad Todorovac <mirsad.todorovac@alu.unizg.hr>
Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20240107173704.937824-3-mirsad.todorovac@alu.unizg.hr
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Minor fix in the number of arguments to error reporting function in the
test program as reported by GCC 13.2.0 warning.
mixer-test.c: In function ‘find_controls’:
mixer-test.c:169:44: warning: too many arguments for format [-Wformat-extra-args]
169 | ksft_exit_fail_msg("snd_ctl_poll_descriptors() failed for %d\n",
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The number of arguments in call to ksft_exit_fail_msg() doesn't correspond
to the format specifiers, so this is adjusted resembling the sibling calls
to the error function.
Fixes: b1446bda56 ("kselftest: alsa: Check for event generation when we write to controls")
Cc: Mark Brown <broonie@kernel.org>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: linux-sound@vger.kernel.org
Cc: linux-kselftest@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Mirsad Todorovac <mirsad.todorovac@alu.unizg.hr>
Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20240107173704.937824-2-mirsad.todorovac@alu.unizg.hr
Signed-off-by: Takashi Iwai <tiwai@suse.de>
- Yafang Shao added task_get_cgroup1() helper to enable a similar BPF helper
so that BPF progs can be more useful on cgroup1 hierarchies. While cgroup1
is mostly in maintenance mode, this addition is very small while having an
outsized usefulness for users who are still on cgroup1. Yafang also
optimized root cgroup list access by making it RCU protected in the
process.
- Waiman Long optimized rstat operation leading to substantially lower and
more consistent lock hold time while flushing the hierarchical statistics.
As the lock can be acquired briefly in various hot paths, this reduction
has cascading benefits.
- Waiman also improved the quality of isolation for cpuset's isolated
partitions. CPUs which are allocated to isolated partitions are now
excluded from running unbound work items and cpu_is_isolated() test which
is used by vmstat and memcg to reduce interference now includes cpuset
isolated CPUs. While it isn't there yet, the hope is eventually reaching
parity with the isolation level provided by the `isolcpus` boot param but
in a dynamic manner.
This involved a couple workqueue patches which were applied directly to
cgroup/for-6.8 rather than ping-ponged through the wq tree. This was
because the wq code change was small and the area is usually very static
and unlikely to cause conflicts. However, luck had it that there was a wq
bug fix in the area during the 6.7 cycle which caused a conflict. The
conflict is contextual but can be a bit confusing to resolve, so there is
one merge from wq/for-6.7-fixes.
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Merge tag 'cgroup-for-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup updates from Tejun Heo:
- Yafang Shao added task_get_cgroup1() helper to enable a similar BPF
helper so that BPF progs can be more useful on cgroup1 hierarchies.
While cgroup1 is mostly in maintenance mode, this addition is very
small while having an outsized usefulness for users who are still on
cgroup1. Yafang also optimized root cgroup list access by making it
RCU protected in the process.
- Waiman Long optimized rstat operation leading to substantially lower
and more consistent lock hold time while flushing the hierarchical
statistics. As the lock can be acquired briefly in various hot paths,
this reduction has cascading benefits.
- Waiman also improved the quality of isolation for cpuset's isolated
partitions. CPUs which are allocated to isolated partitions are now
excluded from running unbound work items and cpu_is_isolated() test
which is used by vmstat and memcg to reduce interference now includes
cpuset isolated CPUs. While it isn't there yet, the hope is
eventually reaching parity with the isolation level provided by the
`isolcpus` boot param but in a dynamic manner.
