[bvanassche:f2fs 2/4] include/linux/build_bug.h:78:41: error: static assertion failed: ""

From: kernel test robot
Date: Sun Jul 24 2022 - 23:24:31 EST

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tree: https://github.com/bvanassche/linux f2fs
head: 60251142bb6f7bdec515d53e4667eb893fca4454
commit: e3ea6c10e5f69ea3ac4f2312737d7228fb663a8f [2/4] f2fs: Verify the size of on-disk structures at compile time
config: arm-randconfig-c023-20220724 (https://download.01.org/0day-ci/archive/20220725/202207251111.i3B7nJVK-lkp@xxxxxxxxx/config)
compiler: arm-linux-gnueabi-gcc (GCC) 12.1.0
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/e3ea6c10e5f69ea3ac4f2312737d7228fb663a8f
git remote add bvanassche https://github.com/bvanassche/linux
git fetch --no-tags bvanassche f2fs
git checkout e3ea6c10e5f69ea3ac4f2312737d7228fb663a8f
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash fs/f2fs/

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

All errors (new ones prefixed by >>):

In file included from include/linux/container_of.h:5,
from include/linux/list.h:5,
from include/linux/wait.h:7,
from include/linux/wait_bit.h:8,
from include/linux/fs.h:6,
from fs/f2fs/dir.c:9:
>> include/linux/build_bug.h:78:41: error: static assertion failed: ""
78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
| ^~~~~~~~~~~~~~
include/linux/build_bug.h:77:34: note: in expansion of macro '__static_assert'
77 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
| ^~~~~~~~~~~~~~~
include/linux/f2fs_fs.h:441:1: note: in expansion of macro 'static_assert'
441 | static_assert(sizeof(struct f2fs_summary) == 7, "");
| ^~~~~~~~~~~~~
>> include/linux/build_bug.h:78:41: error: static assertion failed: ""
78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
| ^~~~~~~~~~~~~~
include/linux/build_bug.h:77:34: note: in expansion of macro '__static_assert'
77 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
| ^~~~~~~~~~~~~~~
include/linux/f2fs_fs.h:527:1: note: in expansion of macro 'static_assert'
527 | static_assert(sizeof(struct f2fs_journal) == 507, "");
| ^~~~~~~~~~~~~
>> include/linux/build_bug.h:78:41: error: static assertion failed: ""
78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
| ^~~~~~~~~~~~~~
include/linux/build_bug.h:77:34: note: in expansion of macro '__static_assert'
77 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
| ^~~~~~~~~~~~~~~
include/linux/f2fs_fs.h:536:1: note: in expansion of macro 'static_assert'
536 | static_assert(sizeof(struct f2fs_summary_block) == 4096, "");
| ^~~~~~~~~~~~~
--
In file included from include/linux/container_of.h:5,
from include/linux/list.h:5,
from include/linux/wait.h:7,
from include/linux/wait_bit.h:8,
from include/linux/fs.h:6,
from fs/f2fs/file.c:8:
>> include/linux/build_bug.h:78:41: error: static assertion failed: ""
78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
| ^~~~~~~~~~~~~~
include/linux/build_bug.h:77:34: note: in expansion of macro '__static_assert'
77 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
| ^~~~~~~~~~~~~~~
include/linux/f2fs_fs.h:441:1: note: in expansion of macro 'static_assert'
441 | static_assert(sizeof(struct f2fs_summary) == 7, "");
| ^~~~~~~~~~~~~
>> include/linux/build_bug.h:78:41: error: static assertion failed: ""
78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
| ^~~~~~~~~~~~~~
include/linux/build_bug.h:77:34: note: in expansion of macro '__static_assert'
77 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
| ^~~~~~~~~~~~~~~
include/linux/f2fs_fs.h:527:1: note: in expansion of macro 'static_assert'
527 | static_assert(sizeof(struct f2fs_journal) == 507, "");
| ^~~~~~~~~~~~~
>> include/linux/build_bug.h:78:41: error: static assertion failed: ""
78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
| ^~~~~~~~~~~~~~
include/linux/build_bug.h:77:34: note: in expansion of macro '__static_assert'
77 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
| ^~~~~~~~~~~~~~~
include/linux/f2fs_fs.h:536:1: note: in expansion of macro 'static_assert'
536 | static_assert(sizeof(struct f2fs_summary_block) == 4096, "");
| ^~~~~~~~~~~~~
In file included from include/linux/kernel.h:26,
