linux-kernel - Re: [mcgrof-next:20211123-sysctl-cleanups 41/41] kernel/kprobes.c:52:1: error: function declaration isn't a prototype

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Date:   Wed, 24 Nov 2021 05:27:21 -0800
From:   Luis Chamberlain <mcgrof@...nel.org>
To:     kernel test robot <lkp@...el.com>
Cc:     Xiaoming Ni <nixiaoming@...wei.com>, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org
Subject: Re: [mcgrof-next:20211123-sysctl-cleanups 41/41]
 kernel/kprobes.c:52:1: error: function declaration isn't a prototype

On Wed, Nov 24, 2021 at 04:01:56PM +0800, kernel test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux-next.git 20211123-sysctl-cleanups
> head:   c18add41d859b4feec081eab6cfd624a5642973d
> commit: c18add41d859b4feec081eab6cfd624a5642973d [41/41] kprobe: move sysctl_kprobes_optimization to kprobes.c
> config: sparc-randconfig-r002-20211123 (https://download.01.org/0day-ci/archive/20211124/202111241540.e3ukBGer-lkp@intel.com/config)
> compiler: sparc64-linux-gcc (GCC) 11.2.0
> 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/mcgrof/linux-next.git/commit/?id=c18add41d859b4feec081eab6cfd624a5642973d
>         git remote add mcgrof-next https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux-next.git
>         git fetch --no-tags mcgrof-next 20211123-sysctl-cleanups
>         git checkout c18add41d859b4feec081eab6cfd624a5642973d
>         # save the config file to linux build tree
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=sparc 
> 
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@...el.com>
> 
> All error/warnings (new ones prefixed by >>):
> 
>    In file included from include/linux/key.h:17,
>                     from include/linux/cred.h:13,
>                     from include/linux/sched/signal.h:10,
>                     from include/linux/rcuwait.h:6,
>                     from include/linux/percpu-rwsem.h:7,
>                     from include/linux/fs.h:33,
>                     from include/linux/huge_mm.h:8,
>                     from include/linux/mm.h:717,
>                     from include/linux/kallsyms.h:13,
>                     from include/linux/ftrace.h:12,
>                     from include/linux/kprobes.h:28,
>                     from kernel/kprobes.c:23:
>    include/linux/sysctl.h: In function 'register_sysctl_mount_point':
>    include/linux/sysctl.h:270:1: error: expected ';' before '}' token
>      270 | }
>          | ^
>    kernel/kprobes.c: At top level:
>    kernel/kprobes.c:52:1: error: return type defaults to 'int' [-Werror=return-type]
>       52 | kprobe_sysctls_init() do { } while (0)

Fixed. Thanks.

  Luis