* tag 'cgroup-for-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup: Move rcu_head up near the top of cgroup_root
cgroup/cpuset: Include isolated cpuset CPUs in cpu_is_isolated() check
cgroup: Avoid false cacheline sharing of read mostly rstat_cpu
cgroup/rstat: Optimize cgroup_rstat_updated_list()
cgroup: Fix documentation for cpu.idle
cgroup/cpuset: Expose cpuset.cpus.isolated
workqueue: Move workqueue_set_unbound_cpumask() and its helpers inside CONFIG_SYSFS
cgroup/rstat: Reduce cpu_lock hold time in cgroup_rstat_flush_locked()
cgroup/cpuset: Take isolated CPUs out of workqueue unbound cpumask
cgroup/cpuset: Keep track of CPUs in isolated partitions
selftests/cgroup: Minor code cleanup and reorganization of test_cpuset_prs.sh
workqueue: Add workqueue_unbound_exclude_cpumask() to exclude CPUs from wq_unbound_cpumask
selftests: cgroup: Fixes a typo in a comment
cgroup: Add a new helper for cgroup1 hierarchy
cgroup: Add annotation for holding namespace_sem in current_cgns_cgroup_from_root()
cgroup: Eliminate the need for cgroup_mutex in proc_cgroup_show()
cgroup: Make operations on the cgroup root_list RCU safe
cgroup: Remove unnecessary list_empty()
* for-next/cpufeature
- Remove ARM64_HAS_NO_HW_PREFETCH copy_page() optimisation for ye olde
Thunder-X machines.
- Avoid mapping KPTI trampoline when it is not required.
- Make CPU capability API more robust during early initialisation.
* for-next/early-idreg-overrides
- Remove dependencies on core kernel helpers from the early
command-line parsing logic in preparation for moving this code
before the kernel is mapped.
* for-next/fpsimd
- Restore kernel-mode fpsimd context lazily, allowing us to run fpsimd
code sequences in the kernel with pre-emption enabled.
* for-next/kbuild
- Install 'vmlinuz.efi' when CONFIG_EFI_ZBOOT=y.
- Makefile cleanups.
* for-next/lpa2-prep
- Preparatory work for enabling the 'LPA2' extension, which will
introduce 52-bit virtual and physical addressing even with 4KiB
pages (including for KVM guests).
* for-next/misc
- Remove dead code and fix a typo.
* for-next/mm
- Pass NUMA node information for IRQ stack allocations.
* for-next/perf
- Add perf support for the Synopsys DesignWare PCIe PMU.
- Add support for event counting thresholds (FEAT_PMUv3_TH) introduced
in Armv8.8.
- Add support for i.MX8DXL SoCs to the IMX DDR PMU driver.
- Minor PMU driver fixes and optimisations.
* for-next/rip-vpipt
- Remove what support we had for the obsolete VPIPT I-cache policy.
* for-next/selftests
- Improvements to the SVE and SME selftests.
* for-next/stacktrace
- Refactor kernel unwind logic so that it can used by BPF unwinding
and, eventually, reliable backtracing.
* for-next/sysregs
- Update a bunch of register definitions based on the latest XML drop
from Arm.
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Will Deacon:
"CPU features:
- Remove ARM64_HAS_NO_HW_PREFETCH copy_page() optimisation for ye
olde Thunder-X machines
- Avoid mapping KPTI trampoline when it is not required
- Make CPU capability API more robust during early initialisation
Early idreg overrides:
- Remove dependencies on core kernel helpers from the early
command-line parsing logic in preparation for moving this code
before the kernel is mapped
FPsimd:
- Restore kernel-mode fpsimd context lazily, allowing us to run
fpsimd code sequences in the kernel with pre-emption enabled
KBuild:
- Install 'vmlinuz.efi' when CONFIG_EFI_ZBOOT=y
- Makefile cleanups
LPA2 prep:
- Preparatory work for enabling the 'LPA2' extension, which will
introduce 52-bit virtual and physical addressing even with 4KiB
pages (including for KVM guests).
Misc:
- Remove dead code and fix a typo
MM:
- Pass NUMA node information for IRQ stack allocations
Perf:
- Add perf support for the Synopsys DesignWare PCIe PMU
- Add support for event counting thresholds (FEAT_PMUv3_TH)
introduced in Armv8.8
- Add support for i.MX8DXL SoCs to the IMX DDR PMU driver.
