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d="scan'208";a="335244920" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Jun 2023 10:16:34 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10728"; a="1037583744" X-IronPort-AV: E=Sophos;i="6.00,210,1681196400"; d="scan'208";a="1037583744" Received: from lkp-server01.sh.intel.com (HELO fb1ced2c09fb) ([10.239.97.150]) by fmsmga005.fm.intel.com with ESMTP; 01 Jun 2023 10:16:33 -0700 Received: from kbuild by fb1ced2c09fb with local (Exim 4.96) (envelope-from ) id 1q4lua-0002WP-2p; Thu, 01 Jun 2023 17:16:32 +0000 Date: Fri, 2 Jun 2023 01:15:39 +0800 From: kernel test robot To: Bobby Eshleman Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev Subject: Re: [PATCH RFC net-next v3 4/8] vsock: make vsock bind reusable Message-ID: <202306020103.SKP4Pz6Z-lkp@intel.com> References: <20230413-b4-vsock-dgram-v3-4-c2414413ef6a@bytedance.com> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230413-b4-vsock-dgram-v3-4-c2414413ef6a@bytedance.com> Hi Bobby, [This is a private test report for your RFC patch.] kernel test robot noticed the following build warnings: [auto build test WARNING on ed72bd5a6790a0c3747cb32b0427f921bd03bb71] url: https://github.com/intel-lab-lkp/linux/commits/Bobby-Eshleman/vsock-dgram-generalize-recvmsg-and-drop-transport-dgram_dequeue/20230531-084049 base: ed72bd5a6790a0c3747cb32b0427f921bd03bb71 patch link: https://lore.kernel.org/r/20230413-b4-vsock-dgram-v3-4-c2414413ef6a%40bytedance.com patch subject: [PATCH RFC net-next v3 4/8] vsock: make vsock bind reusable config: s390-randconfig-r044-20230531 (https://download.01.org/0day-ci/archive/20230602/202306020103.SKP4Pz6Z-lkp@intel.com/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 4faf3aaf28226a4e950c103a14f6fc1d1fdabb1b) reproduce (this is a W=1 build): mkdir -p ~/bin wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install s390 cross compiling tool for clang build # apt-get install binutils-s390x-linux-gnu # https://github.com/intel-lab-lkp/linux/commit/f69c7f6d6d618c47334134277ad9a2d3877020f5 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Bobby-Eshleman/vsock-dgram-generalize-recvmsg-and-drop-transport-dgram_dequeue/20230531-084049 git checkout f69c7f6d6d618c47334134277ad9a2d3877020f5 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ~/bin/make.cross W=1 O=build_dir ARCH=s390 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ~/bin/make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash net/vmw_vsock/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202306020103.SKP4Pz6Z-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from net/vmw_vsock/af_vsock.c:93: In file included from include/linux/io.h:13: In file included from arch/s390/include/asm/io.h:75: include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __raw_readb(PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/big_endian.h:37:59: note: expanded from macro '__le16_to_cpu' #define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x)) ^ include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16' #define __swab16(x) (__u16)__builtin_bswap16((__u16)(x)) ^ In file included from net/vmw_vsock/af_vsock.c:93: In file included from include/linux/io.h:13: In file included from arch/s390/include/asm/io.h:75: include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/big_endian.h:35:59: note: expanded from macro '__le32_to_cpu' #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x)) ^ include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32' #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x)) ^ In file included from net/vmw_vsock/af_vsock.c:93: In file included from include/linux/io.h:13: In file included from arch/s390/include/asm/io.h:75: include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writeb(value, PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:692:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] readsb(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:700:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] readsw(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:708:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] readsl(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:717:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] writesb(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:726:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] writesw(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:735:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] writesl(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ >> net/vmw_vsock/af_vsock.c:233:14: warning: no previous prototype for function 'vsock_find_bound_socket_common' [-Wmissing-prototypes] struct sock *vsock_find_bound_socket_common(struct sockaddr_vm *addr, ^ net/vmw_vsock/af_vsock.c:233:1: note: declare 'static' if the function is not intended to be used outside of this translation unit struct sock *vsock_find_bound_socket_common(struct sockaddr_vm *addr, ^ static >> net/vmw_vsock/af_vsock.c:652:5: warning: no previous prototype for function 'vsock_bind_common' [-Wmissing-prototypes] int vsock_bind_common(struct vsock_sock *vsk, ^ net/vmw_vsock/af_vsock.c:652:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int vsock_bind_common(struct vsock_sock *vsk, ^ static >> net/vmw_vsock/af_vsock.c:720:5: warning: no previous prototype for function 'vsock_bind_stream' [-Wmissing-prototypes] int vsock_bind_stream(struct vsock_sock *vsk, ^ net/vmw_vsock/af_vsock.c:720:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int vsock_bind_stream(struct vsock_sock *vsk, ^ static 15 warnings generated. vim +/vsock_find_bound_socket_common +233 net/vmw_vsock/af_vsock.c 232 > 233 struct sock *vsock_find_bound_socket_common(struct sockaddr_vm *addr, 234 struct list_head *bind_table) 235 { 236 struct vsock_sock *vsk; 237 238 list_for_each_entry(vsk, bind_table, bound_table) { 239 if (vsock_addr_equals_addr(addr, &vsk->local_addr)) 240 return sk_vsock(vsk); 241 242 if (addr->svm_port == vsk->local_addr.svm_port && 243 (vsk->local_addr.svm_cid == VMADDR_CID_ANY || 244 addr->svm_cid == VMADDR_CID_ANY)) 245 return sk_vsock(vsk); 246 } 247 248 return NULL; 249 } 250 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki