The BCM4349B1, aka CYW/BCM89359, is a WiFi+BT chip and its Bluetooth
portion can be controlled over serial.
Two subversions are added for the chip, because ROM firmware reports
002.002.013 (at least for the chips I have here), while depending on
patchram firmware revision, either 002.002.013 or 002.002.014 is
reported.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
The BCM4349B1, aka CYW/BCM89359, is a WiFi+BT chip and its Bluetooth
portion can be controlled over serial.
Extend the binding with its DT compatible.
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
When HCI_USERCHANNEL is used, unregister the suspend notifier when
binding and register when releasing. The userchannel socket should be
left alone after open is completed.
Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
When a userchannel socket is released, we should check whether the hdev
is already unregistered before sending out an IndexAdded.
Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
As platform_driver_register() could fail, it should be better
to deal with the return value in order to maintain the code
consisitency.
Fixes: 1ab1f239bf ("Bluetooth: hci_intel: Add support for platform driver")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
If a hardware error occurs and the connections are flushed without a
disconnection_complete event being signaled, the temporary linkkeys are
not flushed.
This change ensures that any outstanding flushable linkkeys are flushed
when the connection are flushed from the hash table.
Additionally, this also makes use of test_and_clear_bit to avoid
multiple attempts to delete the link key that's already been flushed.
Signed-off-by: Alain Michaud <alainm@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Use the presence of a DT property, "brcm,requires-autobaud-mode", to enable
startup in autobaud mode. If the property is present, the device is started
in autobaud mode by asserting RTS (BT_UART_CTS_N) prior to powering on the
device.
Also prevent the use of unsupported commands for devices started in
autobaud mode. Only a limited subset of HCI commands are supported in
autobaud mode.
Some devices (e.g. CYW5557x) require autobaud mode to enable FW loading.
Autobaud mode can also be required on some boards where the controller
device is using a non-standard baud rate in normal mode when first powered
on.
Signed-off-by: Hakan Jansson <hakan.jansson@infineon.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Add property, "brcm,requires-autobaud-mode", to enable autobaud mode
selection.
Some devices (e.g. CYW5557x) require autobaud mode to enable FW loading.
Autobaud mode can also be required on some boards where the controller
device is using a non-standard baud rate when first powered on.
Signed-off-by: Hakan Jansson <hakan.jansson@infineon.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This fixes the return value of qca_wakeup(), since
.wakeup work inversely with original .prevent_wake.
Fixes: 4539ca67fe (Bluetooth: Rename driver .prevent_wake to .wakeup)
Signed-off-by: Sai Teja Aluvala <quic_saluvala@quicinc.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Previous releases - regressions:
- tcp/udp: make early_demux back namespacified.
- dsa: fix issues with vlan_filtering_is_global
Previous releases - always broken:
- ip: fix data-races around ipv4_net_table (round 2, 3 & 4)
- amt: fix validation and synchronization bugs
- can: fix detection of mcp251863
- eth: iavf: fix handling of dummy receive descriptors
- eth: lan966x: fix issues with MAC table
- eth: stmmac: dwmac-mediatek: fix clock issue
Misc:
- dsa: update documentation
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from can.
Still no major regressions, most of the changes are still due to data
races fixes, plus the usual bunch of drivers fixes.
Previous releases - regressions:
- tcp/udp: make early_demux back namespacified.
- dsa: fix issues with vlan_filtering_is_global
Previous releases - always broken:
- ip: fix data-races around ipv4_net_table (round 2, 3 & 4)
- amt: fix validation and synchronization bugs
- can: fix detection of mcp251863
- eth: iavf: fix handling of dummy receive descriptors
- eth: lan966x: fix issues with MAC table
- eth: stmmac: dwmac-mediatek: fix clock issue
Misc:
- dsa: update documentation"
* tag 'net-5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (107 commits)
mlxsw: spectrum_router: Fix IPv4 nexthop gateway indication
net/sched: cls_api: Fix flow action initialization
tcp: Fix data-races around sysctl_tcp_max_reordering.
tcp: Fix a data-race around sysctl_tcp_abort_on_overflow.
tcp: Fix a data-race around sysctl_tcp_rfc1337.
tcp: Fix a data-race around sysctl_tcp_stdurg.
tcp: Fix a data-race around sysctl_tcp_retrans_collapse.
tcp: Fix data-races around sysctl_tcp_slow_start_after_idle.
