From: kernel test robot <lkp@intel.com>
To: oe-kbuild@lists.linux.dev
Cc: lkp@intel.com
Subject: [kdave-btrfs-devel:misc-next 54/97] fs/btrfs/lzo.c:413:3: warning: Value stored to 'ret' is never read [clang-analyzer-deadcode.DeadStores]
Date: Wed, 29 Mar 2023 03:39:02 +0800 [thread overview]
Message-ID: <202303290324.qNjBaZMR-lkp@intel.com> (raw)
::::::
:::::: Manual check reason: "low confidence static check warning: fs/btrfs/lzo.c:413:3: warning: Value stored to 'ret' is never read [clang-analyzer-deadcode.DeadStores]"
::::::
BCC: lkp@intel.com
CC: llvm@lists.linux.dev
CC: oe-kbuild-all@lists.linux.dev
TO: Christoph Hellwig <hch@lst.de>
CC: David Sterba <dsterba@suse.com>
CC: Anand Jain <anand.jain@oracle.com>
CC: Johannes Thumshirn <johannes.thumshirn@wdc.com>
CC: Qu Wenruo <wqu@suse.com>
tree: https://github.com/kdave/btrfs-devel.git misc-next
head: 3523b1568d7b3866333638bd02bd72d984a5c6d9
commit: 0a793f2ddff44513947dc68779095877b6db2b61 [54/97] btrfs: move zero filling of compressed read bios into common code
:::::: branch date: 27 hours ago
:::::: commit date: 8 days ago
config: riscv-randconfig-c006-20230326 (https://download.01.org/0day-ci/archive/20230329/202303290324.qNjBaZMR-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 67409911353323ca5edf2049ef0df54132fa1ca7)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install riscv cross compiling tool for clang build
# apt-get install binutils-riscv64-linux-gnu
# https://github.com/kdave/btrfs-devel/commit/0a793f2ddff44513947dc68779095877b6db2b61
git remote add kdave-btrfs-devel https://github.com/kdave/btrfs-devel.git
git fetch --no-tags kdave-btrfs-devel misc-next
git checkout 0a793f2ddff44513947dc68779095877b6db2b61
# save the config file
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv clang-analyzer olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv clang-analyzer
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/r/202303290324.qNjBaZMR-lkp@intel.com/
clang_analyzer warnings: (new ones prefixed by >>)
^ ~~~~~~~~~~~~~
Suppressed 3 warnings (3 in non-user code).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
2 warnings generated.
Suppressed 2 warnings (2 in non-user code).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
3 warnings generated.
Suppressed 3 warnings (3 in non-user code).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
3 warnings generated.
Suppressed 3 warnings (3 in non-user code).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
3 warnings generated.
Suppressed 3 warnings (3 in non-user code).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
2 warnings generated.
Suppressed 2 warnings (2 in non-user code).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
2 warnings generated.
Suppressed 2 warnings (2 in non-user code).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
2 warnings generated.
Suppressed 2 warnings (2 in non-user code).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
4 warnings generated.
crypto/pcbc.c:74:10: warning: Although the value stored to 'nbytes' is used in the enclosing expression, the value is never actually read from 'nbytes' [clang-analyzer-deadcode.DeadStores]
while ((nbytes = walk.nbytes)) {
^ ~~~~~~~~~~~
crypto/pcbc.c:74:10: note: Although the value stored to 'nbytes' is used in the enclosing expression, the value is never actually read from 'nbytes'
while ((nbytes = walk.nbytes)) {
^ ~~~~~~~~~~~
crypto/pcbc.c:141:10: warning: Although the value stored to 'nbytes' is used in the enclosing expression, the value is never actually read from 'nbytes' [clang-analyzer-deadcode.DeadStores]
while ((nbytes = walk.nbytes)) {
^ ~~~~~~~~~~~
crypto/pcbc.c:141:10: note: Although the value stored to 'nbytes' is used in the enclosing expression, the value is never actually read from 'nbytes'
while ((nbytes = walk.nbytes)) {
^ ~~~~~~~~~~~
Suppressed 2 warnings (2 in non-user code).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
2 warnings generated.
Suppressed 2 warnings (2 in non-user code).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
2 warnings generated.
Suppressed 2 warnings (2 in non-user code).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
2 warnings generated.
Suppressed 2 warnings (2 in non-user code).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
2 warnings generated.
Suppressed 2 warnings (2 in non-user code).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
3 warnings generated.
Suppressed 3 warnings (3 in non-user code).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
3 warnings generated.
