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Subject[linux-stable-rc:queue/5.10 4931/9999] include/linux/compiler_types.h:315:38: error: call to '__compiletime_assert_227' declared with attribute error: BUILD_BUG_ON failed: sizeof(_i) > sizeof(long)
tree:   https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git queue/5.10
head: eb967e323f7fb073c51401070f7d2cb381a003f7
commit: 7af299b97734c7e7f465b42a2139ce4d77246975 [4931/9999] kvm: avoid speculation-based attacks from out-of-range memslot accesses
config: i386-allyesconfig (https://download.01.org/0day-ci/archive/20211230/202112301112.IeXjohsS-lkp@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
# https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/commit/?id=7af299b97734c7e7f465b42a2139ce4d77246975
git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
git fetch --no-tags linux-stable-rc queue/5.10
git checkout 7af299b97734c7e7f465b42a2139ce4d77246975
# save the config file to linux build tree
mkdir build_dir
make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash

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

Note: the linux-stable-rc/queue/5.10 HEAD eb967e323f7fb073c51401070f7d2cb381a003f7 builds fine.
It only hurts bisectability.

All errors (new ones prefixed by >>):

In file included from <command-line>:
In function '__gfn_to_hva_memslot',
inlined from 'host_pfn_mapping_level' at arch/x86/kvm/mmu/mmu.c:2767:8,
inlined from 'kvm_mmu_hugepage_adjust' at arch/x86/kvm/mmu/mmu.c:2808:10:
>> include/linux/compiler_types.h:315:38: error: call to '__compiletime_assert_227' declared with attribute error: BUILD_BUG_ON failed: sizeof(_i) > sizeof(long)
315 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^
include/linux/compiler_types.h:296:4: note: in definition of macro '__compiletime_assert'
296 | prefix ## suffix(); \
| ^~~~~~
include/linux/compiler_types.h:315:2: note: in expansion of macro '_compiletime_assert'
315 | _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:50:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
50 | BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
| ^~~~~~~~~~~~~~~~
include/linux/nospec.h:57:2: note: in expansion of macro 'BUILD_BUG_ON'
57 | BUILD_BUG_ON(sizeof(_i) > sizeof(long)); \
| ^~~~~~~~~~~~
include/linux/kvm_host.h:1113:25: note: in expansion of macro 'array_index_nospec'
1113 | unsigned long offset = array_index_nospec(gfn - slot->base_gfn,
| ^~~~~~~~~~~~~~~~~~


vim +/__compiletime_assert_227 +315 include/linux/compiler_types.h

eb5c2d4b45e3d2 Will Deacon 2020-07-21 301
eb5c2d4b45e3d2 Will Deacon 2020-07-21 302 #define _compiletime_assert(condition, msg, prefix, suffix) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21 303 __compiletime_assert(condition, msg, prefix, suffix)
eb5c2d4b45e3d2 Will Deacon 2020-07-21 304
eb5c2d4b45e3d2 Will Deacon 2020-07-21 305 /**
eb5c2d4b45e3d2 Will Deacon 2020-07-21 306 * compiletime_assert - break build and emit msg if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21 307 * @condition: a compile-time constant condition to check
eb5c2d4b45e3d2 Will Deacon 2020-07-21 308 * @msg: a message to emit if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21 309 *
eb5c2d4b45e3d2 Will Deacon 2020-07-21 310 * In tradition of POSIX assert, this macro will break the build if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21 311 * supplied condition is *false*, emitting the supplied error message if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21 312 * compiler has support to do so.
eb5c2d4b45e3d2 Will Deacon 2020-07-21 313 */
eb5c2d4b45e3d2 Will Deacon 2020-07-21 314 #define compiletime_assert(condition, msg) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21 @315 _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
eb5c2d4b45e3d2 Will Deacon 2020-07-21 316

:::::: The code at line 315 was first introduced by commit
:::::: eb5c2d4b45e3d2d5d052ea6b8f1463976b1020d5 compiler.h: Move compiletime_assert() macros into compiler_types.h

:::::: TO: Will Deacon <will@kernel.org>
:::::: CC: Will Deacon <will@kernel.org>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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