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Subject[bvanassche:f2fs 2/3] include/linux/f2fs_fs.h:364:1: error: static_assert failed due to requirement 'sizeof(struct f2fs_nat_block) == 4095':
tree:   https://github.com/bvanassche/linux f2fs
head: 93e015b268055bcd2dc2f03bcb2c1311dff33c5e
commit: c8670ac5d2e3a0351cefc7ca9722cf532c3fa823 [2/3] Verify structure sizes at compile time
config: hexagon-randconfig-r041-20220717 (https://download.01.org/0day-ci/archive/20220718/202207180909.eQsJ5h8G-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project d74b88c69dc2644bd0dc5d64e2d7413a0d4040e5)
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
# https://github.com/bvanassche/linux/commit/c8670ac5d2e3a0351cefc7ca9722cf532c3fa823
git remote add bvanassche https://github.com/bvanassche/linux
git fetch --no-tags bvanassche f2fs
git checkout c8670ac5d2e3a0351cefc7ca9722cf532c3fa823
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash fs/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

In file included from fs/f2fs/dir.c:10:
>> include/linux/f2fs_fs.h:364:1: error: static_assert failed due to requirement 'sizeof(struct f2fs_nat_block) == 4095':
static_assert(sizeof(struct f2fs_nat_block) == 4095, "");
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:77:34: note: expanded from macro 'static_assert'
#define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
^ ~~~~
include/linux/build_bug.h:78:41: note: expanded from macro '__static_assert'
#define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
^ ~~~~
In file included from fs/f2fs/dir.c:10:
>> include/linux/f2fs_fs.h:407:1: error: static_assert failed due to requirement 'sizeof(struct f2fs_sit_block) == 4070':
static_assert(sizeof(struct f2fs_sit_block) == 4070, "");
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:77:34: note: expanded from macro 'static_assert'
#define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
^ ~~~~
include/linux/build_bug.h:78:41: note: expanded from macro '__static_assert'
#define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
^ ~~~~
2 errors generated.


vim +364 include/linux/f2fs_fs.h

363
> 364 static_assert(sizeof(struct f2fs_nat_block) == 4095, "");
365
366 /*
367 * For SIT entries
368 *
369 * Each segment is 2MB in size by default so that a bitmap for validity of
370 * there-in blocks should occupy 64 bytes, 512 bits.
371 * Not allow to change this.
372 */
373 #define SIT_VBLOCK_MAP_SIZE 64
374 #define SIT_ENTRY_PER_BLOCK (PAGE_SIZE / sizeof(struct f2fs_sit_entry))
375
376 /*
377 * F2FS uses 4 bytes to represent block address. As a result, supported size of
378 * disk is 16 TB and it equals to 16 * 1024 * 1024 / 2 segments.
379 */
380 #define F2FS_MAX_SEGMENT ((16 * 1024 * 1024) / 2)
381
382 /*
383 * Note that f2fs_sit_entry->vblocks has the following bit-field information.
384 * [15:10] : allocation type such as CURSEG_XXXX_TYPE
385 * [9:0] : valid block count
386 */
387 #define SIT_VBLOCKS_SHIFT 10
388 #define SIT_VBLOCKS_MASK ((1 << SIT_VBLOCKS_SHIFT) - 1)
389 #define GET_SIT_VBLOCKS(raw_sit) \
390 (le16_to_cpu((raw_sit)->vblocks) & SIT_VBLOCKS_MASK)
391 #define GET_SIT_TYPE(raw_sit) \
392 ((le16_to_cpu((raw_sit)->vblocks) & ~SIT_VBLOCKS_MASK) \
393 >> SIT_VBLOCKS_SHIFT)
394
395 struct f2fs_sit_entry {
396 __le16 vblocks; /* reference above */
397 __u8 valid_map[SIT_VBLOCK_MAP_SIZE]; /* bitmap for valid blocks */
398 __le64 mtime; /* segment age for cleaning */
399 } __packed;
400
401 static_assert(sizeof(struct f2fs_sit_entry) == 74, "");
402
403 struct f2fs_sit_block {
404 struct f2fs_sit_entry entries[SIT_ENTRY_PER_BLOCK];
405 } __packed;
406
> 407 static_assert(sizeof(struct f2fs_sit_block) == 4070, "");
408

--
0-DAY CI Kernel Test Service
https://01.org/lkp

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