linux-2.6-microblaze.git
2 years agoext4: Move orphan inode handling into a separate file
Jan Kara [Mon, 16 Aug 2021 09:57:05 +0000 (11:57 +0200)]
ext4: Move orphan inode handling into a separate file

Move functions for handling orphan inodes into a new file
fs/ext4/orphan.c to have them in one place and somewhat reduce size of
other files. No code changes.

Reviewed-by: Andreas Dilger <adilger@dilger.ca>
Reviewed-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20210816095713.16537-2-jack@suse.cz
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2 years agoext4: Support for checksumming from journal triggers
Jan Kara [Mon, 16 Aug 2021 09:57:04 +0000 (11:57 +0200)]
ext4: Support for checksumming from journal triggers

JBD2 layer support triggers which are called when journaling layer moves
buffer to a certain state. We can use the frozen trigger, which gets
called when buffer data is frozen and about to be written out to the
journal, to compute block checksums for some buffer types (similarly as
does ocfs2). This avoids unnecessary repeated recomputation of the
checksum (at the cost of larger window where memory corruption won't be
caught by checksumming) and is even necessary when there are
unsynchronized updaters of the checksummed data.

So add superblock and journal trigger type arguments to
ext4_journal_get_write_access() and ext4_journal_get_create_access() so
that frozen triggers can be set accordingly. Also add inode argument to
ext4_walk_page_buffers() and all the callbacks used with that function
for the same purpose. This patch is mostly only a change of prototype of
the above mentioned functions and a few small helpers. Real checksumming
will come later.

Reviewed-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20210816095713.16537-1-jack@suse.cz
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2 years agoext4: fix race writing to an inline_data file while its xattrs are changing
Theodore Ts'o [Sat, 21 Aug 2021 03:44:17 +0000 (23:44 -0400)]
ext4: fix race writing to an inline_data file while its xattrs are changing

The location of the system.data extended attribute can change whenever
xattr_sem is not taken.  So we need to recalculate the i_inline_off
field since it mgiht have changed between ext4_write_begin() and
ext4_write_end().

This means that caching i_inline_off is probably not helpful, so in
the long run we should probably get rid of it and shrink the in-memory
ext4 inode slightly, but let's fix the race the simple way for now.

Cc: stable@kernel.org
Fixes: f19d5870cbf72 ("ext4: add normal write support for inline data")
Reported-by: syzbot+13146364637c7363a7de@syzkaller.appspotmail.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2 years agojbd2: add sparse annotations for add_transaction_credits()
Theodore Ts'o [Sat, 14 Aug 2021 14:54:09 +0000 (10:54 -0400)]
jbd2: add sparse annotations for add_transaction_credits()

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2 years agoext4: fix sparse warnings
Theodore Ts'o [Sat, 14 Aug 2021 14:41:30 +0000 (10:41 -0400)]
ext4: fix sparse warnings

Add sparse annotations to suppress false positive context imbalance
warnings, and use NULL instead of 0 in EXT_MAX_{EXTENT,INDEX}.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2 years agoext4: Make sure quota files are not grabbed accidentally
Jan Kara [Thu, 12 Aug 2021 13:31:22 +0000 (15:31 +0200)]
ext4: Make sure quota files are not grabbed accidentally

If ext4 filesystem is corrupted so that quota files are linked from
directory hirerarchy, bad things can happen. E.g. quota files can get
corrupted or deleted. Make sure we are not grabbing quota file inodes
when we expect normal inodes.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Link: https://lore.kernel.org/r/20210812133122.26360-1-jack@suse.cz
2 years agoext4: fix e2fsprogs checksum failure for mounted filesystem
Jan Kara [Thu, 12 Aug 2021 12:47:37 +0000 (14:47 +0200)]
ext4: fix e2fsprogs checksum failure for mounted filesystem

Commit 81414b4dd48 ("ext4: remove redundant sb checksum
recomputation") removed checksum recalculation after updating
superblock free space / inode counters in ext4_fill_super() based on
the fact that we will recalculate the checksum on superblock
writeout.

That is correct assumption but until the writeout happens (which can
take a long time) the checksum is incorrect in the buffer cache and if
programs such as tune2fs or resize2fs is called shortly after a file
system is mounted can fail.  So return back the checksum recalculation
and add a comment explaining why.

Fixes: 81414b4dd48f ("ext4: remove redundant sb checksum recomputation")
Cc: stable@kernel.org
Reported-by: Boyang Xue <bxue@redhat.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Link: https://lore.kernel.org/r/20210812124737.21981-1-jack@suse.cz
2 years agoext4: if zeroout fails fall back to splitting the extent node
Theodore Ts'o [Fri, 13 Aug 2021 15:20:48 +0000 (11:20 -0400)]
ext4: if zeroout fails fall back to splitting the extent node

If the underlying storage device is using thin-provisioning, it's
possible for a zeroout operation to return ENOSPC.

Commit df22291ff0fd ("ext4: Retry block allocation if we have free blocks
left") added logic to retry block allocation since we might get free block
after we commit a transaction. But the ENOSPC from thin-provisioning
will confuse ext4, and lead to an infinite loop.

Since using zeroout instead of splitting the extent node is an
optimization, if it fails, we might as well fall back to splitting the
extent node.

Reported-by: yangerkun <yangerkun@huawei.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2 years agoext4: reduce arguments of ext4_fc_add_dentry_tlv
Guoqing Jiang [Tue, 27 Jul 2021 08:07:08 +0000 (16:07 +0800)]
ext4: reduce arguments of ext4_fc_add_dentry_tlv

Let's pass fc_dentry directly since those arguments (tag, parent_ino and
ino etc) can be deferenced from it.

Signed-off-by: Guoqing Jiang <jiangguoqing@kylinos.cn>
Reviewed-by: Harshad Shirwadkar <harshadshirwadkar@gmail.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Link: https://lore.kernel.org/r/20210727080708.3708814-1-guoqing.jiang@linux.dev
2 years agoext4: flush background discard kwork when retry allocation
Wang Jianchao [Mon, 30 Aug 2021 07:52:46 +0000 (15:52 +0800)]
ext4: flush background discard kwork when retry allocation

The background discard kwork tries to mark blocks used and issue
discard. This can make filesystem suffer from NOSPC error, xfstest
generic/371 can fail due to it. Fix it by flushing discard kwork
in ext4_should_retry_alloc. At the same time, give up discard at
the moment.

Signed-off-by: Wang Jianchao <wangjianchao@kuaishou.com>
Link: https://lore.kernel.org/r/20210830075246.12516-6-jianchao.wan9@gmail.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2 years agoext4: get discard out of jbd2 commit kthread contex
Wang Jianchao [Sat, 24 Jul 2021 07:41:23 +0000 (15:41 +0800)]
ext4: get discard out of jbd2 commit kthread contex

Right now, discard is issued and waited to be completed in jbd2
commit kthread context after the logs are committed. When large
amount of files are deleted and discard is flooding, jbd2 commit
kthread can be blocked for long time. Then all of the metadata
operations can be blocked to wait the log space.

One case is the page fault path with read mm->mmap_sem held, which
wants to update the file time but has to wait for the log space.
When other threads in the task wants to do mmap, then write mmap_sem
is blocked. Finally all of the following read mmap_sem requirements
are blocked, even the ps command which need to read the /proc/pid/
-cmdline. Our monitor service which needs to read /proc/pid/cmdline
used to be blocked for 5 mins.

This patch frees the blocks back to buddy after commit and then do
discard in a async kworker context in fstrim fashion, namely,
 - mark blocks to be discarded as used if they have not been allocated
 - do discard
 - mark them free
After this, jbd2 commit kthread won't be blocked any more by discard
and we won't get NOSPC even if the discard is slow or throttled.

Link: https://marc.info/?l=linux-kernel&m=162143690731901&w=2
Suggested-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Wang Jianchao <wangjianchao@kuaishou.com>
Link: https://lore.kernel.org/r/20210830075246.12516-5-jianchao.wan9@gmail.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2 years agoext4: remove the repeated comment of ext4_trim_all_free
Wang Jianchao [Sat, 24 Jul 2021 07:41:22 +0000 (15:41 +0800)]
ext4: remove the repeated comment of ext4_trim_all_free

Reviewed-by: Andreas Dilger <adilger@dilger.ca>
Signed-off-by: Wang Jianchao <wangjianchao@kuaishou.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20210724074124.25731-4-jianchao.wan9@gmail.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2 years agoext4: add new helper interface ext4_try_to_trim_range()
Wang Jianchao [Sat, 24 Jul 2021 07:41:21 +0000 (15:41 +0800)]
ext4: add new helper interface ext4_try_to_trim_range()

There is no functional change in this patch but just split the
codes, which serachs free block and does trim, into a new function
ext4_try_to_trim_range. This is preparing for the following async
backgroup discard.

Reviewed-by: Andreas Dilger <adilger@dilger.ca>
Signed-off-by: Wang Jianchao <wangjianchao@kuaishou.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20210724074124.25731-3-jianchao.wan9@gmail.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2 years agoext4: remove the 'group' parameter of ext4_trim_extent
Wang Jianchao [Sat, 24 Jul 2021 07:41:20 +0000 (15:41 +0800)]
ext4: remove the 'group' parameter of ext4_trim_extent

Get rid of the 'group' parameter of ext4_trim_extent as we can get
it from the 'e4b'.

Reviewed-by: Andreas Dilger <adilger@dilger.ca>
Signed-off-by: Wang Jianchao <wangjianchao@kuaishou.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20210724074124.25731-2-jianchao.wan9@gmail.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2 years agojbd2: clean up two gcc -Wall warnings in recovery.c
Theodore Ts'o [Tue, 10 Aug 2021 18:02:33 +0000 (14:02 -0400)]
jbd2: clean up two gcc -Wall warnings in recovery.c

Fix a signed vs unsigned and a void * pointer arithmetic warning.

This cleanup is also in e2fsprogs commit aec460db9a93 ("e2fsck: clean
up two gcc -Wall warnings in recovery.c").

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2 years agojbd2: fix clang warning in recovery.c
Theodore Ts'o [Tue, 10 Aug 2021 16:55:51 +0000 (12:55 -0400)]
jbd2: fix clang warning in recovery.c

Remove unused variable store which was never used.

This fix is also in e2fsprogs commit 99a2294f85f0 ("e2fsck: value
stored to err is never read").

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2 years agojbd2: fix portability problems caused by unaligned accesses
Theodore Ts'o [Mon, 3 May 2021 19:37:33 +0000 (15:37 -0400)]
jbd2: fix portability problems caused by unaligned accesses

This commit applies the e2fsck/recovery.c portions of commit
1e0c8ca7c08a ("e2fsck: fix portability problems caused by unaligned
accesses) from the e2fsprogs git tree.

The on-disk format for the ext4 journal can have unaigned 32-bit
integers.  This can happen when replaying a journal using a obsolete
checksum format (which was never popularly used, since the v3 format
replaced v2 while the metadata checksum feature was being stablized).

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2 years agoext4: fix potential htree corruption when growing large_dir directories
Theodore Ts'o [Wed, 4 Aug 2021 18:23:55 +0000 (14:23 -0400)]
ext4: fix potential htree corruption when growing large_dir directories

Commit b5776e7524af ("ext4: fix potential htree index checksum
corruption) removed a required restart when multiple levels of index
nodes need to be split.  Fix this to avoid directory htree corruptions
when using the large_dir feature.

