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Invalidating the buffer memory in arch_sync_dma_for_device() for
FROM_DEVICE transfers
When using the streaming DMA API to map a buffer prior to inbound
non-coherent DMA (i.e. DMA_FROM_DEVICE), we invalidate any dirty CPU
cachelines so that they will not be written back during the transfer and
corrupt the buffer contents written by the DMA. This, however, poses two
potential problems:
(1) If the DMA transfer does not write to every byte in the buffer,
then the unwritten bytes will contain stale data once the transfer
has completed.
(2) If the buffer has a virtual alias in userspace, then stale data
may be visible via this alias during the period between performing
the cache invalidation and the DMA writes landing in memory.
Address both of these issues by cleaning (aka writing-back) the dirty
lines in arch_sync_dma_for_device(DMA_FROM_DEVICE) instead of discarding
them using invalidation.
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220606152150.GA31568@willie-the-truck
Signed-off-by: Will Deacon <will@kernel.org>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20220610151228.4562-2-will@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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Notes are better expressed with reST admonitions.
Fixes: f23b22599f8e ("Documentation/zh_CN: Add basic LoongArch documentations")
Reviewed-by: WANG Xuerui <git@xen0n.name>
Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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Notes are better expressed with reST admonitions.
Fixes: 0ea8ce61cb2c ("Documentation: LoongArch: Add basic documentations")
Reviewed-by: WANG Xuerui <git@xen0n.name>
Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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Commit c604abc3f6e ("vmlinux.lds.h: Split ELF_DETAILS from STABS_DEBUG")
splits ELF_DETAILS from STABS_DEBUG, resulting in missing ELF_DETAILS
information in LoongArch architecture, so add it.
Fixes: c604abc3f6e ("vmlinux.lds.h: Split ELF_DETAILS from STABS_DEBUG")
Signed-off-by: Youling Tang <tangyouling@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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io_arm_poll_handler() will recycle the buffer appropriately if we end
up arming poll (or if we're ready to retry), but not for the io-wq case
if we have attempted poll first.
Explicitly recycle the buffer to avoid both hanging on to it too long,
but also to avoid multiple reads grabbing the same one. This can happen
for ring mapped buffers, since it hasn't necessarily been committed.
Fixes: c7fb19428d67 ("io_uring: add support for ring mapped supplied buffers")
Link: https://github.com/axboe/liburing/issues/605
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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The code in dm-log rounds up bitset_size to 32 bits. It then uses
find_next_zero_bit_le on the allocated region. find_next_zero_bit_le
accesses the bitmap using unsigned long pointers. So, on 64-bit
architectures, it may access 4 bytes beyond the allocated size.
Fix this bug by rounding up bitset_size to BITS_PER_LONG.
This bug was found by running the lvm2 testsuite with kasan.
Fixes: 29121bd0b00e ("[PATCH] dm mirror log: bitset_size fix")
Cc: stable@vger.kernel.org
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
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Starting with the commit 63a225c9fd20, device mapper has an optimization
that it will take cheaper table lock (dm_get_live_table_fast instead of
dm_get_live_table) if the bio has REQ_NOWAIT. The bios with REQ_NOWAIT
must not block in the target request routine, if they did, we would be
blocking while holding rcu_read_lock, which is prohibited.
The targets that are suitable for REQ_NOWAIT optimization (and that don't
block in the map routine) have the flag DM_TARGET_NOWAIT set. Device
mapper will test if all the targets and all the devices in a table
support nowait (see the function dm_table_supports_nowait) and it will set
or clear the QUEUE_FLAG_NOWAIT flag on its request queue according to
this check.
There's a test in submit_bio_noacct: "if ((bio->bi_opf & REQ_NOWAIT) &&
!blk_queue_nowait(q)) goto not_supported" - this will make sure that
REQ_NOWAIT bios can't enter a request queue that doesn't support them.
This mechanism works to prevent REQ_NOWAIT bios from reaching dm targets
that don't support the REQ_NOWAIT flag (and that may block in the map
routine) - except that there is a small race condition:
submit_bio_noacct checks if the queue has the QUEUE_FLAG_NOWAIT without
holding any locks. Immediatelly after this check, the device mapper table
may be reloaded with a table that doesn't support REQ_NOWAIT (for example,
if we start moving the logical volume or if we activate a snapshot).
However the REQ_NOWAIT bio that already passed the check in
submit_bio_noacct would be sent to device mapper, where it could be
redirected to a dm target that doesn't support REQ_NOWAIT - the result is
sleeping while we hold rcu_read_lock.
In order to fix this race, we double-check if the target supports
REQ_NOWAIT while we hold the table lock (so that the table can't change
under us).
Fixes: 563a225c9fd2 ("dm: introduce dm_{get,put}_live_table_bio called from dm_submit_bio")
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
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dm_put_live_table_bio is called from the end of dm_submit_bio.
However, at this point, the bio may be already finished and the caller
may have freed the bio. Consequently, dm_put_live_table_bio accesses
the stale "bio" pointer.
Fix this bug by loading the bi_opf value and passing it to
dm_get_live_table_bio and dm_put_live_table_bio instead of the bio.
This bug was found by running the lvm2 testsuite with kasan.
Fixes: 563a225c9fd2 ("dm: introduce dm_{get,put}_live_table_bio called from dm_submit_bio")
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
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BFQ uses io_start_time_ns. That member variable is only set if I/O
statistics are enabled. Hence this patch that enables I/O statistics
at the time BFQ is associated with a request queue.
