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Date: Fri, 17 Jun 2022 21:51:11 +0800
From: kernel test robot <lkp@...el.com>
To: James Morse <james.morse@....com>
Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [morse:mpam/snapshot/v5.18 66/146]
include/linux/compiler_types.h:352:45: error: call to
'__compiletime_assert_224' declared with attribute error: FIELD_GET: mask is
not constant
tree: https://git.kernel.org/pub/scm/linux/kernel/git/morse/linux.git mpam/snapshot/v5.18
head: bac90d25cbdee0fc233b9b1c47d5b6f44101a384
commit: 2881ac404cd937d1529d641acc4055fb14822de0 [66/146] fs/resctrl: Export the closid/rmid to user-space
config: i386-randconfig-a005 (https://download.01.org/0day-ci/archive/20220617/202206172131.vepUdudV-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
reproduce (this is a W=1 build):
# https://git.kernel.org/pub/scm/linux/kernel/git/morse/linux.git/commit/?id=2881ac404cd937d1529d641acc4055fb14822de0
git remote add morse https://git.kernel.org/pub/scm/linux/kernel/git/morse/linux.git
git fetch --no-tags morse mpam/snapshot/v5.18
git checkout 2881ac404cd937d1529d641acc4055fb14822de0
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash fs/
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>
All errors (new ones prefixed by >>):
| ^~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:50:9: note: in expansion of macro 'BUILD_BUG_ON_MSG'
50 | BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
| ^~~~~~~~~~~~~~~~
include/linux/build_bug.h:21:9: note: in expansion of macro 'BUILD_BUG_ON'
21 | BUILD_BUG_ON(((n) & ((n) - 1)) != 0)
| ^~~~~~~~~~~~
include/linux/bitfield.h:74:17: note: in expansion of macro '__BUILD_BUG_ON_NOT_POWER_OF_2'
74 | __BUILD_BUG_ON_NOT_POWER_OF_2((_mask) + \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:75:56: note: in expansion of macro '__bf_shf'
75 | (1ULL << __bf_shf(_mask))); \
| ^~~~~~~~
include/linux/bitfield.h:114:17: note: in expansion of macro '__BF_FIELD_CHECK'
114 | __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \
| ^~~~~~~~~~~~~~~~
fs/resctrl/rdtgroup.c:1461:14: note: in expansion of macro 'FIELD_PREP'
1461 | FIELD_PREP(RESCTRL_ID_RMID, rmid);
| ^~~~~~~~~~
include/linux/bits.h:38:38: note: in expansion of macro '__GENMASK'
38 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
| ^~~~~~~~~
include/linux/resctrl.h:40:33: note: in expansion of macro 'GENMASK'
40 | #define RESCTRL_ID_RMID GENMASK(63, 32)
| ^~~~~~~
fs/resctrl/rdtgroup.c:1461:25: note: in expansion of macro 'RESCTRL_ID_RMID'
1461 | FIELD_PREP(RESCTRL_ID_RMID, rmid);
| ^~~~~~~~~~~~~~~
In file included from include/linux/resctrl.h:5,
from fs/resctrl/internal.h:5,
from fs/resctrl/rdtgroup.c:33:
include/linux/bits.h:35:29: warning: left shift count >= width of type [-Wshift-count-overflow]
35 | (((~UL(0)) - (UL(1) << (l)) + 1) & \
| ^~
include/linux/bitfield.h:45:38: note: in definition of macro '__bf_shf'
45 | #define __bf_shf(x) (__builtin_ffsll(x) - 1)
| ^
fs/resctrl/rdtgroup.c:1461:14: note: in expansion of macro 'FIELD_PREP'
1461 | FIELD_PREP(RESCTRL_ID_RMID, rmid);
| ^~~~~~~~~~
include/linux/bits.h:38:38: note: in expansion of macro '__GENMASK'
38 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
| ^~~~~~~~~
include/linux/resctrl.h:40:33: note: in expansion of macro 'GENMASK'
40 | #define RESCTRL_ID_RMID GENMASK(63, 32)
| ^~~~~~~
fs/resctrl/rdtgroup.c:1461:25: note: in expansion of macro 'RESCTRL_ID_RMID'
1461 | FIELD_PREP(RESCTRL_ID_RMID, rmid);
| ^~~~~~~~~~~~~~~
include/linux/bits.h:36:18: warning: right shift count is negative [-Wshift-count-negative]
36 | (~UL(0) >> (BITS_PER_LONG - 1 - (h))))
| ^~
include/linux/bitfield.h:45:38: note: in definition of macro '__bf_shf'
45 | #define __bf_shf(x) (__builtin_ffsll(x) - 1)
| ^
fs/resctrl/rdtgroup.c:1461:14: note: in expansion of macro 'FIELD_PREP'
1461 | FIELD_PREP(RESCTRL_ID_RMID, rmid);
| ^~~~~~~~~~
include/linux/bits.h:38:38: note: in expansion of macro '__GENMASK'
38 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
| ^~~~~~~~~
include/linux/resctrl.h:40:33: note: in expansion of macro 'GENMASK'
40 | #define RESCTRL_ID_RMID GENMASK(63, 32)
| ^~~~~~~
fs/resctrl/rdtgroup.c:1461:25: note: in expansion of macro 'RESCTRL_ID_RMID'
1461 | FIELD_PREP(RESCTRL_ID_RMID, rmid);
| ^~~~~~~~~~~~~~~
include/linux/bits.h:35:29: warning: left shift count >= width of type [-Wshift-count-overflow]
35 | (((~UL(0)) - (UL(1) << (l)) + 1) & \
| ^~
include/linux/bitfield.h:115:63: note: in definition of macro 'FIELD_PREP'
115 | ((typeof(_mask))(_val) << __bf_shf(_mask)) & (_mask); \
| ^~~~~
include/linux/bits.h:38:38: note: in expansion of macro '__GENMASK'
38 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
| ^~~~~~~~~