Cc: stable@kernel.org # v5.11
Cc: Благодаренко Артём <artem.blagodarenko@gmail.com>
Fixes: b5776e7524af ("ext4: fix potential htree index checksum corruption)
Reported-by: Denis <denis@voxelsoft.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2 years agoext4: remove conflicting comment from __ext4_forget
Guoqing Jiang [Wed, 14 Jul 2021 05:59:40 +0000 (13:59 +0800)]
ext4: remove conflicting comment from __ext4_forget

We do a bforget and return for no journal case, so let's remove this
conflict comment.

Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Guoqing Jiang <jiangguoqing@kylinos.cn>
Link: https://lore.kernel.org/r/20210714055940.1553705-1-guoqing.jiang@linux.dev
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2 years agoext4: fix potential uninitialized access to retval in kmmpd
Ye Bin [Tue, 13 Jul 2021 02:27:28 +0000 (10:27 +0800)]
ext4: fix potential uninitialized access to retval in kmmpd

if (!ext4_has_feature_mmp(sb)) then retval can be unitialized before
we jump to the wait_to_exit label.

Fixes: 61bb4a1c417e ("ext4: fix possible UAF when remounting r/o a mmp-protected file system")
Signed-off-by: Ye Bin <yebin10@huawei.com>
Link: https://lore.kernel.org/r/20210713022728.2533770-1-yebin10@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2 years agoLinux 5.14-rc2
Linus Torvalds [Sun, 18 Jul 2021 21:13:49 +0000 (14:13 -0700)]
Linux 5.14-rc2

2 years agoMerge tag 'perf-tools-fixes-for-v5.14-2021-07-18' of git://git.kernel.org/pub/scm...
Linus Torvalds [Sun, 18 Jul 2021 19:20:27 +0000 (12:20 -0700)]
Merge tag 'perf-tools-fixes-for-v5.14-2021-07-18' of git://git./linux/kernel/git/acme/linux

Pull perf tools fixes from Arnaldo Carvalho de Melo:

 - Skip invalid hybrid PMU on hybrid systems when the atom (little) CPUs
   are offlined.

 - Fix 'perf test' problems related to the recently added hybrid
   (BIG/little) code.

 - Split ARM's coresight (hw tracing) decode by aux records to avoid
   fatal decoding errors.

 - Fix add event failure in 'perf probe' when running 32-bit perf in a
   64-bit kernel.

 - Fix 'perf sched record' failure when CONFIG_SCHEDSTATS is not set.

 - Fix memory and refcount leaks detected by ASAn when running 'perf
   test', should be clean of warnings now.

 - Remove broken definition of __LITTLE_ENDIAN from tools'
   linux/kconfig.h, which was breaking the build in some systems.

 - Cast PTHREAD_STACK_MIN to int as it may turn into 'long
   sysconf(__SC_THREAD_STACK_MIN_VALUE), breaking the build in some
   systems.

 - Fix libperf build error with LIBPFM4=1.

 - Sync UAPI files changed by the memfd_secret new syscall.

* tag 'perf-tools-fixes-for-v5.14-2021-07-18' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (35 commits)
  perf sched: Fix record failure when CONFIG_SCHEDSTATS is not set
  perf probe: Fix add event failure when running 32-bit perf in a 64-bit kernel
  perf data: Close all files in close_dir()
  perf probe-file: Delete namelist in del_events() on the error path
  perf test bpf: Free obj_buf
  perf trace: Free strings in trace__parse_events_option()
  perf trace: Free syscall tp fields in evsel->priv
  perf trace: Free syscall->arg_fmt
  perf trace: Free malloc'd trace fields on exit
  perf lzma: Close lzma stream on exit
  perf script: Fix memory 'threads' and 'cpus' leaks on exit
  perf script: Release zstd data
  perf session: Cleanup trace_event
  perf inject: Close inject.output on exit
  perf report: Free generated help strings for sort option
  perf env: Fix memory leak of cpu_pmu_caps
  perf test maps__merge_in: Fix memory leak of maps
  perf dso: Fix memory leak in dso__new_map()
  perf test event_update: Fix memory leak of unit
  perf test event_update: Fix memory leak of evlist
  ...

2 years agoMerge tag 'xfs-5.14-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Linus Torvalds [Sun, 18 Jul 2021 18:27:25 +0000 (11:27 -0700)]
Merge tag 'xfs-5.14-fixes-1' of git://git./fs/xfs/xfs-linux

Pull xfs fixes from Darrick Wong:
 "A few fixes for issues in the new online shrink code, additional
  corrections for my recent bug-hunt w.r.t. extent size hints on
  realtime, and improved input checking of the GROWFSRT ioctl.

  IOW, the usual 'I somehow got bored during the merge window and
  resumed auditing the farther reaches of xfs':

   - Fix shrink eligibility checking when sparse inode clusters enabled

   - Reset '..' directory entries when unlinking directories to prevent
     verifier errors if fs is shrinked later

   - Don't report unusable extent size hints to FSGETXATTR

   - Don't warn when extent size hints are unusable because the sysadmin
     configured them that way

   - Fix insufficient parameter validation in GROWFSRT ioctl

   - Fix integer overflow when adding rt volumes to filesystem"

* tag 'xfs-5.14-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: detect misaligned rtinherit directory extent size hints
  xfs: fix an integer overflow error in xfs_growfs_rt
  xfs: improve FSGROWFSRT precondition checking
  xfs: don't expose misaligned extszinherit hints to userspace
  xfs: correct the narrative around misaligned rtinherit/extszinherit dirs
  xfs: reset child dir '..' entry when unlinking child
  xfs: check for sparse inode clusters that cross new EOAG when shrinking

2 years agoMerge tag 'iomap-5.14-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Linus Torvalds [Sun, 18 Jul 2021 18:17:06 +0000 (11:17 -0700)]
Merge tag 'iomap-5.14-fixes-1' of git://git./fs/xfs/xfs-linux

Pull iomap fixes from Darrick Wong:
 "A handful of bugfixes for the iomap code.

  There's nothing especially exciting here, just fixes for UBSAN (not
  KASAN as I erroneously wrote in the tag message) warnings about
  undefined behavior in the SEEK_DATA/SEEK_HOLE code, and some
  reshuffling of per-page block state info to fix some problems with
  gfs2.

   - Fix KASAN warnings due to integer overflow in SEEK_DATA/SEEK_HOLE

   - Fix assertion errors when using inlinedata files on gfs2"

* tag 'iomap-5.14-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  iomap: Don't create iomap_page objects in iomap_page_mkwrite_actor
  iomap: Don't create iomap_page objects for inline files
  iomap: Permit pages without an iop to enter writeback
  iomap: remove the length variable in iomap_seek_hole
  iomap: remove the length variable in iomap_seek_data

2 years agoMerge tag 'kbuild-fixes-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/masah...
Linus Torvalds [Sun, 18 Jul 2021 18:10:30 +0000 (11:10 -0700)]
Merge tag 'kbuild-fixes-v5.14' of git://git./linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - Restore the original behavior of scripts/setlocalversion when
   LOCALVERSION is set to empty.

 - Show Kconfig prompts even for 'make -s'

 - Fix the combination of COFNIG_LTO_CLANG=y and CONFIG_MODVERSIONS=y
   for older GNU Make versions

* tag 'kbuild-fixes-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  Documentation: Fix intiramfs script name
  Kbuild: lto: fix module versionings mismatch in GNU make 3.X
  kbuild: do not suppress Kconfig prompts for silent build
  scripts/setlocalversion: fix a bug when LOCALVERSION is empty

2 years agoDocumentation: Fix intiramfs script name
Robert Richter [Thu, 15 Jul 2021 09:26:02 +0000 (11:26 +0200)]
Documentation: Fix intiramfs script name

Documentation was not changed when renaming the script in commit
80e715a06c2d ("initramfs: rename gen_initramfs_list.sh to
gen_initramfs.sh"). Fixing this.

Basically does:

 $ sed -i -e s/gen_initramfs_list.sh/gen_initramfs.sh/g $(git grep -l gen_initramfs_list.sh)

Fixes: 80e715a06c2d ("initramfs: rename gen_initramfs_list.sh to gen_initramfs.sh")
Signed-off-by: Robert Richter <rrichter@amd.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2 years agoKbuild: lto: fix module versionings mismatch in GNU make 3.X
Lecopzer Chen [Thu, 15 Jul 2021 07:37:16 +0000 (15:37 +0800)]
Kbuild: lto: fix module versionings mismatch in GNU make 3.X

When building modules(CONFIG_...=m), I found some of module versions
are incorrect and set to 0.
This can be found in build log for first clean build which shows

WARNING: EXPORT symbol "XXXX" [drivers/XXX/XXX.ko] version generation failed,
symbol will not be versioned.

But in second build(incremental build), the WARNING disappeared and the
module version becomes valid CRC and make someone who want to change
modules without updating kernel image can't insert their modules.

The problematic code is
+ $(foreach n, $(filter-out FORCE,$^), \
+ $(if $(wildcard $(n).symversions), \
+ ; cat $(n).symversions >> $@.symversions))

For example:
  rm -f fs/notify/built-in.a.symversions    ; rm -f fs/notify/built-in.a; \
llvm-ar cDPrST fs/notify/built-in.a fs/notify/fsnotify.o \
fs/notify/notification.o fs/notify/group.o ...

`foreach n` shows nothing to `cat` into $(n).symversions because
`if $(wildcard $(n).symversions)` return nothing, but actually
they do exist during this line was executed.

-rw-r--r-- 1 root root 168580 Jun 13 19:10 fs/notify/fsnotify.o
-rw-r--r-- 1 root root    111 Jun 13 19:10 fs/notify/fsnotify.o.symversions

The reason is the $(n).symversions are generated at runtime, but
Makefile wildcard function expends and checks the file exist or not
during parsing the Makefile.

Thus fix this by use `test` shell command to check the file
existence in runtime.

Rebase from both:
1. [https://lore.kernel.org/lkml/20210616080252.32046-1-lecopzer.chen@mediatek.com/]
2. [https://lore.kernel.org/lkml/20210702032943.7865-1-lecopzer.chen@mediatek.com/]

Fixes: 38e891849003 ("kbuild: lto: fix module versioning")
Co-developed-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Lecopzer Chen <lecopzer.chen@mediatek.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2 years agokbuild: do not suppress Kconfig prompts for silent build
Masahiro Yamada [Wed, 14 Jul 2021 04:23:49 +0000 (13:23 +0900)]
kbuild: do not suppress Kconfig prompts for silent build

When a new CONFIG option is available, Kbuild shows a prompt to get
the user input.

  $ make
  [ snip ]
  Core Scheduling for SMT (SCHED_CORE) [N/y/?] (NEW)

This is the only interactive place in the build process.

Commit 174a1dcc9642 ("kbuild: sink stdout from cmd for silent build")
suppressed Kconfig prompts as well because syncconfig is invoked by
the 'cmd' macro. You cannot notice the fact that Kconfig is waiting
for the user input.

Use 'kecho' to show the equivalent short log without suppressing stdout
from sub-make.

