Leases don't currently work correctly on kcephfs, as they are not broken
when caps are revoked. They could eventually be implemented similarly to
how we did them in libcephfs, but for now don't allow them.
[ idryomov: no need for simple_nosetlease() in ceph_dir_fops and
ceph_snapdir_fops ]
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Tuan and Ulrich mentioned that they were hitting a problem on s390x,
which has a 32-bit ino_t value, even though it's a 64-bit arch (for
historical reasons).
I think the current handling of inode numbers in the ceph driver is
wrong. It tries to use 32-bit inode numbers on 32-bit arches, but that's
actually not a problem. 32-bit arches can deal with 64-bit inode numbers
just fine when userland code is compiled with LFS support (the common
case these days).
What we really want to do is just use 64-bit numbers everywhere, unless
someone has mounted with the ino32 mount option. In that case, we want
to ensure that we hash the inode number down to something that will fit
in 32 bits before presenting the value to userland.
Add new helper functions that do this, and only do the conversion before
presenting these values to userland in getattr and readdir.
The inode table hashvalue is changed to just cast the inode number to
unsigned long, as low-order bits are the most likely to vary anyway.
While it's not strictly required, we do want to put something in
inode->i_ino. Instead of basing it on BITS_PER_LONG, however, base it on
the size of the ino_t type.
NOTE: This is a user-visible change on 32-bit arches:
1/ inode numbers will be seen to have changed between kernel versions.
32-bit arches will see large inode numbers now instead of the hashed
ones they saw before.
2/ any really old software not built with LFS support may start failing
stat() calls with -EOVERFLOW on inode numbers >2^32. Nothing much we
can do about these, but hopefully the intersection of people running
such code on ceph will be very small.
The workaround for both problems is to mount with "-o ino32".
[ idryomov: changelog tweak ]
URL: https://tracker.ceph.com/issues/46828
Reported-by: Ulrich Weigand <Ulrich.Weigand@de.ibm.com>
Reported-and-Tested-by: Tuan Hoang1 <Tuan.Hoang1@ibm.com>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
The drm scheduler currently expects that the stop/start sequence is always
executed in the timeout handling, as the job at the head of the hardware
execution list is always removed from the ring mirror before the driver
function is called and only inserted back into the list when starting the
scheduler.
This adds some unnecessary overhead if the timeout handler determines
that the GPU is still executing jobs normally and just wished to extend
the timeout, but a better solution requires a major rearchitecture of the
scheduler, which is not applicable as a fix.
Fixes: 135517d356 ("drm/scheduler: Avoid accessing freed bad job.")
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Tested-by: Russell King <rmk+kernel@armlinux.org.uk>
It looks like that this GPU core triggers an abort when
reading VIVS_HI_CHIP_PRODUCT_ID and/or VIVS_HI_CHIP_ECO_ID.
I looked at different versions of Vivante's kernel driver and did
not found anything about this issue or what feature flag can be
used. So go the simplest route and do not read these two registers
on the affected GPU core.
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reported-by: Josua Mayer <josua.mayer@jm0.eu>
Fixes: 815e45bbd4 ("drm/etnaviv: determine product, customer and eco id")
Cc: stable@vger.kernel.org
Tested-by: Josua Mayer <josua.mayer@jm0.eu>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
There could be instances where a system stall prevents the timesync
packets to be consumed. And this might lead to more than one packet
pending in the ring buffer. Current code empties one packet per callback
and it might be a stale one. So drain all the packets from ring buffer
on each callback.
Signed-off-by: Vineeth Pillai <viremana@linux.microsoft.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/20200821152849.99517-1-viremana@linux.microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
If for any reason, host timesync messages were not processed by
the guest, hv_ptp_gettime() returns a stale value and the
caller (clock_gettime, PTP ioctl etc) has no means to know this
now. Return an error so that the caller knows about this.