- Minor PMU driver fixes and optimisations
RIP VPIPT:
- Remove what support we had for the obsolete VPIPT I-cache policy
Selftests:
- Improvements to the SVE and SME selftests
Stacktrace:
- Refactor kernel unwind logic so that it can used by BPF unwinding
and, eventually, reliable backtracing
Sysregs:
- Update a bunch of register definitions based on the latest XML drop
from Arm"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (87 commits)
kselftest/arm64: Don't probe the current VL for unsupported vector types
efi/libstub: zboot: do not use $(shell ...) in cmd_copy_and_pad
arm64: properly install vmlinuz.efi
arm64/sysreg: Add missing system instruction definitions for FGT
arm64/sysreg: Add missing system register definitions for FGT
arm64/sysreg: Add missing ExtTrcBuff field definition to ID_AA64DFR0_EL1
arm64/sysreg: Add missing Pauth_LR field definitions to ID_AA64ISAR1_EL1
arm64: memory: remove duplicated include
arm: perf: Fix ARCH=arm build with GCC
arm64: Align boot cpucap handling with system cpucap handling
arm64: Cleanup system cpucap handling
MAINTAINERS: add maintainers for DesignWare PCIe PMU driver
drivers/perf: add DesignWare PCIe PMU driver
PCI: Move pci_clear_and_set_dword() helper to PCI header
PCI: Add Alibaba Vendor ID to linux/pci_ids.h
docs: perf: Add description for Synopsys DesignWare PCIe PMU driver
arm64: irq: set the correct node for shadow call stack
Revert "perf/arm_dmc620: Remove duplicate format attribute #defines"
arm64: fpsimd: Implement lazy restore for kernel mode FPSIMD
arm64: fpsimd: Preserve/restore kernel mode NEON at context switch
...
- Add initial support to recognise the HeXin C2000 processor.
- Add papr-vpd and papr-sysparm character device drivers for VPD & sysparm
retrieval, so userspace tools can be adapted to avoid doing raw firmware
calls from userspace.
- Sched domains optimisations for shared processor partitions on P9/P10.
- A series of optimisations for KVM running as a nested HV under PowerVM.
- Other small features and fixes.
Thanks to: Aditya Gupta, Aneesh Kumar K.V, Arnd Bergmann, Christophe Leroy,
Colin Ian King, Dario Binacchi, David Heidelberg, Geoff Levand, Gustavo A.
R. Silva, Haoran Liu, Jordan Niethe, Kajol Jain, Kevin Hao, Kunwu Chan, Li
kunyu, Li zeming, Masahiro Yamada, Michal Suchánek, Nathan Lynch, Naveen N Rao,
Nicholas Piggin, Randy Dunlap, Sathvika Vasireddy, Srikar Dronamraju, Stephen
Rothwell, Vaibhav Jain, Zhao Ke.
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Merge tag 'powerpc-6.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
- Add initial support to recognise the HeXin C2000 processor.
- Add papr-vpd and papr-sysparm character device drivers for VPD &
sysparm retrieval, so userspace tools can be adapted to avoid doing
raw firmware calls from userspace.
- Sched domains optimisations for shared processor partitions on
P9/P10.
- A series of optimisations for KVM running as a nested HV under
PowerVM.
- Other small features and fixes.
Thanks to Aditya Gupta, Aneesh Kumar K.V, Arnd Bergmann, Christophe
Leroy, Colin Ian King, Dario Binacchi, David Heidelberg, Geoff Levand,
Gustavo A. R. Silva, Haoran Liu, Jordan Niethe, Kajol Jain, Kevin Hao,
Kunwu Chan, Li kunyu, Li zeming, Masahiro Yamada, Michal Suchánek,
Nathan Lynch, Naveen N Rao, Nicholas Piggin, Randy Dunlap, Sathvika
Vasireddy, Srikar Dronamraju, Stephen Rothwell, Vaibhav Jain, and
Zhao Ke.
