Hi Julian, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: d72cd4ad4174cfd2257c426ad51e4f53bcfde9c9 commit: 7d37cb2c912dc5c25ffac784a4f9b98c06c6bd08 lib: fix kconfig dependency on ARCH_WANT_FRAME_POINTERS date: 3 weeks ago config: csky-randconfig-s031-20210429 (attached as .config) compiler: csky-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.3-341-g8af24329-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7d37cb2c912dc5c25ffac784a4f9b98c06c6bd08 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 7d37cb2c912dc5c25ffac784a4f9b98c06c6bd08 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' W=1 ARCH=csky If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) >> arch/csky/kernel/probes/decode-insn.c:19:31: sparse: sparse: cast to restricted __le32 -- >> arch/csky/kernel/probes/kprobes.c:32:31: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned short [usertype] @@ got restricted __le16 [usertype] @@ arch/csky/kernel/probes/kprobes.c:32:31: sparse: expected unsigned short [usertype] arch/csky/kernel/probes/kprobes.c:32:31: sparse: got restricted __le16 [usertype] >> arch/csky/kernel/probes/kprobes.c:86:21: sparse: sparse: cast to restricted __le32 vim +19 arch/csky/kernel/probes/decode-insn.c 33e53ae1ce413a Guo Ren 2020-04-01 11 33e53ae1ce413a Guo Ren 2020-04-01 12 /* Return: 33e53ae1ce413a Guo Ren 2020-04-01 13 * INSN_REJECTED If instruction is one not allowed to kprobe, 33e53ae1ce413a Guo Ren 2020-04-01 14 * INSN_GOOD_NO_SLOT If instruction is supported but doesn't use its slot. 33e53ae1ce413a Guo Ren 2020-04-01 15 */ 33e53ae1ce413a Guo Ren 2020-04-01 16 enum probe_insn __kprobes 33e53ae1ce413a Guo Ren 2020-04-01 17 csky_probe_decode_insn(probe_opcode_t *addr, struct arch_probe_insn *api) 33e53ae1ce413a Guo Ren 2020-04-01 18 { 33e53ae1ce413a Guo Ren 2020-04-01 @19 probe_opcode_t insn = le32_to_cpu(*addr); :::::: The code at line 19 was first introduced by commit :::::: 33e53ae1ce413a081254e686d9b27cc1b3585e2f csky: Add kprobes supported :::::: TO: Guo Ren <guoren@xxxxxxxxxxxxxxxxx> :::::: CC: Guo Ren <guoren@xxxxxxxxxxxxxxxxx> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
Attachment:
.config.gz
Description: application/gzip
