s390x appears to present two RNG interfaces:
- a "TRNG" that gathers entropy using some hardware function; and
- a "DRBG" that takes in a seed and expands it.
Previously, the TRNG was wired up to arch_get_random_{long,int}(), but
it was observed that this was being called really frequently, resulting
in high overhead. So it was changed to be wired up to arch_get_random_
seed_{long,int}(), which was a reasonable decision. Later on, the DRBG
was then wired up to arch_get_random_{long,int}(), with a complicated
buffer filling thread, to control overhead and rate.
Fortunately, none of the performance issues matter much now. The RNG
always attempts to use arch_get_random_seed_{long,int}() first, which
means a complicated implementation of arch_get_random_{long,int}() isn't
really valuable or useful to have around. And it's only used when
reseeding, which means it won't hit the high throughput complications
that were faced before.
So this commit returns to an earlier design of just calling the TRNG in
arch_get_random_seed_{long,int}(), and returning false in arch_get_
random_{long,int}().
Part of what makes the simplification possible is that the RNG now seeds
itself using the TRNG at bootup. But this only works if the TRNG is
detected early in boot, before random_init() is called. So this commit
also causes that check to happen in setup_arch().
Cc: stable@vger.kernel.org
Cc: Harald Freudenberger <freude@linux.ibm.com>
Cc: Ingo Franzki <ifranzki@linux.ibm.com>
Cc: Juergen Christ <jchrist@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Link: https://lore.kernel.org/r/20220610222023.378448-1-Jason@zx2c4.com
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
This is equivalent to the pattern rule in scripts/Makefile.build.
Having the dependency on $(obj)/purgatory.ro is enough.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Link: https://lore.kernel.org/r/20220613170902.1775211-3-masahiroy@kernel.org
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
The purgatory/ directory is entirely guarded in arch/s390/Kbuild.
CONFIG_ARCH_HAS_KEXEC_PURGATORY is bool type.
$(CONFIG_ARCH_HAS_KEXEC_PURGATORY) is always 'y' when Kbuild visits
this Makefile for building.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Link: https://lore.kernel.org/r/20220613170902.1775211-2-masahiroy@kernel.org
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Since commit 4c0f032d49 ("s390/purgatory: Omit use of bin2c"),
s390 builds the purgatory without using bin2c.
Remove 'select BUILD_BIN2C' to avoid the unneeded build of bin2c.
Fixes: 4c0f032d49 ("s390/purgatory: Omit use of bin2c")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Link: https://lore.kernel.org/r/20220613170902.1775211-1-masahiroy@kernel.org
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Two different events such as pai_crypto/KM_AES_128/ and
pai_crypto/KM_AES_192/ can be installed multiple times on the same CPU
and the events are executed concurrently:
# perf stat -e pai_crypto/KM_AES_128/ -C0 -a -- sleep 5 &
# sleep 2
# perf stat -e pai_crypto/KM_AES_192/ -C0 -a -- true
This results in the first event being installed two times with two seconds
delay. The kernel does install the second event after the first
event has been deleted and re-added, as can be seen in the traces:
13:48:47.600350 paicrypt_start event 0x1007 (event KM_AES_128)
13:48:49.599359 paicrypt_stop event 0x1007 (event KM_AES_128)
13:48:49.599198 paicrypt_start event 0x1007
13:48:49.599199 paicrypt_start event 0x1008
13:48:49.599921 paicrypt_event_destroy event 0x1008
13:48:52.601507 paicrypt_event_destroy event 0x1007
This is caused by functions event_sched_in() and event_sched_out() which
call the PMU's add() and start() functions on schedule_in and the PMU's
stop() and del() functions on schedule_out. This is correct for events
attached to processes. The pai_crypto events are system-wide events
and not attached to processes.
Since the kernel common code can not be changed easily, fix this issue
and do not reset the event count value to zero each time the event is
added and started. Instead use a flag and zero the event count value
only when called immediately after the event has been initialized.
Therefore only the first invocation of the the event's add() function
initializes the event count value to zero. The following invocations
of the event's add() function leave the current event count value
untouched.
Fixes: 39d62336f5 ("s390/pai: add support for cryptography counters")
Reported-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Acked-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
The pai_crypto PMU has to check the event number. It has to be in
the supported range. This is not the case, the lower limit is not
checked. Fix this and obey the lower limit.
Fixes: 39d62336f5 ("s390/pai: add support for cryptography counters")
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Suggested-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Reviewed-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Events CPU_CYCLES and INSTRUCTIONS can be submitted with two different
perf_event attribute::type values:
- PERF_TYPE_HARDWARE: when invoked via perf tool predefined events name
cycles or cpu-cycles or instructions.
- pmu->type: when invoked via perf tool event name cpu_cf/CPU_CYLCES/ or
cpu_cf/INSTRUCTIONS/. This invocation also selects the PMU to which
the event belongs.
Handle both type of invocations identical for events CPU_CYLCES and
INSTRUCTIONS. They address the same hardware.
The result is different when event modifier exclude_kernel is also set.
Invocation with event modifier for user space event counting fails.
Output before:
# perf stat -e cpum_cf/cpu_cycles/u -- true
Performance counter stats for 'true':
<not supported> cpum_cf/cpu_cycles/u
0.000761033 seconds time elapsed
0.000076000 seconds user
0.000725000 seconds sys
#
Output after:
# perf stat -e cpum_cf/cpu_cycles/u -- true
Performance counter stats for 'true':
349,613 cpum_cf/cpu_cycles/u
0.000844143 seconds time elapsed
0.000079000 seconds user
0.000800000 seconds sys
#
Fixes: 6a82e23f45 ("s390/cpumf: Adjust registration of s390 PMU device drivers")
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Acked-by: Sumanth Korikkar <sumanthk@linux.ibm.com>
[agordeev@linux.ibm.com corrected commit ID of Fixes commit]
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Callback copy_oldmem_page() returns either error code or zero.
