linux-kernel - [saeed:net-next 154/185] net/smc/smc_sysctl.h:23:16: warning: no previous prototype for 'smc_sysctl_net

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Date:   Tue, 8 Mar 2022 10:43:56 +0800
From:   kernel test robot <lkp@...el.com>
To:     Dust Li <dust.li@...ux.alibaba.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [saeed:net-next 154/185] net/smc/smc_sysctl.h:23:16: warning: no
 previous prototype for 'smc_sysctl_net_init'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux.git net-next
head:   03200f4a126b1a08c0f16dea7f67e6bff9c83c90
commit: 7de8eb0d9039f16e1122d7aa524a1502a160c4ff [154/185] net/smc: fix compile warning for smc_sysctl
config: arc-randconfig-r016-20220308 (https://download.01.org/0day-ci/archive/20220308/202203081012.KgONXWsS-lkp@intel.com/config)
compiler: arceb-elf-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/saeed/linux.git/commit/?id=7de8eb0d9039f16e1122d7aa524a1502a160c4ff
        git remote add saeed https://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux.git
        git fetch --no-tags saeed net-next
        git checkout 7de8eb0d9039f16e1122d7aa524a1502a160c4ff
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arc SHELL=/bin/bash net/

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

All warnings (new ones prefixed by >>):

   In file included from net/smc/af_smc.c:54:
>> net/smc/smc_sysctl.h:23:16: warning: no previous prototype for 'smc_sysctl_net_init' [-Wmissing-prototypes]
      23 | int __net_init smc_sysctl_net_init(struct net *net)
         |                ^~~~~~~~~~~~~~~~~~~
>> net/smc/smc_sysctl.h:29:17: warning: no previous prototype for 'smc_sysctl_net_exit' [-Wmissing-prototypes]
      29 | void __net_exit smc_sysctl_net_exit(struct net *net) { }
         |                 ^~~~~~~~~~~~~~~~~~~


vim +/smc_sysctl_net_init +23 net/smc/smc_sysctl.h

    22	
  > 23	int __net_init smc_sysctl_net_init(struct net *net)
    24	{
    25		net->smc.sysctl_autocorking_size = SMC_AUTOCORKING_DEFAULT_SIZE;
    26		return 0;
    27	}
    28	
  > 29	void __net_exit smc_sysctl_net_exit(struct net *net) { }
    30	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org