Fixes: 174a1dcc9642 ("kbuild: sink stdout from cmd for silent build")
Reported-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
2 years agoscripts/setlocalversion: fix a bug when LOCALVERSION is empty
Mikulas Patocka [Mon, 12 Jul 2021 19:35:46 +0000 (15:35 -0400)]
scripts/setlocalversion: fix a bug when LOCALVERSION is empty

The commit 042da426f8eb ("scripts/setlocalversion: simplify the short
version part") reduces indentation. Unfortunately, it also changes behavior
in a subtle way - if the user has empty "LOCALVERSION" variable, the plus
sign is appended to the kernel version. It wasn't appended before.

This patch reverts to the old behavior - we append the plus sign only if
the LOCALVERSION variable is not set.

Fixes: 042da426f8eb ("scripts/setlocalversion: simplify the short version part")
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2 years agoperf sched: Fix record failure when CONFIG_SCHEDSTATS is not set
Yang Jihong [Tue, 13 Jul 2021 11:23:58 +0000 (19:23 +0800)]
perf sched: Fix record failure when CONFIG_SCHEDSTATS is not set

The tracepoints trace_sched_stat_{wait, sleep, iowait} are not exposed to user
if CONFIG_SCHEDSTATS is not set, "perf sched record" records the three events.
As a result, the command fails.

Before:

  #perf sched record sleep 1
  event syntax error: 'sched:sched_stat_wait'
                       \___ unknown tracepoint

  Error:  File /sys/kernel/tracing/events/sched/sched_stat_wait not found.
  Hint:   Perhaps this kernel misses some CONFIG_ setting to enable this feature?.

  Run 'perf list' for a list of valid events

   Usage: perf record [<options>] [<command>]
      or: perf record [<options>] -- <command> [<options>]

      -e, --event <event>   event selector. use 'perf list' to list available events

Solution:
  Check whether schedstat tracepoints are exposed. If no, these events are not recorded.

After:
  # perf sched record sleep 1
  [ perf record: Woken up 1 times to write data ]
  [ perf record: Captured and wrote 0.163 MB perf.data (1091 samples) ]
  # perf sched report
  run measurement overhead: 4736 nsecs
  sleep measurement overhead: 9059979 nsecs
  the run test took 999854 nsecs
  the sleep test took 8945271 nsecs
  nr_run_events:        716
  nr_sleep_events:      785
  nr_wakeup_events:     0
  ...
  ------------------------------------------------------------

Fixes: 2a09b5de235a6 ("sched/fair: do not expose some tracepoints to user if CONFIG_SCHEDSTATS is not set")
Signed-off-by: Yang Jihong <yangjihong1@huawei.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Yafang Shao <laoar.shao@gmail.com>
Link: http://lore.kernel.org/lkml/20210713112358.194693-1-yangjihong1@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf probe: Fix add event failure when running 32-bit perf in a 64-bit kernel
Yang Jihong [Thu, 15 Jul 2021 06:37:23 +0000 (14:37 +0800)]
perf probe: Fix add event failure when running 32-bit perf in a 64-bit kernel

The "address" member of "struct probe_trace_point" uses long data type.
If kernel is 64-bit and perf program is 32-bit, size of "address"
variable is 32 bits.

As a result, upper 32 bits of address read from kernel are truncated, an
error occurs during address comparison in kprobe_warn_out_range().

Before:

  # perf probe -a schedule
  schedule is out of .text, skip it.
    Error: Failed to add events.

Solution:
  Change data type of "address" variable to u64 and change corresponding
address printing and value assignment.

After:

  # perf.new.new probe -a schedule
  Added new event:
    probe:schedule       (on schedule)

  You can now use it in all perf tools, such as:

          perf record -e probe:schedule -aR sleep 1

  # perf probe -l
    probe:schedule       (on schedule@kernel/sched/core.c)
  # perf record -e probe:schedule -aR sleep 1
  [ perf record: Woken up 1 times to write data ]
  [ perf record: Captured and wrote 0.156 MB perf.data (1366 samples) ]
  # perf report --stdio
  # To display the perf.data header info, please use --header/--header-only options.
  #
  #
  # Total Lost Samples: 0
  #
  # Samples: 1K of event 'probe:schedule'
  # Event count (approx.): 1366
  #
  # Overhead  Command          Shared Object      Symbol
  # ........  ...............  .................  ............
  #
       6.22%  migration/0      [kernel.kallsyms]  [k] schedule
       6.22%  migration/1      [kernel.kallsyms]  [k] schedule
       6.22%  migration/2      [kernel.kallsyms]  [k] schedule
       6.22%  migration/3      [kernel.kallsyms]  [k] schedule
       6.15%  migration/10     [kernel.kallsyms]  [k] schedule
       6.15%  migration/11     [kernel.kallsyms]  [k] schedule
       6.15%  migration/12     [kernel.kallsyms]  [k] schedule
       6.15%  migration/13     [kernel.kallsyms]  [k] schedule
       6.15%  migration/14     [kernel.kallsyms]  [k] schedule
       6.15%  migration/15     [kernel.kallsyms]  [k] schedule
       6.15%  migration/4      [kernel.kallsyms]  [k] schedule
       6.15%  migration/5      [kernel.kallsyms]  [k] schedule
       6.15%  migration/6      [kernel.kallsyms]  [k] schedule
       6.15%  migration/7      [kernel.kallsyms]  [k] schedule
       6.15%  migration/8      [kernel.kallsyms]  [k] schedule
       6.15%  migration/9      [kernel.kallsyms]  [k] schedule
       0.22%  rcu_sched        [kernel.kallsyms]  [k] schedule
  ...
  #
  # (Cannot load tips.txt file, please install perf!)
  #

Signed-off-by: Yang Jihong <yangjihong1@huawei.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Frank Ch. Eigler <fche@redhat.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jianlin Lv <jianlin.lv@arm.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Li Huafei <lihuafei1@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Link: http://lore.kernel.org/lkml/20210715063723.11926-1-yangjihong1@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf data: Close all files in close_dir()
Riccardo Mancini [Fri, 16 Jul 2021 14:11:20 +0000 (16:11 +0200)]
perf data: Close all files in close_dir()

When using 'perf report' in directory mode, the first file is not closed
on exit, causing a memory leak.

The problem is caused by the iterating variable never reaching 0.

Fixes: 145520631130bd64 ("perf data: Add perf_data__(create_dir|close_dir) functions")
Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Zhen Lei <thunder.leizhen@huawei.com>
Link: http://lore.kernel.org/lkml/20210716141122.858082-1-rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf probe-file: Delete namelist in del_events() on the error path
Riccardo Mancini [Thu, 15 Jul 2021 16:07:25 +0000 (18:07 +0200)]
perf probe-file: Delete namelist in del_events() on the error path

ASan reports some memory leaks when running:

  # perf test "42: BPF filter"

This second leak is caused by a strlist not being dellocated on error
inside probe_file__del_events.

This patch adds a goto label before the deallocation and makes the error
path jump to it.

Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Fixes: e7895e422e4da63d ("perf probe: Split del_perf_probe_events()")
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/174963c587ae77fa108af794669998e4ae558338.1626343282.git.rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoMerge tag 'soc-fixes-5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Linus Torvalds [Sat, 17 Jul 2021 22:58:24 +0000 (15:58 -0700)]
Merge tag 'soc-fixes-5.14-1' of git://git./linux/kernel/git/soc/soc

Pull ARM SoC fixes from Arnd Bergmann:
 "Here are the patches for this week that came as the fallout of the
  merge window:

   - Two fixes for the NVidia memory controller driver

   - multiple defconfig files get patched to turn CONFIG_FB back on
     after that is no longer selected by CONFIG_DRM

   - ffa and scmpi firmware drivers fixes, mostly addressing compiler
     and documentation warnings

   - Platform specific fixes for device tree files on ASpeed, Renesas
     and NVidia SoC, mostly for recent regressions.

   - A workaround for a regression on the USB PHY with devlink when the
     usb-nop-xceiv driver is not available until the rootfs is mounted.

   - Device tree compiler warnings in Arm Versatile-AB"

* tag 'soc-fixes-5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (35 commits)
  ARM: dts: versatile: Fix up interrupt controller node names
  ARM: multi_v7_defconfig: Make NOP_USB_XCEIV driver built-in
  ARM: configs: Update u8500_defconfig
  ARM: configs: Update Vexpress defconfig
  ARM: configs: Update Versatile defconfig
  ARM: configs: Update RealView defconfig
  ARM: configs: Update Integrator defconfig
  arm: Typo s/PCI_IXP4XX_LEGACY/IXP4XX_PCI_LEGACY/
  firmware: arm_scmi: Fix range check for the maximum number of pending messages
  firmware: arm_scmi: Avoid padding in sensor message structure
  firmware: arm_scmi: Fix kernel doc warnings about return values
  firmware: arm_scpi: Fix kernel doc warnings
  firmware: arm_scmi: Fix kernel doc warnings
  ARM: shmobile: defconfig: Restore graphical consoles
  firmware: arm_ffa: Fix a possible ffa_linux_errmap buffer overflow
  firmware: arm_ffa: Fix the comment style
  firmware: arm_ffa: Simplify probe function
  firmware: arm_ffa: Ensure drivers provide a probe function
  firmware: arm_scmi: Fix possible scmi_linux_errmap buffer overflow
  firmware: arm_scmi: Ensure drivers provide a probe function
  ...

2 years agoRevert "mm/slub: use stackdepot to save stack trace in objects"
Linus Torvalds [Sat, 17 Jul 2021 20:27:00 +0000 (13:27 -0700)]
Revert "mm/slub: use stackdepot to save stack trace in objects"

This reverts commit 788691464c29455346dc613a3b43c2fb9e5757a4.

It's not clear why, but it causes unexplained problems in entirely
unrelated xfs code.  The most likely explanation is some slab
corruption, possibly triggered due to CONFIG_SLUB_DEBUG_ON.  See [1].

It ends up having a few other problems too, like build errors on
arch/arc, and Geert reporting it using much more memory on m68k [3] (it
probably does so elsewhere too, but it is probably just more noticeable
on m68k).

The architecture issues (both build and memory use) are likely just
because this change effectively force-enabled STACKDEPOT (along with a
very bad default value for the stackdepot hash size).  But together with
the xfs issue, this all smells like "this commit was not ready" to me.

Link: https://lore.kernel.org/linux-xfs/YPE3l82acwgI2OiV@infradead.org/
Link: https://lore.kernel.org/lkml/202107150600.LkGNb4Vb-lkp@intel.com/
Link: https://lore.kernel.org/lkml/CAMuHMdW=eoVzM1Re5FVoEN87nKfiLmM2+Ah7eNu2KXEhCvbZyA@mail.gmail.com/
Reported-by: Christoph Hellwig <hch@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agoMerge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Linus Torvalds [Sat, 17 Jul 2021 20:09:23 +0000 (13:09 -0700)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "One core fix for an oops which can occur if the error handling thread
  fails to start for some reason and the driver is removed.

  The other fixes are all minor ones in drivers"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: ufs: core: Add missing host_lock in ufshcd_vops_setup_xfer_req()
  scsi: mpi3mr: Fix W=1 compilation warnings
  scsi: pm8001: Clean up kernel-doc and comments
  scsi: zfcp: Report port fc_security as unknown early during remote cable pull
  scsi: core: Fix bad pointer dereference when ehandler kthread is invalid
  scsi: fas216: Fix a build error
  scsi: core: Fix the documentation of the scsi_execute() time parameter

2 years agoMerge tag '5.14-rc1-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Sat, 17 Jul 2021 19:56:50 +0000 (12:56 -0700)]
Merge tag '5.14-rc1-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs fixes from Steve French:
 "Eight cifs/smb3 fixes, including three for stable.

  Three are DFS related fixes, and two to fix problems pointed out by
  static checkers"

* tag '5.14-rc1-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: do not share tcp sessions of dfs connections
  SMB3.1.1: fix mount failure to some servers when compression enabled
  cifs: added WARN_ON for all the count decrements
  cifs: fix missing null session check in mount
  cifs: handle reconnect of tcon when there is no cached dfs referral
  cifs: fix the out of range assignment to bit fields in parse_server_interfaces
  cifs: Do not use the original cruid when following DFS links for multiuser mounts
  cifs: use the expiry output of dns_query to schedule next resolution

2 years agoMerge tag 'linux-kselftest-kunit-fixes-5.14-rc2' of git://git.kernel.org/pub/scm...
Linus Torvalds [Sat, 17 Jul 2021 19:48:06 +0000 (12:48 -0700)]
Merge tag 'linux-kselftest-kunit-fixes-5.14-rc2' of git://git./linux/kernel/git/shuah/linux-kselftest

Pull kunit fixes from Shuah Khan:
 "Fixes to kunit tool and documentation:

   - fix asserts on older python versions

   - fixes to misleading error messages when TAP header format is
     incorrect or when file is missing

   - documentation fix: drop obsolete information about uml_abort
     coverage

   - remove unnecessary annotations"

* tag 'linux-kselftest-kunit-fixes-5.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  kunit: tool: Assert the version requirement
  kunit: tool: remove unnecessary "annotations" import
  Documentation: kunit: drop obsolete note about uml_abort for coverage
  kunit: tool: Fix error messages for cases of no tests and wrong TAP header

2 years agoMerge tag 'linux-kselftest-fixes-5.14-rc2' of git://git.kernel.org/pub/scm/linux...
Linus Torvalds [Sat, 17 Jul 2021 19:44:32 +0000 (12:44 -0700)]
Merge tag 'linux-kselftest-fixes-5.14-rc2' of git://git./linux/kernel/git/shuah/linux-kselftest

Pull kselftest fix from Shuah Khan:
 "A fix to memory-hotplug hot-remove test to stop spamming logs with
  dump_page() entries and slowing the system down to a crawl"

* tag 'linux-kselftest-fixes-5.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests: memory-hotplug: avoid spamming logs with dump_page(), ratio limit hot-remove error test

2 years agoMerge tag 'trace-v5.14-5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt...
Linus Torvalds [Sat, 17 Jul 2021 19:36:51 +0000 (12:36 -0700)]
Merge tag 'trace-v5.14-5' of git://git./linux/kernel/git/rostedt/linux-trace

Pull tracing fix from Steven Rostedt:
 "Fix the histogram logic from possibly crashing the kernel

  Working on the histogram code, I found that if you dereference a char
  pointer in a trace event that happens to point to user space, it can
  crash the kernel, as it does no checks of that pointer. I have code
  coming that will do this better, so just remove this ability to treat
  character pointers in trace events as stings in the histogram"

* tag 'trace-v5.14-5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing: Do not reference char * as a string in histograms

2 years agoMerge tag 'devicetree-fixes-for-5.14-1' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 17 Jul 2021 02:08:09 +0000 (19:08 -0700)]
Merge tag 'devicetree-fixes-for-5.14-1' of git://git./linux/kernel/git/robh/linux

Pull devicetree fixes from Rob Herring:

 - Drop 'resets' as required on renesas,du

 - Moving of fixed string patterns for 'properties' instead of
   'patternProperties'

 - Drop more redundant minItems/maxItems that we merged in the merge
   window

 - Indentation warning fix for sja1105

* tag 'devicetree-fixes-for-5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  dt-bindings: display: renesas,du: Make resets optional on R-Car H1
  dt-bindings: Move fixed string 'patternProperties' to 'properties'
  dt-bindings: More dropping redundant minItems/maxItems
  dt-bindings: net: dsa: sja1105: Fix indentation warnings

2 years agoMerge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Linus Torvalds [Sat, 17 Jul 2021 02:00:53 +0000 (19:00 -0700)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "The bulk of the diffstat consists of changes to our uaccess routines
  so that they fall back to bytewise copying prior to reporting complete
  failure when the initial (multi-byte) access faults.

  However, the most disappointing change here is that we've had to bump
  ARCH_DMA_MINALIGN back to 128 bytes thanks to Qualcomm's "Kryo" CPU,
  which ended up in the MSM8996 mobile SoC. Still, at least we're now
  aware of this design and one of the hardware designers confirmed the
  L2 cacheline size for us.

  Summary:

   - Fix instrumentation annotations for entry code

   - Ensure kernel MTE state is restored correctly on resume from suspend

   - Fix MTE fault from new strlen() routine

   - Fallback to byte-wise accesses on initial uaccess fault

   - Bump Clang requirement for BTI

   - Revert ARCH_DMA_MINALIGN back to 128 bytes (shakes fist at Qualcomm)"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: entry: fix KCOV suppression
  arm64: entry: add missing noinstr
  arm64: mte: fix restoration of GCR_EL1 from suspend
  arm64: Avoid premature usercopy failure
  arm64: Restrict ARM64_BTI_KERNEL to clang 12.0.0 and newer
  Revert "arm64: cache: Lower ARCH_DMA_MINALIGN to 64 (L1_CACHE_BYTES)"
  arm64: Add missing header <asm/smp.h> in two files
  arm64: fix strlen() with CONFIG_KASAN_HW_TAGS

2 years agoARM: dts: versatile: Fix up interrupt controller node names
Sudeep Holla [Thu, 1 Jul 2021 13:21:18 +0000 (14:21 +0100)]
ARM: dts: versatile: Fix up interrupt controller node names

Once the new schema interrupt-controller/arm,vic.yaml is added, we get
the below warnings:

        arch/arm/boot/dts/versatile-ab.dt.yaml:
        intc@10140000: $nodename:0: 'intc@10140000' does not match
        '^interrupt-controller(@[0-9a-f,]+)*$'

arch/arm/boot/dts/versatile-ab.dt.yaml:
intc@10140000: 'clear-mask' does not match any of the regexes

Fix the node names for the interrupt controller to conform
to the standard node name interrupt-controller@.. Also drop invalid
clear-mask property.

Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210701132118.759454-1-sudeep.holla@arm.com'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2 years agoMerge tag 'aspeed-5.14-devicetree-2' of git://git.kernel.org/pub/scm/linux/kernel...
Arnd Bergmann [Fri, 16 Jul 2021 21:04:13 +0000 (23:04 +0200)]
Merge tag 'aspeed-5.14-devicetree-2' of git://git./linux/kernel/git/joel/bmc into arm/fixes

ASPEED device tree fixes for 5.14

 - eMMC phase corrections so Tacoma and Everest can boot

 - VUART irq polarity fix for e3c246d4i, using new bindings

 - I2C address fix for Rainier power supply

 - GPIO line name fixes

* tag 'aspeed-5.14-devicetree-2' of git://git.kernel.org/pub/scm/linux/kernel/git/joel/bmc:
  ARM: dts: aspeed: everest: PSU #3 address change
  ARM: dts: everest: Add phase corrections for eMMC
  ARM: dts: tacoma: Add phase corrections for eMMC
  ARM: dts: aspeed: Update e3c246d4i vuart properties
  ARM: dts: aspeed: Fix AST2600 machines line names

Link: https://lore.kernel.org/r/CACPK8XefdPzeOUDnDgk9cHQEs-9wF_ZSPdYQRzuNOpGZTyGUKQ@mail.gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2 years agoARM: multi_v7_defconfig: Make NOP_USB_XCEIV driver built-in
Stefan Wahren [Sat, 10 Jul 2021 11:04:55 +0000 (13:04 +0200)]
ARM: multi_v7_defconfig: Make NOP_USB_XCEIV driver built-in

The usage of usb-nop-xceiv PHY on Raspberry Pi boards with BCM283x has
been a "regression source" a lot of times. The last case is breakage of
USB mass storage boot has been commit e590474768f1 ("driver core: Set
fw_devlink=on by default") for multi_v7_defconfig. As long as
NOP_USB_XCEIV is configured as module, the dwc2 USB driver defer probing
endlessly and prevent booting from USB mass storage device. So make
the driver built-in as in bcm2835_defconfig and arm64/defconfig.

Fixes: e590474768f1 ("driver core: Set fw_devlink=on by default")
Reported-by: Ojaswin Mujoo <ojaswin98@gmail.com>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Link: https://lore.kernel.org/r/1625915095-23077-1-git-send-email-stefan.wahren@i2se.com'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2 years agoARM: configs: Update u8500_defconfig
Linus Walleij [Mon, 12 Jul 2021 08:55:22 +0000 (10:55 +0200)]
ARM: configs: Update u8500_defconfig

The platform lost the framebuffer due to a commit solving a
circular dependency in v5.14-rc1, so add it back in by explicitly
selecting the framebuffer.

The U8500 has also gained a few systems using touchscreens from
Cypress, Melfas and Zinitix so add these at the same time as
we're updating the defconfig anyway.

Fixes: f611b1e7624c ("drm: Avoid circular dependencies for CONFIG_FB")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: phone-devel@vger.kernel.org
Cc: Kees Cook <keescook@chromium.org>
Cc: Arnd Bergmann <arnd@kernel.org>
Cc: Stephan Gerhold <stephan@gerhold.net>
Cc: newbyte@disroot.org
Link: https://lore.kernel.org/r/20210712085522.672482-1-linus.walleij@linaro.org'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2 years agoARM: configs: Update Vexpress defconfig
Linus Walleij [Tue, 13 Jul 2021 13:37:08 +0000 (15:37 +0200)]
ARM: configs: Update Vexpress defconfig

This updates the Versatile Express defconfig for the changes
in the v5.14-rc1 kernel:

- The Framebuffer CONFIG_FB needs to be explicitly selected
  or we don't get any framebuffer anymore. DRM has stopped to
  select FB because of circular dependency.
- CONFIG_CMA options were moved around.
- CONFIG_MODULES options were moved around.
- CONFIG_CRYPTO_HW was moved around.

Fixes: f611b1e7624c ("drm: Avoid circular dependencies for CONFIG_FB")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Link: https://lore.kernel.org/r/20210713133708.94397-1-linus.walleij@linaro.org'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2 years agoARM: configs: Update Versatile defconfig
Linus Walleij [Wed, 14 Jul 2021 08:18:19 +0000 (10:18 +0200)]
ARM: configs: Update Versatile defconfig

This updates the Versatile defconfig for the changes
in the v5.14-rc1 kernel:

- The Framebuffer CONFIG_FB needs to be explicitly selected
  or we don't get any framebuffer anymore. DRM has stopped to
  select FB because of circular dependency.
- The CONFIG_FB_MODE_HELPERS are not needed when using DRM
  framebuffer emulation as DRM does.
- The Acorn fonts are removed, the default framebuffer font
  works fine. I don't know why this was selected in the first
  place or how the Kconfig was altered so it was removed.

Fixes: f611b1e7624c ("drm: Avoid circular dependencies for CONFIG_FB")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Cc: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20210714081819.139210-1-linus.walleij@linaro.org'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2 years agoARM: configs: Update RealView defconfig
Linus Walleij [Wed, 14 Jul 2021 09:00:40 +0000 (11:00 +0200)]
ARM: configs: Update RealView defconfig

This updates the RealView defconfig for the changes
in the v5.14-rc1 kernel:

- The Framebuffer CONFIG_FB needs to be explicitly selected
  or we don't get any framebuffer anymore. DRM has stopped to
  select FB because of circular dependency.
- The CONFIG_FB_MODE_HELPERS are not needed when using DRM
  framebuffer emulation as DRM does.
- Drop two unused penguin logos.

Fixes: f611b1e7624c ("drm: Avoid circular dependencies for CONFIG_FB")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Cc: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20210714090040.182381-1-linus.walleij@linaro.org'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2 years agoARM: configs: Update Integrator defconfig
Linus Walleij [Wed, 14 Jul 2021 12:27:03 +0000 (14:27 +0200)]
ARM: configs: Update Integrator defconfig

This updates the Integrator defconfig for the changes
in the v5.14-rc1 kernel:

- The Framebuffer CONFIG_FB needs to be explicitly selected
  or we don't get any framebuffer anymore. DRM has stopped to
  select FB because of circular dependency.
- Drop the unused Matrox FB drivers that are only used with
  specific PCI cards.

Fixes: f611b1e7624c ("drm: Avoid circular dependencies for CONFIG_FB")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Cc: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20210714122703.212609-1-linus.walleij@linaro.org'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2 years agoMerge tag 'scmi-fixes-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep...
Arnd Bergmann [Fri, 16 Jul 2021 21:01:24 +0000 (23:01 +0200)]
Merge tag 'scmi-fixes-5.14' of git://git./linux/kernel/git/sudeep.holla/linux into arm/fixes

ARM SCMI fixes for v5.14

A small set of fixes:
- adding check for presence of probe while registering the driver to
  prevent NULL pointer access
- dropping the duplicate check as the driver core already takes care of it
- fix for possible scmi_linux_errmap buffer overflow
- fix to avoid sensor message structure padding
- fix the range check for the maximum number of pending SCMI messages
- fix for various kernel-doc warnings

* tag 'scmi-fixes-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
  firmware: arm_scmi: Fix range check for the maximum number of pending messages
  firmware: arm_scmi: Avoid padding in sensor message structure
  firmware: arm_scmi: Fix kernel doc warnings about return values
  firmware: arm_scpi: Fix kernel doc warnings
  firmware: arm_scmi: Fix kernel doc warnings
  firmware: arm_scmi: Fix possible scmi_linux_errmap buffer overflow
  firmware: arm_scmi: Ensure drivers provide a probe function
  firmware: arm_scmi: Simplify device probe function on the bus

Link: https://lore.kernel.org/r/20210714165831.2617437-1-sudeep.holla@arm.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2 years agoMerge tag 'arm-ffa-fixes-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/sudee...
Arnd Bergmann [Fri, 16 Jul 2021 21:00:44 +0000 (23:00 +0200)]
Merge tag 'arm-ffa-fixes-5.14' of git://git./linux/kernel/git/sudeep.holla/linux into arm/fixes

Arm FF-A fixes for v5.14

A small set of fixes:
- adding check for presence of probe while registering the driver to
  prevent NULL pointer access
- dropping the duplicate check as the driver core already takes care of it
- fixing possible ffa_linux_errmap buffer overflow and
- fixing kernel-doc warning for comment style

* tag 'arm-ffa-fixes-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
  firmware: arm_ffa: Fix a possible ffa_linux_errmap buffer overflow
  firmware: arm_ffa: Fix the comment style
  firmware: arm_ffa: Simplify probe function
  firmware: arm_ffa: Ensure drivers provide a probe function

Link: https://lore.kernel.org/r/20210714165806.2617325-1-sudeep.holla@arm.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2 years agoarm: Typo s/PCI_IXP4XX_LEGACY/IXP4XX_PCI_LEGACY/
Geert Uytterhoeven [Wed, 14 Jul 2021 09:33:43 +0000 (11:33 +0200)]
arm: Typo s/PCI_IXP4XX_LEGACY/IXP4XX_PCI_LEGACY/

Kconfig symbol PCI_IXP4XX_LEGACY does not exist, but IXP4XX_PCI_LEGACY
does.

Fixes: d5d9f7ac58ea1041 ("ARM/ixp4xx: Make NEED_MACH_IO_H optional")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/82ce37c617293521f095a945a255456b9512769c.1626255077.git.geert+renesas@glider.be'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2 years agoMerge tag 'tegra-for-5.14-arm64-dt-fixes' of git://git.kernel.org/pub/scm/linux/kerne...
Arnd Bergmann [Fri, 16 Jul 2021 20:57:07 +0000 (22:57 +0200)]
Merge tag 'tegra-for-5.14-arm64-dt-fixes' of git://git./linux/kernel/git/tegra/linux into arm/fixes

arm64: tegra: Device tree fixes for v5.14-rc1

This contains two late fixes for Tegra194 device tree files to restore
USB and audio functionality after enabling system-wide IOMMU support.

* tag 'tegra-for-5.14-arm64-dt-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  arm64: tegra: Enable SMMU support for USB on Tegra194
  arm64: tegra: Enable audio IOMMU support on Tegra194

Link: https://lore.kernel.org/r/20210709150220.2543875-1-thierry.reding@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2 years agoMerge tag 'renesas-fixes-for-v5.14-tag1' of git://git.kernel.org/pub/scm/linux/kernel...
Arnd Bergmann [Fri, 16 Jul 2021 20:54:55 +0000 (22:54 +0200)]
Merge tag 'renesas-fixes-for-v5.14-tag1' of git://git./linux/kernel/git/geert/renesas-devel into arm/fixes

Renesas fixes for v5.14

  - Fix a clock/reset handling design issue on the new RZ/G2L SoC,
    requiring an atomic change to DT binding definitions, clock driver,
    and DTS,
  - Restore graphical consoles in the shmobile_defconfig.

* tag 'renesas-fixes-for-v5.14-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
  ARM: shmobile: defconfig: Restore graphical consoles
  dt-bindings: clock: r9a07g044-cpg: Update clock/reset definitions
  clk: renesas: r9a07g044: Add P2 Clock support
  clk: renesas: r9a07g044: Fix P1 Clock
  clk: renesas: r9a07g044: Rename divider table
  clk: renesas: rzg2l: Add multi clock PM support

Link: https://lore.kernel.org/r/cover.1626253929.git.geert+renesas@glider.be
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2 years agoMerge tag 'memory-controller-drv-tegra-5.14-3' of git://git.kernel.org/pub/scm/linux...
Arnd Bergmann [Fri, 16 Jul 2021 20:50:56 +0000 (22:50 +0200)]
Merge tag 'memory-controller-drv-tegra-5.14-3' of git://git./linux/kernel/git/krzk/linux-mem-ctrl into arm/fixes

Memory controller drivers for v5.14 - Tegra SoC, late fixes

Two fixes for recent series of changes in Tegra SoC memory controller
drivers:
1. Add a stub for tegra_mc_probe_device() to fix compile testing of
   arm-smmu without TEGRA_MC.
2. Fix arm-smmu dtschema syntax.

* tag 'memory-controller-drv-tegra-5.14-3' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl:
  dt-bindings: arm-smmu: Fix json-schema syntax
  memory: tegra: Add compile-test stub for tegra_mc_probe_device()

Link: https://lore.kernel.org/r/20210625073604.13562-1-krzysztof.kozlowski@canonical.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2 years agoMerge tag 'docs-5.14-2' of git://git.lwn.net/linux
Linus Torvalds [Fri, 16 Jul 2021 20:35:04 +0000 (13:35 -0700)]
Merge tag 'docs-5.14-2' of git://git.lwn.net/linux

Pull documentation fixes from Jonathan Corbet:
 "A handful of fixes in and around documentation.

  Some funky quotes in LICENSES/dual/CC-BY-4.0 were giving spdxcheck.py
  grief; that has been fixed on both ends. Also a couple of features
  updates and one docs build fix"

* tag 'docs-5.14-2' of git://git.lwn.net/linux:
  docs/zh_CN: add a missing space character
  Documentation/features: Add THREAD_INFO_IN_TASK feature matrix
  Documentation/features: Update the ARCH_HAS_TICK_BROADCAST entry
  LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes"
  scripts/spdxcheck.py: Strictly read license files in utf-8

2 years agoMerge tag 'block-5.14-2021-07-16' of git://git.kernel.dk/linux-block
Linus Torvalds [Fri, 16 Jul 2021 19:31:44 +0000 (12:31 -0700)]
Merge tag 'block-5.14-2021-07-16' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:

 - NVMe fixes via Christoph:
      - fix various races in nvme-pci when shutting down just after
        probing (Casey Chen)
      - fix a net_device leak in nvme-tcp (Prabhakar Kushwaha)

 - Fix regression in xen-blkfront by cleaning up the removal state
   machine (Christoph)

 - Fix tag_set and queue cleanup ordering regression in nbd (Wang)

 - Fix tag_set and queue cleanup ordering regression in pd (Guoqing)

* tag 'block-5.14-2021-07-16' of git://git.kernel.dk/linux-block:
  xen-blkfront: sanitize the removal state machine
  nbd: fix order of cleaning up the queue and freeing the tagset
  pd: fix order of cleaning up the queue and freeing the tagset
  nvme-pci: do not call nvme_dev_remove_admin from nvme_remove
  nvme-pci: fix multiple races in nvme_setup_io_queues
  nvme-tcp: use __dev_get_by_name instead dev_get_by_name for OPT_HOST_IFACE

2 years agoMerge tag 'io_uring-5.14-2021-07-16' of git://git.kernel.dk/linux-block
Linus Torvalds [Fri, 16 Jul 2021 19:27:33 +0000 (12:27 -0700)]
Merge tag 'io_uring-5.14-2021-07-16' of git://git.kernel.dk/linux-block

Pull io_uring fixes from Jens Axboe:
 "Two small fixes: one fixing the process target of a check, and the
  other a minor issue with the drain error handling"

* tag 'io_uring-5.14-2021-07-16' of git://git.kernel.dk/linux-block:
  io_uring: fix io_drain_req()
  io_uring: use right task for exiting checks

2 years agoMerge tag 'zonefs-5.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal...
Linus Torvalds [Fri, 16 Jul 2021 18:20:53 +0000 (11:20 -0700)]
Merge tag 'zonefs-5.14-rc2' of git://git./linux/kernel/git/dlemoal/zonefs

Pull zonefs fix from Damien Le Moal:
 "A single patch to remove an unnecessary NULL bio check (from
  Xianting)"

* tag 'zonefs-5.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs:
  zonefs: remove redundant null bio check

2 years agoMerge tag 'drm-fixes-2021-07-16' of git://anongit.freedesktop.org/drm/drm
Linus Torvalds [Fri, 16 Jul 2021 18:14:54 +0000 (11:14 -0700)]
Merge tag 'drm-fixes-2021-07-16' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Regular rc2 fixes though a bit more than usual at rc2 stage, people
  must have been testing early or else some fixes from last week got a
  bit laggy.

  There is one larger change in the amd fixes to amalgamate some power
  management code on the newer chips with the code from the older chips,
  it should only affects chips where support was introduced in rc1 and
  it should make future fixes easier to maintain probably a good idea to
  merge it now.

  Otherwise it's mostly fixes across the board.

  dma-buf:
   - Fix fence leak in sync_file_merge() error code

  drm/panel:
   - nt35510: Don't fail on DSI reads

  fbdev:
   - Avoid use-after-free by not deleting current video mode

  ttm:
   - Avoid NULL-ptr deref in ttm_range_man_fini()

  vmwgfx:
   - Fix a merge commit

  qxl:
   - fix a TTM regression

  amdgpu:
   - SR-IOV fixes
   - RAS fixes
   - eDP fixes
   - SMU13 code unification to facilitate fixes in the future
   - Add new renoir DID
   - Yellow Carp fixes
   - Beige Goby fixes
   - Revert a bunch of TLB fixes that caused regressions
   - Revert an LTTPR display regression

  amdkfd
   - Fix VRAM access regression
   - SVM fixes

  i915:
   - Fix -EDEADLK handling regression
   - Drop the page table optimisation"

* tag 'drm-fixes-2021-07-16' of git://anongit.freedesktop.org/drm/drm: (29 commits)
  drm/amdgpu: add another Renoir DID
  drm/ttm: add a check against null pointer dereference
  drm/i915/gtt: drop the page table optimisation
  drm/i915/gt: Fix -EDEADLK handling regression
  drm/amd/pm: Add waiting for response of mode-reset message for yellow carp
  Revert "drm/amdkfd: Add heavy-weight TLB flush after unmapping"
  Revert "drm/amdgpu: Add table_freed parameter to amdgpu_vm_bo_update"
  Revert "drm/amdkfd: Make TLB flush conditional on mapping"
  Revert "drm/amdgpu: Fix warning of Function parameter or member not described"
  Revert "drm/amdkfd: Add memory sync before TLB flush on unmap"
  drm/amd/pm: Fix BACO state setting for Beige_Goby
  drm/amdgpu: Restore msix after FLR
  drm/amdkfd: Allow CPU access for all VRAM BOs
  drm/amdgpu/display - only update eDP's backlight level when necessary
  drm/amdkfd: handle fault counters on invalid address
  drm/amdgpu: Correct the irq numbers for virtual crtc
  drm/amd/display: update header file name
  drm/amd/pm: drop smu_v13_0_1.c|h files for yellow carp
  drm/amd/display: remove faulty assert
  Revert "drm/amd/display: Always write repeater mode regardless of LTTPR"
  ...

2 years agoMerge branch 'urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
Linus Torvalds [Fri, 16 Jul 2021 18:08:57 +0000 (11:08 -0700)]
Merge branch 'urgent' of git://git./linux/kernel/git/paulmck/linux-rcu

Pull RCU fixes from Paul McKenney:

 - fix regressions induced by a merge-window change in scheduler
   semantics, which means that smp_processor_id() can no longer be used
   in kthreads using simple affinity to bind themselves to a specific
   CPU.

 - fix a bug in Tasks Trace RCU that was thought to be strictly
   theoretical. However, production workloads have started hitting this,
   so these fixes need to be merged sooner rather than later.

 - fix a minor printk()-format-mismatch issue introduced during the
   merge window.

* 'urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
  rcu: Fix pr_info() formats and values in show_rcu_gp_kthreads()
  rcu-tasks: Don't delete holdouts within trc_wait_for_one_reader()
  rcu-tasks: Don't delete holdouts within trc_inspect_reader()
  refscale: Avoid false-positive warnings in ref_scale_reader()
  scftorture: Avoid false-positive warnings in scftorture_invoker()

2 years agodt-bindings: display: renesas,du: Make resets optional on R-Car H1
Geert Uytterhoeven [Wed, 14 Jul 2021 10:19:36 +0000 (12:19 +0200)]
dt-bindings: display: renesas,du: Make resets optional on R-Car H1

The "resets" property is not present on R-Car Gen1 SoCs.
Supporting it would require migrating from renesas,cpg-clocks to
renesas,cpg-mssr.

Reflect this in the DT bindings by removing the global "required:
resets".  All SoCs that do have "resets" properties already have
SoC-specific rules making it required.

Fixes: 99d66127fad25ebb ("dt-bindings: display: renesas,du: Convert binding to YAML")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://lore.kernel.org/r/98575791b154d80347d5b78132c1d53f5315ee62.1626257936.git.geert+renesas@glider.be
Signed-off-by: Rob Herring <robh@kernel.org>
2 years agoperf test bpf: Free obj_buf
Riccardo Mancini [Thu, 15 Jul 2021 16:07:24 +0000 (18:07 +0200)]
perf test bpf: Free obj_buf

ASan reports some memory leaks when running:

  # perf test "42: BPF filter"

The first of these leaks is caused by obj_buf never being deallocated in
__test__bpf.

This patch adds the missing free.

Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Fixes: ba1fae431e74bb42 ("perf test: Add 'perf test BPF'")
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lore.kernel.org/lkml/60f3ca935fe6672e7e866276ce6264c9e26e4c87.1626343282.git.rickyman7@gmail.com
[ Added missing stdlib.h include ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agocifs: do not share tcp sessions of dfs connections
Paulo Alcantara [Fri, 16 Jul 2021 00:53:53 +0000 (21:53 -0300)]
cifs: do not share tcp sessions of dfs connections

Make sure that we do not share tcp sessions of dfs mounts when
mounting regular shares that connect to same server.  DFS connections
rely on a single instance of tcp in order to do failover properly in
cifs_reconnect().

Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>
2 years agozonefs: remove redundant null bio check
Xianting Tian [Wed, 30 Jun 2021 14:33:36 +0000 (10:33 -0400)]
zonefs: remove redundant null bio check

bio_alloc() with __GFP_DIRECT_RECLAIM, which is included in
GFP_NOFS, never fails, see comments in bio_alloc_bioset().

Signed-off-by: Xianting Tian <xianting.tian@linux.alibaba.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
2 years agoRevert "Makefile: Enable -Wimplicit-fallthrough for Clang"
Linus Torvalds [Fri, 16 Jul 2021 01:05:31 +0000 (18:05 -0700)]
Revert "Makefile: Enable -Wimplicit-fallthrough for Clang"

This reverts commit b7eb335e26a9c7f258c96b3962c283c379d3ede0.

It turns out that the problem with the clang -Wimplicit-fallthrough
warning is not about the kernel source code, but about clang itself, and
that the warning is unusable until clang fixes its broken ways.

In particular, when you enable this warning for clang, you not only get
warnings about implicit fallthroughs.  You also get this:

   warning: fallthrough annotation in unreachable code [-Wimplicit-fallthrough]

which is completely broken becasue it

 (a) doesn't even tell you where the problem is (seriously: no line
     numbers, no filename, no nothing).

 (b) is fundamentally broken anyway, because there are perfectly valid
     reasons to have a fallthrough statement even if it turns out that
     it can perhaps not be reached.

In the kernel, an example of that second case is code in the scheduler:

                switch (state) {
                case cpuset:
                        if (IS_ENABLED(CONFIG_CPUSETS)) {
                                cpuset_cpus_allowed_fallback(p);
                                state = possible;
                                break;
                        }
                        fallthrough;
                case possible:

where if CONFIG_CPUSETS is enabled you actually never hit the
fallthrough case at all.  But that in no way makes the fallthrough
wrong.

So the warning is completely broken, and enabling it for clang is a very
bad idea.

In the meantime, we can keep the gcc option enabled, and make the gcc
build use

    -Wimplicit-fallthrough=5

which means that we will at least continue to require a proper
fallthrough statement, and that gcc won't silently accept the magic
comment versions. Because gcc does this all correctly, and while the odd
"=5" part is kind of obscure, it's documented in [1]:

  "-Wimplicit-fallthrough=5 doesn’t recognize any comments as
   fallthrough comments, only attributes disable the warning"

so if clang ever fixes its bad behavior we can try enabling it there again.

Link: https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html
Cc: Kees Cook <keescook@chromium.org>
Cc: Gustavo A. R. Silva <gustavoars@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agoMerge tag 'drm-intel-fixes-2021-07-15' of git://anongit.freedesktop.org/drm/drm-intel...
Dave Airlie [Fri, 16 Jul 2021 00:52:58 +0000 (10:52 +1000)]
Merge tag 'drm-intel-fixes-2021-07-15' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

Two regression fixes targeting stable:
- Fix -EDEADLK handling regression (Ville)
- Drop the page table optimisation (Matt)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/YPA8y1DSCp2EbtpC@intel.com
2 years agoMerge tag 'configfs-5.13-1' of git://git.infradead.org/users/hch/configfs
Linus Torvalds [Fri, 16 Jul 2021 00:36:36 +0000 (17:36 -0700)]
Merge tag 'configfs-5.13-1' of git://git.infradead.org/users/hch/configfs

Pull configfs fix from Christoph Hellwig:

 - fix the read and write iterators (Bart Van Assche)

* tag 'configfs-5.13-1' of git://git.infradead.org/users/hch/configfs:
  configfs: fix the read and write iterators

2 years agoMerge tag 'drm-misc-fixes-2021-07-15' of git://anongit.freedesktop.org/drm/drm-misc...
Dave Airlie [Thu, 15 Jul 2021 23:51:41 +0000 (09:51 +1000)]
Merge tag 'drm-misc-fixes-2021-07-15' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

Short summary of fixes pull (less than what git shortlog provides):

 * fbdev: Avoid use-after-free by not deleting current video mode
 * ttm: Avoid NULL-ptr deref in ttm_range_man_fini()
 * vmwgfx: Fix a merge commit

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/YO/yoFO+iSEqnIH0@linux-uq9g
2 years agoMerge tag 'pwm/for-5.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry...
Linus Torvalds [Fri, 16 Jul 2021 00:29:44 +0000 (17:29 -0700)]
Merge tag 'pwm/for-5.14-rc2' of git://git./linux/kernel/git/thierry.reding/linux-pwm

Pull pwm fixes from Thierry Reding:
 "A couple of fixes from Uwe that I missed for v5.14-rc1"

* tag 'pwm/for-5.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
  pwm: ep93xx: Ensure configuring period and duty_cycle isn't wrongly skipped
  pwm: berlin: Ensure configuring period and duty_cycle isn't wrongly skipped
  pwm: tiecap: Ensure configuring period and duty_cycle isn't wrongly skipped
  pwm: spear: Ensure configuring period and duty_cycle isn't wrongly skipped
  pwm: sprd: Ensure configuring period and duty_cycle isn't wrongly skipped

2 years agoSMB3.1.1: fix mount failure to some servers when compression enabled
Steve French [Thu, 15 Jul 2021 04:32:09 +0000 (23:32 -0500)]
SMB3.1.1: fix mount failure to some servers when compression enabled

When sending the compression context to some servers, they rejected
the SMB3.1.1 negotiate protocol because they expect the compression
context to have a data length of a multiple of 8.

Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2 years agocifs: added WARN_ON for all the count decrements
Shyam Prasad N [Thu, 15 Jul 2021 04:00:00 +0000 (23:00 -0500)]
cifs: added WARN_ON for all the count decrements

We have a few ref counters srv_count, ses_count and
tc_count which we use for ref counting. Added a WARN_ON
during the decrement of each of these counters to make
sure that they don't go below their minimum values.

Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2 years agocifs: fix missing null session check in mount
Steve French [Wed, 14 Jul 2021 00:40:33 +0000 (19:40 -0500)]
cifs: fix missing null session check in mount

Although it is unlikely to be have ended up with a null
session pointer calling cifs_try_adding_channels in cifs_mount.
Coverity correctly notes that we are already checking for
it earlier (when we return from do_dfs_failover), so at
a minimum to clarify the code we should make sure we also
check for it when we exit the loop so we don't end up calling
cifs_try_adding_channels or mount_setup_tlink with a null
ses pointer.

Addresses-Coverity: 1505608 ("Derefernce after null check")
Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>
2 years agocifs: handle reconnect of tcon when there is no cached dfs referral
Paulo Alcantara [Mon, 12 Jul 2021 15:38:24 +0000 (12:38 -0300)]
cifs: handle reconnect of tcon when there is no cached dfs referral

When there is no cached DFS referral of tcon->dfs_path, then reconnect
to same share.

Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2 years agoMerge tag 'amd-drm-fixes-5.14-2021-07-14' of https://gitlab.freedesktop.org/agd5f...
Dave Airlie [Thu, 15 Jul 2021 23:27:45 +0000 (09:27 +1000)]
Merge tag 'amd-drm-fixes-5.14-2021-07-14' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes

amd-drm-fixes-5.14-2021-07-14:

amdgpu:
- SR-IOV fixes
- RAS fixes
- eDP fixes
- SMU13 code unification to facilitate fixes in the future
- Add new renoir DID
- Yellow Carp fixes
- Beige Goby fixes
- Revert a bunch of TLB fixes that caused regressions
- Revert an LTTPR display regression

amdkfd
- Fix VRAM access regression
- SVM fixes

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210714220858.5553-1-alexander.deucher@amd.com
2 years agotracing: Do not reference char * as a string in histograms
Steven Rostedt (VMware) [Thu, 15 Jul 2021 04:02:06 +0000 (00:02 -0400)]
tracing: Do not reference char * as a string in histograms

The histogram logic was allowing events with char * pointers to be used as
normal strings. But it was easy to crash the kernel with:

 # echo 'hist:keys=filename' > events/syscalls/sys_enter_openat/trigger

And open some files, and boom!

 BUG: unable to handle page fault for address: 00007f2ced0c3280
 #PF: supervisor read access in kernel mode
 #PF: error_code(0x0000) - not-present page
 PGD 1173fa067 P4D 1173fa067 PUD 1171b6067 PMD 1171dd067 PTE 0
 Oops: 0000 [#1] PREEMPT SMP
 CPU: 6 PID: 1810 Comm: cat Not tainted 5.13.0-rc5-test+ #61
 Hardware name: Hewlett-Packard HP Compaq Pro 6300 SFF/339A, BIOS K01
v03.03 07/14/2016
 RIP: 0010:strlen+0x0/0x20
 Code: f6 82 80 2a 0b a9 20 74 11 0f b6 50 01 48 83 c0 01 f6 82 80 2a 0b
a9 20 75 ef c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 <80> 3f 00 74
10 48 89 f8 48 83 c0 01 80 38 00 75 f7 48 29 f8 c3

 RSP: 0018:ffffbdbf81567b50 EFLAGS: 00010246
 RAX: 0000000000000003 RBX: ffff93815cdb3800 RCX: ffff9382401a22d0
 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 00007f2ced0c3280
 RBP: 0000000000000100 R08: ffff9382409ff074 R09: ffffbdbf81567c98
 R10: ffff9382409ff074 R11: 0000000000000000 R12: ffff9382409ff074
 R13: 0000000000000001 R14: ffff93815a744f00 R15: 00007f2ced0c3280
 FS:  00007f2ced0f8580(0000) GS:ffff93825a800000(0000)
knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f2ced0c3280 CR3: 0000000107069005 CR4: 00000000001706e0
 Call Trace:
  event_hist_trigger+0x463/0x5f0
  ? find_held_lock+0x32/0x90
  ? sched_clock_cpu+0xe/0xd0
  ? lock_release+0x155/0x440
  ? kernel_init_free_pages+0x6d/0x90
  ? preempt_count_sub+0x9b/0xd0
  ? kernel_init_free_pages+0x6d/0x90
  ? get_page_from_freelist+0x12c4/0x1680
  ? __rb_reserve_next+0xe5/0x460
  ? ring_buffer_lock_reserve+0x12a/0x3f0
  event_triggers_call+0x52/0xe0
  ftrace_syscall_enter+0x264/0x2c0
  syscall_trace_enter.constprop.0+0x1ee/0x210
  do_syscall_64+0x1c/0x80
  entry_SYSCALL_64_after_hwframe+0x44/0xae

Where it triggered a fault on strlen(key) where key was the filename.

The reason is that filename is a char * to user space, and the histogram
code just blindly dereferenced it, with obvious bad results.

I originally tried to use strncpy_from_user/kernel_nofault() but found
that there's other places that its dereferenced and not worth the effort.

Just do not allow "char *" to act like strings.

Link: https://lkml.kernel.org/r/20210715000206.025df9d2@rorschach.local.home
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Tzvetomir Stoyanov <tz.stoyanov@gmail.com>
Cc: stable@vger.kernel.org
Acked-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Tom Zanussi <zanussi@kernel.org>
Fixes: 79e577cbce4c4 ("tracing: Support string type key properly")
Fixes: 5967bd5c4239 ("tracing: Let filter_assign_type() detect FILTER_PTR_STRING")
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2 years agoMerge tag 'Wimplicit-fallthrough-clang-5.14-rc2' of git://git.kernel.org/pub/scm...
Linus Torvalds [Thu, 15 Jul 2021 20:57:31 +0000 (13:57 -0700)]
Merge tag 'Wimplicit-fallthrough-clang-5.14-rc2' of git://git./linux/kernel/git/gustavoars/linux

Pull fallthrough fixes from Gustavo Silva:
 "This fixes many fall-through warnings when building with Clang and
  -Wimplicit-fallthrough, and also enables -Wimplicit-fallthrough for
  Clang, globally.

  It's also important to notice that since we have adopted the use of
  the pseudo-keyword macro fallthrough, we also want to avoid having
  more /* fall through */ comments being introduced. Contrary to GCC,
  Clang doesn't recognize any comments as implicit fall-through markings
  when the -Wimplicit-fallthrough option is enabled.

  So, in order to avoid having more comments being introduced, we use
  the option -Wimplicit-fallthrough=5 for GCC, which similar to Clang,
  will cause a warning in case a code comment is intended to be used as
  a fall-through marking. The patch for Makefile also enforces this.

  We had almost 4,000 of these issues for Clang in the beginning, and
  there might be a couple more out there when building some
  architectures with certain configurations. However, with the recent
  fixes I think we are in good shape and it is now possible to enable
  the warning for Clang"

* tag 'Wimplicit-fallthrough-clang-5.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux: (27 commits)
  Makefile: Enable -Wimplicit-fallthrough for Clang
  powerpc/smp: Fix fall-through warning for Clang
  dmaengine: mpc512x: Fix fall-through warning for Clang
  usb: gadget: fsl_qe_udc: Fix fall-through warning for Clang
  powerpc/powernv: Fix fall-through warning for Clang
  MIPS: Fix unreachable code issue
  MIPS: Fix fall-through warnings for Clang
  ASoC: Mediatek: MT8183: Fix fall-through warning for Clang
  power: supply: Fix fall-through warnings for Clang
  dmaengine: ti: k3-udma: Fix fall-through warning for Clang
  s390: Fix fall-through warnings for Clang
  dmaengine: ipu: Fix fall-through warning for Clang
  iommu/arm-smmu-v3: Fix fall-through warning for Clang
  mmc: jz4740: Fix fall-through warning for Clang
  PCI: Fix fall-through warning for Clang
  scsi: libsas: Fix fall-through warning for Clang
  video: fbdev: Fix fall-through warning for Clang
  math-emu: Fix fall-through warning
  cpufreq: Fix fall-through warning for Clang
  drm/msm: Fix fall-through warning in msm_gem_new_impl()
  ...

2 years agoperf trace: Free strings in trace__parse_events_option()
Riccardo Mancini [Thu, 15 Jul 2021 16:07:23 +0000 (18:07 +0200)]
perf trace: Free strings in trace__parse_events_option()

ASan reports several memory leaks running:

  # perf test "88: Check open filename arg using perf trace + vfs_getname"

The fourth of these leaks is related to some strings never being freed
in trace__parse_events_option.

This patch adds the missing frees.

Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/34d08535b11124106b859790549991abff5a7de8.1626343282.git.rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf trace: Free syscall tp fields in evsel->priv
Riccardo Mancini [Thu, 15 Jul 2021 16:07:22 +0000 (18:07 +0200)]
perf trace: Free syscall tp fields in evsel->priv

ASan reports several memory leaks running:

  # perf test "88: Check open filename arg using perf trace + vfs_getname"

The third of these leaks is related to evsel->priv fields of sycalls
never being deallocated.

This patch adds the function evlist__free_syscall_tp_fields which
iterates over all evsels in evlist, matching syscalls, and calling the
missing frees.

This new function is called at the end of trace__run, right before
calling evlist__delete.

Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/46526611904ec5ff2768b59014e3afce8e0197d1.1626343282.git.rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf trace: Free syscall->arg_fmt
Riccardo Mancini [Thu, 15 Jul 2021 16:07:21 +0000 (18:07 +0200)]
perf trace: Free syscall->arg_fmt

ASan reports several memory leaks running:

  # perf test "88: Check open filename arg using perf trace + vfs_getname"

The second of these leaks is caused by the arg_fmt field of syscall not
being deallocated.

This patch adds a new function syscall__exit which is called on all
syscalls.table entries in trace__exit, which will free the arg_fmt
field.

Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/d68f25c043d30464ac9fa79c3399e18f429bca82.1626343282.git.rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf trace: Free malloc'd trace fields on exit
Riccardo Mancini [Thu, 15 Jul 2021 16:07:20 +0000 (18:07 +0200)]
perf trace: Free malloc'd trace fields on exit

ASan reports several memory leaks running:

  # perf test "88: Check open filename arg using perf trace + vfs_getname"

The first of these leaks is related to struct trace fields never being
deallocated.

This patch adds the function trace__exit, which is called at the end of
cmd_trace, replacing the existing deallocation, which is now moved
inside the new function.

This function deallocates:

 - ev_qualifier
 - ev_qualifier_ids.entries
 - syscalls.table
 - sctbl
 - perfconfig_events

Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/de5945ed5c0cb882cbfa3268567d0bff460ff016.1626343282.git.rickyman7@gmail.com
[ Removed needless initialization to zero, missing named initializers are zeroed by the compiler ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf lzma: Close lzma stream on exit
Riccardo Mancini [Thu, 15 Jul 2021 16:07:19 +0000 (18:07 +0200)]
perf lzma: Close lzma stream on exit

ASan reports memory leaks when running:

  # perf test "88: Check open filename arg using perf trace + vfs_getname"

One of these is caused by the lzma stream never being closed inside
lzma_decompress_to_file().

This patch adds the missing lzma_end().

Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Fixes: 80a32e5b498a7547 ("perf tools: Add lzma decompression support for kernel module")
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/aaf50bdce7afe996cfc06e1bbb36e4a2a9b9db93.1626343282.git.rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf script: Fix memory 'threads' and 'cpus' leaks on exit
Riccardo Mancini [Thu, 15 Jul 2021 16:07:18 +0000 (18:07 +0200)]
perf script: Fix memory 'threads' and 'cpus' leaks on exit

ASan reports several memory leaks while running:

  # perf test "82: Use vfs_getname probe to get syscall args filenames"

Two of these are caused by some refcounts not being decreased on
perf-script exit, namely script.threads and script.cpus.