Suppressed 3 warnings (3 in non-user code).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
4 warnings generated.
fs/btrfs/free-space-cache.c:785:2: warning: Value stored to 'ret' is never read [clang-analyzer-deadcode.DeadStores]
ret = -1;
^ ~~
fs/btrfs/free-space-cache.c:785:2: note: Value stored to 'ret' is never read
ret = -1;
^ ~~
Suppressed 3 warnings (3 in non-user code).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
3 warnings generated.
fs/btrfs/zlib.c:225:13: warning: The left operand of '!=' is a garbage value [clang-analyzer-core.UndefinedBinaryOperatorResult]
while (ret != Z_STREAM_END) {
~~~ ^
fs/btrfs/zlib.c:99:2: note: 'ret' declared without an initial value
int ret;
^~~~~~~
fs/btrfs/zlib.c:115:6: note: Assuming the condition is false
if (Z_OK != zlib_deflateInit(&workspace->strm, workspace->level)) {
^
include/linux/zlib.h:148:25: note: expanded from macro 'Z_OK'
#define Z_OK 0
^
fs/btrfs/zlib.c:115:2: note: Taking false branch
if (Z_OK != zlib_deflateInit(&workspace->strm, workspace->level)) {
^
fs/btrfs/zlib.c:125:6: note: Assuming 'out_page' is not equal to NULL
if (out_page == NULL) {
^~~~~~~~~~~~~~~~
fs/btrfs/zlib.c:125:2: note: Taking false branch
if (out_page == NULL) {
^
fs/btrfs/zlib.c:138:9: note: Assuming 'len' is <= field 'total_in'
while (workspace->strm.total_in < len) {
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fs/btrfs/zlib.c:138:2: note: Loop condition is false. Execution continues on line 220
while (workspace->strm.total_in < len) {
^
fs/btrfs/zlib.c:225:13: note: The left operand of '!=' is a garbage value
while (ret != Z_STREAM_END) {
~~~ ^
Suppressed 2 warnings (2 in non-user code).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
4 warnings generated.
>> fs/btrfs/lzo.c:413:3: warning: Value stored to 'ret' is never read [clang-analyzer-deadcode.DeadStores]
ret = 0;
^ ~
fs/btrfs/lzo.c:413:3: note: Value stored to 'ret' is never read
ret = 0;
^ ~
Suppressed 3 warnings (3 in non-user code).
Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well.
6 warnings generated.
fs/btrfs/zstd.c:444:4: warning: Value stored to 'tot_out' is never read [clang-analyzer-deadcode.DeadStores]
tot_out += workspace->out_buf.pos;
^ ~~~~~~~~~~~~~~~~~~~~~~
fs/btrfs/zstd.c:444:4: note: Value stored to 'tot_out' is never read
tot_out += workspace->out_buf.pos;
^ ~~~~~~~~~~~~~~~~~~~~~~
fs/btrfs/zstd.c:503:4: warning: Value stored to 'tot_out' is never read [clang-analyzer-deadcode.DeadStores]
tot_out += workspace->out_buf.pos;
^ ~~~~~~~~~~~~~~~~~~~~~~
fs/btrfs/zstd.c:503:4: note: Value stored to 'tot_out' is never read
tot_out += workspace->out_buf.pos;
^ ~~~~~~~~~~~~~~~~~~~~~~
include/linux/page-flags.h:251:23: warning: Dereference of null pointer [clang-analyzer-core.NullDereference]
unsigned long head = READ_ONCE(page->compound_head);
^
include/asm-generic/rwonce.h:50:2: note: expanded from macro 'READ_ONCE'
__READ_ONCE(x); \
^
include/asm-generic/rwonce.h:44:24: note: expanded from macro '__READ_ONCE'
#define __READ_ONCE(x) (*(const volatile __unqual_scalar_typeof(x) *)&(x))
^
fs/btrfs/zstd.c:381:2: note: 'in_page' initialized to a null pointer value
struct page *in_page = NULL; /* The current page to read */
^~~~~~~~~~~~~~~~~~~~
fs/btrfs/zstd.c:398:6: note: Assuming 'stream' is null
if (!stream) {
^~~~~~~
fs/btrfs/zstd.c:398:2: note: Taking true branch
if (!stream) {
^
fs/btrfs/zstd.c:399:3: note: Loop condition is false. Exiting loop
pr_warn("BTRFS: zstd_init_cstream failed\n");
^
include/linux/printk.h:508:2: note: expanded from macro 'pr_warn'
printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
^
include/linux/printk.h:455:26: note: expanded from macro 'printk'
#define printk(fmt, ...) printk_index_wrap(_printk, fmt, ##__VA_ARGS__)
^
include/linux/printk.h:426:3: note: expanded from macro 'printk_index_wrap'
__printk_index_emit(_fmt, NULL, NULL); \
^
include/linux/printk.h:401:34: note: expanded from macro '__printk_index_emit'
#define __printk_index_emit(...) do {} while (0)
^
fs/btrfs/zstd.c:401:3: note: Control jumps to line 534
goto out;
^
fs/btrfs/zstd.c:535:6: note: Assuming field 'src' is non-null
if (workspace->in_buf.src) {
^~~~~~~~~~~~~~~~~~~~~
fs/btrfs/zstd.c:535:2: note: Taking true branch
if (workspace->in_buf.src) {
^
fs/btrfs/zstd.c:536:3: note: Taking false branch
kunmap_local(workspace->in_buf.src);
^
include/linux/highmem-internal.h:286:2: note: expanded from macro 'kunmap_local'
BUILD_BUG_ON(__same_type((__addr), struct page *)); \
^
include/linux/build_bug.h:50:2: note: expanded from macro 'BUILD_BUG_ON'
BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
^
include/linux/build_bug.h:39:37: note: expanded from macro 'BUILD_BUG_ON_MSG'
#define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
^
include/linux/compiler_types.h:397:2: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
^
include/linux/compiler_types.h:385:2: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
^
include/linux/compiler_types.h:377:3: note: expanded from macro '__compiletime_assert'
if (!(condition)) \
^
fs/btrfs/zstd.c:536:3: note: Loop condition is false. Exiting loop
kunmap_local(workspace->in_buf.src);
^
include/linux/highmem-internal.h:286:2: note: expanded from macro 'kunmap_local'
BUILD_BUG_ON(__same_type((__addr), struct page *)); \
^
include/linux/build_bug.h:50:2: note: expanded from macro 'BUILD_BUG_ON'
BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
^
include/linux/build_bug.h:39:37: note: expanded from macro 'BUILD_BUG_ON_MSG'
#define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
^
include/linux/compiler_types.h:397:2: note: expanded from macro 'compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
^
include/linux/compiler_types.h:385:2: note: expanded from macro '_compiletime_assert'
__compiletime_assert(condition, msg, prefix, suffix)
vim +/ret +413 fs/btrfs/lzo.c
a6fa6fae40ec33 Li Zefan 2010-10-25 329
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 330 int lzo_decompress_bio(struct list_head *ws, struct compressed_bio *cb)
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 331 {
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 332 struct workspace *workspace = list_entry(ws, struct workspace, list);
80f96b2a77e63b Christoph Hellwig 2023-02-10 333 const struct btrfs_fs_info *fs_info = cb->bbio.inode->root->fs_info;
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 334 const u32 sectorsize = fs_info->sectorsize;
ccaa66c8dd277a David Sterba 2021-10-27 335 char *kaddr;
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 336 int ret;
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 337 /* Compressed data length, can be unaligned */
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 338 u32 len_in;
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 339 /* Offset inside the compressed data */
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 340 u32 cur_in = 0;
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 341 /* Bytes decompressed so far */
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 342 u32 cur_out = 0;
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 343
51c0674a56f982 Fabio M. De Francesco 2022-05-31 344 kaddr = kmap_local_page(cb->compressed_pages[0]);
ccaa66c8dd277a David Sterba 2021-10-27 345 len_in = read_compress_length(kaddr);
51c0674a56f982 Fabio M. De Francesco 2022-05-31 346 kunmap_local(kaddr);
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 347 cur_in += LZO_LEN;
a6fa6fae40ec33 Li Zefan 2010-10-25 348
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 349 /*
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 350 * LZO header length check
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 351 *
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 352 * The total length should not exceed the maximum extent length,
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 353 * and all sectors should be used.
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 354 * If this happens, it means the compressed extent is corrupted.
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 355 */
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 356 if (len_in > min_t(size_t, BTRFS_MAX_COMPRESSED, cb->compressed_len) ||
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 357 round_up(len_in, sectorsize) < cb->compressed_len) {
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 358 btrfs_err(fs_info,
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 359 "invalid lzo header, lzo len %u compressed len %u",
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 360 len_in, cb->compressed_len);
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 361 return -EUCLEAN;
a6fa6fae40ec33 Li Zefan 2010-10-25 362 }
ca9b688c1c9a21 Li Zefan 2011-02-16 363
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 364 /* Go through each lzo segment */
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 365 while (cur_in < len_in) {
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 366 struct page *cur_page;
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 367 /* Length of the compressed segment */
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 368 u32 seg_len;
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 369 u32 sector_bytes_left;
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 370 size_t out_len = lzo1x_worst_compress(sectorsize);
a6fa6fae40ec33 Li Zefan 2010-10-25 371
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 372 /*
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 373 * We should always have enough space for one segment header
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 374 * inside current sector.