* tag 'powerpc-6.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (96 commits)
powerpc/ps3_defconfig: Disable PPC64_BIG_ENDIAN_ELF_ABI_V2
powerpc/86xx: Drop unused CONFIG_MPC8610
powerpc/powernv: Add error handling to opal_prd_range_is_valid
selftests/powerpc: Fix spelling mistake "EACCESS" -> "EACCES"
powerpc/hvcall: Reorder Nestedv2 hcall opcodes
powerpc/ps3: Add missing set_freezable() for ps3_probe_thread()
powerpc/mpc83xx: Use wait_event_freezable() for freezable kthread
powerpc/mpc83xx: Add the missing set_freezable() for agent_thread_fn()
powerpc/fsl: Fix fsl,tmu-calibration to match the schema
powerpc/smp: Dynamically build Powerpc topology
powerpc/smp: Avoid asym packing within thread_group of a core
powerpc/smp: Add __ro_after_init attribute
powerpc/smp: Disable MC domain for shared processor
powerpc/smp: Enable Asym packing for cores on shared processor
powerpc/sched: Cleanup vcpu_is_preempted()
powerpc: add cpu_spec.cpu_features to vmcoreinfo
powerpc/imc-pmu: Add a null pointer check in update_events_in_group()
powerpc/powernv: Add a null pointer check in opal_powercap_init()
powerpc/powernv: Add a null pointer check in opal_event_init()
powerpc/powernv: Add a null pointer check to scom_debug_init_one()
...
commit 23baf831a3 ("mm, treewide: redefine MAX_ORDER sanely") has
changed the definition of MAX_ORDER to be inclusive. This has caused
issues with code that was not yet upstream and depended on the previous
definition.
To draw attention to the altered meaning of the define, rename MAX_ORDER
to MAX_PAGE_ORDER.
Link: https://lkml.kernel.org/r/20231228144704.14033-2-kirill.shutemov@linux.intel.com
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Merge tag 'vfs-6.8.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs mount updates from Christian Brauner:
"This contains the work to retrieve detailed information about mounts
via two new system calls. This is hopefully the beginning of the end
of the saga that started with fsinfo() years ago.
The LWN articles in [1] and [2] can serve as a summary so we can avoid
rehashing everything here.
At LSFMM in May 2022 we got into a room and agreed on what we want to
do about fsinfo(). Basically, split it into pieces. This is the first
part of that agreement. Specifically, it is concerned with retrieving
information about mounts. So this only concerns the mount information
retrieval, not the mount table change notification, or the extended
filesystem specific mount option work. That is separate work.
Currently mounts have a 32bit id. Mount ids are already in heavy use
by libmount and other low-level userspace but they can't be relied
upon because they're recycled very quickly. We agreed that mounts
should carry a unique 64bit id by which they can be referenced
directly. This is now implemented as part of this work.
The new 64bit mount id is exposed in statx() through the new
STATX_MNT_ID_UNIQUE flag. If the flag isn't raised the old mount id is
returned. If it is raised and the kernel supports the new 64bit mount
id the flag is raised in the result mask and the new 64bit mount id is
returned. New and old mount ids do not overlap so they cannot be
conflated.
Two new system calls are introduced that operate on the 64bit mount
id: statmount() and listmount(). A summary of the api and usage can be
found on LWN as well (cf. [3]) but of course, I'll provide a summary
here as well.
Both system calls rely on struct mnt_id_req. Which is the request
struct used to pass the 64bit mount id identifying the mount to
operate on. It is extensible to allow for the addition of new
parameters and for future use in other apis that make use of mount
ids.
statmount() mimicks the semantics of statx() and exposes a set flags
that userspace may raise in mnt_id_req to request specific information
to be retrieved. A statmount() call returns a struct statmount filled
in with information about the requested mount. Supported requests are
indicated by raising the request flag passed in struct mnt_id_req in
the @mask argument in struct statmount.
Currently we do support:
- STATMOUNT_SB_BASIC:
Basic filesystem info
- STATMOUNT_MNT_BASIC
Mount information (mount id, parent mount id, mount attributes etc)
- STATMOUNT_PROPAGATE_FROM
Propagation from what mount in current namespace
- STATMOUNT_MNT_ROOT
Path of the root of the mount (e.g., mount --bind /bla /mnt returns /bla)
- STATMOUNT_MNT_POINT
Path of the mount point (e.g., mount --bind /bla /mnt returns /mnt)
- STATMOUNT_FS_TYPE
Name of the filesystem type as the magic number isn't enough due to submounts
The string options STATMOUNT_MNT_{ROOT,POINT} and STATMOUNT_FS_TYPE
are appended to the end of the struct. Userspace can use the offsets
in @fs_type, @mnt_root, and @mnt_point to reference those strings
easily.