Signed-off-by: Vineeth Pillai <viremana@linux.microsoft.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/20200821152523.99364-1-viremana@linux.microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
The pdev.mfd_cell is released by platform_device_release(), which is
invoked by platform_device_unregister(). Hence mfd_remove_devices_fn()
shouldn't release the cell variable. The double-free bug is reported KASAN
during of MFD driver module removal.
Fixes: 466a62d764 ("mfd: core: Make a best effort attempt to match devices with the correct of_nodes")
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
When a log flush fails due to io errors, it signals the failure but does
not clean up after itself very well. This is because buffers are added to
the transaction tr_buf and tr_databuf queue, but the io error causes
gfs2_log_flush to bypass the "after_commit" functions responsible for
dequeueing the bd elements. If the bd elements are added to the ail list
before the error, function ail_drain takes care of dequeueing them.
But if they haven't gotten that far, the elements are forgotten and
make the transactions unable to be freed.
This patch introduces new function trans_drain which drains the bd
elements from the transaction so they can be freed properly.
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Fix documentation build warning and sentence wording:
Documentation/admin-guide/pm/intel_pstate.rst:568: WARNING: Unexpected indentation.
Fixes: f473bf398b ("cpufreq: intel_pstate: Allow raw energy performance preference value")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Since SAO support was removed from ISA 3.1, skip the
prot_sao test if PPC_FEATURE2_ARCH_3_1 is set.
Signed-off-by: Shawn Anastasio <shawn@anastas.io>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200821185558.35561-4-shawn@anastas.io
Since migration of guests using SAO to ISA 3.1 hosts may cause issues,
disable PROT_SAO in LPARs by default and introduce a new Kconfig option
PPC_PROT_SAO_LPAR to allow users to enable it if desired.
Signed-off-by: Shawn Anastasio <shawn@anastas.io>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200821185558.35561-3-shawn@anastas.io
This reverts commit 5c9fa16e8a.
Since PROT_SAO can still be useful for certain classes of software,
reintroduce it. Concerns about guest migration for LPARs using SAO
will be addressed next.
Signed-off-by: Shawn Anastasio <shawn@anastas.io>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200821185558.35561-2-shawn@anastas.io
binfmt_flat loader uses the gap between text and data to store data
segment pointers for the libraries. Even in the absence of shared
libraries it stores at least one pointer to the executable's own data
segment. Text and data can go back to back in the flat binary image and
without offsetting data segment last few instructions in the text
segment may get corrupted by the data segment pointer.
Fix it by reverting commit a2357223c5 ("binfmt_flat: don't offset the
data start").
Cc: stable@vger.kernel.org
Fixes: a2357223c5 ("binfmt_flat: don't offset the data start")
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
Add perf support for emitting extended registers for power10.
A fix for CPU hotplug on pseries, where on large/loaded systems we may not wait
long enough for the CPU to be offlined, leading to crashes.
Addition of a raw cputable entry for Power10, which is not required to boot, but
is required to make our PMU setup work correctly in guests.
Three fixes for the recent changes on 32-bit Book3S to move modules into their
own segment for strict RWX.
A fix for a recent change in our powernv PCI code that could lead to crashes.
A change to our perf interrupt accounting to avoid soft lockups when using some
events, found by syzkaller.
A change in the way we handle power loss events from the hypervisor on pseries.
We no longer immediately shut down if we're told we're running on a UPS.
A few other minor fixes.
Thanks to:
Alexey Kardashevskiy, Andreas Schwab, Aneesh Kumar K.V, Anju T Sudhakar,
Athira Rajeev, Christophe Leroy, Frederic Barrat, Greg Kurz, Kajol Jain,
Madhavan Srinivasan, Michael Neuling, Michael Roth, Nageswara R Sastry, Oliver
O'Halloran, Thiago Jung Bauermann, Vaidyanathan Srinivasan, Vasant Hegde.
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Merge tag 'powerpc-5.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Add perf support for emitting extended registers for power10.
- A fix for CPU hotplug on pseries, where on large/loaded systems we
may not wait long enough for the CPU to be offlined, leading to
crashes.
- Addition of a raw cputable entry for Power10, which is not required
to boot, but is required to make our PMU setup work correctly in
guests.
- Three fixes for the recent changes on 32-bit Book3S to move modules
into their own segment for strict RWX.
- A fix for a recent change in our powernv PCI code that could lead to
crashes.
- A change to our perf interrupt accounting to avoid soft lockups when
using some events, found by syzkaller.
- A change in the way we handle power loss events from the hypervisor
on pseries. We no longer immediately shut down if we're told we're
running on a UPS.
- A few other minor fixes.
Thanks to Alexey Kardashevskiy, Andreas Schwab, Aneesh Kumar K.V, Anju T
Sudhakar, Athira Rajeev, Christophe Leroy, Frederic Barrat, Greg Kurz,
Kajol Jain, Madhavan Srinivasan, Michael Neuling, Michael Roth,
Nageswara R Sastry, Oliver O'Halloran, Thiago Jung Bauermann,
Vaidyanathan Srinivasan, Vasant Hegde.
* tag 'powerpc-5.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/perf/hv-24x7: Move cpumask file to top folder of hv-24x7 driver
powerpc/32s: Fix module loading failure when VMALLOC_END is over 0xf0000000
powerpc/pseries: Do not initiate shutdown when system is running on UPS
powerpc/perf: Fix soft lockups due to missed interrupt accounting
powerpc/powernv/pci: Fix possible crash when releasing DMA resources
powerpc/pseries/hotplug-cpu: wait indefinitely for vCPU death
powerpc/32s: Fix is_module_segment() when MODULES_VADDR is defined
powerpc/kasan: Fix KASAN_SHADOW_START on BOOK3S_32
powerpc/fixmap: Fix the size of the early debug area
powerpc/pkeys: Fix build error with PPC_MEM_KEYS disabled
powerpc/kernel: Cleanup machine check function declarations
powerpc: Add POWER10 raw mode cputable entry
powerpc/perf: Add extended regs support for power10 platform
powerpc/perf: Add support for outputting extended regs in perf intr_regs
powerpc: Fix P10 PVR revision in /proc/cpuinfo for SMT4 cores
path and unconditionally uses LSL to retrieve the CPU number. RDPID depends
on MSR_TSX_AUX. KVM has an optmization to avoid expensive MRS read/writes
on VMENTER/EXIT. It caches the MSR values and restores them either when
leaving the run loop, on preemption or when going out to user
space. MSR_TSX_AUX is part of that lazy MSR set, so after writing the guest
value and before the lazy restore any exception using the paranoid entry
will read the guest value and use it as CPU number to retrieve the GSBASE
value for the current CPU when FSGSBASE is enabled. As RDPID is only used
in that particular entry path, there is no reason to burden VMENTER/EXIT
with two extra MSR writes. Remove the RDPID optimization, which is not even
backed by numbers from the paranoid entry path instead.
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Merge tag 'x86-urgent-2020-08-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fix from Thomas Gleixner:
"A single fix for x86 which removes the RDPID usage from the paranoid
entry path and unconditionally uses LSL to retrieve the CPU number.
RDPID depends on MSR_TSX_AUX. KVM has an optmization to avoid
expensive MRS read/writes on VMENTER/EXIT. It caches the MSR values
and restores them either when leaving the run loop, on preemption or
when going out to user space. MSR_TSX_AUX is part of that lazy MSR
set, so after writing the guest value and before the lazy restore any
exception using the paranoid entry will read the guest value and use
it as CPU number to retrieve the GSBASE value for the current CPU when
FSGSBASE is enabled. As RDPID is only used in that particular entry
path, there is no reason to burden VMENTER/EXIT with two extra MSR
writes. Remove the RDPID optimization, which is not even backed by
numbers from the paranoid entry path instead"
* tag 'x86-urgent-2020-08-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/entry/64: Do not use RDPID in paranoid entry to accomodate KVM
broken down bandwith counters.