This patch adds the missing __put calls in a new perf_script__exit
function, which is called at the end of cmd_script.

This patch concludes the fixes of all remaining memory leaks in perf
test "82: Use vfs_getname probe to get syscall args filenames".

Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Fixes: cfc8874a48599249 ("perf script: Process cpu/threads maps")
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/5ee73b19791c6fa9d24c4d57f4ac1a23609400d7.1626343282.git.rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf script: Release zstd data
Riccardo Mancini [Thu, 15 Jul 2021 16:07:17 +0000 (18:07 +0200)]
perf script: Release zstd data

ASan reports several memory leak while running:

  # perf test "82: Use vfs_getname probe to get syscall args filenames"

One of the leaks is caused by zstd data not being released on exit in
perf-script.

This patch adds the missing zstd_fini().

Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Fixes: b13b04d9382113f7 ("perf script: Initialize zstd_data")
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/39388e8cc2f85ca219ea18697a17b7bd8f74b693.1626343282.git.rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf session: Cleanup trace_event
Riccardo Mancini [Thu, 15 Jul 2021 16:07:16 +0000 (18:07 +0200)]
perf session: Cleanup trace_event

ASan reports several memory leaks when running:

  # perf test "82: Use vfs_getname probe to get syscall args filenames"

many of which are related to session->tevent.

This patch will solve this problem, then next patch will fix the
remaining memory leaks in 'perf script'.

This bug is due to a missing deallocation of the trace_event data
strutures.

This patch adds the missing trace_event__cleanup() in
perf_session__delete().

Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/fa2a3f221d90e47ce4e5b7e2d6e64c3509ddc96a.1626343282.git.rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf inject: Close inject.output on exit
Riccardo Mancini [Thu, 15 Jul 2021 16:07:15 +0000 (18:07 +0200)]
perf inject: Close inject.output on exit

ASan reports a memory leak when running:

  # perf test "83: Zstd perf.data compression/decompression"

which happens inside 'perf inject'.

The bug is caused by inject.output never being closed.

This patch adds the missing perf_data__close().

Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Fixes: 6ef81c55a2b6584c ("perf session: Return error code for perf_session__new() function on failure")
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mamatha Inamdar <mamatha4@linux.vnet.ibm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/c06f682afa964687367cf6e92a64ceb49aec76a5.1626343282.git.rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf report: Free generated help strings for sort option
Riccardo Mancini [Thu, 15 Jul 2021 16:07:14 +0000 (18:07 +0200)]
perf report: Free generated help strings for sort option

ASan reports the memory leak of the strings allocated by sort_help() when
running perf report.

This patch changes the returned pointer to char* (instead of const
char*), saves it in a temporary variable, and finally deallocates it at
function exit.

Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Fixes: 702fb9b415e7c99b ("perf report: Show all sort keys in help output")
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/a38b13f02812a8a6759200b9063c6191337f44d4.1626343282.git.rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf env: Fix memory leak of cpu_pmu_caps
Riccardo Mancini [Thu, 15 Jul 2021 16:07:13 +0000 (18:07 +0200)]
perf env: Fix memory leak of cpu_pmu_caps

ASan reports memory leaks while running:

 # perf test "83: Zstd perf.data compression/decompression"

The first of the leaks is caused by env->cpu_pmu_caps not being freed.

This patch adds the missing (z)free inside perf_env__exit.

Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Fixes: 6f91ea283a1ed23e ("perf header: Support CPU PMU capabilities")
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/6ba036a8220156ec1f3d6be3e5d25920f6145028.1626343282.git.rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf test maps__merge_in: Fix memory leak of maps
Riccardo Mancini [Thu, 15 Jul 2021 16:07:12 +0000 (18:07 +0200)]
perf test maps__merge_in: Fix memory leak of maps

ASan reports a memory leak when running:

  # perf test "65: maps__merge_in"

This is the second and final patch addressing these memory leaks.

This time, the problem is simply that the maps object is never
destructed.

This patch adds the missing maps__exit call.

Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Fixes: 79b6bb73f888933c ("perf maps: Merge 'struct maps' with 'struct map_groups'")
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/a1a29b97a58738987d150e94d4ebfad0282fb038.1626343282.git.rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf dso: Fix memory leak in dso__new_map()
Riccardo Mancini [Thu, 15 Jul 2021 16:07:11 +0000 (18:07 +0200)]
perf dso: Fix memory leak in dso__new_map()

ASan reports a memory leak when running:

  # perf test "65: maps__merge_in".

The causes of the leaks are two, this patch addresses only the first
one, which is related to dso__new_map().

The bug is that dso__new_map() creates a new dso but never decreases the
refcount it gets from creating it.

This patch adds the missing dso__put().

Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Fixes: d3a7c489c7fd2463 ("perf tools: Reference count struct dso")
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/60bfe0cd06e89e2ca33646eb8468d7f5de2ee597.1626343282.git.rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf test event_update: Fix memory leak of unit
Riccardo Mancini [Thu, 15 Jul 2021 16:07:10 +0000 (18:07 +0200)]
perf test event_update: Fix memory leak of unit

ASan reports a memory leak while running:

  # perf test "49: Synthesize attr update"

Caused by a string being duplicated but never freed.

This patch adds the missing free().

Note that evsel->unit is not deallocated together with evsel since it is
supposed to be a constant string.

Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Fixes: a6e5281780d1da65 ("perf tools: Add event_update event unit type")
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/1fbc8158663fb0d4d5392e36bae564f6ad60be3c.1626343282.git.rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf test event_update: Fix memory leak of evlist
Riccardo Mancini [Thu, 15 Jul 2021 16:07:09 +0000 (18:07 +0200)]
perf test event_update: Fix memory leak of evlist

ASan reports a memory leak when running:

  # perf test "49: Synthesize attr update"

Caused by evlist not being deleted.

This patch adds the missing evlist__delete and removes the
perf_cpu_map__put since it's already being deleted by evlist__delete.

Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Fixes: a6e5281780d1da65 ("perf tools: Add event_update event unit type")
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/f7994ad63d248f7645f901132d208fadf9f2b7e4.1626343282.git.rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf test session_topology: Delete session->evlist
Riccardo Mancini [Thu, 15 Jul 2021 16:07:08 +0000 (18:07 +0200)]
perf test session_topology: Delete session->evlist

ASan reports a memory leak related to session->evlist while running:

  # perf test "41: Session topology".

When perf_data is in write mode, session->evlist is owned by the caller,
which should also take care of deleting it.

This patch adds the missing evlist__delete().

Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Fixes: c84974ed9fb67293 ("perf test: Add entry to test cpu topology")
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/822f741f06eb25250fb60686cf30a35f447e9e91.1626343282.git.rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf env: Fix sibling_dies memory leak
Riccardo Mancini [Thu, 15 Jul 2021 16:07:07 +0000 (18:07 +0200)]
perf env: Fix sibling_dies memory leak

ASan reports a memory leak in perf_env while running:

  # perf test "41: Session topology"

Caused by sibling_dies not being freed.

This patch adds the required free.

Fixes: acae8b36cded0ee6 ("perf header: Add die information in CPU topology")
Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/2140d0b57656e4eb9021ca9772250c24c032924b.1626343282.git.rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf probe: Fix dso->nsinfo refcounting
Riccardo Mancini [Thu, 15 Jul 2021 16:07:06 +0000 (18:07 +0200)]
perf probe: Fix dso->nsinfo refcounting

ASan reports a memory leak of nsinfo during the execution of:

 # perf test "31: Lookup mmap thread".

The leak is caused by a refcounted variable being replaced without
dropping the refcount.

This patch makes sure that the refcnt of nsinfo is decreased whenever
a refcounted variable is replaced with a new value.

Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Fixes: 544abd44c7064c8a ("perf probe: Allow placing uprobes in alternate namespaces.")
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Krister Johansen <kjlx@templeofstupid.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/55223bc8821b34ccb01f92ef1401c02b6a32e61f.1626343282.git.rickyman7@gmail.com
[ Split from a larger patch ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf map: Fix dso->nsinfo refcounting
Riccardo Mancini [Thu, 15 Jul 2021 16:07:06 +0000 (18:07 +0200)]
perf map: Fix dso->nsinfo refcounting

ASan reports a memory leak of nsinfo during the execution of

  # perf test "31: Lookup mmap thread"

The leak is caused by a refcounted variable being replaced without
dropping the refcount.

This patch makes sure that the refcnt of nsinfo is decreased whenever a
refcounted variable is replaced with a new value.

Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Fixes: bf2e710b3cb8445c ("perf maps: Lookup maps in both intitial mountns and inner mountns.")
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Krister Johansen <kjlx@templeofstupid.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/55223bc8821b34ccb01f92ef1401c02b6a32e61f.1626343282.git.rickyman7@gmail.com
[ Split from a larger patch ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf inject: Fix dso->nsinfo refcounting
Riccardo Mancini [Thu, 15 Jul 2021 16:07:06 +0000 (18:07 +0200)]
perf inject: Fix dso->nsinfo refcounting

ASan reports a memory leak of nsinfo during the execution of:

  # perf test "31: Lookup mmap thread"

The leak is caused by a refcounted variable being replaced without
dropping the refcount.

This patch makes sure that the refcnt of nsinfo is decreased when a
refcounted variable is replaced with a new value.

Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Fixes: 27c9c3424fc217da ("perf inject: Add --buildid-all option")
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/55223bc8821b34ccb01f92ef1401c02b6a32e61f.1626343282.git.rickyman7@gmail.com
[ Split from a larger patch ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoMerge branch 'akpm' (patches from Andrew)
Linus Torvalds [Thu, 15 Jul 2021 19:17:05 +0000 (12:17 -0700)]
Merge branch 'akpm' (patches from Andrew)

Merge misc fixes from Andrew Morton:
 "13 patches.

  Subsystems affected by this patch series: mm (kasan, pagealloc, rmap,
  hmm, and hugetlb), and hfs"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  mm/hugetlb: fix refs calculation from unaligned @vaddr
  hfs: add lock nesting notation to hfs_find_init
  hfs: fix high memory mapping in hfs_bnode_read
  hfs: add missing clean-up in hfs_fill_super
  lib/test_hmm: remove set but unused page variable
  mm: fix the try_to_unmap prototype for !CONFIG_MMU
  mm/page_alloc: further fix __alloc_pages_bulk() return value
  mm/page_alloc: correct return value when failing at preparing
  mm/page_alloc: avoid page allocator recursion with pagesets.lock held
  Revert "mm/page_alloc: make should_fail_alloc_page() static"
  kasan: fix build by including kernel.h
  kasan: add memzero init for unaligned size at DEBUG
  mm: move helper to check slub_debug_enabled

2 years agoEDAC/igen6: fix core dependency AGAIN
Randy Dunlap [Thu, 15 Jul 2021 18:55:31 +0000 (11:55 -0700)]
EDAC/igen6: fix core dependency AGAIN

My previous patch had a typo/thinko which prevents this driver
from being enabled: change X64_64 to X86_64.

Fixes: 0a9ece9ba154 ("EDAC/igen6: fix core dependency")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: linux-edac@vger.kernel.org
Cc: bowsingbetee <bowsingbetee@protonmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>