Messages in this thread | | | Date | Tue, 25 Oct 2022 21:21:58 +0800 | From | kernel test robot <> | Subject | [mark:arm64/ftrace/per-callsite-ops 1/11] arch/x86/include/asm/ftrace.h:72:7: error: incomplete definition of type 'struct ftrace_regs' |
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Hi Mark,
FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git arm64/ftrace/per-callsite-ops head: f73350f69ff3e7a2061b0021644bc9846664a3d3 commit: 6262590b79bc8a27439257aebbfc3d1ce45791dd [1/11] ftrace: pass fregs to arch_ftrace_set_direct_caller() config: i386-randconfig-a005-20221024 (attached as .config) compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1) 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://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git/commit/?id=6262590b79bc8a27439257aebbfc3d1ce45791dd git remote add mark https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git git fetch --no-tags mark arm64/ftrace/per-callsite-ops git checkout 6262590b79bc8a27439257aebbfc3d1ce45791dd # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 prepare
If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
In file included from arch/x86/kernel/asm-offsets.c:22: In file included from arch/x86/kernel/../kvm/vmx/vmx.h:5: In file included from include/linux/kvm_host.h:32: In file included from include/linux/ftrace.h:23: arch/x86/include/asm/ftrace.h:69:57: warning: declaration of 'struct ftrace_regs' will not be visible outside of this function [-Wvisibility] static inline void arch_ftrace_set_direct_caller(struct ftrace_regs *fregs, unsigned long addr) ^ >> arch/x86/include/asm/ftrace.h:72:7: error: incomplete definition of type 'struct ftrace_regs' fregs->regs.orig_ax = addr; ~~~~~^ arch/x86/include/asm/ftrace.h:69:57: note: forward declaration of 'struct ftrace_regs' static inline void arch_ftrace_set_direct_caller(struct ftrace_regs *fregs, unsigned long addr) ^ 1 warning and 1 error generated. make[2]: *** [scripts/Makefile.build:118: arch/x86/kernel/asm-offsets.s] Error 1 make[2]: Target 'prepare' not remade because of errors. make[1]: *** [Makefile:1270: prepare0] Error 2 make[1]: Target 'prepare' not remade because of errors. make: *** [Makefile:231: __sub-make] Error 2 make: Target 'prepare' not remade because of errors.
vim +72 arch/x86/include/asm/ftrace.h
61 62 /* 63 * When a ftrace registered caller is tracing a function that is 64 * also set by a register_ftrace_direct() call, it needs to be 65 * differentiated in the ftrace_caller trampoline. To do this, we 66 * place the direct caller in the ORIG_AX part of pt_regs. This 67 * tells the ftrace_caller that there's a direct caller. 68 */ 69 static inline void arch_ftrace_set_direct_caller(struct ftrace_regs *fregs, unsigned long addr) 70 { 71 /* Emulate a call */ > 72 fregs->regs.orig_ax = addr; 73 } 74
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