linux-kernel - Re: [PATCH 4/5] ftrace: Convert "filter_hash" and "inc" to bool in ftrace_hash_rec_update

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Date: Wed, 5 Jun 2024 13:15:04 +0800
From: kernel test robot <lkp@...el.com>
To: Steven Rostedt <rostedt@...dmis.org>, linux-kernel@...r.kernel.org,
	linux-trace-kernel@...r.kernel.org
Cc: oe-kbuild-all@...ts.linux.dev, Masami Hiramatsu <mhiramat@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Memory Management List <linux-mm@...ck.org>
Subject: Re: [PATCH 4/5] ftrace: Convert "filter_hash" and "inc" to bool in
 ftrace_hash_rec_update_modify()

Hi Steven,

kernel test robot noticed the following build errors:

[auto build test ERROR on akpm-mm/mm-everything]
[also build test ERROR on linus/master v6.10-rc2 next-20240604]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Steven-Rostedt/ftrace-Rename-dup_hash-and-comment-it/20240605-053138
base:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link:    https://lore.kernel.org/r/20240604212855.046127611%40goodmis.org
patch subject: [PATCH 4/5] ftrace: Convert "filter_hash" and "inc" to bool in ftrace_hash_rec_update_modify()
config: i386-buildonly-randconfig-004-20240605 (https://download.01.org/0day-ci/archive/20240605/202406051211.TA5OOyjM-lkp@intel.com/config)
compiler: gcc-13 (Ubuntu 13.2.0-4ubuntu3) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240605/202406051211.TA5OOyjM-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/202406051211.TA5OOyjM-lkp@intel.com/

All error/warnings (new ones prefixed by >>):

>> kernel/trace/ftrace.c:1961:13: error: conflicting types for 'ftrace_hash_rec_disable_modify'; have 'void(struct ftrace_ops *, bool)' {aka 'void(struct ftrace_ops *, _Bool)'}
    1961 | static void ftrace_hash_rec_disable_modify(struct ftrace_ops *ops,
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   kernel/trace/ftrace.c:1384:1: note: previous declaration of 'ftrace_hash_rec_disable_modify' with type 'void(struct ftrace_ops *, int)'
    1384 | ftrace_hash_rec_disable_modify(struct ftrace_ops *ops, int filter_hash);
         | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> kernel/trace/ftrace.c:1967:13: error: conflicting types for 'ftrace_hash_rec_enable_modify'; have 'void(struct ftrace_ops *, bool)' {aka 'void(struct ftrace_ops *, _Bool)'}
    1967 | static void ftrace_hash_rec_enable_modify(struct ftrace_ops *ops,
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   kernel/trace/ftrace.c:1386:1: note: previous declaration of 'ftrace_hash_rec_enable_modify' with type 'void(struct ftrace_ops *, int)'
    1386 | ftrace_hash_rec_enable_modify(struct ftrace_ops *ops, int filter_hash);
         | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> kernel/trace/ftrace.c:1384:1: warning: 'ftrace_hash_rec_disable_modify' used but never defined
    1384 | ftrace_hash_rec_disable_modify(struct ftrace_ops *ops, int filter_hash);
         | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> kernel/trace/ftrace.c:1386:1: warning: 'ftrace_hash_rec_enable_modify' used but never defined
    1386 | ftrace_hash_rec_enable_modify(struct ftrace_ops *ops, int filter_hash);
         | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> kernel/trace/ftrace.c:1967:13: warning: 'ftrace_hash_rec_enable_modify' defined but not used [-Wunused-function]
    1967 | static void ftrace_hash_rec_enable_modify(struct ftrace_ops *ops,
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> kernel/trace/ftrace.c:1961:13: warning: 'ftrace_hash_rec_disable_modify' defined but not used [-Wunused-function]
    1961 | static void ftrace_hash_rec_disable_modify(struct ftrace_ops *ops,
         |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +1961 kernel/trace/ftrace.c

84261912ebee41 Steven Rostedt (Red Hat  2014-08-18  1960) 
84261912ebee41 Steven Rostedt (Red Hat  2014-08-18 @1961) static void ftrace_hash_rec_disable_modify(struct ftrace_ops *ops,
5177364f840058 Steven Rostedt (Google   2024-06-04  1962) 					   bool filter_hash)
84261912ebee41 Steven Rostedt (Red Hat  2014-08-18  1963) {
5177364f840058 Steven Rostedt (Google   2024-06-04  1964) 	ftrace_hash_rec_update_modify(ops, filter_hash, false);
84261912ebee41 Steven Rostedt (Red Hat  2014-08-18  1965) }
84261912ebee41 Steven Rostedt (Red Hat  2014-08-18  1966) 
84261912ebee41 Steven Rostedt (Red Hat  2014-08-18 @1967) static void ftrace_hash_rec_enable_modify(struct ftrace_ops *ops,
5177364f840058 Steven Rostedt (Google   2024-06-04  1968) 					  bool filter_hash)
84261912ebee41 Steven Rostedt (Red Hat  2014-08-18  1969) {
5177364f840058 Steven Rostedt (Google   2024-06-04  1970) 	ftrace_hash_rec_update_modify(ops, filter_hash, true);
84261912ebee41 Steven Rostedt (Red Hat  2014-08-18  1971) }
84261912ebee41 Steven Rostedt (Red Hat  2014-08-18  1972) 

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki