linux-kernel - [jolsa-perf:kprobe_multi_kmod 2/9] include/linux/kallsyms.h:166:19: error: redefinition of 'kallsyms_on_each

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Date:   Wed, 5 Oct 2022 04:33:03 +0800
From:   kernel test robot <lkp@...el.com>
To:     Jiri Olsa <jolsa@...nel.org>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [jolsa-perf:kprobe_multi_kmod 2/9] include/linux/kallsyms.h:166:19:
 error: redefinition of 'kallsyms_on_each_symbol'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git kprobe_multi_kmod
head:   13e547c472fd67b9ac56d181c40ac326b934b4da
commit: c421bef8d48a200efea6d7e9fe54ee37b808497f [2/9] kallsyms: Make module_kallsyms_on_each_symbol generally available
config: openrisc-randconfig-r012-20221003
compiler: or1k-linux-gcc (GCC) 12.1.0
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/jolsa/perf.git/commit/?id=c421bef8d48a200efea6d7e9fe54ee37b808497f
        git remote add jolsa-perf https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git
        git fetch --no-tags jolsa-perf kprobe_multi_kmod
        git checkout c421bef8d48a200efea6d7e9fe54ee37b808497f
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=openrisc SHELL=/bin/bash drivers/hid/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   In file included from include/linux/ftrace.h:13,
                    from include/linux/kprobes.h:28,
                    from include/linux/kgdb.h:19,
                    from include/linux/fb.h:6,
                    from drivers/hid/hid-picolcd_core.c:15:
>> include/linux/kallsyms.h:166:19: error: redefinition of 'kallsyms_on_each_symbol'
     166 | static inline int kallsyms_on_each_symbol(int (*fn)(void *, const char *, struct module *,
         |                   ^~~~~~~~~~~~~~~~~~~~~~~
   In file included from include/linux/device/driver.h:21,
                    from include/linux/device.h:32,
                    from include/linux/input.h:19,
                    from include/linux/hid.h:24,
                    from drivers/hid/hid-picolcd_core.c:10:
   include/linux/module.h:887:19: note: previous definition of 'kallsyms_on_each_symbol' with type 'int(int (*)(void *, const char *, struct module *, long unsigned int), void *)'
     887 | static inline int kallsyms_on_each_symbol(int (*fn)(void *, const char *,
         |                   ^~~~~~~~~~~~~~~~~~~~~~~


vim +/kallsyms_on_each_symbol +166 include/linux/kallsyms.h

e4a8ca3baa5557 Arnd Bergmann  2017-11-13  165  
d721def7392a73 Jiri Olsa      2022-05-10 @166  static inline int kallsyms_on_each_symbol(int (*fn)(void *, const char *, struct module *,
d721def7392a73 Jiri Olsa      2022-05-10  167  					  unsigned long), void *data)
d721def7392a73 Jiri Olsa      2022-05-10  168  {
d721def7392a73 Jiri Olsa      2022-05-10  169  	return -EOPNOTSUPP;
d721def7392a73 Jiri Olsa      2022-05-10  170  }
^1da177e4c3f41 Linus Torvalds 2005-04-16  171  #endif /*CONFIG_KALLSYMS*/
^1da177e4c3f41 Linus Torvalds 2005-04-16  172  

:::::: The code at line 166 was first introduced by commit
:::::: d721def7392a7348ffb9f3583b264239cbd3702c kallsyms: Make kallsyms_on_each_symbol generally available

:::::: TO: Jiri Olsa <jolsa@...nel.org>
:::::: CC: Alexei Starovoitov <ast@...nel.org>

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

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