Instead, it should return the error code or number of bytes copied.
Fixes: df9694c797 ("s390/dump: streamline oldmem copy functions")
Reviewed-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Tested-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
In case old memory was successfully copied the passed iterator
should be advanced as well. Currently copy_oldmem_page() is
always called with single-segment iterator. Should that ever
change - copy_oldmem_user and copy_oldmem_kernel() functions
would need a rework to deal with multi-segment iterators.
Fixes: 5d8de293c2 ("vmcore: convert copy_oldmem_page() to take an iov_iter")
Reviewed-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Tested-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
- Make RESERVE_BRK() work again with older binutils. The recent
'simplification' broke that.
- Make early #VE handling increment RIP when successful.
- Make the #VE code consistent vs. the RIP adjustments and add comments.
- Handle load_unaligned_zeropad() across page boundaries correctly in #VE
when the second page is shared.
-----BEGIN PGP SIGNATURE-----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=sRtG
-----END PGP SIGNATURE-----
Merge tag 'x86-urgent-2022-06-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
- Make RESERVE_BRK() work again with older binutils. The recent
'simplification' broke that.
- Make early #VE handling increment RIP when successful.
- Make the #VE code consistent vs. the RIP adjustments and add
comments.
- Handle load_unaligned_zeropad() across page boundaries correctly in
#VE when the second page is shared.
* tag 'x86-urgent-2022-06-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/tdx: Handle load_unaligned_zeropad() page-cross to a shared page
x86/tdx: Clarify RIP adjustments in #VE handler
x86/tdx: Fix early #VE handling
x86/mm: Fix RESERVE_BRK() for older binutils
- Remove obsolete CONFIG_X86_SMAP reference from objtool
- Fix overlapping text section failures in faddr2line for real
- Remove OBJECT_FILES_NON_STANDARD usage from x86 ftrace and replace it
with finegrained annotations so objtool can validate that code
correctly.
-----BEGIN PGP SIGNATURE-----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=12KJ
-----END PGP SIGNATURE-----
Merge tag 'objtool-urgent-2022-06-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull build tooling updates from Thomas Gleixner:
- Remove obsolete CONFIG_X86_SMAP reference from objtool
- Fix overlapping text section failures in faddr2line for real
- Remove OBJECT_FILES_NON_STANDARD usage from x86 ftrace and replace it
with finegrained annotations so objtool can validate that code
correctly.
* tag 'objtool-urgent-2022-06-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/ftrace: Remove OBJECT_FILES_NON_STANDARD usage
faddr2line: Fix overlapping text section failures, the sequel
objtool: Fix obsolete reference to CONFIG_X86_SMAP
balance_push(). sched_setscheduler() spliced the balance callbacks accross
a lock break which makes an interleaving schedule() observe an empty list.
-----BEGIN PGP SIGNATURE-----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=k54w
-----END PGP SIGNATURE-----
Merge tag 'sched-urgent-2022-06-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fix from Thomas Gleixner:
"A single scheduler fix plugging a race between sched_setscheduler()
and balance_push().
sched_setscheduler() spliced the balance callbacks accross a lock
break which makes it possible for an interleaving schedule() to
observe an empty list"
* tag 'sched-urgent-2022-06-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched: Fix balance_push() vs __sched_setscheduler()
worked until prandom_u32() was switched to the real random generator, which
takes a spinlock for extraction, which does not work on RT when invoked
from atomic contexts. lockdep has no requirement for real random numbers
and it turns out sched_clock() is good enough to create the cookie. That
works everywhere and is faster.
-----BEGIN PGP SIGNATURE-----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=iuyB
-----END PGP SIGNATURE-----
Merge tag 'locking-urgent-2022-06-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull lockdep fix from Thomas Gleixner:
"A RT fix for lockdep.
lockdep invokes prandom_u32() to create cookies. This worked until
prandom_u32() was switched to the real random generator, which takes a
spinlock for extraction, which does not work on RT when invoked from
atomic contexts.
lockdep has no requirement for real random numbers and it turns out
sched_clock() is good enough to create the cookie. That works
everywhere and is faster"
* tag 'locking-urgent-2022-06-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
locking/lockdep: Use sched_clock() for random numbers
Here are some small char/misc driver fixes for 5.19-rc3 that resolve
some reported issues.
They include:
- mei driver fixes
- comedi driver fix
- rtsx build warning fix
- fsl-mc-bus driver fix
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCYq8I/Q8cZ3JlZ0Brcm9h
aC5jb20ACgkQMUfUDdst+ylZlgCdEnqmS5N5deU40WD0CwRchzg1PCsAnAz0XUsz
yAj2wz/dh6H741FisaoO
=Dfta
-----END PGP SIGNATURE-----
Merge tag 'char-misc-5.19-rc3-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes for real from Greg KH:
"Let's tag the proper branch this time...
Here are some small char/misc driver fixes for 5.19-rc3 that resolve
some reported issues.
They include:
- mei driver fixes
- comedi driver fix
- rtsx build warning fix
- fsl-mc-bus driver fix
All of these have been in linux-next for a while with no reported
issues"
This is what the merge in commit f0ec9c65a8 _should_ have merged, but
Greg fat-fingered the pull request and I got some small changes from
linux-next instead there. Credit to Nathan Chancellor for eagle-eyes.