tcp: Fix a data-race around sysctl_tcp_thin_linear_timeouts.
tcp: Fix data-races around sysctl_tcp_recovery.
tcp: Fix a data-race around sysctl_tcp_early_retrans.
tcp: Fix data-races around sysctl knobs related to SYN option.
udp: Fix a data-race around sysctl_udp_l3mdev_accept.
ip: Fix data-races around sysctl_ip_prot_sock.
ipv4: Fix data-races around sysctl_fib_multipath_hash_fields.
ipv4: Fix data-races around sysctl_fib_multipath_hash_policy.
ipv4: Fix a data-race around sysctl_fib_multipath_use_neigh.
can: rcar_canfd: Add missing of_node_put() in rcar_canfd_probe()
can: mcp251xfd: fix detection of mcp251863
Documentation: fix udp_wmem_min in ip-sysctl.rst
...
Jann reported a race between munmap() and unmap_mapping_range(), where
unmap_mapping_range() will no-op once unmap_vmas() has unlinked the
VMA; however munmap() will not yet have invalidated the TLBs.
Therefore unmap_mapping_range() will complete while there are still
(stale) TLB entries for the specified range.
Mitigate this by force flushing TLBs for VM_PFNMAP ranges.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Now that architectures are no longer allowed to override
tlb_{start,end}_vma() re-arrange code so that there is only one
implementation for each of these functions.
This much simplifies trying to figure out what they actually do.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The previous patch removed the tlb_flush_end() implementation which
used tlb_flush_range(). This means:
- csky did double invalidates, a range invalidate per vma and a full
invalidate at the end
- csky actually has range invalidates and as such the generic
tlb_flush implementation is more efficient for it.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Will Deacon <will@kernel.org>
Tested-by: Guo Ren <guoren@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Scattered across the archs are 3 basic forms of tlb_{start,end}_vma().
Provide two new MMU_GATHER_knobs to enumerate them and remove the per
arch tlb_{start,end}_vma() implementations.
- MMU_GATHER_NO_FLUSH_CACHE indicates the arch has flush_cache_range()
but does *NOT* want to call it for each VMA.
- MMU_GATHER_MERGE_VMAS indicates the arch wants to merge the
invalidate across multiple VMAs if possible.
With these it is possible to capture the three forms:
1) empty stubs;
select MMU_GATHER_NO_FLUSH_CACHE and MMU_GATHER_MERGE_VMAS
2) start: flush_cache_range(), end: empty;
select MMU_GATHER_MERGE_VMAS
3) start: flush_cache_range(), end: flush_tlb_range();
default
Obviously, if the architecture does not have flush_cache_range() then
it also doesn't need to select MMU_GATHER_NO_FLUSH_CACHE.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Will Deacon <will@kernel.org>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Currently the command 'lx-symbols' in gdb exits with the error`Function
"do_init_module" not defined in "kernel/module.c"`. This occurs because
the file kernel/module.c was moved to kernel/module/main.c.
Fix this breakage by changing the path to "kernel/module/main.c" in
LoadModuleBreakpoint.
Signed-off-by: Khalid Masum <khalid.masum.92@gmail.com>
Acked-by: Luis Chamberlain <mcgrof@kernel.org>
Fixes: cfc1d27789 ("module: Move all into module/")
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Sedat Dilek noticed that I had an extraneous semicolon at the end of a
line in the previous patch.
It's harmless, but unintentional, and while compilers just treat it as
an extra empty statement, for all I know some other tooling might warn
about it. So clean it up before other people notice too ;)
Fixes: 353f7988dd ("watchqueue: make sure to serialize 'wqueue->defunct' properly")
Reported-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Reported-by: Sedat Dilek <sedat.dilek@gmail.com>
DisplayLink ethernet devices require NTB buffers larger then 32kb
in order to run with highest performance.
This patch is changing upper limit of the rx and tx buffers.
Those buffers are initialized with CDC_NCM_NTB_DEF_SIZE_RX and
CDC_NCM_NTB_DEF_SIZE_TX which is 16kb so by default no device is
affected by increased limit.
Rx and tx buffer is increased under two conditions:
- Device need to advertise that it supports higher buffer size in
dwNtbMaxInMaxSize and dwNtbMaxOutMaxSize.
- cdc_ncm/rx_max and cdc_ncm/tx_max driver parameters must be adjusted
with udev rule or ethtool.
