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Date: Fri, 1 Jul 2022 18:59:48 +0800
From: kernel test robot <lkp@...el.com>
To: Cristian Marussi <cristian.marussi@....com>
Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
Sudeep Holla <sudeep.holla@....com>
Subject: [sudeep-holla:for-next/scmi 16/23]
include/linux/compiler_types.h:352:45: error: call to
'__compiletime_assert_230' declared with attribute error: FIELD_PREP: mask
is zero
tree: https://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux.git for-next/scmi
head: 2e61c3a948060a0d3a3721cc7bb97f5a6a6c5bb8
commit: 14e52757150274bc005ca64d2b26a7541b9f9161 [16/23] firmware: arm_scmi: Add SCMIv3.1 Powercap protocol basic support
config: arc-allyesconfig (https://download.01.org/0day-ci/archive/20220701/202207011807.lirgFUyX-lkp@intel.com/config)
compiler: arceb-elf-gcc (GCC) 11.3.0
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://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux.git/commit/?id=14e52757150274bc005ca64d2b26a7541b9f9161
git remote add sudeep-holla https://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux.git
git fetch --no-tags sudeep-holla for-next/scmi
git checkout 14e52757150274bc005ca64d2b26a7541b9f9161
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=arc SHELL=/bin/bash
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 >>):
477 | FIELD_PREP(GENMASK(63, 32), power_thresh_high));
| ^~~~~~~~~~
include/linux/bits.h:38:38: note: in expansion of macro '__GENMASK'
38 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
| ^~~~~~~~~
drivers/firmware/arm_scmi/powercap.c:477:29: note: in expansion of macro 'GENMASK'
477 | FIELD_PREP(GENMASK(63, 32), power_thresh_high));
| ^~~~~~~
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/compiler_types.h:332:23: note: in definition of macro '__compiletime_assert'
332 | if (!(condition)) \
| ^~~~~~~~~
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/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: "); \
| ^~~~~~~~~~~~~~~~
drivers/firmware/arm_scmi/powercap.c:477:18: note: in expansion of macro 'FIELD_PREP'
477 | FIELD_PREP(GENMASK(63, 32), power_thresh_high));
| ^~~~~~~~~~
include/linux/bits.h:38:38: note: in expansion of macro '__GENMASK'
38 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
| ^~~~~~~~~
drivers/firmware/arm_scmi/powercap.c:477:29: note: in expansion of macro 'GENMASK'
477 | FIELD_PREP(GENMASK(63, 32), power_thresh_high));
| ^~~~~~~
In file included from drivers/firmware/arm_scmi/powercap.c:10:
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)
| ^
drivers/firmware/arm_scmi/powercap.c:477:18: note: in expansion of macro 'FIELD_PREP'
477 | FIELD_PREP(GENMASK(63, 32), power_thresh_high));
| ^~~~~~~~~~
include/linux/bits.h:38:38: note: in expansion of macro '__GENMASK'
38 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
| ^~~~~~~~~
drivers/firmware/arm_scmi/powercap.c:477:29: note: in expansion of macro 'GENMASK'
477 | FIELD_PREP(GENMASK(63, 32), power_thresh_high));
| ^~~~~~~
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)
| ^
drivers/firmware/arm_scmi/powercap.c:477:18: note: in expansion of macro 'FIELD_PREP'
477 | FIELD_PREP(GENMASK(63, 32), power_thresh_high));
| ^~~~~~~~~~
include/linux/bits.h:38:38: note: in expansion of macro '__GENMASK'
38 | (GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
| ^~~~~~~~~
drivers/firmware/arm_scmi/powercap.c:477:29: note: in expansion of macro 'GENMASK'
477 | FIELD_PREP(GENMASK(63, 32), power_thresh_high));
| ^~~~~~~
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))
| ^~~~~~~~~
drivers/firmware/arm_scmi/powercap.c:477:29: note: in expansion of macro 'GENMASK'
477 | FIELD_PREP(GENMASK(63, 32), power_thresh_high));
| ^~~~~~~
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))
| ^~~~~~~~~
drivers/firmware/arm_scmi/powercap.c:477:29: note: in expansion of macro 'GENMASK'
477 | FIELD_PREP(GENMASK(63, 32), power_thresh_high));
| ^~~~~~~
In file included from <command-line>:
>> include/linux/compiler_types.h:352:45: error: call to '__compiletime_assert_230' declared with attribute error: FIELD_PREP: mask is zero
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:67:17: note: in expansion of macro 'BUILD_BUG_ON_MSG'
67 | BUILD_BUG_ON_MSG((_mask) == 0, _pfx "mask is zero"); \
| ^~~~~~~~~~~~~~~~
include/linux/bitfield.h:114:17: note: in expansion of macro '__BF_FIELD_CHECK'
114 | __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \
| ^~~~~~~~~~~~~~~~
drivers/firmware/arm_scmi/powercap.c:477:18: note: in expansion of macro 'FIELD_PREP'
477 | FIELD_PREP(GENMASK(63, 32), power_thresh_high));
| ^~~~~~~~~~
vim +/__compiletime_assert_230 +352 include/linux/compiler_types.h
eb5c2d4b45e3d2d Will Deacon 2020-07-21 338
eb5c2d4b45e3d2d Will Deacon 2020-07-21 339 #define _compiletime_assert(condition, msg, prefix, suffix) \
eb5c2d4b45e3d2d Will Deacon 2020-07-21 340 __compiletime_assert(condition, msg, prefix, suffix)
eb5c2d4b45e3d2d Will Deacon 2020-07-21 341
eb5c2d4b45e3d2d Will Deacon 2020-07-21 342 /**
eb5c2d4b45e3d2d Will Deacon 2020-07-21 343 * compiletime_assert - break build and emit msg if condition is false
eb5c2d4b45e3d2d Will Deacon 2020-07-21 344 * @condition: a compile-time constant condition to check
eb5c2d4b45e3d2d Will Deacon 2020-07-21 345 * @msg: a message to emit if condition is false
eb5c2d4b45e3d2d Will Deacon 2020-07-21 346 *
eb5c2d4b45e3d2d Will Deacon 2020-07-21 347 * In tradition of POSIX assert, this macro will break the build if the
eb5c2d4b45e3d2d Will Deacon 2020-07-21 348 * supplied condition is *false*, emitting the supplied error message if the
eb5c2d4b45e3d2d Will Deacon 2020-07-21 349 * compiler has support to do so.
eb5c2d4b45e3d2d Will Deacon 2020-07-21 350 */
eb5c2d4b45e3d2d Will Deacon 2020-07-21 351 #define compiletime_assert(condition, msg) \
eb5c2d4b45e3d2d Will Deacon 2020-07-21 @352 _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
eb5c2d4b45e3d2d 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>
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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