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Merge tag 'perf-urgent-2020-08-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 perf fix from Thomas Gleixner:
"A single update for perf on x86 which has support for the broken down
bandwith counters"
* tag 'perf-urgent-2020-08-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/intel/uncore: Add BW counters for GT, IA and IO breakdown
- Enforce NX on RO data in mixed EFI mode
- Destroy workqueue in an error handling path to prevent UAF
- Stop argument parser at '--' which is the delimiter for init
- Treat a NULL command line pointer as empty instead of dereferncing it
unconditionally.
- Handle an unterminated command line correctly
- Cleanup the 32bit code leftovers and remove obsolete documentation
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Merge tag 'efi-urgent-2020-08-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI fixes from Thomas Gleixner:
- Enforce NX on RO data in mixed EFI mode
- Destroy workqueue in an error handling path to prevent UAF
- Stop argument parser at '--' which is the delimiter for init
- Treat a NULL command line pointer as empty instead of dereferncing it
unconditionally.
- Handle an unterminated command line correctly
- Cleanup the 32bit code leftovers and remove obsolete documentation
* tag 'efi-urgent-2020-08-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
Documentation: efi: remove description of efi=old_map
efi/x86: Move 32-bit code into efi_32.c
efi/libstub: Handle unterminated cmdline
efi/libstub: Handle NULL cmdline
efi/libstub: Stop parsing arguments at "--"
efi: add missed destroy_workqueue when efisubsys_init fails
efi/x86: Mark kernel rodata non-executable for mixed mode
version messed up the reload of the syscall number from pt_regs after
ptrace and seccomp which breaks syscall number rewriting.
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Merge tag 'core-urgent-2020-08-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull entry fix from Thomas Gleixner:
"A single bug fix for the common entry code.
The transcription of the x86 version messed up the reload of the
syscall number from pt_regs after ptrace and seccomp which breaks
syscall number rewriting"
* tag 'core-urgent-2020-08-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
core/entry: Respect syscall number rewrites
which lead to a recoverable error getting marked as fatal, by Tony
Luck.
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Merge tag 'edac_urgent_for_v5.9_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras
Pull EDAC fix from Borislav Petkov:
"A single fix correcting a reversed error severity determination check
which lead to a recoverable error getting marked as fatal, by Tony
Luck"
* tag 'edac_urgent_for_v5.9_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
EDAC/{i7core,sb,pnd2,skx}: Fix error event severity
Pull networking fixes from David Miller:
"Nothing earth shattering here, lots of small fixes (f.e. missing RCU
protection, bad ref counting, missing memset(), etc.) all over the
place:
1) Use get_file_rcu() in task_file iterator, from Yonghong Song.
2) There are two ways to set remote source MAC addresses in macvlan
driver, but only one of which validates things properly. Fix this.
From Alvin Šipraga.
3) Missing of_node_put() in gianfar probing, from Sumera
Priyadarsini.
4) Preserve device wanted feature bits across multiple netlink
ethtool requests, from Maxim Mikityanskiy.
5) Fix rcu_sched stall in task and task_file bpf iterators, from
Yonghong Song.
6) Avoid reset after device destroy in ena driver, from Shay
Agroskin.
7) Missing memset() in netlink policy export reallocation path, from
Johannes Berg.
8) Fix info leak in __smc_diag_dump(), from Peilin Ye.
9) Decapsulate ECN properly for ipv6 in ipv4 tunnels, from Mark
Tomlinson.
10) Fix number of data stream negotiation in SCTP, from David Laight.
11) Fix double free in connection tracker action module, from Alaa
Hleihel.