Link: https://lore.kernel.org/all/Yqywy+Md2AfGDu8v@dev-arch.thelio-3990X/
* tag 'char-misc-5.19-rc3-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
bus: fsl-mc-bus: fix KASAN use-after-free in fsl_mc_bus_remove()
mei: me: add raptor lake point S DID
mei: hbm: drop capability response on early shutdown
mei: me: set internal pg flag to off on hardware reset
misc: rtsx: Fix clang -Wsometimes-uninitialized in rts5261_init_from_hw()
comedi: vmk80xx: fix expression for tx buffer size
-----BEGIN PGP SIGNATURE-----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=WbSS
-----END PGP SIGNATURE-----
Merge tag 'i2c-for-5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"MAINTAINERS rectifications and a few minor driver fixes"
* tag 'i2c-for-5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: mediatek: Fix an error handling path in mtk_i2c_probe()
i2c: designware: Use standard optional ref clock implementation
MAINTAINERS: core DT include belongs to core
MAINTAINERS: add include/dt-bindings/i2c to I2C SUBSYSTEM HOST DRIVERS
i2c: npcm7xx: Add check for platform_driver_register
MAINTAINERS: Update Synopsys DesignWare I2C to Supported
- Fix a bug where inode flag changes would accidentally drop nrext64.
- Fix a race condition when toggling LARP mode.
-----BEGIN PGP SIGNATURE-----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=vvDX
-----END PGP SIGNATURE-----
Merge tag 'xfs-5.19-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fixes from Darrick Wong:
"There's not a whole lot this time around (I'm still on vacation) but
here are some important fixes for new features merged in -rc1:
- Fix a bug where inode flag changes would accidentally drop nrext64
- Fix a race condition when toggling LARP mode"
* tag 'xfs-5.19-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: preserve DIFLAG2_NREXT64 when setting other inode attributes
xfs: fix variable state usage
xfs: fix TOCTOU race involving the new logged xattrs control knob
or error injection. Also fix up how test_dummy_encryption mount
option is handled for the new mount API. Finally, fix/cleanup a
number of comments and ext4 Documentation files.
-----BEGIN PGP SIGNATURE-----
iQEzBAABCAAdFiEEK2m5VNv+CHkogTfJ8vlZVpUNgaMFAmKuYpcACgkQ8vlZVpUN
gaMXwwf8DSHJ3gI2Lo0wrzJm7KSS0C+HK29/rtLCZdxECQsZR156ZzSF3zAFKOwK
Yx3RJwiFxrciUUytY/MWTyalCk+M8oW1093SfRqNNZCbZNi33acnbTqioa7INnDw
snFGGEU1y0M0AUduxNWPr71P80sTyQa0ZplIc4YeR98zzMvoWgi1dvo4wNdtJNQb
Gb0FtBhgP+IeK50eBlK4O0Eg5kqd0V5OeTLUYUfsWqU28ap8dHYE48I6sIdHx6az
sa6b2+YRuBxJUV61FNujuVtkDgUHXtXM97kkGpywRSLjo4iFxlQvX9Ew4lBD9RDI
b0YHVzK/DU9M3VfiYgzGwShCb/M68w==
=NtNY
-----END PGP SIGNATURE-----
Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 fixes from Ted Ts'o:
"Fix a variety of bugs, many of which were found by folks using fuzzing
or error injection.
Also fix up how test_dummy_encryption mount option is handled for the
new mount API.
Finally, fix/cleanup a number of comments and ext4 Documentation
files"
* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: fix a doubled word "need" in a comment
ext4: add reserved GDT blocks check
ext4: make variable "count" signed
ext4: correct the judgment of BUG in ext4_mb_normalize_request
ext4: fix bug_on ext4_mb_use_inode_pa
ext4: fix up test_dummy_encryption handling for new mount API
ext4: use kmemdup() to replace kmalloc + memcpy
ext4: fix super block checksum incorrect after mount
ext4: improve write performance with disabled delalloc
ext4: fix warning when submitting superblock in ext4_commit_super()
ext4, doc: remove unnecessary escaping
ext4: fix incorrect comment in ext4_bio_write_page()
fs: fix jbd2_journal_try_to_free_buffers() kernel-doc comment
-----BEGIN PGP SIGNATURE-----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=oBRl
-----END PGP SIGNATURE-----
Merge tag '5.19-rc2-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs client fixes from Steve French:
"Two cifs debugging improvements - one found to deal with debugging a
multichannel problem and one for a recent fallocate issue
This does include the two larger multichannel reconnect (dynamically
adjusting interfaces on reconnect) patches, because we recently found
an additional problem with multichannel to one server type that I want
to include at the same time"
* tag '5.19-rc2-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: when a channel is not found for server, log its connection id
smb3: add trace point for SMB2_set_eof
We capture a NULL pointer issue when resizing a corrupt ext4 image which
is freshly clear resize_inode feature (not run e2fsck). It could be
simply reproduced by following steps. The problem is because of the
resize_inode feature was cleared, and it will convert the filesystem to
meta_bg mode in ext4_resize_fs(), but the es->s_reserved_gdt_blocks was
not reduced to zero, so could we mistakenly call reserve_backup_gdb()
and passing an uninitialized resize_inode to it when adding new group
descriptors.
mkfs.ext4 /dev/sda 3G
tune2fs -O ^resize_inode /dev/sda #forget to run requested e2fsck
mount /dev/sda /mnt
resize2fs /dev/sda 8G
========
BUG: kernel NULL pointer dereference, address: 0000000000000028
CPU: 19 PID: 3243 Comm: resize2fs Not tainted 5.18.0-rc7-00001-gfde086c5ebfd #748
...
RIP: 0010:ext4_flex_group_add+0xe08/0x2570
...
Call Trace:
<TASK>
ext4_resize_fs+0xbec/0x1660
__ext4_ioctl+0x1749/0x24e0
ext4_ioctl+0x12/0x20
__x64_sys_ioctl+0xa6/0x110
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f2dd739617b
========
The fix is simple, add a check in ext4_resize_begin() to make sure that
the es->s_reserved_gdt_blocks is zero when the resize_inode feature is
disabled.
Cc: stable@kernel.org
Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Ritesh Harjani <ritesh.list@gmail.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20220601092717.763694-1-yi.zhang@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Since dx_make_map() may return -EFSCORRUPTED now, so change "count" to
be a signed integer so we can correctly check for an error code returned
by dx_make_map().
Fixes: 46c116b920 ("ext4: verify dir block before splitting it")
Cc: stable@kernel.org
Signed-off-by: Ding Xiang <dingxiang@cmss.chinamobile.com>
Link: https://lore.kernel.org/r/20220530100047.537598-1-dingxiang@cmss.chinamobile.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
ext4_mb_normalize_request() can move logical start of allocated blocks
to reduce fragmentation and better utilize preallocation. However logical
block requested as a start of allocation (ac->ac_o_ex.fe_logical) should
always be covered by allocated blocks so we should check that by
modifying and to or in the assertion.
Signed-off-by: Baokun Li <libaokun1@huawei.com>
Reviewed-by: Ritesh Harjani <ritesh.list@gmail.com>
Link: https://lore.kernel.org/r/20220528110017.354175-3-libaokun1@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Hulk Robot reported a BUG_ON:
==================================================================
kernel BUG at fs/ext4/mballoc.c:3211!
[...]
RIP: 0010:ext4_mb_mark_diskspace_used.cold+0x85/0x136f
[...]
Call Trace:
ext4_mb_new_blocks+0x9df/0x5d30
ext4_ext_map_blocks+0x1803/0x4d80
ext4_map_blocks+0x3a4/0x1a10
ext4_writepages+0x126d/0x2c30
do_writepages+0x7f/0x1b0
__filemap_fdatawrite_range+0x285/0x3b0
file_write_and_wait_range+0xb1/0x140
ext4_sync_file+0x1aa/0xca0
vfs_fsync_range+0xfb/0x260
do_fsync+0x48/0xa0
[...]
==================================================================
Above issue may happen as follows:
-------------------------------------
do_fsync
vfs_fsync_range
ext4_sync_file
file_write_and_wait_range
__filemap_fdatawrite_range
do_writepages
ext4_writepages
mpage_map_and_submit_extent
mpage_map_one_extent
ext4_map_blocks
ext4_mb_new_blocks
ext4_mb_normalize_request
>>> start + size <= ac->ac_o_ex.fe_logical
ext4_mb_regular_allocator
ext4_mb_simple_scan_group
ext4_mb_use_best_found
ext4_mb_new_preallocation
ext4_mb_new_inode_pa
ext4_mb_use_inode_pa
>>> set ac->ac_b_ex.fe_len <= 0
ext4_mb_mark_diskspace_used
>>> BUG_ON(ac->ac_b_ex.fe_len <= 0);
we can easily reproduce this problem with the following commands:
`fallocate -l100M disk`
`mkfs.ext4 -b 1024 -g 256 disk`
`mount disk /mnt`
`fsstress -d /mnt -l 0 -n 1000 -p 1`
The size must be smaller than or equal to EXT4_BLOCKS_PER_GROUP.
Therefore, "start + size <= ac->ac_o_ex.fe_logical" may occur
when the size is truncated. So start should be the start position of
the group where ac_o_ex.fe_logical is located after alignment.
In addition, when the value of fe_logical or EXT4_BLOCKS_PER_GROUP
is very large, the value calculated by start_off is more accurate.
Cc: stable@kernel.org
Fixes: cd648b8a8f ("ext4: trim allocation requests to group size")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Baokun Li <libaokun1@huawei.com>
Reviewed-by: Ritesh Harjani <ritesh.list@gmail.com>
Link: https://lore.kernel.org/r/20220528110017.354175-2-libaokun1@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Since ext4 was converted to the new mount API, the test_dummy_encryption
mount option isn't being handled entirely correctly, because the needed
fscrypt_set_test_dummy_encryption() helper function combines
parsing/checking/applying into one function. That doesn't work well
with the new mount API, which split these into separate steps.
This was sort of okay anyway, due to the parsing logic that was copied
from fscrypt_set_test_dummy_encryption() into ext4_parse_param(),
combined with an additional check in ext4_check_test_dummy_encryption().
However, these overlooked the case of changing the value of
test_dummy_encryption on remount, which isn't allowed but ext4 wasn't
detecting until ext4_apply_options() when it's too late to fail.
Another bug is that if test_dummy_encryption was specified multiple
times with an argument, memory was leaked.
Fix this up properly by using the new helper functions that allow
splitting up the parse/check/apply steps for test_dummy_encryption.
Fixes: cebe85d570 ("ext4: switch to the new mount api")
Signed-off-by: Eric Biggers <ebiggers@google.com>
Link: https://lore.kernel.org/r/20220526040412.173025-1-ebiggers@kernel.org
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
We got issue as follows:
[home]# mount /dev/sda test
EXT4-fs (sda): warning: mounting fs with errors, running e2fsck is recommended
[home]# dmesg
EXT4-fs (sda): warning: mounting fs with errors, running e2fsck is recommended
EXT4-fs (sda): Errors on filesystem, clearing orphan list.
