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Thu, 02 Nov 2023 04:15:27 +0000 Date: Thu, 2 Nov 2023 12:14:31 +0800 From: kernel test robot To: Daan De Meyer Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Martin KaFai Lau Subject: net/core/filter.c:11773:17: warning: no previous declaration for 'bpf_sock_addr_set_sun_path' Message-ID: <202311021257.nD9pHYSn-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Daan, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: babe393974de0351c0e6cca50f5f84edaf8d7fa1 commit: 53e380d21441909b12b6e0782b77187ae4b971c4 bpf: Add bpf_sock_addr_set_sun_path() to allow writing unix sockaddr from bpf date: 3 weeks ago config: um-i386_defconfig (https://download.01.org/0day-ci/archive/20231102/202311021257.nD9pHYSn-lkp@intel.com/config) compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231102/202311021257.nD9pHYSn-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202311021257.nD9pHYSn-lkp@intel.com/ All warnings (new ones prefixed by >>): net/core/filter.c:11747:17: warning: no previous declaration for 'bpf_dynptr_from_skb' [-Wmissing-declarations] __bpf_kfunc int bpf_dynptr_from_skb(struct sk_buff *skb, u64 flags, ^~~~~~~~~~~~~~~~~~~ net/core/filter.c:11760:17: warning: no previous declaration for 'bpf_dynptr_from_xdp' [-Wmissing-declarations] __bpf_kfunc int bpf_dynptr_from_xdp(struct xdp_buff *xdp, u64 flags, ^~~~~~~~~~~~~~~~~~~ >> net/core/filter.c:11773:17: warning: no previous declaration for 'bpf_sock_addr_set_sun_path' [-Wmissing-declarations] __bpf_kfunc int bpf_sock_addr_set_sun_path(struct bpf_sock_addr_kern *sa_kern, ^~~~~~~~~~~~~~~~~~~~~~~~~~ net/core/filter.c:11877:17: warning: no previous declaration for 'bpf_sock_destroy' [-Wmissing-declarations] __bpf_kfunc int bpf_sock_destroy(struct sock_common *sock) ^~~~~~~~~~~~~~~~ vim +/bpf_sock_addr_set_sun_path +11773 net/core/filter.c 11772 11773 __bpf_kfunc int bpf_sock_addr_set_sun_path(struct bpf_sock_addr_kern *sa_kern, 11774 const u8 *sun_path, u32 sun_path__sz) 11775 { 11776 struct sockaddr_un *un; 11777 11778 if (sa_kern->sk->sk_family != AF_UNIX) 11779 return -EINVAL; 11780 11781 /* We do not allow changing the address to unnamed or larger than the 11782 * maximum allowed address size for a unix sockaddr. 11783 */ 11784 if (sun_path__sz == 0 || sun_path__sz > UNIX_PATH_MAX) 11785 return -EINVAL; 11786 11787 un = (struct sockaddr_un *)sa_kern->uaddr; 11788 memcpy(un->sun_path, sun_path, sun_path__sz); 11789 sa_kern->uaddrlen = offsetof(struct sockaddr_un, sun_path) + sun_path__sz; 11790 11791 return 0; 11792 } 11793 __diag_pop(); 11794 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki