Messages in this thread | | | Date | Sat, 19 Mar 2022 10:17:30 +0800 | From | kernel test robot <> | Subject | [ammarfaizi2-block:rostedt/linux-trace/ftrace/core 53/57] arch/arm64/kernel/probes/rethook.c:11:22: warning: no previous prototype for function 'arch_rethook_trampoline_callback' |
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tree: https://github.com/ammarfaizi2/linux-block rostedt/linux-trace/ftrace/core head: 03cd03b5c3f9836e625a99fa603b4683dc1ebb47 commit: 6b142311f91040c847702773bdf441afdc658984 [53/57] fprobe: Add exit_handler support config: arm64-allyesconfig (https://download.01.org/0day-ci/archive/20220319/202203191007.YShhz8AJ-lkp@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project a6e70e4056dff962ec634c5bd4f2f4105a0bef71) 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 # install arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # https://github.com/ammarfaizi2/linux-block/commit/6b142311f91040c847702773bdf441afdc658984 git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block git fetch --no-tags ammarfaizi2-block rostedt/linux-trace/ftrace/core git checkout 6b142311f91040c847702773bdf441afdc658984 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash arch/arm64/kernel/probes/
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/arm64/kernel/probes/rethook.c:11:22: warning: no previous prototype for function 'arch_rethook_trampoline_callback' [-Wmissing-prototypes] unsigned long __used arch_rethook_trampoline_callback(struct pt_regs *regs) ^ arch/arm64/kernel/probes/rethook.c:11:1: note: declare 'static' if the function is not intended to be used outside of this translation unit unsigned long __used arch_rethook_trampoline_callback(struct pt_regs *regs) ^ static 1 warning generated.
vim +/arch_rethook_trampoline_callback +11 arch/arm64/kernel/probes/rethook.c
371ce29069762d9 Masami Hiramatsu 2022-03-15 9 371ce29069762d9 Masami Hiramatsu 2022-03-15 10 /* This is called from arch_rethook_trampoline() */ 371ce29069762d9 Masami Hiramatsu 2022-03-15 @11 unsigned long __used arch_rethook_trampoline_callback(struct pt_regs *regs) 371ce29069762d9 Masami Hiramatsu 2022-03-15 12 { 371ce29069762d9 Masami Hiramatsu 2022-03-15 13 return rethook_trampoline_handler(regs, regs->regs[29]); 371ce29069762d9 Masami Hiramatsu 2022-03-15 14 } 371ce29069762d9 Masami Hiramatsu 2022-03-15 15 NOKPROBE_SYMBOL(arch_rethook_trampoline_callback); 371ce29069762d9 Masami Hiramatsu 2022-03-15 16
:::::: The code at line 11 was first introduced by commit :::::: 371ce29069762d992f8dcaa9ecabb6ff78a73f22 arm64: rethook: Add arm64 rethook implementation
:::::: TO: Masami Hiramatsu <mhiramat@kernel.org> :::::: CC: Steven Rostedt (Google) <rostedt@goodmis.org>
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