EXT4-fs (sda): recovery complete
EXT4-fs (sda): mounted filesystem with ordered data mode. Quota mode: none.
[home]# debugfs /dev/sda
debugfs 1.46.5 (30-Dec-2021)
Checksum errors in superblock! Retrying...
Reason is ext4_orphan_cleanup will reset ‘s_last_orphan’ but not update
super block checksum.
To solve above issue, defer update super block checksum after
ext4_orphan_cleanup.
Signed-off-by: Ye Bin <yebin10@huawei.com>
Cc: stable@kernel.org
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Ritesh Harjani <ritesh.list@gmail.com>
Link: https://lore.kernel.org/r/20220525012904.1604737-1-yebin10@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
cifs_ses_get_chan_index gets the index for a given server pointer.
When a match is not found, we warn about a possible bug.
However, printing details about the non-matching server could be
more useful to debug here.
Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
load_unaligned_zeropad() can lead to unwanted loads across page boundaries.
The unwanted loads are typically harmless. But, they might be made to
totally unrelated or even unmapped memory. load_unaligned_zeropad()
relies on exception fixup (#PF, #GP and now #VE) to recover from these
unwanted loads.
In TDX guests, the second page can be shared page and a VMM may configure
it to trigger #VE.
The kernel assumes that #VE on a shared page is an MMIO access and tries to
decode instruction to handle it. In case of load_unaligned_zeropad() it
may result in confusion as it is not MMIO access.
Fix it by detecting split page MMIO accesses and failing them.
load_unaligned_zeropad() will recover using exception fixups.
The issue was discovered by analysis and reproduced artificially. It was
not triggered during testing.
[ dhansen: fix up changelogs and comments for grammar and clarity,
plus incorporate Kirill's off-by-one fix]
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Link: https://lkml.kernel.org/r/20220614120135.14812-4-kirill.shutemov@linux.intel.com
- Bugfixes:
- Add FMODE_CAN_ODIRECT support to NFSv4 so opens don't fail
- Fix trunking detection & cl_max_connect setting
- Avoid pnfs_update_layout() livelocks
- Don't keep retrying pNFS if the server replies with NFS4ERR_UNAVAILABLE
-----BEGIN PGP SIGNATURE-----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=nTJk
-----END PGP SIGNATURE-----
Merge tag 'nfs-for-5.19-2' of git://git.linux-nfs.org/projects/anna/linux-nfs
Pull NFS client fixes from Anna Schumaker:
- Add FMODE_CAN_ODIRECT support to NFSv4 so opens don't fail
- Fix trunking detection & cl_max_connect setting
- Avoid pnfs_update_layout() livelocks
- Don't keep retrying pNFS if the server replies with NFS4ERR_UNAVAILABLE
* tag 'nfs-for-5.19-2' of git://git.linux-nfs.org/projects/anna/linux-nfs:
NFSv4: Add FMODE_CAN_ODIRECT after successful open of a NFS4.x file
sunrpc: set cl_max_connect when cloning an rpc_clnt
pNFS: Avoid a live lock condition in pnfs_update_layout()
pNFS: Don't keep retrying if the server replied NFS4ERR_LAYOUTUNAVAILABLE
-----BEGIN PGP SIGNATURE-----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=5y1d
-----END PGP SIGNATURE-----
Merge tag 'pci-v5.19-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull pci fix from Bjorn Helgaas:
"Revert clipping of PCI host bridge windows to avoid E820 regions,
which broke several machines by forcing unnecessary BAR reassignments
(Hans de Goede)"
* tag 'pci-v5.19-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
x86/PCI: Revert "x86/PCI: Clip only host bridge windows for E820 regions"
-----BEGIN PGP SIGNATURE-----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=iiXX
-----END PGP SIGNATURE-----
Merge tag 'printk-for-5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux
Pull printk fixes from Petr Mladek:
"Make the global console_sem available for CPU that is handling panic()
or shutdown.
This is an old problem when an existing console lock owner might block
console output, but it became more visible with the kthreads"
* tag 'printk-for-5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux:
printk: Wait for the global console lock when the system is going down
printk: Block console kthreads when direct printing will be required
This reverts commit 4c5e242d3e.
Prior to 4c5e242d3e ("x86/PCI: Clip only host bridge windows for E820
regions"), E820 regions did not affect PCI host bridge windows. We only
looked at E820 regions and avoided them when allocating new MMIO space.
If firmware PCI bridge window and BAR assignments used E820 regions, we
left them alone.
After 4c5e242d3e, we removed E820 regions from the PCI host bridge
windows before looking at BARs, so firmware assignments in E820 regions
looked like errors, and we moved things around to fit in the space left
(if any) after removing the E820 regions. This unnecessary BAR
reassignment broke several machines.
Guilherme reported that Steam Deck fails to boot after 4c5e242d3e. We
clipped the window that contained most 32-bit BARs:
BIOS-e820: [mem 0x00000000a0000000-0x00000000a00fffff] reserved
acpi PNP0A08:00: clipped [mem 0x80000000-0xf7ffffff window] to [mem 0xa0100000-0xf7ffffff window] for e820 entry [mem 0xa0000000-0xa00fffff]
which forced us to reassign all those BARs, for example, this NVMe BAR:
pci 0000:00:01.2: PCI bridge to [bus 01]
pci 0000:00:01.2: bridge window [mem 0x80600000-0x806fffff]
pci 0000:01:00.0: BAR 0: [mem 0x80600000-0x80603fff 64bit]
pci 0000:00:01.2: can't claim window [mem 0x80600000-0x806fffff]: no compatible bridge window
pci 0000:01:00.0: can't claim BAR 0 [mem 0x80600000-0x80603fff 64bit]: no compatible bridge window
pci 0000:00:01.2: bridge window: assigned [mem 0xa0100000-0xa01fffff]
pci 0000:01:00.0: BAR 0: assigned [mem 0xa0100000-0xa0103fff 64bit]
All the reassignments were successful, so the devices should have been
functional at the new addresses, but some were not.
