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SubjectRe: [PATCH] ftrace/sh: Add arch_ftrace_ops_list_func stub to have compressed image still link
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@intel.com>

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@lists.01.org
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