Compile-tested only.
Reported-by: Cixi Geng <cixi.geng1@unisoc.com>
Cc: Cixi Geng <cixi.geng1@unisoc.com>
Cc: Yu Kuai <yukuai3@huawei.com>
Cc: Paolo Valente <paolo.valente@unimore.it>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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This improves the symbol's description to make it easier for
people to understand what it is about.
Suggested-by: Christoph Hellwig <hch@lst.de>
Suggested-by: Philipp Tomsich <philipp.tomsich@vrull.eu>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Guo Ren <guoren@kernel.org>
Link: https://lore.kernel.org/r/20220526205646.258337-3-heiko@sntech.de
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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The variable was tracking which feature patches got applied
but that information was never actually used - and thus resulted
in a warning as well.
Drop the variable.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Guo Ren <guoren@kernel.org>
Link: https://lore.kernel.org/r/20220526205646.258337-2-heiko@sntech.de
Fixes: ff689fd21cb1 ("riscv: add RISC-V Svpbmt extension support")
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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alternatives only work correctly on non-xip-kernels and while the
selected alternative-symbol has the correct dependency the symbol
selecting it also needs that dependency.
So add the missing dependency to the T-Head errata Kconfig symbol.
Reported-by: kernel test robot <yujie.liu@intel.com>
Reviewed-by: Guo Ren <guoren@kernel.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20220526205646.258337-5-heiko@sntech.de
Fixes: a35707c3d850 ("riscv: add memory-type errata for T-Head")
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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commit 364b61818f65 ("blk-mq: clearing flush request reference in
tags->rqs[]") is added to clear the to-be-free flush request from
tags->rqs[] for avoiding use-after-free on the flush rq.
Yu Kuai reported that blk_mq_clear_flush_rq_mapping() slows down boot time
by ~8s because running scsi probe which may create and remove lots of
unpresent LUNs on megaraid-sas which uses BLK_MQ_F_TAG_HCTX_SHARED and
each request queue has lots of hw queues.
Improve the situation by not running blk_mq_clear_flush_rq_mapping if
disk isn't added when there can't be any flush request issued.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reported-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20220616014401.817001-4-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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q->elevator is referred in blk_mq_has_sqsched() without any protection,
no .q_usage_counter is held, no queue srcu and rcu read lock is held,
so potential use-after-free may be triggered.
Fix the issue by adding one queue flag for checking if the elevator
uses single queue style dispatch. Meantime the elevator feature flag
of ELEVATOR_F_MQ_AWARE isn't needed any more.
Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220616014401.817001-3-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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elevator can be tore down by sysfs switch interface or disk release, so
hold ->sysfs_lock before referring to q->elevator, then potential
use-after-free can be avoided.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20220616014401.817001-2-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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This patch prevents that test nvme/004 triggers the following:
UBSAN: array-index-out-of-bounds in block/blk-mq.h:135:9
index 512 is out of range for type 'long unsigned int [512]'
Call Trace:
show_stack+0x52/0x58
dump_stack_lvl+0x49/0x5e
dump_stack+0x10/0x12
ubsan_epilogue+0x9/0x3b
__ubsan_handle_out_of_bounds.cold+0x44/0x49
blk_mq_alloc_request_hctx+0x304/0x310
__nvme_submit_sync_cmd+0x70/0x200 [nvme_core]
nvmf_connect_io_queue+0x23e/0x2a0 [nvme_fabrics]
nvme_loop_connect_io_queues+0x8d/0xb0 [nvme_loop]
nvme_loop_create_ctrl+0x58e/0x7d0 [nvme_loop]
nvmf_create_ctrl+0x1d7/0x4d0 [nvme_fabrics]
nvmf_dev_write+0xae/0x111 [nvme_fabrics]
vfs_write+0x144/0x560
ksys_write+0xb7/0x140
__x64_sys_write+0x42/0x50
do_syscall_64+0x35/0x80
entry_SYSCALL_64_after_hwframe+0x44/0xae
Cc: Christoph Hellwig <hch@lst.de>
Cc: Ming Lei <ming.lei@redhat.com>
Fixes: 20e4d8139319 ("blk-mq: simplify queue mapping & schedule with each possisble CPU")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20220615210004.1031820-1-bvanassche@acm.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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It should return error code in error path in axienet_probe().
Fixes: 00be43a74ca2 ("net: axienet: make the 64b addresable DMA depends on 64b archectures")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20220616062917.3601-1-yangyingliang@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This reverts:
commit d5a42de8bdbe ("net: Add a second bind table hashed by port and address")
commit 538aaf9b2383 ("selftests: Add test for timing a bind request to a port with a populated bhash entry")
Link: https://lore.kernel.org/netdev/20220520001834.2247810-1-kuba@kernel.org/
There are a few things that need to be fixed here:
* Updating bhash2 in cases where the socket's rcv saddr changes
* Adding bhash2 hashbucket locks
Links to syzbot reports:
https://lore.kernel.org/netdev/00000000000022208805e0df247a@google.com/
https://lore.kernel.org/netdev/0000000000003f33bc05dfaf44fe@google.com/
Fixes: d5a42de8bdbe ("net: Add a second bind table hashed by port and address")
Reported-by: syzbot+015d756bbd1f8b5c8f09@syzkaller.appspotmail.com
Reported-by: syzbot+98fd2d1422063b0f8c44@syzkaller.appspotmail.com
Reported-by: syzbot+0a847a982613c6438fba@syzkaller.appspotmail.com
Signed-off-by: Joanne Koong <joannelkoong@gmail.com>
Link: https://lore.kernel.org/r/20220615193213.2419568-1-joannelkoong@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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We currently export set_cpu_feature() to modules but there are no in tree
users that can be built as modules and it is hard to see cases where it
would make sense for there to be any such users. Remove the export to avoid
anyone else having to worry about why it is there and ensure that any users
that do get added get a bit more visiblity.
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20220615191504.626604-1-broonie@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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io_req_task_prio_work_add has a strict assumption that it will only be
used with io_req_task_complete. There is a codepath that assumes this is
the case and will not even call the completion function if it is hit.
For uring_cmd with an arbitrary completion function change the call to the
correct non-priority version.
Fixes: ee692a21e9bf8 ("fs,io_uring: add infrastructure for uring-cmd")
Signed-off-by: Dylan Yudaken <dylany@fb.com>
Reviewed-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/20220616135011.441980-1-dylany@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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For recv/recvmsg, IO either completes immediately or gets queued for a
retry. This isn't the case for read/readv, if eg a normal file or a block
device is used. Here, an operation can get queued with the block layer.
If this happens, ring mapped buffers must get committed immediately to
avoid that the next read can consume the same buffer.
Check if we're dealing with pollable file, when getting a new ring mapped
provided buffer. If it's not, commit it immediately rather than wait post
issue. If we don't wait, we can race with completions coming in, or just
plain buffer reuse by committing after a retry where others could have
grabbed the same buffer.
Fixes: c7fb19428d67 ("io_uring: add support for ring mapped supplied buffers")
Reviewed-by: Hao Xu <howeyxu@tencent.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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noop_backing_dev_info is used by superblocks of various
pseudofilesystems such as kdevtmpfs. After commit 10e14073107d
("writeback: Fix inode->i_io_list not be protected by inode->i_lock
error") this broke because __mark_inode_dirty() started to access more
fields from noop_backing_dev_info and this led to crashes inside
locked_inode_to_wb_and_lock_list() called from __mark_inode_dirty().
Fix the problem by initializing noop_backing_dev_info before the
filesystems get mounted.
Fixes: 10e14073107d ("writeback: Fix inode->i_io_list not be protected by inode->i_lock error")
Reported-and-tested-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Reported-and-tested-by: Alexandru Elisei <alexandru.elisei@arm.com>
Reported-and-tested-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
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We got issue as follows:
[home]# mount /dev/sdd test
[home]# cd test
[test]# ls
dir1 lost+found
[test]# rmdir dir1
ext2_empty_dir: inject fault
[test]# ls
lost+found
[test]# cd ..
[home]# umount test
[home]# fsck.ext2 -fn /dev/sdd
e2fsck 1.42.9 (28-Dec-2013)
Pass 1: Checking inodes, blocks, and sizes
Inode 4065, i_size is 0, should be 1024. Fix? no
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Unconnected directory inode 4065 (/???)
Connect to /lost+found? no
'..' in ... (4065) is / (2), should be <The NULL inode> (0).
Fix? no
Pass 4: Checking reference counts
Inode 2 ref count is 3, should be 4. Fix? no
Inode 4065 ref count is 2, should be 3. Fix? no
Pass 5: Checking group summary information
/dev/sdd: ********** WARNING: Filesystem still has errors **********
/dev/sdd: 14/128016 files (0.0% non-contiguous), 18477/512000 blocks
Reason is same with commit 7aab5c84a0f6. We can't assume directory
is empty when read directory entry failed.
Link: https://lore.kernel.org/r/20220615090010.1544152-1-yebin10@huawei.com
Signed-off-by: Ye Bin <yebin10@huawei.com>
Signed-off-by: Jan Kara <jack@suse.cz>
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`selinux_add_opt()` stopped taking ownership of the passed context since
commit 70f4169ab421 ("selinux: parse contexts for mount options early").
unreferenced object 0xffff888114dfd140 (size 64):
comm "mount", pid 15182, jiffies 4295687028 (age 796.340s)
hex dump (first 32 bytes):
73 79 73 74 65 6d 5f 75 3a 6f 62 6a 65 63 74 5f system_u:object_
72 3a 74 65 73 74 5f 66 69 6c 65 73 79 73 74 65 r:test_filesyste
backtrace:
[<ffffffffa07dbef4>] kmemdup_nul+0x24/0x80
[<ffffffffa0d34253>] selinux_sb_eat_lsm_opts+0x293/0x560
[<ffffffffa0d13f08>] security_sb_eat_lsm_opts+0x58/0x80
[<ffffffffa0af1eb2>] generic_parse_monolithic+0x82/0x180
[<ffffffffa0a9c1a5>] do_new_mount+0x1f5/0x550
[<ffffffffa0a9eccb>] path_mount+0x2ab/0x1570
[<ffffffffa0aa019e>] __x64_sys_mount+0x20e/0x280
[<ffffffffa1f47124>] do_syscall_64+0x34/0x80
[<ffffffffa200007e>] entry_SYSCALL_64_after_hwframe+0x46/0xb0
unreferenced object 0xffff888108e71640 (size 64):
comm "fsmount", pid 7607, jiffies 4295044974 (age 1601.016s)
hex dump (first 32 bytes):
73 79 73 74 65 6d 5f 75 3a 6f 62 6a 65 63 74 5f system_u:object_
72 3a 74 65 73 74 5f 66 69 6c 65 73 79 73 74 65 r:test_filesyste
backtrace:
[<ffffffff861dc2b1>] memdup_user+0x21/0x90
[<ffffffff861dc367>] strndup_user+0x47/0xa0
[<ffffffff864f6965>] __do_sys_fsconfig+0x485/0x9f0
[<ffffffff87940124>] do_syscall_64+0x34/0x80
[<ffffffff87a0007e>] entry_SYSCALL_64_after_hwframe+0x46/0xb0
Cc: stable@vger.kernel.org
Fixes: 70f4169ab421 ("selinux: parse contexts for mount options early")
Signed-off-by: Christian Göttsche <cgzones@googlemail.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
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Reset the type of the record last as the helper `audit_free_module()`
depends on it.
unreferenced object 0xffff888153b707f0 (size 16):
comm "modprobe", pid 1319, jiffies 4295110033 (age 1083.016s)
hex dump (first 16 bytes):
62 69 6e 66 6d 74 5f 6d 69 73 63 00 6b 6b 6b a5 binfmt_misc.kkk.
backtrace:
[<ffffffffa07dbf9b>] kstrdup+0x2b/0x50
[<ffffffffa04b0a9d>] __audit_log_kern_module+0x4d/0xf0
[<ffffffffa03b6664>] load_module+0x9d4/0x2e10
[<ffffffffa03b8f44>] __do_sys_finit_module+0x114/0x1b0
[<ffffffffa1f47124>] do_syscall_64+0x34/0x80
[<ffffffffa200007e>] entry_SYSCALL_64_after_hwframe+0x46/0xb0
Cc: stable@vger.kernel.org
Fixes: 12c5e81d3fd0 ("audit: prepare audit_context for use in calling contexts beyond syscalls")
Signed-off-by: Christian Göttsche <cgzones@googlemail.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
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There are reports that the console kthreads block the global console
lock when the system is going down, for example, reboot, panic.
First part of the solution was to block kthreads in these problematic
system states so they stopped handling newly added messages.
Second part of the solution is to wait when for the kthreads when
they are actively printing. It solves the problem when a message
was printed before the system entered the problematic state and
the kthreads managed to step in.
A busy waiting has to be used because panic() can be called in any
context and in an unknown state of the scheduler.
There must be a timeout because the kthread might get stuck or sleeping
and never release the lock. The timeout 10s is an arbitrary value
inspired by the softlockup timeout.
Link: https://lore.kernel.org/r/20220610205038.GA3050413@paulmck-ThinkPad-P17-Gen-1
Link: https://lore.kernel.org/r/CAMdYzYpF4FNTBPZsEFeWRuEwSies36QM_As8osPWZSr2q-viEA@mail.gmail.com
Signed-off-by: Petr Mladek <pmladek@suse.com>
Tested-by: Paul E. McKenney <paulmck@kernel.org>
Link: https://lore.kernel.org/r/20220615162805.27962-3-pmladek@suse.com
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There are known situations when the console kthreads are not
reliable or does not work in principle, for example, early boot,
panic, shutdown.
For these situations there is the direct (legacy) mode when printk() tries
to get console_lock() and flush the messages directly. It works very well
during the early boot when the console kthreads are not available at all.
It gets more complicated in the other situations when console kthreads
might be actively printing and block console_trylock() in printk().
The same problem is in the legacy code as well. Any console_lock()
owner could block console_trylock() in printk(). It is solved by
a trick that the current console_lock() owner is responsible for
printing all pending messages. It is actually the reason why there
is the risk of softlockups and why the console kthreads were
introduced.
The console kthreads use the same approach. They are responsible
for printing the messages by definition. So that they handle
the messages anytime when they are awake and see new ones.
The global console_lock is available when there is nothing
to do.
It should work well when the problematic context is correctly
detected and printk() switches to the direct mode. But it seems
that it is not enough in practice. There are reports that
the messages are not printed during panic() or shutdown()
even though printk() tries to use the direct mode here.
The problem seems to be that console kthreads become active in these
situation as well. They steel the job before other CPUs are stopped.
Then they are stopped in the middle of the job and block the global
console_lock.
First part of the solution is to block console kthreads when
the system is in a problematic state and requires the direct
printk() mode.
Link: https://lore.kernel.org/r/20220610205038.GA3050413@paulmck-ThinkPad-P17-Gen-1
Link: https://lore.kernel.org/r/CAMdYzYpF4FNTBPZsEFeWRuEwSies36QM_As8osPWZSr2q-viEA@mail.gmail.com
Suggested-by: John Ogness <john.ogness@linutronix.de>
Tested-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20220615162805.27962-2-pmladek@suse.com
|
|
Commit a2ad63daa88b ("VFS: add FMODE_CAN_ODIRECT file flag")
added the FMODE_CAN_ODIRECT flag for NFSv3 but neglected to add
it for NFSv4.x. This causes direct io on NFSv4.x to fail open
with EINVAL:
mount -o vers=4.2 127.0.0.1:/export /mnt/nfs4
dd if=/dev/zero of=/mnt/nfs4/file.bin bs=128k count=1 oflag=direct
dd: failed to open '/mnt/nfs4/file.bin': Invalid argument
dd of=/dev/null if=/mnt/nfs4/file.bin bs=128k count=1 iflag=direct
dd: failed to open '/mnt/dir1/file1.bin': Invalid argument
Fixes: a2ad63daa88b ("VFS: add FMODE_CAN_ODIRECT file flag")
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
|
|
Commit addf466389d9 ("certs: Check that builtin blacklist hashes are
valid") was applied 8 months after the submission.
In the meantime, the base code had been removed by commit b8c96a6b466c
("certs: simplify $(srctree)/ handling and remove config_filename
macro").
Fix the Makefile.
Create a local copy of $(CONFIG_SYSTEM_BLACKLIST_HASH_LIST). It is
included from certs/blacklist_hashes.c and also works as a timestamp.
Send error messages from check-blacklist-hashes.awk to stderr instead
of stdout.
Fixes: addf466389d9 ("certs: Check that builtin blacklist hashes are valid")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Reviewed-by: Mickaël Salaün <mic@linux.microsoft.com>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
|
|
This file fails to compile as follows:
CC certs/blacklist_hashes.o
certs/blacklist_hashes.c:4:1: error: ignoring attribute ‘section (".init.data")’ because it conflicts with previous ‘section (".init.rodata")’ [-Werror=attributes]
4 | const char __initdata *const blacklist_hashes[] = {
| ^~~~~
In file included from certs/blacklist_hashes.c:2:
certs/blacklist.h:5:38: note: previous declaration here
5 | extern const char __initconst *const blacklist_hashes[];
| ^~~~~~~~~~~~~~~~
Apply the same fix as commit 2be04df5668d ("certs/blacklist_nohashes.c:
fix const confusion in certs blacklist").
Fixes: 734114f8782f ("KEYS: Add a system blacklist keyring")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Reviewed-by: Mickaël Salaün <mic@linux.microsoft.com>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
|
|
Hyper-V Isolation VM current code uses sev_es_ghcb_hv_call()
to read/write MSR via GHCB page and depends on the sev code.
This may cause regression when sev code changes interface
design.
The latest SEV-ES code requires to negotiate GHCB version before
reading/writing MSR via GHCB page and sev_es_ghcb_hv_call() doesn't
work for Hyper-V Isolation VM. Add Hyper-V ghcb related implementation
to decouple SEV and Hyper-V code. Negotiate GHCB version in the
hyperv_init() and use the version to communicate with Hyper-V
in the ghcb hv call function.
Fixes: 2ea29c5abbc2 ("x86/sev: Save the negotiated GHCB version")
Signed-off-by: Tianyu Lan <Tianyu.Lan@microsoft.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/20220614014553.1915929-1-ltykernel@gmail.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
|
|
bio_alloc_bioset() takes a block device, number of vectors, the
OP flags, the GFP mask and the bio set. However when the prototype
was changed, the callisite in ppl_do_flush() had the OP flags and
the GFP flags reversed. This introduced some sparse error:
drivers/md/raid5-ppl.c:632:57: warning: incorrect type in argument 3
(different base types)
drivers/md/raid5-ppl.c:632:57: expected unsigned int opf
drivers/md/raid5-ppl.c:632:57: got restricted gfp_t [usertype]
drivers/md/raid5-ppl.c:633:61: warning: incorrect type in argument 4
(different base types)
drivers/md/raid5-ppl.c:633:61: expected restricted gfp_t [usertype]
gfp_mask
drivers/md/raid5-ppl.c:633:61: got unsigned long long
The sparse error introduction may not have been reported correctly by
0day due to other work that was cleaning up other sparse errors in this
area.
Fixes: 609be1066731 ("block: pass a block_device and opf to bio_alloc_bioset")
Cc: stable@vger.kernel.org # 5.18+
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Song Liu <song@kernel.org>
|
|
The 07reshape5intr test is broke because of below path.
md_reap_sync_thread
-> mddev_unlock
-> md_unregister_thread(&mddev->sync_thread)
And md_check_recovery is triggered by,
mddev_unlock -> md_wakeup_thread(mddev->thread)
then mddev->reshape_position is set to MaxSector in raid5_finish_reshape
since MD_RECOVERY_INTR is cleared in md_check_recovery, which means
feature_map is not set with MD_FEATURE_RESHAPE_ACTIVE and superblock's
reshape_position can't be updated accordingly.
Fixes: 8b48ec23cc51a ("md: don't unregister sync_thread with reconfig_mutex held")
Reported-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Guoqing Jiang <guoqing.jiang@linux.dev>
Signed-off-by: Song Liu <song@kernel.org>
|
|
After commit 82f6cdcc3676c ("dm: switch dm_io booleans over to proper
flags") dm_start_io_acct stopped atomically checking and setting
was_accounted, which turned into the DM_IO_ACCOUNTED flag. This opened
the possibility for a race where IO accounting is started twice for
duplicate bios. To remove the race, check the flag while holding the
io->lock.
Fixes: 82f6cdcc3676c ("dm: switch dm_io booleans over to proper flags")
Cc: stable@vger.kernel.org
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
|
|
Since commit:
c4a0ebf87cebbfa2 ("arm64/ftrace: Make function graph use ftrace directly")
The 'ftrace_common_return' label has been unused.
Remove it.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Chengming Zhou <zhouchengming@bytedance.com>
Cc: Will Deacon <will@kernel.org>
Tested-by: "Ivan T. Ivanov" <iivanov@suse.de>
Reviewed-by: Chengming Zhou <zhouchengming@bytedance.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20220614080944.1349146-4-mark.rutland@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
|
|
Sometimes it is necessary to use a PLT entry to call an ftrace
trampoline. This is handled by ftrace_make_call() and ftrace_make_nop(),
with each having *almost* identical logic, but this is not handled by
ftrace_modify_call() since its introduction in commit:
3b23e4991fb66f6d ("arm64: implement ftrace with regs")
Due to this, if we ever were to call ftrace_modify_call() for a callsite
which requires a PLT entry for a trampoline, then either:
a) If the old addr requires a trampoline, ftrace_modify_call() will use
an out-of-range address to generate the 'old' branch instruction.
This will result in warnings from aarch64_insn_gen_branch_imm() and
ftrace_modify_code(), and no instructions will be modified. As
ftrace_modify_call() will return an error, this will result in
subsequent internal ftrace errors.
b) If the old addr does not require a trampoline, but the new addr does,
ftrace_modify_call() will use an out-of-range address to generate the
'new' branch instruction. This will result in warnings from
aarch64_insn_gen_branch_imm(), and ftrace_modify_code() will replace
the 'old' branch with a BRK. This will result in a kernel panic when
this BRK is later executed.
Practically speaking, case (a) is vastly more likely than case (b), and
typically this will result in internal ftrace errors that don't
necessarily affect the rest of the system. This can be demonstrated with
an out-of-tree test module which triggers ftrace_modify_call(), e.g.
| # insmod test_ftrace.ko
| test_ftrace: Function test_function raw=0xffffb3749399201c, callsite=0xffffb37493992024
| branch_imm_common: offset out of range
| branch_imm_common: offset out of range
| ------------[ ftrace bug ]------------
| ftrace failed to modify
| [<ffffb37493992024>] test_function+0x8/0x38 [test_ftrace]
| actual: 1d:00:00:94
| Updating ftrace call site to call a different ftrace function
| ftrace record flags: e0000002
| (2) R
| expected tramp: ffffb374ae42ed54
| ------------[ cut here ]------------
| WARNING: CPU: 0 PID: 165 at kernel/trace/ftrace.c:2085 ftrace_bug+0x280/0x2b0
| Modules linked in: test_ftrace(+)
| CPU: 0 PID: 165 Comm: insmod Not tainted 5.19.0-rc2-00002-g4d9ead8b45ce #13
| Hardware name: linux,dummy-virt (DT)
| pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
| pc : ftrace_bug+0x280/0x2b0
| lr : ftrace_bug+0x280/0x2b0
| sp : ffff80000839ba00
| x29: ffff80000839ba00 x28: 0000000000000000 x27: ffff80000839bcf0
| x26: ffffb37493994180 x25: ffffb374b0991c28 x24: ffffb374b0d70000
| x23: 00000000ffffffea x22: ffffb374afcc33b0 x21: ffffb374b08f9cc8
| x20: ffff572b8462c000 x19: ffffb374b08f9000 x18: ffffffffffffffff
| x17: 6c6c6163202c6331 x16: ffffb374ae5ad110 x15: ffffb374b0d51ee4
| x14: 0000000000000000 x13: 3435646532346561 x12: 3437336266666666
| x11: 203a706d61727420 x10: 6465746365707865 x9 : ffffb374ae5149e8
| x8 : 336266666666203a x7 : 706d617274206465 x6 : 00000000fffff167
| x5 : ffff572bffbc4a08 x4 : 00000000fffff167 x3 : 0000000000000000
| x2 : 0000000000000000 x1 : ffff572b84461e00 x0 : 0000000000000022
| Call trace:
| ftrace_bug+0x280/0x2b0
| ftrace_replace_code+0x98/0xa0
| ftrace_modify_all_code+0xe0/0x144
| arch_ftrace_update_code+0x14/0x20
| ftrace_startup+0xf8/0x1b0
| register_ftrace_function+0x38/0x90
| test_ftrace_init+0xd0/0x1000 [test_ftrace]
| do_one_initcall+0x50/0x2b0
| do_init_module+0x50/0x1f0
| load_module+0x17c8/0x1d64
| __do_sys_finit_module+0xa8/0x100
| __arm64_sys_finit_module+0x2c/0x3c
| invoke_syscall+0x50/0x120
| el0_svc_common.constprop.0+0xdc/0x100
| do_el0_svc+0x3c/0xd0
| el0_svc+0x34/0xb0
| el0t_64_sync_handler+0xbc/0x140
| el0t_64_sync+0x18c/0x190
| ---[ end trace 0000000000000000 ]---
We can solve this by consistently determining whether to use a PLT entry
for an address.
Note that since (the earlier) commit:
f1a54ae9af0da4d7 ("arm64: module/ftrace: intialize PLT at load time")
... we can consistently determine the PLT address that a given callsite
will use, and therefore ftrace_make_nop() does not need to skip
validation when a PLT is in use.