Andy reported a similar failure on an Intel MID platform. Benjamin
reported a similar failure on a VMWare Fusion VM.
Note: this is not a clean revert; this revert keeps the later change to
make the clipping dependent on a new pci_use_e820 bool, moving the checking
of this bool to arch_remove_reservations().
[bhelgaas: commit log, add more reporters and testers]
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=216109
Reported-by: Guilherme G. Piccoli <gpiccoli@igalia.com>
Reported-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reported-by: Benjamin Coddington <bcodding@redhat.com>
Reported-by: Jongman Heo <jongman.heo@gmail.com>
Fixes: 4c5e242d3e ("x86/PCI: Clip only host bridge windows for E820 regions")
Link: https://lore.kernel.org/r/20220612144325.85366-1-hdegoede@redhat.com
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com>
Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
- Revert the moving of the jump labels initialisation before
setup_machine_fdt(). The bug was fixed in drivers/char/random.c.
- Ftrace fixes: branch range check and consistent handling of PLTs.
- Clean rather than invalidate FROM_DEVICE buffers at start of DMA
transfer (safer if such buffer is mapped in user space). A cache
invalidation is done already at the end of the transfer.
- A couple of clean-ups (unexport symbol, remove unused label).
-----BEGIN PGP SIGNATURE-----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=Q14k
-----END PGP SIGNATURE-----
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- Revert the moving of the jump labels initialisation before
setup_machine_fdt(). The bug was fixed in drivers/char/random.c.
- Ftrace fixes: branch range check and consistent handling of PLTs.
- Clean rather than invalidate FROM_DEVICE buffers at start of DMA
transfer (safer if such buffer is mapped in user space). A cache
invalidation is done already at the end of the transfer.
- A couple of clean-ups (unexport symbol, remove unused label).
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: mm: Don't invalidate FROM_DEVICE buffers at start of DMA transfer
arm64/cpufeature: Unexport set_cpu_feature()
arm64: ftrace: remove redundant label
arm64: ftrace: consistently handle PLTs.
arm64: ftrace: fix branch range checks
Revert "arm64: Initialize jump labels before setup_machine_fdt()"
* A fix for the PolarFire SOC's device tree.
* A handful of fixes for the recently added Svpmbt support.
* An improvement to the Kconfig text for Svpbmt.
-----BEGIN PGP SIGNATURE-----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=wL7+
-----END PGP SIGNATURE-----
Merge tag 'riscv-for-linus-5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
- A fix for the PolarFire SOC's device tree
- A handful of fixes for the recently added Svpmbt support
- An improvement to the Kconfig text for Svpbmt
* tag 'riscv-for-linus-5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: Improve description for RISCV_ISA_SVPBMT Kconfig symbol
riscv: drop cpufeature_apply_feature tracking variable
riscv: fix dependency for t-head errata
riscv: dts: microchip: re-add pdma to mpfs device tree
-----BEGIN PGP SIGNATURE-----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=5gxO
-----END PGP SIGNATURE-----
Merge tag 'block-5.19-2022-06-16' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
- NVMe pull request from Christoph
- Quirks, quirks, quirks to work around buggy consumer grade
devices (Keith Bush, Ning Wang, Stefan Reiter, Rasheed Hsueh)
- Better kernel messages for devices that need quirking (Keith
Bush)
- Make a kernel message more useful (Thomas Weißschuh)
- MD pull request from Song, with a few fixes
- blk-mq sysfs locking fixes (Ming)
- BFQ stats fix (Bart)
- blk-mq offline queue fix (Bart)
- blk-mq flush request tag fix (Ming)
* tag 'block-5.19-2022-06-16' of git://git.kernel.dk/linux-block:
block/bfq: Enable I/O statistics
blk-mq: don't clear flush_rq from tags->rqs[]
blk-mq: avoid to touch q->elevator without any protection
blk-mq: protect q->elevator by ->sysfs_lock in blk_mq_elv_switch_none
block: Fix handling of offline queues in blk_mq_alloc_request_hctx()
md/raid5-ppl: Fix argument order in bio_alloc_bioset()
Revert "md: don't unregister sync_thread with reconfig_mutex held"
nvme-pci: disable write zeros support on UMIC and Samsung SSDs
nvme-pci: avoid the deepest sleep state on ZHITAI TiPro7000 SSDs
nvme-pci: sk hynix p31 has bogus namespace ids
nvme-pci: smi has bogus namespace ids
nvme-pci: phison e12 has bogus namespace ids
nvme-pci: add NVME_QUIRK_BOGUS_NID for ADATA XPG GAMMIX S50
nvme-pci: add trouble shooting steps for timeouts
nvme: add bug report info for global duplicate id
nvme: add device name to warning in uuid_show()
-----BEGIN PGP SIGNATURE-----
iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAmKsc6oQHGF4Ym9lQGtl
cm5lbC5kawAKCRD301j7KXHgpgGxD/9YB9O3Dw2WOlzE+bnbadDEL0/XdaMVSZQX
t5pfz1YTBUf/KgF+HWo6cGgvNupNjo6a2FAGJiGIXaEx2lZbKw7gUEPXohqY18h6
alLPzt881whWESXTjpsDtc57PfCVY/K5/5ebqN5AhoXCgtl6CvlePJZH8uzBMq5F
vGjcBgdofum677uNPSEpn6AzIGVtd9jI6Rg8r/a4iRdzeAJlkp1ifVh424qGgWtQ
fQuoV83EPut/RTUodXZwJ/2XrdJwNDex98LEmp1Pi78IprGawrQ5F9JzsypQR2ie
8ajLe6xn4wiXuWFr3pE9paow3c1APuftJ/PRXqBHoh2X6sMI4G2B2UNDkKrlK6DD
9r5INcKzpMY390nN6GnSD1BSWBGNuglu9mASXDKFXL/JK+XNi6nYlaXdPn4uAhyR
Cp41xx3gGf3r8aq8Pv+YNRej3kpNSi8oHKhYPToxn+EwPX8TpTdexnQC4ZKWNMbZ
Mg1hY5Z0NxuhEyvKlTXZmOF8dlf2dTZYJoqHHeYhvcoZT9dWwjrINXqJvqsCyywB
2fPOPjdn1SuBwsugSkYkMlsbLm4rlyLCLnEL2SgcbzyQ2rubN5UFcp3ouJOEt5Nz
HDZi4s7LBOZTGmnmtev5GOA7kDCQ2EqOcRZQOdWPSa5g5pOL11ahxRW0KESSsPik
1pTBDjTfxg==
=55JE
-----END PGP SIGNATURE-----
Merge tag 'io_uring-5.19-2022-06-16' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
"Bigger than usual at this time, both because we missed -rc2, but also
because of some reverts that we chose to do. In detail:
- Adjust mapped buffer API while we still can (Dylan)
- Mapped buffer fixes (Dylan, Hao, Pavel, me)
- Fix for uring_cmd wrong API usage for task_work (Dylan)
- Fix for bug introduced in fixed file closing (Hao)
- Fix race in buffer/file resource handling (Pavel)
- Revert the NOP support for CQE32 and buffer selection that was
brought up during the merge window (Pavel)
- Remove IORING_CLOSE_FD_AND_FILE_SLOT introduced in this merge
window. The API needs further refining, so just yank it for now and
we'll revisit for a later kernel.
- Series cleaning up the CQE32 support added in this merge window,
making it more integrated rather than sitting on the side (Pavel)"
* tag 'io_uring-5.19-2022-06-16' of git://git.kernel.dk/linux-block: (21 commits)
io_uring: recycle provided buffer if we punt to io-wq
io_uring: do not use prio task_work_add in uring_cmd
io_uring: commit non-pollable provided mapped buffers upfront
io_uring: make io_fill_cqe_aux honour CQE32
io_uring: remove __io_fill_cqe() helper
io_uring: fix ->extra{1,2} misuse
io_uring: fill extra big cqe fields from req
io_uring: unite fill_cqe and the 32B version
io_uring: get rid of __io_fill_cqe{32}_req()
io_uring: remove IORING_CLOSE_FD_AND_FILE_SLOT
Revert "io_uring: add buffer selection support to IORING_OP_NOP"
Revert "io_uring: support CQE32 for nop operation"
io_uring: limit size of provided buffer ring
io_uring: fix types in provided buffer ring
io_uring: fix index calculation
io_uring: fix double unlock for pbuf select
io_uring: kbuf: fix bug of not consuming ring buffer in partial io case
io_uring: openclose: fix bug of closing wrong fixed file
io_uring: fix not locked access to fixed buf table
io_uring: fix races with buffer table unregister
...
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>
Pull writeback and ext2 fixes from Jan Kara:
"A fix for writeback bug which prevented machines with kdevtmpfs from
booting and also one small ext2 bugfix in IO error handling"
* tag 'fs_for_v5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
init: Initialize noop_backing_dev_info early
ext2: fix fs corruption when trying to remove a non-empty directory with IO error
accounting for abnormal IO (e.g. discards, write zeroes, etc).
- Fix a use-after-free in DM core's dm_put_live_table_bio.
- Fix a race for REQ_NOWAIT bios being issued despite no support from
underlying DM targets (due to DM table reload at an "unlucky" time)
- Fix access beyond allocated bitmap in DM mirror's log.
-----BEGIN PGP SIGNATURE-----
iQEzBAABCAAdFiEEJfWUX4UqZ4x1O2wixSPxCi2dA1oFAmKsqKQACgkQxSPxCi2d
A1rSXwf+PvYtiZmtwiDEkHpJeRbSBfxZQDvY5oZs9OhHHvm/5+/NUk9SPSfhc4Uj
6oeCcQYkh1Si+8MkOcCuMij9uiUrXG6SSD97UQ9v9DJg+scpbTDJHDkHtfryuc/Z
y4kTQH1usHAKQhbsBlh9QR+iepf58EJ0i1aWXB8hmePkBdWM1qkrdzx66GZWh7Qe
YaOQ4N1QMWdKYiECkDR/nB7k1yetd6WYix6oGEojj0v2UfqcKEvkxE5jmcdeoZk6
g/i1j78D/gKrBJFsAvfN/mcnx8Fl2349p6ZpO9lPT4jv6CuhO2ewsoZmYdZEnM0/
XEIvSZN6G5Dl7wsvaptZUmCVJCaBrg==
=T2jQ
-----END PGP SIGNATURE-----
Merge tag 'for-5.19/dm-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- Fix a race in DM core's dm_start_io_acct that could result in double
accounting for abnormal IO (e.g. discards, write zeroes, etc).
- Fix a use-after-free in DM core's dm_put_live_table_bio.
