netdev - Re: [PATCH v1 net-next 3/6] af_unix: Define a per-netns hash table.

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Date:   Sat, 18 Jun 2022 02:17:44 +0800
From:   kernel test robot <lkp@...el.com>
To:     Kuniyuki Iwashima <kuniyu@...zon.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        netdev@...r.kernel.org, Amit Shah <aams@...zon.com>,
        Kuniyuki Iwashima <kuniyu@...zon.com>
Subject: Re: [PATCH v1 net-next 3/6] af_unix: Define a per-netns hash table.

Hi Kuniyuki,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on net-next/master]

url:    https://github.com/intel-lab-lkp/linux/commits/Kuniyuki-Iwashima/af_unix-Introduce-per-netns-socket-hash-table/20220617-075046
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git 5dcb50c009c9f8ec1cfca6a81a05c0060a5bbf68
config: hexagon-randconfig-r045-20220617 (https://download.01.org/0day-ci/archive/20220618/202206180244.SIWZxbAo-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project d764aa7fc6b9cc3fbe960019018f5f9e941eb0a6)
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://github.com/intel-lab-lkp/linux/commit/d0da436e1c42550dbd332f48fd11992d5f4af487
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Kuniyuki-Iwashima/af_unix-Introduce-per-netns-socket-hash-table/20220617-075046
        git checkout d0da436e1c42550dbd332f48fd11992d5f4af487
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash net/unix/

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

All warnings (new ones prefixed by >>):

>> net/unix/af_unix.c:3590:1: warning: unused label 'err_sysctl' [-Wunused-label]
   err_sysctl:
   ^~~~~~~~~~~
   1 warning generated.


vim +/err_sysctl +3590 net/unix/af_unix.c

  3573	
  3574		net->unx.hash = kmalloc(sizeof(struct unix_hashbucket) * UNIX_HASH_SIZE,
  3575					GFP_KERNEL);
  3576		if (!net->unx.hash)
  3577			goto err_proc;
  3578	
  3579		for (i = 0; i < UNIX_HASH_SIZE; i++) {
  3580			INIT_HLIST_HEAD(&net->unx.hash[i].head);
  3581			spin_lock_init(&net->unx.hash[i].lock);
  3582		}
  3583	
  3584		return 0;
  3585	
  3586	err_proc:
  3587	#ifdef CONFIG_PROC_FS
  3588		remove_proc_entry("unix", net->proc_net);
  3589	#endif
> 3590	err_sysctl:
  3591		unix_sysctl_unregister(net);
  3592	out:
  3593		return -ENOMEM;
  3594	}
  3595	

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