tree:
https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git
pending-5.4
head: b98b3164c31115159bca6e3c71c0c98426868ca9
commit: cc784e813e05f1a5773275d71469dab8ea13c08f [30/42] net: igmp: fix data-race in
igmp_ifc_timer_expire()
config: riscv-allmodconfig (attached as .config)
compiler: riscv64-linux-gcc (GCC) 11.2.0
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/sashal/linux-stable.git/c...
git remote add sashal-linux-stable
https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git
git fetch --no-tags sashal-linux-stable pending-5.4
git checkout cc784e813e05f1a5773275d71469dab8ea13c08f
# save the attached .config to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir
ARCH=riscv SHELL=/bin/bash net/ipv4/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
Note: the sashal-linux-stable/pending-5.4 HEAD b98b3164c31115159bca6e3c71c0c98426868ca9
builds fine.
It only hurts bisectibility.
All errors (new ones prefixed by >>):
In file included from include/linux/kernel.h:11,
from include/linux/list.h:9,
from include/linux/module.h:9,
from net/ipv4/igmp.c:69:
net/ipv4/igmp.c: In function 'igmp_ifc_timer_expire':
> include/linux/compiler.h:417:45: error: call to
'__compiletime_assert_259' declared with attribute error: BUILD_BUG failed
417 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^
include/linux/compiler.h:398:25: note: in definition of macro
'__compiletime_assert'
398 | prefix ## suffix(); \
| ^~~~~~
include/linux/compiler.h:417:9: note: in expansion of macro
'_compiletime_assert'
417 | _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:59:21: note: in expansion of macro
'BUILD_BUG_ON_MSG'
59 | #define BUILD_BUG() BUILD_BUG_ON_MSG(1, "BUILD_BUG failed")
| ^~~~~~~~~~~~~~~~
arch/riscv/include/asm/cmpxchg.h:335:17: note: in expansion of macro
'BUILD_BUG'
335 | BUILD_BUG(); \
| ^~~~~~~~~
arch/riscv/include/asm/cmpxchg.h:344:30: note: in expansion of macro
'__cmpxchg'
344 | (__typeof__(*(ptr))) __cmpxchg((ptr), \
| ^~~~~~~~~
net/ipv4/igmp.c:815:21: note: in expansion of macro 'cmpxchg'
815 | if (cmpxchg(&in_dev->mr_ifc_count,
| ^~~~~~~
vim +/__compiletime_assert_259 +417 include/linux/compiler.h
9a8ab1c39970a4 Daniel Santos 2013-02-21 403
9a8ab1c39970a4 Daniel Santos 2013-02-21 404 #define _compiletime_assert(condition, msg,
prefix, suffix) \
9a8ab1c39970a4 Daniel Santos 2013-02-21 405 __compiletime_assert(condition, msg,
prefix, suffix)
9a8ab1c39970a4 Daniel Santos 2013-02-21 406
9a8ab1c39970a4 Daniel Santos 2013-02-21 407 /**
9a8ab1c39970a4 Daniel Santos 2013-02-21 408 * compiletime_assert - break build and emit
msg if condition is false
9a8ab1c39970a4 Daniel Santos 2013-02-21 409 * @condition: a compile-time constant
condition to check
9a8ab1c39970a4 Daniel Santos 2013-02-21 410 * @msg: a message to emit if
condition is false
9a8ab1c39970a4 Daniel Santos 2013-02-21 411 *
9a8ab1c39970a4 Daniel Santos 2013-02-21 412 * In tradition of POSIX assert, this macro
will break the build if the
9a8ab1c39970a4 Daniel Santos 2013-02-21 413 * supplied condition is *false*, emitting
the supplied error message if the
9a8ab1c39970a4 Daniel Santos 2013-02-21 414 * compiler has support to do so.
9a8ab1c39970a4 Daniel Santos 2013-02-21 415 */
9a8ab1c39970a4 Daniel Santos 2013-02-21 416 #define compiletime_assert(condition, msg)
\
3910babeac1ab0 Vegard Nossum 2020-04-06 @417 _compiletime_assert(condition, msg,
__compiletime_assert_, __COUNTER__)
9a8ab1c39970a4 Daniel Santos 2013-02-21 418
:::::: The code at line 417 was first introduced by commit
:::::: 3910babeac1ab031f4e178042cbd1af9a9a0ec51 compiler.h: fix error in BUILD_BUG_ON()
reporting
:::::: TO: Vegard Nossum <vegard.nossum(a)oracle.com>
:::::: CC: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org