tree: https://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild.git modpost-v5 head: 952d644bb57db01d034e1faf94519473fbb1a0a1 commit: 952d644bb57db01d034e1faf94519473fbb1a0a1 [23/23] kbuild: implement CONFIG_TRIM_UNUSED_KSYMS without recursion config: x86_64-randconfig-s053-20230528 (https://download.01.org/0day-ci/archive/20230528/202305280830.Rj5ltc9M-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-12) 11.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.4-39-gce1a6720-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild.git/commit/?id=952d644bb57db01d034e1faf94519473fbb1a0a1 git remote add masahiroy-kbuild https://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild.git git fetch --no-tags masahiroy-kbuild modpost-v5 git checkout 952d644bb57db01d034e1faf94519473fbb1a0a1 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=x86_64 olddefconfig make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=x86_64 SHELL=/bin/bash arch/x86/kernel/ kernel/trace/ lib/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202305280830.Rj5ltc9M-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) >> arch/x86/kernel/callthunks.c:45:1: sparse: sparse: cast removes address space '__percpu' of expression arch/x86/kernel/callthunks.c:46:1: sparse: sparse: cast removes address space '__percpu' of expression vim +/__percpu +45 arch/x86/kernel/callthunks.c e81dc127ef6988 Thomas Gleixner 2022-09-15 39 f5c1bb2afe9339 Thomas Gleixner 2022-09-15 40 #ifdef CONFIG_CALL_THUNKS_DEBUG f5c1bb2afe9339 Thomas Gleixner 2022-09-15 41 DEFINE_PER_CPU(u64, __x86_call_count); f5c1bb2afe9339 Thomas Gleixner 2022-09-15 42 DEFINE_PER_CPU(u64, __x86_ret_count); f5c1bb2afe9339 Thomas Gleixner 2022-09-15 43 DEFINE_PER_CPU(u64, __x86_stuffs_count); f5c1bb2afe9339 Thomas Gleixner 2022-09-15 44 DEFINE_PER_CPU(u64, __x86_ctxsw_count); f5c1bb2afe9339 Thomas Gleixner 2022-09-15 @45 EXPORT_SYMBOL_GPL(__x86_ctxsw_count); f5c1bb2afe9339 Thomas Gleixner 2022-09-15 46 EXPORT_SYMBOL_GPL(__x86_call_count); f5c1bb2afe9339 Thomas Gleixner 2022-09-15 47 #endif f5c1bb2afe9339 Thomas Gleixner 2022-09-15 48 :::::: The code at line 45 was first introduced by commit :::::: f5c1bb2afe93396d41c5cbdcb909b08a75b8dde4 x86/calldepth: Add ret/call counting for debug :::::: TO: Thomas Gleixner <tglx@xxxxxxxxxxxxx> :::::: CC: Peter Zijlstra <peterz@xxxxxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
