Hi Woradorn, kernel test robot noticed the following build warnings:
[auto build test WARNING on v7.2-rc7] [also build test WARNING on linus/master] [cannot apply to linux-review/Woradorn-Laodhanadhaworn/tracing-Use-seq_buf-for-string-concatenation/20260813-224524 trace/for-next next-20260814] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Woradorn-Laodhanadhaworn/tracing-Use-seq_buf-for-string-concatenation/20260815-195403 base: v7.2-rc7 patch link: https://lore.kernel.org/r/20260622094623.18469-1-woradorn.laon%40gmail.com patch subject: [PATCH v2] tracing: Use seq_buf for string concatenation config: hexagon-randconfig-r123-20260816 (https://download.01.org/0day-ci/archive/20260817/[email protected]/config) compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff) sparse: v0.6.5-rc1 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260817/[email protected]/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <[email protected]> | Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/ All warnings (new ones prefixed by >>, old ones prefixed by <<): >> WARNING: modpost: vmlinux: section mismatch in reference: seq_buf_str+0x4 >> (section: .text) -> bootup_event_buf (section: .init.data) WARNING: modpost: vmlinux: section mismatch in reference: seq_buf_str+0x8 (section: .text) -> bootup_event_buf (section: .init.data) >> WARNING: modpost: vmlinux: section mismatch in reference: seq_buf_str+0xe0 >> (section: .text) -> __TRACE_SYSTEM_ERROR_DETECTOR_KFENCE (section: >> .init.data) WARNING: modpost: vmlinux: section mismatch in reference: seq_buf_str+0xe4 (section: .text) -> __TRACE_SYSTEM_ERROR_DETECTOR_KFENCE (section: .init.data) WARNING: modpost: vmlinux: section mismatch in reference: seq_buf_str+0xfc (section: .text) -> bootup_event_buf (section: .init.data) WARNING: modpost: vmlinux: section mismatch in reference: seq_buf_str+0x100 (section: .text) -> bootup_event_buf (section: .init.data) WARNING: modpost: vmlinux: section mismatch in reference: seq_buf_str+0x1cc (section: .text) -> bootup_event_buf (section: .init.data) WARNING: modpost: vmlinux: section mismatch in reference: seq_buf_str+0x1d0 (section: .text) -> bootup_event_buf (section: .init.data) WARNING: modpost: vmlinux: section mismatch in reference: seq_buf_str+0x1f4 (section: .text) -> bootup_event_buf (section: .init.data) WARNING: modpost: vmlinux: section mismatch in reference: seq_buf_str+0x1f8 (section: .text) -> bootup_event_buf (section: .init.data) WARNING: modpost: vmlinux: section mismatch in reference: seq_buf_str+0x228 (section: .text) -> bootup_event_buf (section: .init.data) WARNING: modpost: vmlinux: section mismatch in reference: seq_buf_str+0x22c (section: .text) -> bootup_event_buf (section: .init.data) -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