The struct statmount reserves quite a bit of space currently for
future extensibility. This isn't really a problem and if this bothers
us we can just send a follow-up pull request during this cycle.
listmount() is given a 64bit mount id via mnt_id_req just as
statmount(). It takes a buffer and a size to return an array of the
64bit ids of the child mounts of the requested mount. Userspace can
thus choose to either retrieve child mounts for a mount in batches or
iterate through the child mounts. For most use-cases it will be
sufficient to just leave space for a few child mounts. But for big
mount tables having an iterator is really helpful. Iterating through a
mount table works by setting @param in mnt_id_req to the mount id of
the last child mount retrieved in the previous listmount() call"
Link: https://lwn.net/Articles/934469 [1]
Link: https://lwn.net/Articles/829212 [2]
Link: https://lwn.net/Articles/950569 [3]
* tag 'vfs-6.8.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
add selftest for statmount/listmount
fs: keep struct mnt_id_req extensible
wire up syscalls for statmount/listmount
add listmount(2) syscall
statmount: simplify string option retrieval
statmount: simplify numeric option retrieval
add statmount(2) syscall
namespace: extract show_path() helper
mounts: keep list of mounts in an rbtree
add unique mount ID
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Merge tag 'vfs-6.8.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull misc vfs updates from Christian Brauner:
"This contains the usual miscellaneous features, cleanups, and fixes
for vfs and individual fses.
Features:
- Add Jan Kara as VFS reviewer
- Show correct device and inode numbers in proc/<pid>/maps for vma
files on stacked filesystems. This is now easily doable thanks to
the backing file work from the last cycles. This comes with
selftests
Cleanups:
- Remove a redundant might_sleep() from wait_on_inode()
- Initialize pointer with NULL, not 0
- Clarify comment on access_override_creds()
- Rework and simplify eventfd_signal() and eventfd_signal_mask()
helpers
- Process aio completions in batches to avoid needless wakeups
- Completely decouple struct mnt_idmap from namespaces. We now only
keep the actual idmapping around and don't stash references to
namespaces
- Reformat maintainer entries to indicate that a given subsystem
belongs to fs/
- Simplify fput() for files that were never opened
- Get rid of various pointless file helpers
- Rename various file helpers
- Rename struct file members after SLAB_TYPESAFE_BY_RCU switch from
last cycle
- Make relatime_need_update() return bool
- Use GFP_KERNEL instead of GFP_USER when allocating superblocks
- Replace deprecated ida_simple_*() calls with their current ida_*()
counterparts
Fixes:
- Fix comments on user namespace id mapping helpers. They aren't
kernel doc comments so they shouldn't be using /**
- s/Retuns/Returns/g in various places
- Add missing parameter documentation on can_move_mount_beneath()
- Rename i_mapping->private_data to i_mapping->i_private_data
- Fix a false-positive lockdep warning in pipe_write() for watch
queues
- Improve __fget_files_rcu() code generation to improve performance
- Only notify writer that pipe resizing has finished after setting
pipe->max_usage otherwise writers are never notified that the pipe
has been resized and hang
- Fix some kernel docs in hfsplus
- s/passs/pass/g in various places
- Fix kernel docs in ntfs
- Fix kcalloc() arguments order reported by gcc 14
- Fix uninitialized value in reiserfs"
* tag 'vfs-6.8.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (36 commits)
reiserfs: fix uninit-value in comp_keys
watch_queue: fix kcalloc() arguments order
ntfs: dir.c: fix kernel-doc function parameter warnings
fs: fix doc comment typo fs tree wide
selftests/overlayfs: verify device and inode numbers in /proc/pid/maps
fs/proc: show correct device and inode numbers in /proc/pid/maps
eventfd: Remove usage of the deprecated ida_simple_xx() API
fs: super: use GFP_KERNEL instead of GFP_USER for super block allocation
fs/hfsplus: wrapper.c: fix kernel-doc warnings
fs: add Jan Kara as reviewer
fs/inode: Make relatime_need_update return bool
pipe: wakeup wr_wait after setting max_usage
file: remove __receive_fd()
file: stop exposing receive_fd_user()
fs: replace f_rcuhead with f_task_work
file: remove pointless wrapper
file: s/close_fd_get_file()/file_close_fd()/g
Improve __fget_files_rcu() code generation (and thus __fget_light())
file: massage cleanup of files that failed to open
fs/pipe: Fix lockdep false-positive in watchqueue pipe_write()
...