Summary of testing and performance results:
Tests were performed on following devices:
- DisplayLink DL-3xxx family device
- DisplayLink DL-6xxx family device
- ASUS USB-C2500 2.5G USB3 ethernet adapter
- Plugable USB3 1G USB3 ethernet adapter
- EDIMAX EU-4307 USB-C ethernet adapter
- Dell DBQBCBC064 USB-C ethernet adapter
Performance measurements were done with:
- iperf3 between two linux boxes
- http://openspeedtest.com/ instance running on local test machine
Insights from tests results:
- All except one from third party usb adapters were not affected by
increased buffer size to their advertised dwNtbOutMaxSize and
dwNtbInMaxSize.
Devices were generally reaching 912-940Mbps both download and upload.
Only EDIMAX adapter experienced decreased download size from
929Mbps to 827Mbps with iper3, with openspeedtest decrease was from
968Mbps to 886Mbps.
- DisplayLink DL-3xxx family devices experienced performance increase
with iperf3 download from 300Mbps to 870Mbps and
upload from 782Mbps to 844Mbps.
With openspeedtest download increased from 556Mbps to 873Mbps
and upload from 727Mbps to 973Mbps
- DiplayLink DL-6xxx family devices are not affected by
increased buffer size.
Signed-off-by: Łukasz Spintzyk <lukasz.spintzyk@synaptics.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20220720060518.541-2-lukasz.spintzyk@synaptics.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This improves performance and stability of
DL-3xxx/DL-5xxx/DL-6xxx device series.
Specifically prevents device from temporary network dropouts when
playing video from the web and network traffic going through is high.
Signed-off-by: Dominik Czerwik <dominik.czerwik@synaptics.com>
Signed-off-by: Łukasz Spintzyk <lukasz.spintzyk@synaptics.com>
Link: https://lore.kernel.org/r/20220720060518.541-1-lukasz.spintzyk@synaptics.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Alex Elder says:
====================
net: ipa: move configuration data files
This series moves the "ipa_data-vX.Y.c" files into a subdirectory.
The first patch adds a Makefile variable containing the list of
supported IPA versions, and uses it to simplify the way these files
are specified.
====================
Link: https://lore.kernel.org/r/20220719150827.295248-1-elder@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reduce the clutter in the main IPA source directory by creating a
new "data" subdirectory, and locating all of the configuration data
files in there.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Create a variable in the Makefile listing the IPA versions supported
by the driver. Use that to create the list of configuration data
object files used (rather than listing them all individually).
Add a SPDX license comment.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Alex Elder says:
====================
net: ipa: small transaction updates
Version 2 of this series corrects a misspelling of "outstanding"
pointed out by the netdev test bots. (For some reason I don't see
that when I run "checkpatch".) I found and fixed a second instance
of that word being misspelled as well.
This series includes three changes to the transaction code. The
first adds a new transaction list that represents a distinct state
that has not been maintained. The second moves a field in the
transaction information structure, and reorders its initialization
a bit. The third skips a function call when it is known not to be
necessary.
The last two are very small "leftover" patches.
====================
Link: https://lore.kernel.org/r/20220719181020.372697-1-elder@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Since commit 8797972aff ("net: ipa: remove command info pool"),
we don't allocate "command info" entries for command channel
transactions. Fix a comment that seems to suggest we still do.
(Even before that commit, the comment was out of place.)
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When the IPA driver has completed its initialization and setup
stages, it emits a brief message to the log. Add a small message
that reports when it has been removed.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In gsi_trans_free(), there's no point in ipa_gsi_trans_release() if
a transaction is unused. No used TREs means no IPA layer resources
to clean up. So only call ipa_gsi_trans_release() if at least one
TRE was used.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The transaction map is really associated with the transaction pool;
move its definition earlier in the gsi_trans_info structure.
Rearrange initialization in gsi_channel_trans_init() so it
sets the tre_avail value first, then initializes the transaction
pool, and finally allocating the transaction map.
Update comments.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
We currently put a transaction on the pending list when it has
been committed. But until the channel's doorbell rings, these
transactions aren't actually "owned" by the hardware yet.
Add a new "committed" state (and list), to represent transactions
that have been committed but not yet sent to hardware. Define
"pending" to mean committed transactions that have been sent
to hardware but have not yet completed.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Create a new attribute group meant to provide a single place that
defines endpoint IDs that might be needed by user space. Not all
defined endpoints are presented, and only those that are defined
will be made visible.
