Hi Steven, I love your patch! Perhaps something to improve: [auto build test WARNING on linux/master] [also build test WARNING on hnaz-mm/master linus/master v5.15-rc7 next-20211026] [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] url: https://github.com/0day-ci/linux/commits/Steven-Rostedt/ftrace-sh-Add-arch_ftrace_ops_list_func-stub-to-have-compressed-image-still-link/20211022-101651 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 2f111a6fd5b5297b4e92f53798ca086f7c7d33a4 config: sh-se7705_defconfig (attached as .config) compiler: sh4-linux-gcc (GCC) 11.2.0 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 # https://github.com/0day-ci/linux/commit/67866b4041f96ae1a8bc1b0b0d077c13c59a0e24 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Steven-Rostedt/ftrace-sh-Add-arch_ftrace_ops_list_func-stub-to-have-compressed-image-still-link/20211022-101651 git checkout 67866b4041f96ae1a8bc1b0b0d077c13c59a0e24 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=sh If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): arch/sh/boot/compressed/misc.c:109:6: warning: no previous prototype for '__stack_chk_fail' [-Wmissing-prototypes] 109 | void __stack_chk_fail(void) | ^~~~~~~~~~~~~~~~ arch/sh/boot/compressed/misc.c:115:6: warning: no previous prototype for 'ftrace_stub' [-Wmissing-prototypes] 115 | void ftrace_stub(void) | ^~~~~~~~~~~ >> arch/sh/boot/compressed/misc.c:118:6: warning: no previous prototype for 'arch_ftrace_ops_list_func' [-Wmissing-prototypes] 118 | void arch_ftrace_ops_list_func(void) | ^~~~~~~~~~~~~~~~~~~~~~~~~ arch/sh/boot/compressed/misc.c:128:6: warning: no previous prototype for 'decompress_kernel' [-Wmissing-prototypes] 128 | void decompress_kernel(void) | ^~~~~~~~~~~~~~~~~ vim +/arch_ftrace_ops_list_func +118 arch/sh/boot/compressed/misc.c 113 114 /* Needed because vmlinux.lds.h references this */ 115 void ftrace_stub(void) 116 { 117 } > 118 void arch_ftrace_ops_list_func(void) 119 { 120 } 121 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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