- Guard KVM-on-HyperV's range-based TLB flush hooks with an #ifdef on
CONFIG_HYPERV as a minor optimization, and to self-document the code.
- Add CONFIG_KVM_HYPERV to allow disabling KVM support for HyperV "emulation"
at build time.
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Merge tag 'kvm-x86-hyperv-6.8' of https://github.com/kvm-x86/linux into HEAD
KVM x86 Hyper-V changes for 6.8:
- Guard KVM-on-HyperV's range-based TLB flush hooks with an #ifdef on
CONFIG_HYPERV as a minor optimization, and to self-document the code.
- Add CONFIG_KVM_HYPERV to allow disabling KVM support for HyperV "emulation"
at build time.
- LPA2 support, adding 52bit IPA/PA capability for 4kB and 16kB
base granule sizes. Branch shared with the arm64 tree.
- Large Fine-Grained Trap rework, bringing some sanity to the
feature, although there is more to come. This comes with
a prefix branch shared with the arm64 tree.
- Some additional Nested Virtualization groundwork, mostly
introducing the NV2 VNCR support and retargetting the NV
support to that version of the architecture.
- A small set of vgic fixes and associated cleanups.
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Merge tag 'kvmarm-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 updates for Linux 6.8
- LPA2 support, adding 52bit IPA/PA capability for 4kB and 16kB
base granule sizes. Branch shared with the arm64 tree.
- Large Fine-Grained Trap rework, bringing some sanity to the
feature, although there is more to come. This comes with
a prefix branch shared with the arm64 tree.
- Some additional Nested Virtualization groundwork, mostly
introducing the NV2 VNCR support and retargetting the NV
support to that version of the architecture.
- A small set of vgic fixes and associated cleanups.
This is a relatively quiet release, there's a lot of driver specific
changes and the usual high level of activity in the SOF core but the
one big core change was Mormioto-san's work to support more N:M
CPU:CODEC mapping cases. Highlights include:
- Enhanced support for N:M CPU:CODEC mappings in the core and in
audio-graph-card2.
- Support for falling back to older SOF IPC versions where firmware for
new versions is not available.
- Support for notification of control changes generated by SOF firmware
with IPC4.
- Device tree support for describing parts of the card which can be
active over suspend (for very low power playback or wake word use
cases).
- ACPI parsing support for the ES83xx driver, reducing the number of
quirks neede for x86 systems.
- Support for more AMD and Intel systems, NXP i.MX8m MICFIL, Qualcomm
SM8250, SM8550, SM8650 and X1E80100.
- Removal of Freescale MPC8610 support, the SoC is no longer supported
by Linux.
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Merge tag 'asoc-v6.8' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v6.8
This is a relatively quiet release, there's a lot of driver specific
changes and the usual high level of activity in the SOF core but the
one big core change was Mormioto-san's work to support more N:M
CPU:CODEC mapping cases. Highlights include:
- Enhanced support for N:M CPU:CODEC mappings in the core and in
audio-graph-card2.
- Support for falling back to older SOF IPC versions where firmware for
new versions is not available.
- Support for notification of control changes generated by SOF firmware
with IPC4.
- Device tree support for describing parts of the card which can be
active over suspend (for very low power playback or wake word use
cases).
- ACPI parsing support for the ES83xx driver, reducing the number of
quirks neede for x86 systems.
- Support for more AMD and Intel systems, NXP i.MX8m MICFIL, Qualcomm
SM8250, SM8550, SM8650 and X1E80100.
- Removal of Freescale MPC8610 support, the SoC is no longer supported
by Linux.