The new attributes use "extended" device attributes to hold endpoint
IDs, which is a little more compact and efficient. Reimplement the
existing modem endpoint ID attribute files using common code.
Signed-off-by: Alex Elder <elder@linaro.org>
Link: https://lore.kernel.org/r/20220719191639.373249-1-elder@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This patch fixes a build error reported in the link. [0]
unix_connect.c: In function ‘unix_connect_test’:
unix_connect.c:115:55: error: expected identifier before ‘(’ token
#define offsetof(type, member) ((size_t)&((type *)0)->(member))
^
unix_connect.c:128:12: note: in expansion of macro ‘offsetof’
addrlen = offsetof(struct sockaddr_un, sun_path) + variant->len;
^~~~~~~~
We can fix this by removing () around member, but checkpatch will complain
about it, and the root cause of the build failure is that I followed the
warning and fixed this in the v2 -> v3 change of the blamed commit. [1]
CHECK: Macro argument 'member' may be better as '(member)' to avoid precedence issues
#33: FILE: tools/testing/selftests/net/af_unix/unix_connect.c:115:
+#define offsetof(type, member) ((size_t)&((type *)0)->member)
To avoid this warning, let's use offsetof() defined in stddef.h instead.
[0]: https://lore.kernel.org/linux-mm/202207182205.FrkMeDZT-lkp@intel.com/
[1]: https://lore.kernel.org/netdev/20220702154818.66761-1-kuniyu@amazon.com/
Fixes: e95ab1d852 ("selftests: net: af_unix: Test connect() with different netns.")
Reported-by: kernel test robot <lkp@intel.com>
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://lore.kernel.org/r/20220720005750.16600-1-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Pablo Neira Ayuso says:
====================
Netfilter/IPVS updates for net-next
The following patchset contains Netfilter/IPVS updates for net-next:
1) Simplify nf_ct_get_tuple(), from Jackie Liu.
2) Add format to request_module() call, from Bill Wendling.
3) Add /proc/net/stats/nf_flowtable to monitor in-flight pending
hardware offload objects to be processed, from Vlad Buslov.
4) Missing rcu annotation and accessors in the netfilter tree,
from Florian Westphal.
5) Merge h323 conntrack helper nat hooks into single object,
also from Florian.
6) A batch of update to fix sparse warnings treewide,
from Florian Westphal.
7) Move nft_cmp_fast_mask() where it used, from Florian.
8) Missing const in nf_nat_initialized(), from James Yonan.
9) Use bitmap API for Maglev IPVS scheduler, from Christophe Jaillet.
10) Use refcount_inc instead of _inc_not_zero in flowtable,
from Florian Westphal.
11) Remove pr_debug in xt_TPROXY, from Nathan Cancellor.
* git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next:
netfilter: xt_TPROXY: remove pr_debug invocations
netfilter: flowtable: prefer refcount_inc
netfilter: ipvs: Use the bitmap API to allocate bitmaps
netfilter: nf_nat: in nf_nat_initialized(), use const struct nf_conn *
netfilter: nf_tables: move nft_cmp_fast_mask to where its used
netfilter: nf_tables: use correct integer types
netfilter: nf_tables: add and use BE register load-store helpers
netfilter: nf_tables: use the correct get/put helpers
netfilter: x_tables: use correct integer types
netfilter: nfnetlink: add missing __be16 cast
netfilter: nft_set_bitmap: Fix spelling mistake
netfilter: h323: merge nat hook pointers into one
netfilter: nf_conntrack: use rcu accessors where needed
netfilter: nf_conntrack: add missing __rcu annotations
netfilter: nf_flow_table: count pending offload workqueue tasks
net/sched: act_ct: set 'net' pointer when creating new nf_flow_table
netfilter: conntrack: use correct format characters
netfilter: conntrack: use fallthrough to cleanup
====================
Link: https://lore.kernel.org/r/20220720230754.209053-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
1) Add resiliency for lost completions for PTP TX port timestamp
2) Report Header-data split state via ethtool
3) Decouple HTB code from main regular TX code
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Merge tag 'mlx5-updates-2022-07-17' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
mlx5-updates-2022-07-17
1) Add resiliency for lost completions for PTP TX port timestamp
2) Report Header-data split state via ethtool
3) Decouple HTB code from main regular TX code
* tag 'mlx5-updates-2022-07-17' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux:
net/mlx5: CT: Remove warning of ignore_flow_level support for non PF
net/mlx5e: Add resiliency for PTP TX port timestamp
net/mlx5: Expose ts_cqe_metadata_size2wqe_counter
net/mlx5e: HTB, move htb functions to a new file
net/mlx5e: HTB, change functions name to follow convention
net/mlx5e: HTB, remove priv from htb function calls
net/mlx5e: HTB, hide and dynamically allocate mlx5e_htb structure
net/mlx5e: HTB, move stats and max_sqs to priv
net/mlx5e: HTB, move section comment to the right place
net/mlx5e: HTB, move ids to selq_params struct
net/mlx5e: HTB, reduce visibility of htb functions
net/mlx5e: Fix mqprio_rl handling on devlink reload
net/mlx5e: Report header-data split state through ethtool
====================
Link: https://lore.kernel.org/r/20220719203529.51151-1-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
pr_debug calls are no longer needed in this file.
