Messages in this thread | | | Date | Fri, 27 Aug 2021 14:25:33 +0800 | From | kernel test robot <> | Subject | [jolsa-perf:bpf/batch 7/27] include/linux/ftrace.h:361:5: warning: no previous prototype for function 'modify_ftrace_direct_multi' |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git bpf/batch head: b81b17307e02f8e6d4abf87e7ec2d7e5aea1e0b5 commit: 81a7fb1d152a20b3bdb300bb584c69d620e3c811 [7/27] ftrace: Add multi direct modify interface config: riscv-buildonly-randconfig-r006-20210826 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 1076082a0d97bd5c16a25ee7cf3dbb6ee4b5a9fe) 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 riscv cross compiling tool for clang build # apt-get install binutils-riscv64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git/commit/?id=81a7fb1d152a20b3bdb300bb584c69d620e3c811 git remote add jolsa-perf https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git git fetch --no-tags jolsa-perf bpf/batch git checkout 81a7fb1d152a20b3bdb300bb584c69d620e3c811 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv
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 >>):
In file included from drivers/gpu/drm/exynos/exynos_drm_drv.c:16: In file included from include/drm/drm_atomic.h:31: In file included from include/drm/drm_crtc.h:31: In file included from include/linux/fb.h:5: In file included from include/linux/kgdb.h:19: In file included from include/linux/kprobes.h:29: include/linux/ftrace.h:353:41: warning: declaration of 'struct ftrace_ops' will not be visible outside of this function [-Wvisibility] int register_ftrace_direct_multi(struct ftrace_ops *ops, unsigned long addr) ^ include/linux/ftrace.h:353:5: warning: no previous prototype for function 'register_ftrace_direct_multi' [-Wmissing-prototypes] int register_ftrace_direct_multi(struct ftrace_ops *ops, unsigned long addr) ^ include/linux/ftrace.h:353:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int register_ftrace_direct_multi(struct ftrace_ops *ops, unsigned long addr) ^ static include/linux/ftrace.h:357:43: warning: declaration of 'struct ftrace_ops' will not be visible outside of this function [-Wvisibility] int unregister_ftrace_direct_multi(struct ftrace_ops *ops) ^ include/linux/ftrace.h:357:5: warning: no previous prototype for function 'unregister_ftrace_direct_multi' [-Wmissing-prototypes] int unregister_ftrace_direct_multi(struct ftrace_ops *ops) ^ include/linux/ftrace.h:357:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int unregister_ftrace_direct_multi(struct ftrace_ops *ops) ^ static include/linux/ftrace.h:361:39: warning: declaration of 'struct ftrace_ops' will not be visible outside of this function [-Wvisibility] int modify_ftrace_direct_multi(struct ftrace_ops *ops, unsigned long addr) ^ >> include/linux/ftrace.h:361:5: warning: no previous prototype for function 'modify_ftrace_direct_multi' [-Wmissing-prototypes] int modify_ftrace_direct_multi(struct ftrace_ops *ops, unsigned long addr) ^ include/linux/ftrace.h:361:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int modify_ftrace_direct_multi(struct ftrace_ops *ops, unsigned long addr) ^ static 6 warnings generated.
vim +/modify_ftrace_direct_multi +361 include/linux/ftrace.h
322 323 #else 324 # define ftrace_direct_func_count 0 325 static inline int register_ftrace_direct(unsigned long ip, unsigned long addr) 326 { 327 return -ENOTSUPP; 328 } 329 static inline int unregister_ftrace_direct(unsigned long ip, unsigned long addr) 330 { 331 return -ENOTSUPP; 332 } 333 static inline int modify_ftrace_direct(unsigned long ip, 334 unsigned long old_addr, unsigned long new_addr) 335 { 336 return -ENOTSUPP; 337 } 338 static inline struct ftrace_direct_func *ftrace_find_direct_func(unsigned long addr) 339 { 340 return NULL; 341 } 342 static inline int ftrace_modify_direct_caller(struct ftrace_func_entry *entry, 343 struct dyn_ftrace *rec, 344 unsigned long old_addr, 345 unsigned long new_addr) 346 { 347 return -ENODEV; 348 } 349 static inline unsigned long ftrace_find_rec_direct(unsigned long ip) 350 { 351 return 0; 352 } 353 int register_ftrace_direct_multi(struct ftrace_ops *ops, unsigned long addr) 354 { 355 return -ENODEV; 356 } 357 int unregister_ftrace_direct_multi(struct ftrace_ops *ops) 358 { 359 return -ENODEV; 360 } > 361 int modify_ftrace_direct_multi(struct ftrace_ops *ops, unsigned long addr) 362 { 363 return -ENODEV; 364 } 365 #endif /* CONFIG_DYNAMIC_FTRACE_WITH_DIRECT_CALLS */ 366
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