include/linux/resctrl.h:40:33: note: in expansion of macro 'GENMASK'
40 | #define RESCTRL_ID_RMID GENMASK(63, 32)
| ^~~~~~~
fs/resctrl/rdtgroup.c:1461:25: note: in expansion of macro 'RESCTRL_ID_RMID'
1461 | FIELD_PREP(RESCTRL_ID_RMID, rmid);
| ^~~~~~~~~~~~~~~
include/linux/bits.h:36:18: warning: right shift count is negative [-Wshift-count-negative]
36 | (~UL(0) >> (BITS_PER_LONG - 1 - (h))))
| ^~
include/linux/bitfield.h:115:63: note: in definition of macro 'FIELD_PREP'
115 | ((typeof(_mask))(_val) << __bf_shf(_mask)) & (_mask); \
| ^~~~~
include/linux/bits.h:38:38: note: in expansion of macro '__GENMASK'
38 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
| ^~~~~~~~~
include/linux/resctrl.h:40:33: note: in expansion of macro 'GENMASK'
40 | #define RESCTRL_ID_RMID GENMASK(63, 32)
| ^~~~~~~
fs/resctrl/rdtgroup.c:1461:25: note: in expansion of macro 'RESCTRL_ID_RMID'
1461 | FIELD_PREP(RESCTRL_ID_RMID, rmid);
| ^~~~~~~~~~~~~~~
In file included from <command-line>:
In function '__resctrl_id_decode',
inlined from 'resctrl_id_decode' at fs/resctrl/rdtgroup.c:1471:2:
>> include/linux/compiler_types.h:352:45: error: call to '__compiletime_assert_224' declared with attribute error: FIELD_GET: mask is not constant
352 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^
include/linux/compiler_types.h:333:25: note: in definition of macro '__compiletime_assert'
333 | prefix ## suffix(); \
| ^~~~~~
include/linux/compiler_types.h:352:9: note: in expansion of macro '_compiletime_assert'
352 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
| ^~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:65:17: note: in expansion of macro 'BUILD_BUG_ON_MSG'
65 | BUILD_BUG_ON_MSG(!__builtin_constant_p(_mask), \
| ^~~~~~~~~~~~~~~~
include/linux/bitfield.h:128:17: note: in expansion of macro '__BF_FIELD_CHECK'
128 | __BF_FIELD_CHECK(_mask, _reg, 0U, "FIELD_GET: "); \
| ^~~~~~~~~~~~~~~~
include/linux/resctrl.h:286:17: note: in expansion of macro 'FIELD_GET'
286 | *rmid = FIELD_GET(RESCTRL_ID_RMID, id);
| ^~~~~~~~~
In function 'resctrl_id_encode',
inlined from 'rdtgroup_id_show' at fs/resctrl/rdtgroup.c:1507:8:
>> include/linux/compiler_types.h:352:45: error: call to '__compiletime_assert_246' declared with attribute error: FIELD_PREP: mask is not constant
352 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^
include/linux/compiler_types.h:333:25: note: in definition of macro '__compiletime_assert'
333 | prefix ## suffix(); \
| ^~~~~~
include/linux/compiler_types.h:352:9: note: in expansion of macro '_compiletime_assert'
352 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
| ^~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:65:17: note: in expansion of macro 'BUILD_BUG_ON_MSG'
65 | BUILD_BUG_ON_MSG(!__builtin_constant_p(_mask), \
| ^~~~~~~~~~~~~~~~
include/linux/bitfield.h:114:17: note: in expansion of macro '__BF_FIELD_CHECK'
114 | __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \
| ^~~~~~~~~~~~~~~~
fs/resctrl/rdtgroup.c:1461:14: note: in expansion of macro 'FIELD_PREP'
1461 | FIELD_PREP(RESCTRL_ID_RMID, rmid);
| ^~~~~~~~~~
vim +/__compiletime_assert_224 +352 include/linux/compiler_types.h
eb5c2d4b45e3d2 Will Deacon 2020-07-21 338
eb5c2d4b45e3d2 Will Deacon 2020-07-21 339 #define _compiletime_assert(condition, msg, prefix, suffix) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21 340 __compiletime_assert(condition, msg, prefix, suffix)
eb5c2d4b45e3d2 Will Deacon 2020-07-21 341
eb5c2d4b45e3d2 Will Deacon 2020-07-21 342 /**
eb5c2d4b45e3d2 Will Deacon 2020-07-21 343 * compiletime_assert - break build and emit msg if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21 344 * @condition: a compile-time constant condition to check
eb5c2d4b45e3d2 Will Deacon 2020-07-21 345 * @msg: a message to emit if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21 346 *
eb5c2d4b45e3d2 Will Deacon 2020-07-21 347 * In tradition of POSIX assert, this macro will break the build if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21 348 * supplied condition is *false*, emitting the supplied error message if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21 349 * compiler has support to do so.
eb5c2d4b45e3d2 Will Deacon 2020-07-21 350 */
eb5c2d4b45e3d2 Will Deacon 2020-07-21 351 #define compiletime_assert(condition, msg) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21 @352 _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
eb5c2d4b45e3d2 Will Deacon 2020-07-21 353
:::::: The code at line 352 was first introduced by commit
:::::: eb5c2d4b45e3d2d5d052ea6b8f1463976b1020d5 compiler.h: Move compiletime_assert() macros into compiler_types.h
:::::: TO: Will Deacon <will@...nel.org>
:::::: CC: Will Deacon <will@...nel.org>
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