12) Don't allow empty NHA_GROUP attributes, from Nikolay Aleksandrov"
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (46 commits)
net: nexthop: don't allow empty NHA_GROUP
bpf: Fix two typos in uapi/linux/bpf.h
net: dsa: b53: check for timeout
tipc: call rcu_read_lock() in tipc_aead_encrypt_done()
net/sched: act_ct: Fix skb double-free in tcf_ct_handle_fragments() error flow
net: sctp: Fix negotiation of the number of data streams.
dt-bindings: net: renesas, ether: Improve schema validation
gre6: Fix reception with IP6_TNL_F_RCV_DSCP_COPY
hv_netvsc: Fix the queue_mapping in netvsc_vf_xmit()
hv_netvsc: Remove "unlikely" from netvsc_select_queue
bpf: selftests: global_funcs: Check err_str before strstr
bpf: xdp: Fix XDP mode when no mode flags specified
selftests/bpf: Remove test_align leftovers
tools/resolve_btfids: Fix sections with wrong alignment
net/smc: Prevent kernel-infoleak in __smc_diag_dump()
sfc: fix build warnings on 32-bit
net: phy: mscc: Fix a couple of spelling mistakes "spcified" -> "specified"
libbpf: Fix map index used in error message
net: gemini: Fix missing free_netdev() in error path of gemini_ethernet_port_probe()
net: atlantic: Use readx_poll_timeout() for large timeout
...
Don't forget to update wqe->hash_tail after cancelling a pending work
item, if it was hashed.
Cc: stable@vger.kernel.org # 5.7+
Reported-by: Dmitry Shulyak <yashulyak@gmail.com>
Fixes: 86f3cd1b58 ("io-wq: handle hashed writes in chains")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
If an application is doing reads on signalfd, and we arm the poll handler
because there's no data available, then the wakeup can recurse on the
tasks sighand->siglock as the signal delivery from task_work_add() will
use TWA_SIGNAL and that attempts to lock it again.
We can detect the signalfd case pretty easily by comparing the poll->head
wait_queue_head_t with the target task signalfd wait queue. Just use
normal task wakeup for this case.
Cc: stable@vger.kernel.org # v5.7+
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Some device drivers call libusb_clear_halt when target ep queue
is not empty. (eg. spice client connected to qemu for usb redir)
Before commit f5249461b5 ("xhci: Clear the host side toggle
manually when endpoint is soft reset"), that works well.
But now, we got the error log:
EP not empty, refuse reset
xhci_endpoint_reset failed and left ep_state's EP_SOFT_CLEAR_TOGGLE
bit still set
So all the subsequent urb sumbits to the ep will fail with the
warn log:
Can't enqueue URB while manually clearing toggle
We need to clear ep_state EP_SOFT_CLEAR_TOGGLE bit after
xhci_endpoint_reset, even if it failed.
Fixes: f5249461b5 ("xhci: Clear the host side toggle manually when endpoint is soft reset")
Cc: stable <stable@vger.kernel.org> # v4.17+
Signed-off-by: Ding Hui <dinghui@sangfor.com.cn>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20200821091549.20556-4-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Sometimes re-plugging a USB device during system sleep renders the device
useless:
[ 173.418345] xhci_hcd 0000:00:14.0: Get port status 2-4 read: 0x14203e2, return 0x10262
...
[ 176.496485] usb 2-4: Waited 2000ms for CONNECT
[ 176.496781] usb usb2-port4: status 0000.0262 after resume, -19
[ 176.497103] usb 2-4: can't resume, status -19
[ 176.497438] usb usb2-port4: logical disconnect
Because PLS equals to XDEV_RESUME, xHCI driver reports U3 to usbcore,
despite of CAS bit is flagged.
So proritize CAS over XDEV_RESUME to let usbcore handle warm-reset for
the port.
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20200821091549.20556-3-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dci is 0 based and xhci_get_ep_ctx() will do ep index increment to get
the ep context.
