linux-kernel - arch/sh/boot/compressed/misc.c:118:6: warning: no previous prototype for 'arch_ftrace_ops_list

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Date:   Tue, 31 Oct 2023 06:15:04 +0800
From:   kernel test robot <lkp@...el.com>
To:     "Steven Rostedt (VMware)" <rostedt@...dmis.org>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: arch/sh/boot/compressed/misc.c:118:6: warning: no previous prototype
 for 'arch_ftrace_ops_list_func'

Hi Steven,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   14ab6d425e80674b6a0145f05719b11e82e64824
commit: 17b251a290ba84a0c2c5c82df9596cb2e7207ca6 ftrace/sh: Add arch_ftrace_ops_list_func stub to have compressed image still link
date:   2 years ago
config: sh-allnoconfig (https://download.01.org/0day-ci/archive/20231031/202310310611.5RteDpO7-lkp@intel.com/config)
compiler: sh4-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231031/202310310611.5RteDpO7-lkp@intel.com/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 <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202310310611.5RteDpO7-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
https://github.com/intel/lkp-tests/wiki