Commit ba24ea1291 ("net/sched: Retire ipt action") removed the ipt action
but not the testcases. This patch removes the outstanding tdc tests.
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The expression "source ../lib.sh" added to net/forwarding/lib.sh in commit
25ae948b44 ("selftests/net: add lib.sh") does not work for tests outside
net/forwarding which source net/forwarding/lib.sh (1). It also does not
work in some cases where only a subset of tests are exported (2).
Avoid the problems mentioned above by replacing the faulty expression with
a copy of the content from net/lib.sh which is used by files under
net/forwarding.
A more thorough solution which avoids duplicating content between
net/lib.sh and net/forwarding/lib.sh has been posted here:
https://lore.kernel.org/netdev/20231222135836.992841-1-bpoirier@nvidia.com/
The approach in the current patch is a stopgap solution to avoid submitting
large changes at the eleventh hour of this development cycle.
Example of problem 1)
tools/testing/selftests/drivers/net/bonding$ ./dev_addr_lists.sh
./net_forwarding_lib.sh: line 41: ../lib.sh: No such file or directory
TEST: bonding cleanup mode active-backup [ OK ]
TEST: bonding cleanup mode 802.3ad [ OK ]
TEST: bonding LACPDU multicast address to slave (from bond down) [ OK ]
TEST: bonding LACPDU multicast address to slave (from bond up) [ OK ]
An error message is printed but since the test does not use functions from
net/lib.sh, the test results are not affected.
Example of problem 2)
tools/testing/selftests$ make install TARGETS="net/forwarding"
tools/testing/selftests$ cd kselftest_install/net/forwarding/
tools/testing/selftests/kselftest_install/net/forwarding$ ./pedit_ip.sh veth{0..3}
lib.sh: line 41: ../lib.sh: No such file or directory
TEST: ping [ OK ]
TEST: ping6 [ OK ]
./pedit_ip.sh: line 135: busywait: command not found
TEST: dev veth1 ingress pedit ip src set 198.51.100.1 [FAIL]
Expected to get 10 packets, but got .
./pedit_ip.sh: line 135: busywait: command not found
TEST: dev veth2 egress pedit ip src set 198.51.100.1 [FAIL]
Expected to get 10 packets, but got .
./pedit_ip.sh: line 135: busywait: command not found
TEST: dev veth1 ingress pedit ip dst set 198.51.100.1 [FAIL]
Expected to get 10 packets, but got .
./pedit_ip.sh: line 135: busywait: command not found
TEST: dev veth2 egress pedit ip dst set 198.51.100.1 [FAIL]
Expected to get 10 packets, but got .
./pedit_ip.sh: line 135: busywait: command not found
TEST: dev veth1 ingress pedit ip6 src set 2001:db8:2::1 [FAIL]
Expected to get 10 packets, but got .
./pedit_ip.sh: line 135: busywait: command not found
TEST: dev veth2 egress pedit ip6 src set 2001:db8:2::1 [FAIL]
Expected to get 10 packets, but got .
./pedit_ip.sh: line 135: busywait: command not found
TEST: dev veth1 ingress pedit ip6 dst set 2001:db8:2::1 [FAIL]
Expected to get 10 packets, but got .
./pedit_ip.sh: line 135: busywait: command not found
TEST: dev veth2 egress pedit ip6 dst set 2001:db8:2::1 [FAIL]
Expected to get 10 packets, but got .
In this case, the test results are affected.
Fixes: 25ae948b44 ("selftests/net: add lib.sh")
Suggested-by: Ido Schimmel <idosch@nvidia.com>
Suggested-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Tested-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Benjamin Poirier <bpoirier@nvidia.com>
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://lore.kernel.org/r/20240104141109.100672-1-bpoirier@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:
====================
pull-request: bpf-next 2024-01-05
We've added 40 non-merge commits during the last 2 day(s) which contain
a total of 73 files changed, 1526 insertions(+), 951 deletions(-).
The main changes are:
1) Fix a memory leak when streaming AF_UNIX sockets were inserted
into multiple sockmap slots/maps, from John Fastabend.