This patch factors the existing logic out of ftrace_make_call() and
ftrace_make_nop() into a common ftrace_find_callable_addr() helper
function, which is used by ftrace_make_call(), ftrace_make_nop(), and
ftrace_modify_call(). In ftrace_make_nop() the patching is consistently
validated by ftrace_modify_code() as we can always determine what the
old instruction should have been.
Fixes: 3b23e4991fb6 ("arm64: implement ftrace with regs")
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Will Deacon <will@kernel.org>
Tested-by: "Ivan T. Ivanov" <iivanov@suse.de>
Reviewed-by: Chengming Zhou <zhouchengming@bytedance.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20220614080944.1349146-3-mark.rutland@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
|
|
The branch range checks in ftrace_make_call() and ftrace_make_nop() are
incorrect, erroneously permitting a forwards branch of 128M and
erroneously rejecting a backwards branch of 128M.
This is because both functions calculate the offset backwards,
calculating the offset *from* the target *to* the branch, rather than
the other way around as the later comparisons expect.
If an out-of-range branch were erroeously permitted, this would later be
rejected by aarch64_insn_gen_branch_imm() as branch_imm_common() checks
the bounds correctly, resulting in warnings and the placement of a BRK
instruction. Note that this can only happen for a forwards branch of
exactly 128M, and so the caller would need to be exactly 128M bytes
below the relevant ftrace trampoline.
If an in-range branch were erroeously rejected, then:
* For modules when CONFIG_ARM64_MODULE_PLTS=y, this would result in the
use of a PLT entry, which is benign.
Note that this is the common case, as this is selected by
CONFIG_RANDOMIZE_BASE (and therefore RANDOMIZE_MODULE_REGION_FULL),
which distributions typically seelct. This is also selected by
CONFIG_ARM64_ERRATUM_843419.
* For modules when CONFIG_ARM64_MODULE_PLTS=n, this would result in
internal ftrace failures.
* For core kernel text, this would result in internal ftrace failues.
Note that for this to happen, the kernel text would need to be at
least 128M bytes in size, and typical configurations are smaller tha
this.
Fix this by calculating the offset *from* the branch *to* the target in
both functions.
Fixes: f8af0b364e24 ("arm64: ftrace: don't validate branch via PLT in ftrace_make_nop()")
Fixes: e71a4e1bebaf ("arm64: ftrace: add support for far branches to dynamic ftrace")
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Will Deacon <will@kernel.org>
Tested-by: "Ivan T. Ivanov" <iivanov@suse.de>
Reviewed-by: Chengming Zhou <zhouchengming@bytedance.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20220614080944.1349146-2-mark.rutland@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
|
|
This fixes a regression where coma lead to concatenating board names
and broke module loading for C8H.
Fixes: 5b4285c57b6f ("hwmon: (asus-ec-sensors) fix Formula VIII definition")
Signed-off-by: Michael Carns <mike@carns.com>
Signed-off-by: Eugene Shalygin <eugene.shalygin@gmail.com>
Link: https://lore.kernel.org/r/20220615122544.140340-1-eugene.shalygin@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
|
|
This reverts commit 73e2d827a501d48dceeb5b9b267a4cd283d6b1ae.
The reverted patch was needed as a fix after commit f5bda35fba61
("random: use static branch for crng_ready()"). However, this was
already fixed by 60e5b2886b92 ("random: do not use jump labels before
they are initialized") and hence no longer necessary to initialise jump
labels before setup_machine_fdt().
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
|
|
The skb_recv_datagram() in ax25_recvmsg() will hold lock_sock
and block until it receives a packet from the remote. If the client
doesn`t connect to server and calls read() directly, it will not
receive any packets forever. As a result, the deadlock will happen.
The fail log caused by deadlock is shown below:
[ 369.606973] INFO: task ax25_deadlock:157 blocked for more than 245 seconds.
[ 369.608919] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 369.613058] Call Trace:
[ 369.613315] <TASK>
[ 369.614072] __schedule+0x2f9/0xb20
[ 369.615029] schedule+0x49/0xb0
[ 369.615734] __lock_sock+0x92/0x100
[ 369.616763] ? destroy_sched_domains_rcu+0x20/0x20
[ 369.617941] lock_sock_nested+0x6e/0x70
[ 369.618809] ax25_bind+0xaa/0x210
[ 369.619736] __sys_bind+0xca/0xf0
[ 369.620039] ? do_futex+0xae/0x1b0
[ 369.620387] ? __x64_sys_futex+0x7c/0x1c0
[ 369.620601] ? fpregs_assert_state_consistent+0x19/0x40
[ 369.620613] __x64_sys_bind+0x11/0x20
[ 369.621791] do_syscall_64+0x3b/0x90
[ 369.622423] entry_SYSCALL_64_after_hwframe+0x46/0xb0
[ 369.623319] RIP: 0033:0x7f43c8aa8af7
[ 369.624301] RSP: 002b:00007f43c8197ef8 EFLAGS: 00000246 ORIG_RAX: 0000000000000031
[ 369.625756] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f43c8aa8af7
[ 369.626724] RDX: 0000000000000010 RSI: 000055768e2021d0 RDI: 0000000000000005
[ 369.628569] RBP: 00007f43c8197f00 R08: 0000000000000011 R09: 00007f43c8198700
[ 369.630208] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff845e6afe
[ 369.632240] R13: 00007fff845e6aff R14: 00007f43c8197fc0 R15: 00007f43c8198700
This patch replaces skb_recv_datagram() with an open-coded variant of it
releasing the socket lock before the __skb_wait_for_more_packets() call
and re-acquiring it after such call in order that other functions that
need socket lock could be executed.
what's more, the socket lock will be released only when recvmsg() will
block and that should produce nicer overall behavior.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Suggested-by: Thomas Osterried <thomas@osterried.de>
Signed-off-by: Duoming Zhou <duoming@zju.edu.cn>
Reported-by: Thomas Habets <thomas@@habets.se>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Don't let io_fill_cqe_aux() post 16B cqes for CQE32 rings, neither the
kernel nor the userspace expect this to happen.
