Hi Kees, FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 2d743660786ec51f5c1fefd5782bbdee7b227db0 commit: 9b80e4c4ddaca3501177ed41e49d0928ba2122a8 overflow: Add __must_check attribute to check_*() helpers date: 6 months ago config: powerpc-randconfig-r005-20210407 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project c060945b23a1c54d4b2a053ff4b093a2277b303d) 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 # install powerpc cross compiling tool for clang build # apt-get install binutils-powerpc-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9b80e4c4ddaca3501177ed41e49d0928ba2122a8 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 9b80e4c4ddaca3501177ed41e49d0928ba2122a8 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> All warnings (new ones prefixed by >>): lib/test_overflow.c:92:1: warning: unused variable 'u64_tests' [-Wunused-const-variable] DEFINE_TEST_ARRAY(u64) = { ^ lib/test_overflow.c:22:4: note: expanded from macro 'DEFINE_TEST_ARRAY' } t ## _tests[] __initconst ^ <scratch space>:96:1: note: expanded from here u64_tests ^ lib/test_overflow.c:189:1: warning: unused variable 's64_tests' [-Wunused-const-variable] DEFINE_TEST_ARRAY(s64) = { ^ lib/test_overflow.c:22:4: note: expanded from macro 'DEFINE_TEST_ARRAY' } t ## _tests[] __initconst ^ <scratch space>:108:1: note: expanded from here s64_tests ^ >> lib/test_overflow.c:291:19: warning: stack frame size of 1984 bytes in >> function 'test_overflow_shift' [-Wframe-larger-than=] static int __init test_overflow_shift(void) ^ 3 warnings generated. Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for HOTPLUG_CPU Depends on SMP && (PPC_PSERIES || PPC_PMAC || PPC_POWERNV || FSL_SOC_BOOKE Selected by - PM_SLEEP_SMP && SMP && (ARCH_SUSPEND_POSSIBLE || ARCH_HIBERNATION_POSSIBLE && PM_SLEEP vim +/test_overflow_shift +291 lib/test_overflow.c 8fee81aa459848 Kees Cook 2018-05-09 290 d36b6ad27c7b95 Kees Cook 2018-08-01 @291 static int __init test_overflow_shift(void) d36b6ad27c7b95 Kees Cook 2018-08-01 292 { d36b6ad27c7b95 Kees Cook 2018-08-01 293 int err = 0; d36b6ad27c7b95 Kees Cook 2018-08-01 294 :::::: The code at line 291 was first introduced by commit :::::: d36b6ad27c7b95e3f6bfbf6ea33757c8e8accf01 test_overflow: Add shift overflow tests :::::: TO: Kees Cook <[email protected]> :::::: CC: Jason Gunthorpe <[email protected]> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
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