from include/linux/cpumask.h:10,
from include/linux/smp.h:13,
from include/linux/lockdep.h:14,
from include/linux/spinlock.h:62,
from include/linux/wait.h:9:
fs/f2fs/segment.h: In function 'seg_info_to_sit_page':
include/linux/minmax.h:20:35: warning: comparison of distinct pointer types lacks a cast
20 | (!!(sizeof((typeof(x) *)1 == (typeof(y) *)1)))
| ^~
include/linux/minmax.h:26:18: note: in expansion of macro '__typecheck'
26 | (__typecheck(x, y) && __no_side_effects(x, y))
| ^~~~~~~~~~~
include/linux/minmax.h:36:31: note: in expansion of macro '__safe_cmp'
36 | __builtin_choose_expr(__safe_cmp(x, y), \
| ^~~~~~~~~~
include/linux/minmax.h:45:25: note: in expansion of macro '__careful_cmp'
45 | #define min(x, y) __careful_cmp(x, y, <)
| ^~~~~~~~~~~~~
fs/f2fs/segment.h:417:28: note: in expansion of macro 'min'
417 | unsigned int end = min(start + SIT_ENTRY_PER_BLOCK,
| ^~~
--
In file included from include/linux/container_of.h:5,
from include/linux/list.h:5,
from include/linux/wait.h:7,
from include/linux/wait_bit.h:8,
from include/linux/fs.h:6,
from fs/f2fs/segment.c:8:
>> include/linux/build_bug.h:78:41: error: static assertion failed: ""
78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
| ^~~~~~~~~~~~~~
include/linux/build_bug.h:77:34: note: in expansion of macro '__static_assert'
77 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
| ^~~~~~~~~~~~~~~
include/linux/f2fs_fs.h:441:1: note: in expansion of macro 'static_assert'
441 | static_assert(sizeof(struct f2fs_summary) == 7, "");
| ^~~~~~~~~~~~~
>> include/linux/build_bug.h:78:41: error: static assertion failed: ""
78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
| ^~~~~~~~~~~~~~
include/linux/build_bug.h:77:34: note: in expansion of macro '__static_assert'
77 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
| ^~~~~~~~~~~~~~~
include/linux/f2fs_fs.h:527:1: note: in expansion of macro 'static_assert'
527 | static_assert(sizeof(struct f2fs_journal) == 507, "");
| ^~~~~~~~~~~~~
>> include/linux/build_bug.h:78:41: error: static assertion failed: ""
78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
| ^~~~~~~~~~~~~~
include/linux/build_bug.h:77:34: note: in expansion of macro '__static_assert'
77 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
| ^~~~~~~~~~~~~~~
include/linux/f2fs_fs.h:536:1: note: in expansion of macro 'static_assert'
536 | static_assert(sizeof(struct f2fs_summary_block) == 4096, "");
| ^~~~~~~~~~~~~
In file included from include/linux/kernel.h:26,
from include/linux/cpumask.h:10,
from include/linux/smp.h:13,
from include/linux/lockdep.h:14,
from include/linux/spinlock.h:62,
from include/linux/wait.h:9:
fs/f2fs/segment.h: In function 'seg_info_to_sit_page':
include/linux/minmax.h:20:35: warning: comparison of distinct pointer types lacks a cast
20 | (!!(sizeof((typeof(x) *)1 == (typeof(y) *)1)))
| ^~
include/linux/minmax.h:26:18: note: in expansion of macro '__typecheck'
26 | (__typecheck(x, y) && __no_side_effects(x, y))
| ^~~~~~~~~~~
include/linux/minmax.h:36:31: note: in expansion of macro '__safe_cmp'
36 | __builtin_choose_expr(__safe_cmp(x, y), \
| ^~~~~~~~~~
include/linux/minmax.h:45:25: note: in expansion of macro '__careful_cmp'
45 | #define min(x, y) __careful_cmp(x, y, <)
| ^~~~~~~~~~~~~
fs/f2fs/segment.h:417:28: note: in expansion of macro 'min'
417 | unsigned int end = min(start + SIT_ENTRY_PER_BLOCK,
| ^~~
fs/f2fs/segment.c: In function 'f2fs_flush_sit_entries':
include/linux/minmax.h:20:35: warning: comparison of distinct pointer types lacks a cast
20 | (!!(sizeof((typeof(x) *)1 == (typeof(y) *)1)))
| ^~
include/linux/minmax.h:26:18: note: in expansion of macro '__typecheck'
26 | (__typecheck(x, y) && __no_side_effects(x, y))
| ^~~~~~~~~~~
include/linux/minmax.h:36:31: note: in expansion of macro '__safe_cmp'
36 | __builtin_choose_expr(__safe_cmp(x, y), \
| ^~~~~~~~~~
include/linux/minmax.h:45:25: note: in expansion of macro '__careful_cmp'
45 | #define min(x, y) __careful_cmp(x, y, <)
| ^~~~~~~~~~~~~
fs/f2fs/segment.c:4070:36: note: in expansion of macro 'min'
4070 | unsigned int end = min(start_segno + SIT_ENTRY_PER_BLOCK,
| ^~~

