From: kernel test robot <lkp@intel.com>
To: Jiri Olsa <jolsa@kernel.org>
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev
Subject: [jolsa-perf:bpf/tracing_multi_5 4/10] include/linux/ftrace.h:569:5: warning: no previous prototype for function 'modify_ftrace_direct_hash'
Date: Fri, 20 Jun 2025 19:15:30 +0800 [thread overview]
Message-ID: <202506201922.EbUiAB8s-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git bpf/tracing_multi_5
head: b288c6b15d20122d59ddf3bce2fb86afe6ed56c3
commit: 2f2d7e228b3f129edb4cefbc6c20dff3ea5b8d87 [4/10] ftrace: Add modify_ftrace_direct_hash function
config: x86_64-allnoconfig (https://download.01.org/0day-ci/archive/20250620/202506201922.EbUiAB8s-lkp@intel.com/config)
compiler: clang version 20.1.2 (https://github.com/llvm/llvm-project 58df0ef89dd64126512e4ee27b4ac3fd8ddf6247)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250620/202506201922.EbUiAB8s-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202506201922.EbUiAB8s-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from mm/filemap.c:25:
In file included from include/linux/syscalls.h:94:
In file included from include/trace/syscall.h:7:
In file included from include/linux/trace_events.h:10:
In file included from include/linux/perf_event.h:43:
include/linux/ftrace.h:559:5: warning: no previous prototype for function 'register_ftrace_direct_hash' [-Wmissing-prototypes]
559 | int register_ftrace_direct_hash(struct ftrace_ops *ops, struct ftrace_hash *hash)
| ^
include/linux/ftrace.h:559:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
559 | int register_ftrace_direct_hash(struct ftrace_ops *ops, struct ftrace_hash *hash)
| ^
| static
include/linux/ftrace.h:564:5: warning: no previous prototype for function 'unregister_ftrace_direct_hash' [-Wmissing-prototypes]
564 | int unregister_ftrace_direct_hash(struct ftrace_ops *ops, struct ftrace_hash *hash)
| ^
include/linux/ftrace.h:564:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
564 | int unregister_ftrace_direct_hash(struct ftrace_ops *ops, struct ftrace_hash *hash)
| ^
| static
>> include/linux/ftrace.h:569:5: warning: no previous prototype for function 'modify_ftrace_direct_hash' [-Wmissing-prototypes]
569 | int modify_ftrace_direct_hash(struct ftrace_ops *ops, struct ftrace_hash *hash, bool do_direct_lock)
| ^
include/linux/ftrace.h:569:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
569 | int modify_ftrace_direct_hash(struct ftrace_ops *ops, struct ftrace_hash *hash, bool do_direct_lock)
| ^
| static
3 warnings generated.
--
In file included from mm/shmem.c:77:
In file included from include/linux/syscalls.h:94:
In file included from include/trace/syscall.h:7:
In file included from include/linux/trace_events.h:10:
In file included from include/linux/perf_event.h:43:
include/linux/ftrace.h:559:5: warning: no previous prototype for function 'register_ftrace_direct_hash' [-Wmissing-prototypes]
559 | int register_ftrace_direct_hash(struct ftrace_ops *ops, struct ftrace_hash *hash)
| ^
include/linux/ftrace.h:559:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
559 | int register_ftrace_direct_hash(struct ftrace_ops *ops, struct ftrace_hash *hash)
| ^
| static
include/linux/ftrace.h:564:5: warning: no previous prototype for function 'unregister_ftrace_direct_hash' [-Wmissing-prototypes]
564 | int unregister_ftrace_direct_hash(struct ftrace_ops *ops, struct ftrace_hash *hash)
| ^
include/linux/ftrace.h:564:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
564 | int unregister_ftrace_direct_hash(struct ftrace_ops *ops, struct ftrace_hash *hash)
| ^
| static
>> include/linux/ftrace.h:569:5: warning: no previous prototype for function 'modify_ftrace_direct_hash' [-Wmissing-prototypes]
569 | int modify_ftrace_direct_hash(struct ftrace_ops *ops, struct ftrace_hash *hash, bool do_direct_lock)
| ^
include/linux/ftrace.h:569:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
569 | int modify_ftrace_direct_hash(struct ftrace_ops *ops, struct ftrace_hash *hash, bool do_direct_lock)
| ^
| static
mm/shmem.c:1686:20: warning: unused function 'shmem_show_mpol' [-Wunused-function]
1686 | static inline void shmem_show_mpol(struct seq_file *seq, struct mempolicy *mpol)
| ^~~~~~~~~~~~~~~
4 warnings generated.
vim +/modify_ftrace_direct_hash +569 include/linux/ftrace.h
568
> 569 int modify_ftrace_direct_hash(struct ftrace_ops *ops, struct ftrace_hash *hash, bool do_direct_lock)
570 {
571 return -ENODEV;
572 }
573
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
reply other threads:[~2025-06-20 11:16 UTC|newest]
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