Hi Pascal, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on tip/perf/core] [also build test WARNING on linux/master v5.8] [cannot apply to security/next-testing linus/master next-20200814] [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] url: https://github.com/0day-ci/linux/commits/Pascal-Bouchareine/proc-socket-attach-description-to-sockets/20200816-090222 base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git d903b6d029d66e6478562d75ea18d89098f7b7e8 config: x86_64-randconfig-r006-20200816 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project ab9fc8bae805c785066779e76e7846aabad5609e) 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 # install x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> net/core/sock.c:831:5: warning: no previous prototype for function 'sock_set_description' [-Wmissing-prototypes] int sock_set_description(struct sock *sk, char __user *user_desc) ^ net/core/sock.c:831:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int sock_set_description(struct sock *sk, char __user *user_desc) ^ static 1 warning generated. vim +/sock_set_description +831 net/core/sock.c 830 > 831 int sock_set_description(struct sock *sk, char __user *user_desc) 832 { 833 char *old, *desc; 834 835 desc = strndup_user(user_desc, SK_MAX_DESC_SIZE, GFP_KERNEL_ACCOUNT); 836 if (IS_ERR(desc)) 837 return PTR_ERR(desc); 838 839 lock_sock(sk); 840 old = sk->sk_description; 841 sk->sk_description = desc; 842 release_sock(sk); 843 844 kfree(old); 845 846 return 0; 847 } 848 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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