Fixes: 76c68fbf1a1f9 ("io_uring: enable CQE32")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/64fae669fae1b7083aa15d0cd807f692b0880b9a.1655287457.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
|
|
In preparation for the following patch, inline __io_fill_cqe(), there is
only one user.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/71dab9afc3cde3f8b64d26f20d3b60bdc40726ff.1655287457.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
|
|
We don't really know the state of req->extra{1,2] fields in
__io_fill_cqe_req(), if an opcode handler is not aware of CQE32 option,
it never sets them up properly. Track the state of those fields with a
request flag.
Fixes: 76c68fbf1a1f9 ("io_uring: enable CQE32")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/4b3e5be512fbf4debec7270fd485b8a3b014d464.1655287457.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
|
|
The only user of io_req_complete32()-like functions is cmd
requests. Instead of keeping the whole complete32 family, remove them
and provide the extras in already added for inline completions
req->extra{1,2}. When fill_cqe_res() finds CQE32 option enabled
it'll use those fields to fill a 32B cqe.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/af1319eb661b1f9a0abceb51cbbf72b8002e019d.1655287457.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
|
|
We want just one function that will handle both normal cqes and 32B
cqes. Combine __io_fill_cqe_req() and __io_fill_cqe_req32(). It's still
not entirely correct yet, but saves us from cases when we fill an CQE of
a wrong size.
Fixes: 76c68fbf1a1f9 ("io_uring: enable CQE32")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/8085c5b2f74141520f60decd45334f87e389b718.1655287457.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
|
|
There are too many cqe filling helpers, kill __io_fill_cqe{32}_req(),
use __io_fill_cqe{32}_req_filled() instead, and then rename it. It'll
simplify fixing in following patches.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/c18e0d191014fb574f24721245e4e3fddd0b6917.1655287457.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
|
|
The extra byte inserted by usbnet.c when
(length % dev->maxpacket == 0) is causing problems to device.
This patch sets FLAG_SEND_ZLP to avoid this.
Tested with: 0b95:1790 ASIX Electronics Corp. AX88179 Gigabit Ethernet
Problems observed:
======================================================================
1) Using ssh/sshfs. The remote sshd daemon can abort with the message:
"message authentication code incorrect"
This happens because the tcp message sent is corrupted during the
USB "Bulk out". The device calculate the tcp checksum and send a
valid tcp message to the remote sshd. Then the encryption detects
the error and aborts.
2) NETDEV WATCHDOG: ... (ax88179_178a): transmit queue 0 timed out
3) Stop normal work without any log message.
The "Bulk in" continue receiving packets normally.
The host sends "Bulk out" and the device responds with -ECONNRESET.
(The netusb.c code tx_complete ignore -ECONNRESET)
Under normal conditions these errors take days to happen and in
intense usage take hours.
A test with ping gives packet loss, showing that something is wrong:
ping -4 -s 462 {destination} # 462 = 512 - 42 - 8
Not all packets fail.
My guess is that the device tries to find another packet starting
at the extra byte and will fail or not depending on the next
bytes (old buffer content).
======================================================================
Signed-off-by: Jose Alonso <joalonsof@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Maintainers of the directory Documentation/devicetree/bindings/net
are also the maintainers of the corresponding directory
include/dt-bindings/net.
Add the file entry for include/dt-bindings/net to the appropriate
section in MAINTAINERS.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20220613121826.11484-1-lukas.bulwahn@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
Latest drivers version requires phy-mode to be set. Otherwise we will
use "NA" mode and the switch driver will invalidate this port mode.
Fixes: 65ac79e18120 ("net: dsa: microchip: add the phylink get_caps")
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://lore.kernel.org/r/20220610081621.584393-1-o.rempel@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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'bgmac' is part of a managed resource allocated with bgmac_alloc(). It
should not be freed explicitly.
Remove the erroneous kfree() from the .remove() function.
Fixes: 34a5102c3235 ("net: bgmac: allocate struct bgmac just once & don't copy it")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/a026153108dd21239036a032b95c25b5cece253b.1655153616.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Will Deacon
Yanteng Si
Youling Tang
Jens Axboe
Mikulas Patocka
Bart Van Assche
Heiko Stuebner
Ming Lei
Yang Yingliang
Joanne Koong
Mark Brown
Dylan Yudaken
Jan Kara
Ye Bin
Christian Göttsche
Petr Mladek
Dave Wysochanski
Masahiro Yamada
Tianyu Lan
Logan Gunthorpe
Guoqing Jiang
Benjamin Marzinski
Mark Rutland
Michael Carns
Catalin Marinas
Duoming Zhou
Pavel Begunkov
Jose Alonso
Lukas Bulwahn
Oleksij Rempel
Christophe JAILLET