[rename dci to ep_index -Mathias]
Cc: stable <stable@vger.kernel.org> # v4.15+
Fixes: 02b6fdc2a1 ("usb: xhci: Add debugfs interface for xHCI driver")
Signed-off-by: Li Jun <jun.li@nxp.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20200821091549.20556-2-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
- Correct cleanup of PCI bar mapping in case of failure during
initialization.
- Several security fixes:
- Validating user addresses before mapping them
- Validating packet id (from user) before using it as index for array.
- Validating F/W file size before coping it.
- Prevent possible overflow when validating address from user in
profiler.
- Validate queue index (from user) before using it as index for array.
- Check for correct vmalloc return code
- Fix memory corruption in debugfs entry
- Fix a loop in gaudi_extract_ecc_info()
- Fix the set clock gating function in gaudi code
- Set maximum power to F/W according to the card type
- Cix incorrect check on failed workqueue create
- Correctly report error when configuring the PCI controller
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Merge tag 'misc-habanalabs-fixes-2020-08-22' of git://people.freedesktop.org/~gabbayo/linux into char-misc-linus
Oded writes:
This tag contains the following bug fixes for 5.9-rc2/3:
- Correct cleanup of PCI bar mapping in case of failure during
initialization.
- Several security fixes:
- Validating user addresses before mapping them
- Validating packet id (from user) before using it as index for array.
- Validating F/W file size before coping it.
- Prevent possible overflow when validating address from user in
profiler.
- Validate queue index (from user) before using it as index for array.
- Check for correct vmalloc return code
- Fix memory corruption in debugfs entry
- Fix a loop in gaudi_extract_ecc_info()
- Fix the set clock gating function in gaudi code
- Set maximum power to F/W according to the card type
- Cix incorrect check on failed workqueue create
- Correctly report error when configuring the PCI controller
* tag 'misc-habanalabs-fixes-2020-08-22' of git://people.freedesktop.org/~gabbayo/linux:
habanalabs: correctly report inbound pci region cfg error
habanalabs: check correct vmalloc return code
habanalabs: validate FW file size
habanalabs: fix incorrect check on failed workqueue create
habanalabs: set max power according to card type
habanalabs: proper handling of alloc size in coresight
habanalabs: set clock gating according to mask
habanalabs: verify user input in cs_ioctl_signal_wait
habanalabs: Fix a loop in gaudi_extract_ecc_info()
habanalabs: Fix memory corruption in debugfs
habanalabs: validate packet id during CB parse
habanalabs: Validate user address before mapping
habanalabs: unmap PCI bars upon iATU failure
Pull epoll fixes from Al Viro:
"Fix reference counting and clean up exit paths"
* 'work.epoll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
do_epoll_ctl(): clean the failure exits up a bit
epoll: Keep a reference on files added to the check list
When adding a new fd to an epoll, and that this new fd is an
epoll fd itself, we recursively scan the fds attached to it
to detect cycles, and add non-epool files to a "check list"
that gets subsequently parsed.
However, this check list isn't completely safe when deletions
can happen concurrently. To sidestep the issue, make sure that
a struct file placed on the check list sees its f_count increased,
ensuring that a concurrent deletion won't result in the file
disapearing from under our feet.
Cc: stable@vger.kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
The patch reorganizing the set_freq function made it so the gmu resume
doesn't always set the frequency, because a6xx_gmu_set_freq() exits early
when the frequency hasn't been changed. Note this always happens when
resuming GMU after recovering from a hang.
Use a simple workaround to prevent this from happening.