Pablo suggested "a patch to remove these pr_debug calls". This patch has
some other beneficial collateral as it also silences multiple Clang
-Wformat warnings that were present in the pr_debug calls.
diff from v1 -> v2:
* converted if statement one-liner style
* x == NULL is now !x
Suggested-by: Pablo Neira Ayuso <pablo@netfilter.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Justin Stitt <justinstitt@google.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
With refcount_inc_not_zero, we'd also need a smp_rmb or similar,
followed by a test of the CONFIRMED bit.
However, the ct pointer is taken from skb->_nfct, its refcount must
not be 0 (else, we'd already have a use-after-free bug).
Use refcount_inc() instead to clarify the ct refcount is expected to
be at least 1.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Use bitmap_zalloc()/bitmap_free() instead of hand-writing them.
It is less verbose and it improves the semantic.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Julian Anastasov <ja@ssi.bg>
Acked-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
When the pipe is closed, we mark the associated watchqueue defunct by
calling watch_queue_clear(). However, while that is protected by the
watchqueue lock, new watchqueue entries aren't actually added under that
lock at all: they use the pipe->rd_wait.lock instead, and looking up
that pipe happens without any locking.
The watchqueue code uses the RCU read-side section to make sure that the
wqueue entry itself hasn't disappeared, but that does not protect the
pipe_info in any way.
So make sure to actually hold the wqueue lock when posting watch events,
properly serializing against the pipe being torn down.
Reported-by: Noam Rathaus <noamr@ssd-disclosure.com>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The lockdown LSM is primarily used in conjunction with UEFI Secure Boot.
This LSM may also be used on machines without UEFI. It can also be
enabled when UEFI Secure Boot is disabled. One of lockdown's features
is to prevent kexec from loading untrusted kernels. Lockdown can be
enabled through a bootparam or after the kernel has booted through
securityfs.
If IMA appraisal is used with the "ima_appraise=log" boot param,
lockdown can be defeated with kexec on any machine when Secure Boot is
disabled or unavailable. IMA prevents setting "ima_appraise=log" from
the boot param when Secure Boot is enabled, but this does not cover
cases where lockdown is used without Secure Boot.
To defeat lockdown, boot without Secure Boot and add ima_appraise=log to
the kernel command line; then:
$ echo "integrity" > /sys/kernel/security/lockdown
$ echo "appraise func=KEXEC_KERNEL_CHECK appraise_type=imasig" > \
/sys/kernel/security/ima/policy
$ kexec -ls unsigned-kernel
Add a call to verify ima appraisal is set to "enforce" whenever lockdown
is enabled. This fixes CVE-2022-21505.
Cc: stable@vger.kernel.org
Fixes: 29d3c1c8df ("kexec: Allow kexec_file() with appropriate IMA policy when locked down")
Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
Acked-by: Mimi Zohar <zohar@linux.ibm.com>
Reviewed-by: John Haxby <john.haxby@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Merge tag 'linux-can-fixes-for-5.19-20220720' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can
Marc Kleine-Budde says:
====================
this is a pull request of 2 patches for net/master.
The first patch is by me and fixes the detection of the mcp251863 in
the mcp251xfd driver.
The last patch is by Liang He and adds a missing of_node_put() in the
rcar_canfd driver.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
When a GSI channel is initially allocated, and after it has been
reset, the hardware assumes its ring index is 0. And although we
do initialize channels this way, the comments in the IPA code don't
really explain this. For event rings, it doesn't matter what value
we use initially, so using 0 is just fine.
Add some information about the assumptions made by hardware above
the definition of the gsi_ring structure in "gsi.h".
Zero the index field for all rings (channel and event) when the ring
is allocated. As a result, that function initializes all fields in
the structure.
Stop zeroing the index the top of gsi_channel_program(). Initially
we'll use the index value set when the channel ring was allocated.
And we'll explicitly zero the index value in gsi_channel_reset()
before programming the hardware, adding a comment explaining why
it's required.
For event rings, use the index initialized by gsi_ring_alloc()
rather than 0 when ringing the doorbell in gsi_evt_ring_program().
(It'll still be zero, but we won't assume that to be the case.)
Use a local variable in gsi_evt_ring_program() that represents the
address of the event ring's ring structure.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
mlxsw needs to distinguish nexthops with a gateway from connected
nexthops in order to write the former to the adjacency table of the
device. The check used to rely on the fact that nexthops with a gateway
have a 'link' scope whereas connected nexthops have a 'host' scope. This
is no longer correct after commit 747c143072 ("ip: fix dflt addr
selection for connected nexthop").
Fix that by instead checking the address family of the gateway IP. This
is a more direct way and also consistent with the IPv6 counterpart in
mlxsw_sp_rt6_is_gateway().
Cc: stable@vger.kernel.org
Fixes: 747c143072 ("ip: fix dflt addr selection for connected nexthop")
Fixes: 597cfe4fc3 ("nexthop: Add support for IPv4 nexthops")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The cited commit refactored the flow action initialization sequence to
use an interface method when translating tc action instances to flow
offload objects. The refactored version skips the initialization of the
generic flow action attributes for tc actions, such as pedit, that allocate
more than one offload entry. This can cause potential issues for drivers
mapping flow action ids.
Populate the generic flow action fields for all the flow action entries.
Fixes: c54e1d920f ("flow_offload: add ops to tc_action_ops for flow action setup")
Signed-off-by: Oz Shlomo <ozsh@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
----
v1 -> v2:
- coalese the generic flow action fields initialization to a single loop
Reviewed-by: Baowen Zheng <baowen.zheng@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
For SFP port prestera driver will use kernel
phylink infrastucture to configure port mode based on
the module that has beed inserted
Co-developed-by: Yevhen Orlov <yevhen.orlov@plvision.eu>
Signed-off-by: Yevhen Orlov <yevhen.orlov@plvision.eu>
Co-developed-by: Taras Chornyi <taras.chornyi@plvision.eu>
Signed-off-by: Taras Chornyi <taras.chornyi@plvision.eu>
Signed-off-by: Oleksandr Mazur <oleksandr.mazur@plvision.eu>
Signed-off-by: David S. Miller <davem@davemloft.net>
Some tools (e.g. libxdp) use that information.
Signed-off-by: Andrey Turkin <andrey.turkin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'linux-can-next-for-5.20-20220720' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next
Marc Kleine-Budde says:
====================
this is a pull request of 29 patches for net-next/master.
The first 6 patches target the slcan driver. Dan Carpenter contributes
a hardening patch, followed by 5 cleanup patches.
Biju Das contributes 5 patches to prepare the sja1000 driver to
support the Renesas RZ/N1 SJA1000 CAN controller.
Dario Binacchi's patch for the slcan driver fixes a sleep with held
spin lock.
Another patch by Dario Binacchi fixes a wrong comment in the c_can
driver.
Pavel Pisa updates the CTU CAN FD IP core registers.
Stephane Grosjean contributes 3 patches to the peak_usb driver for
cleanups and support of a new MCU.
The last 12 patches are by Vincent Mailhol, they fix and improve the
txerr and rxerr reporting in all CAN drivers.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Kuniyuki Iwashima says:
====================
sysctl: Fix data-races around ipv4_net_table (Round 4).
This series fixes data-races around 17 knobs after fib_multipath_use_neigh
in ipv4_net_table.
tcp_fack was skipped because it's obsolete and there's no readers.
So, round 5 will start with tcp_dsack, 2 rounds left for 27 knobs.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
While reading sysctl_tcp_max_reordering, it can be changed
concurrently. Thus, we need to add READ_ONCE() to its readers.
Fixes: dca145ffaa ("tcp: allow for bigger reordering level")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