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 375 */
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 376 ASSERT(cur_in / sectorsize ==
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 377 (cur_in + LZO_LEN - 1) / sectorsize);
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 378 cur_page = cb->compressed_pages[cur_in / PAGE_SIZE];
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 379 ASSERT(cur_page);
51c0674a56f982 Fabio M. De Francesco 2022-05-31 380 kaddr = kmap_local_page(cur_page);
ccaa66c8dd277a David Sterba 2021-10-27 381 seg_len = read_compress_length(kaddr + offset_in_page(cur_in));
51c0674a56f982 Fabio M. De Francesco 2022-05-31 382 kunmap_local(kaddr);
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 383 cur_in += LZO_LEN;
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 384
dc4a4bdb3f22f9 Dāvis Mosāns 2022-02-02 385 if (seg_len > WORKSPACE_CBUF_LENGTH) {
741b23a970a79d Dāvis Mosāns 2022-02-02 386 /*
741b23a970a79d Dāvis Mosāns 2022-02-02 387 * seg_len shouldn't be larger than we have allocated
741b23a970a79d Dāvis Mosāns 2022-02-02 388 * for workspace->cbuf
741b23a970a79d Dāvis Mosāns 2022-02-02 389 */
741b23a970a79d Dāvis Mosāns 2022-02-02 390 btrfs_err(fs_info, "unexpectedly large lzo segment len %u",
741b23a970a79d Dāvis Mosāns 2022-02-02 391 seg_len);
0a793f2ddff445 Christoph Hellwig 2023-03-07 392 return -EIO;
741b23a970a79d Dāvis Mosāns 2022-02-02 393 }
741b23a970a79d Dāvis Mosāns 2022-02-02 394
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 395 /* Copy the compressed segment payload into workspace */
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 396 copy_compressed_segment(cb, workspace->cbuf, seg_len, &cur_in);
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 397
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 398 /* Decompress the data */
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 399 ret = lzo1x_decompress_safe(workspace->cbuf, seg_len,
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 400 workspace->buf, &out_len);
a6fa6fae40ec33 Li Zefan 2010-10-25 401 if (ret != LZO_E_OK) {
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 402 btrfs_err(fs_info, "failed to decompress");
0a793f2ddff445 Christoph Hellwig 2023-03-07 403 return -EIO;
a6fa6fae40ec33 Li Zefan 2010-10-25 404 }
a6fa6fae40ec33 Li Zefan 2010-10-25 405
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 406 /* Copy the data into inode pages */
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 407 ret = btrfs_decompress_buf2page(workspace->buf, out_len, cb, cur_out);
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 408 cur_out += out_len;
a6fa6fae40ec33 Li Zefan 2010-10-25 409
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 410 /* All data read, exit */
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 411 if (ret == 0)
0a793f2ddff445 Christoph Hellwig 2023-03-07 412 return 0;
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 @413 ret = 0;
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 414
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 415 /* Check if the sector has enough space for a segment header */
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 416 sector_bytes_left = sectorsize - (cur_in % sectorsize);
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 417 if (sector_bytes_left >= LZO_LEN)
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 418 continue;
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 419
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 420 /* Skip the padding zeros */
a6e66e6f8c1b68 Qu Wenruo 2021-07-26 421 cur_in += sector_bytes_left;
a6fa6fae40ec33 Li Zefan 2010-10-25 422 }
0a793f2ddff445 Christoph Hellwig 2023-03-07 423
0a793f2ddff445 Christoph Hellwig 2023-03-07 424 return 0;
a6fa6fae40ec33 Li Zefan 2010-10-25 425 }
a6fa6fae40ec33 Li Zefan 2010-10-25 426
:::::: The code at line 413 was first introduced by commit
:::::: a6e66e6f8c1b685e11b778bef614480a9c1a5278 btrfs: rework lzo_decompress_bio() to make it subpage compatible
:::::: TO: Qu Wenruo <wqu@suse.com>
:::::: CC: David Sterba <dsterba@suse.com>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests
next reply other threads:[~2023-03-28 19:39 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-28 19:39 kernel test robot [this message]
2023-03-30 3:24 [kdave-btrfs-devel:misc-next 54/97] fs/btrfs/lzo.c:413:3: warning: Value stored to 'ret' is never read [clang-analyzer-deadcode.DeadStores] kernel test robot
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