Fixes: 1f60d11423 ("drm: msm: a6xx: send opp instead of a frequency")
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Signed-off-by: Rob Clark <robdclark@chromium.org>
For production devices, the debugbus sections will typically be fused
off and empty in the gpu device coredump. But since this may contain
data like cache contents, don't capture it by default.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Backport note: maybe wait some time for the crashdec MR[1] to look for
both the old typo'd name and the corrected name to land in mesa 20.2
[1] https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6242
Fixes: 1707add815 ("drm/msm/a6xx: Add a6xx gpu state")
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
New Qualcomm firmware has changed a way it reports back the 'started'
event. Support new register values.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
- move -Wsign-compare warning from W=2 to W=3
- fix the keyword _restrict to __restrict in genksyms
- fix more bugs in qconf
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Merge tag 'kbuild-fixes-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- move -Wsign-compare warning from W=2 to W=3
- fix the keyword _restrict to __restrict in genksyms
- fix more bugs in qconf
* tag 'kbuild-fixes-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kconfig: qconf: replace deprecated QString::sprintf() with QTextStream
kconfig: qconf: remove redundant help in the info view
kconfig: qconf: remove qInfo() to get back Qt4 support
kconfig: qconf: remove unused colNr
kconfig: qconf: fix the popup menu in the ConfigInfoView window
kconfig: qconf: fix signal connection to invalid slots
genksyms: keywords: Use __restrict not _restrict
kbuild: remove redundant patterns in filter/filter-out
extract-cert: add static to local data
Makefile.extrawarn: Move sign-compare from W=2 to W=3
(currently they are parked if none of the early CPUs are affected by
this erratum).
- Add the 32-bit vdso Makefile to the vdso_install rule so that 'make
vdso_install' installs the 32-bit compat vdso when it is compiled.
- Print a warning that untrusted guests without a CPU erratum workaround
(Cortex-A57 832075) may deadlock the affected system.
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- Allow booting of late secondary CPUs affected by erratum 1418040
(currently they are parked if none of the early CPUs are affected by
this erratum).
- Add the 32-bit vdso Makefile to the vdso_install rule so that 'make
vdso_install' installs the 32-bit compat vdso when it is compiled.
- Print a warning that untrusted guests without a CPU erratum
workaround (Cortex-A57 832075) may deadlock the affected system.
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
ARM64: vdso32: Install vdso32 from vdso_install
KVM: arm64: Print warning when cpu erratum can cause guests to deadlock
arm64: Allow booting of late CPUs affected by erratum 1418040
arm64: Move handling of erratum 1418040 into C code
- Couple of fixes for storage key handling relevant for debugging.
- Add cond_resched into potentially slow subchannels scanning loop.
- Fixes for PF/VF linking and to ignore stale PCI configuration request
events.
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Merge tag 's390-5.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Vasily Gorbik:
- a couple of fixes for storage key handling relevant for debugging
- add cond_resched into potentially slow subchannels scanning loop
- fixes for PF/VF linking and to ignore stale PCI configuration request
events
* tag 's390-5.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/pci: fix PF/VF linking on hot plug
s390/pci: re-introduce zpci_remove_device()
s390/pci: fix zpci_bus_link_virtfn()
s390/ptrace: fix storage key handling
s390/runtime_instrumentation: fix storage key handling
s390/pci: ignore stale configuration request event
s390/cio: add cond_resched() in the slow_eval_known_fn() loop
* selftests fix for new binutils
* MMU notifier fix for arm64
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
- PAE and PKU bugfixes for x86
- selftests fix for new binutils
- MMU notifier fix for arm64
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: arm64: Only reschedule if MMU_NOTIFIER_RANGE_BLOCKABLE is not set
KVM: Pass MMU notifier range flags to kvm_unmap_hva_range()
kvm: x86: Toggling CR4.PKE does not load PDPTEs in PAE mode
kvm: x86: Toggling CR4.SMAP does not load PDPTEs in PAE mode
KVM: x86: fix access code passed to gva_to_gpa
selftests: kvm: Use a shorter encoding to clear RAX
23 fixes in 5 drivers (qla2xxx, ufs, scsi_debug, fcoe, zfcp). The