2) Fix gotol in s390 BPF JIT with large offsets, from Ilya Leoshkevich.
3) Fix reattachment branch in bpf_tracing_prog_attach() and reject
the request if there is no valid attach_btf, from Jiri Olsa.
4) Remove deprecated bpfilter kernel leftovers given the project
is developed in user space (https://github.com/facebook/bpfilter),
from Quentin Deslandes.
5) Relax tracing BPF program recursive attach rules given right now
it is not possible to create tracing program call cycles,
from Dmitrii Dolgov.
6) Fix excessive memory consumption for the bpf_global_percpu_ma
for systems with a large number of CPUs, from Yonghong Song.
7) Small x86 BPF JIT cleanup to reuse emit_nops instead of open-coding
memcpy of x86_nops, from Leon Hwang.
8) Follow-up for libbpf to support __arg_ctx global function argument tag
semantics to complement the merged kernel side, from Andrii Nakryiko.
9) Introduce "volatile compare" macros for BPF selftests in order
to make the latter more robust against compiler optimization,
from Alexei Starovoitov.
10) Small simplification in verifier's size checking of helper accesses
along with additional selftests, from Andrei Matei.
* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (40 commits)
selftests/bpf: Test re-attachment fix for bpf_tracing_prog_attach
bpf: Fix re-attachment branch in bpf_tracing_prog_attach
selftests/bpf: Add test for recursive attachment of tracing progs
bpf: Relax tracing prog recursive attach rules
bpf, x86: Use emit_nops to replace memcpy x86_nops
selftests/bpf: Test gotol with large offsets
selftests/bpf: Double the size of test_loader log
s390/bpf: Fix gotol with large offsets
bpfilter: remove bpfilter
bpf: Remove unnecessary cpu == 0 check in memalloc
selftests/bpf: add __arg_ctx BTF rewrite test
selftests/bpf: add arg:ctx cases to test_global_funcs tests
libbpf: implement __arg_ctx fallback logic
libbpf: move BTF loading step after relocation step
libbpf: move exception callbacks assignment logic into relocation step
libbpf: use stable map placeholder FDs
libbpf: don't rely on map->fd as an indicator of map being created
libbpf: use explicit map reuse flag to skip map creation steps
libbpf: make uniform use of btf__fd() accessor inside libbpf
selftests/bpf: Add a selftest with > 512-byte percpu allocation size
...
====================
Link: https://lore.kernel.org/r/20240105170105.21070-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add a test for UFFDIO_MOVE ioctl operating on a hugepage which has to be
split because destination is marked with MADV_NOHUGEPAGE. With this we
cover all 3 cases: normal page move, hugepage move, hugepage splitting
before move.
Link: https://lkml.kernel.org/r/20231230025636.2477429-1-surenb@google.com
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: Brian Geffon <bgeffon@google.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jann Horn <jannh@google.com>
Cc: Kalesh Singh <kaleshsingh@google.com>
Cc: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Lokesh Gidra <lokeshgidra@google.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Nicolas Geoffray <ngeoffray@google.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: ZhangPeng <zhangpeng362@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
The test depends on writing to nr_hugepages which isn't possible without
root privileges. So skip the test in this case.
Link: https://lkml.kernel.org/r/20240101083614.1076768-2-usama.anjum@collabora.com
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Conform the layout, informational and status messages to TAP. No
functional change is intended other than the layout of output messages.
Link: https://lkml.kernel.org/r/20240101083614.1076768-1-usama.anjum@collabora.com
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Conform the layout, informational and status messages to TAP. No
functional change is intended other than the layout of output messages.
Link: https://lkml.kernel.org/r/20240102053223.2099572-1-usama.anjum@collabora.com
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Conform the layout, informational and status messages to TAP. No
functional change is intended other than the layout of output messages.
Link: https://lkml.kernel.org/r/20240102053807.2114200-1-usama.anjum@collabora.com
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Conform the layout, informational and status messages to TAP. No
functional change is intended other than the layout of output messages.
Link: https://lkml.kernel.org/r/20240102081919.2325570-1-usama.anjum@collabora.com
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Vitaly Kuznetsov