vim +78 include/linux/build_bug.h

bc6245e5efd70c Ian Abbott 2017-07-10 60
6bab69c65013be Rasmus Villemoes 2019-03-07 61 /**
6bab69c65013be Rasmus Villemoes 2019-03-07 62 * static_assert - check integer constant expression at build time
6bab69c65013be Rasmus Villemoes 2019-03-07 63 *
6bab69c65013be Rasmus Villemoes 2019-03-07 64 * static_assert() is a wrapper for the C11 _Static_assert, with a
6bab69c65013be Rasmus Villemoes 2019-03-07 65 * little macro magic to make the message optional (defaulting to the
6bab69c65013be Rasmus Villemoes 2019-03-07 66 * stringification of the tested expression).
6bab69c65013be Rasmus Villemoes 2019-03-07 67 *
6bab69c65013be Rasmus Villemoes 2019-03-07 68 * Contrary to BUILD_BUG_ON(), static_assert() can be used at global
6bab69c65013be Rasmus Villemoes 2019-03-07 69 * scope, but requires the expression to be an integer constant
6bab69c65013be Rasmus Villemoes 2019-03-07 70 * expression (i.e., it is not enough that __builtin_constant_p() is
6bab69c65013be Rasmus Villemoes 2019-03-07 71 * true for expr).
6bab69c65013be Rasmus Villemoes 2019-03-07 72 *
6bab69c65013be Rasmus Villemoes 2019-03-07 73 * Also note that BUILD_BUG_ON() fails the build if the condition is
6bab69c65013be Rasmus Villemoes 2019-03-07 74 * true, while static_assert() fails the build if the expression is
6bab69c65013be Rasmus Villemoes 2019-03-07 75 * false.
6bab69c65013be Rasmus Villemoes 2019-03-07 76 */
6bab69c65013be Rasmus Villemoes 2019-03-07 77 #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr)
6bab69c65013be Rasmus Villemoes 2019-03-07 @78 #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
6bab69c65013be Rasmus Villemoes 2019-03-07 79

:::::: The code at line 78 was first introduced by commit
:::::: 6bab69c65013bed5fce9f101a64a84d0385b3946 build_bug.h: add wrapper for _Static_assert

:::::: TO: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>
:::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>

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

Next message: Michael Ellerman: "Re: [PATCH] powerpc: Remove the static variable initialisations to 0"
Previous message: maobibo: "Re: [PATCH 1/2] LoongArch: Remove clock setting during cpu hotplug stage"
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