bulk of the changes are in qla2xxx and ufs and all are mostly small
and definitely don't impact the core.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"23 fixes in 5 drivers (qla2xxx, ufs, scsi_debug, fcoe, zfcp). The bulk
of the changes are in qla2xxx and ufs and all are mostly small and
definitely don't impact the core"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (23 commits)
Revert "scsi: qla2xxx: Disable T10-DIF feature with FC-NVMe during probe"
Revert "scsi: qla2xxx: Fix crash on qla2x00_mailbox_command"
scsi: qla2xxx: Fix null pointer access during disconnect from subsystem
scsi: qla2xxx: Check if FW supports MQ before enabling
scsi: qla2xxx: Fix WARN_ON in qla_nvme_register_hba
scsi: qla2xxx: Allow ql2xextended_error_logging special value 1 to be set anytime
scsi: qla2xxx: Reduce noisy debug message
scsi: qla2xxx: Fix login timeout
scsi: qla2xxx: Indicate correct supported speeds for Mezz card
scsi: qla2xxx: Flush I/O on zone disable
scsi: qla2xxx: Flush all sessions on zone disable
scsi: qla2xxx: Use MBX_TOV_SECONDS for mailbox command timeout values
scsi: scsi_debug: Fix scp is NULL errors
scsi: zfcp: Fix use-after-free in request timeout handlers
scsi: ufs: No need to send Abort Task if the task in DB was cleared
scsi: ufs: Clean up completed request without interrupt notification
scsi: ufs: Improve interrupt handling for shared interrupts
scsi: ufs: Fix interrupt error message for shared interrupts
scsi: ufs-pci: Add quirk for broken auto-hibernate for Intel EHL
scsi: ufs-mediatek: Fix incorrect time to wait link status
...
- Restore range parsing error check
- Workaround PCI range parsing with missing 'device_type' now required
- Correct description of 'phy-connection-type'
- Fix erroneous matching on 'snps,dw-pcie' by 'intel,lgm-pcie' schema
- A couple of grammar and whitespace fixes
- Update Shawn Guo's email
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Merge tag 'devicetree-fixes-for-5.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree fixes from Rob Herring:
"Another set of DT fixes:
- restore range parsing error check
- workaround PCI range parsing with missing 'device_type' now
required
- correct description of 'phy-connection-type'
- fix erroneous matching on 'snps,dw-pcie' by 'intel,lgm-pcie' schema
- a couple of grammar and whitespace fixes
- update Shawn Guo's email"
* tag 'devicetree-fixes-for-5.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
dt-bindings: vendor-prefixes: Remove trailing whitespace
dt-bindings: net: correct description of phy-connection-type
dt-bindings: PCI: intel,lgm-pcie: Fix matching on all snps,dw-pcie instances
of: address: Work around missing device_type property in pcie nodes
dt: writing-schema: Miscellaneous grammar fixes
dt-bindings: Use Shawn Guo's preferred e-mail for i.MX bindings
of/address: check for invalid range.cpu_addr
During inbound iATU configuration we can get errors while
configuring PCI registers, there is a certain scenario in which these
errors are not reflected and driver is loaded with wrong configuration.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
vmalloc can return different return code than NULL and a valid
pointer. We must validate it in order to dereference a non valid
pointer.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
We must validate FW size in order not to corrupt memory in case
a malicious FW file will be present in system.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
The null check on a failed workqueue create is currently null checking
hdev->cq_wq rather than the pointer hdev->cq_wq[i] and so the test
will never be true on a failed workqueue create. Fix this by checking
hdev->cq_wq[i].
Addresses-Coverity: ("Dereference before null check")
Fixes: 5574cb2194 ("habanalabs: Assign each CQ with its own work queue")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
In Gaudi, the default max power setting is different between PCI and PMC
cards. Therefore, the driver need to set the default after knowing what is
the card type.
The current code has a bug where it limits the maximum power of the PMC
card to 200W after a reset occurs.
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Allocation size can go up to 64bit but truncated to 32bit,
we should make sure it is not truncated and validate no address
overflow.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Once clock gating is set we enable clock gating according to mask,
we should also disable clock gating according to relevant bits.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