- Fix a race for REQ_NOWAIT bios being issued despite no support from
underlying DM targets (due to DM table reload at an "unlucky" time)
- Fix access beyond allocated bitmap in DM mirror's log.
* tag 'for-5.19/dm-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm mirror log: round up region bitmap size to BITS_PER_LONG
dm: fix narrow race for REQ_NOWAIT bios being issued despite no support
dm: fix use-after-free in dm_put_live_table_bio
dm: fix race in dm_start_io_acct
* Add missing lock protection in occ driver
* Add missing comma in board name list in asus-ec-sensors driver
* Fix devicetree bindings for ti,tmp401
-----BEGIN PGP SIGNATURE-----
iQIzBAABCAAdFiEEiHPvMQj9QTOCiqgVyx8mb86fmYEFAmKsh2wACgkQyx8mb86f
mYEuHxAAj7lbwk6oedTFsHu55sZ7jKZn0/i3wGVd6vv1fZewEU6jKhhClALTK0yh
NwzBO7XaM5AO95o29FLOM1rZ3PTPIbfefnAWsyh68ZziDkkbtRCb/ySYGBhHQPwL
eT3ab7b+Xc0tZURnLsrYXbA4zKe9+0IG0xOgkjM7YFEMLnrzt5ysB69Vi4jSS/ec
n4a/z4lqHply5UvB2UKS4+GqznxEVtu70PhjUn0oI1qRlZHKrtvr9+IwOKWJ0jeI
u/dK5lEZYvbeBHksOiuqzlJigWpQo8lgbKMrI4K0jXF1XmqJsycVKZCffi0yCODg
SXA6ajpbN8e/v7r8aDvl9chvJZ7j05yXeU4Zggap9TTO9Va4FZfH2XnWwKXribNq
1/KtB31z+4EYxupgeaYbVil8kfvkBkCDsEkbTVBc4iitFoWYX5Wi1h7ymHO/HDhI
Cjefj2xc9cW5J+RslR52JJvPxtu+sztSAkvjxwe5ahQxa9Fu8P2cZax8n6rwLexb
mlTH00gHC6atx16N754ERr9q0eziWlnz/9HV3Lne3SM5y39XcGI8eOaP3sj7nfYl
evakMXgq65eIZpL8P2vWX6OsEAc3OuKM1UuEhGUKawdSNyAuczoCJ6ntMOpla3Pj
lBw3RE2Hs1K18NJ5B+oZ3qzPVddPWs5kU17usCO9ps7wTpM3z+E=
=0ZUU
-----END PGP SIGNATURE-----
Merge tag 'hwmon-for-v5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
- Add missing lock protection in occ driver
- Add missing comma in board name list in asus-ec-sensors driver
- Fix devicetree bindings for ti,tmp401
* tag 'hwmon-for-v5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (asus-ec-sensors) add missing comma in board name list.
hwmon: (occ) Lock mutex in shutdown to prevent race with occ_active
dt-bindings: hwmon: ti,tmp401: Drop 'items' from 'ti,n-factor' property
Here are some small char/misc driver fixes for 5.19-rc3 that resolve
some reported issues.
They include:
- mei driver fixes
- comedi driver fix
- rtsx build warning fix
- fsl-mc-bus driver fix
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCYqw0eA8cZ3JlZ0Brcm9h
aC5jb20ACgkQMUfUDdst+ymH0wCggIbJo3/FVzs98oMUfx4bGdnu49kAniZpSOrn
r7dKZ9o8wk11bvsqEEzn
=KEHD
-----END PGP SIGNATURE-----
Merge tag 'char-misc-5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are some small char/misc driver fixes for 5.19-rc3 that resolve
some reported issues.
They include:
- mei driver fixes
- comedi driver fix
- rtsx build warning fix
- fsl-mc-bus driver fix
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
eeprom: at25: Split reads into chunks and cap write size
misc: atmel-ssc: Fix IRQ check in ssc_probe
char: lp: remove redundant initialization of err
Here are some small staging driver fixes for 5.19-rc3 that resolve
reported issues:
- remove visorbus.h which was forgotten in the -rc1 merge where
the code that used it was removed
- olpc_dcon: mark as broken to allow the DRM developers to
evolve the fbdev api properly without having to deal with this
obsolete driver. It will be removed soon if no one steps up
to adopt it and fix the issues with it.
- rtl8723bs driver fix
- r8188eu driver fix to resolve many reports of the driver being
broken with -rc1.
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCYqw2dg8cZ3JlZ0Brcm9h
aC5jb20ACgkQMUfUDdst+ykY6QCgzUwdyqocj7nOf3Da5YwR6BDtzkQAoKLt/n9K
oIlFPe4jmIQiOp9r6azu
=Yo7Q
-----END PGP SIGNATURE-----
Merge tag 'staging-5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver fixes from Greg KH:
"Here are some small staging driver fixes for 5.19-rc3 that resolve
reported issues:
- remove visorbus.h which was forgotten in the -rc1 merge where the
code that used it was removed
- olpc_dcon: mark as broken to allow the DRM developers to evolve the
fbdev api properly without having to deal with this obsolete
driver. It will be removed soon if no one steps up to adopt it and
fix the issues with it.
- rtl8723bs driver fix
- r8188eu driver fix to resolve many reports of the driver being
broken with -rc1.
All of these have been in linux-next for a while with no reported
issues"
* tag 'staging-5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: Also remove the Unisys visorbus.h
staging: rtl8723bs: Allocate full pwep structure
staging: olpc_dcon: mark driver as broken
staging: r8188eu: Fix warning of array overflow in ioctl_linux.c
staging: r8188eu: fix rtw_alloc_hwxmits error detection for now
