From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.20]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D932F81E; Sun, 29 Oct 2023 12:55:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="OvaW1wEF" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1698584105; x=1730120105; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=uuVOo2cSJbl54SVJTPcZzZIDzT0I0Vfu2pQz5kAivK4=; b=OvaW1wEFyO3tXDKvT+BRUYuLeRS5bIVER5pHsUahk66Ul4yh0vmTunTK mBjdBkm88ZMW7i8duEnYYbtLzajlmHXIV1M1ydYnnv8aIuw4USGmu7Cmq u/+HiqNFqpvrjEICxsULzmvXfyIgt9CrXXY1LgnNgg1oKn3R7yzff42h1 sSR5hjD0/pxiD1uhqB/k6JEMA6X4bjTtdwBXhOWqqq6M0KuOWabvqHOD8 osmm7XO/nms3HJ+v6AL4VdkWvEFRZ3egaYO3Me7FCXp1hX8rWr/U731rF rFbkdmlvBvo6QUBhErYHFeK1q2UYbngN1jc2xdti9mc59cNn9T7PqdW0N A==; X-IronPort-AV: E=McAfee;i="6600,9927,10877"; a="378324098" X-IronPort-AV: E=Sophos;i="6.03,261,1694761200"; d="scan'208";a="378324098" Received: from fmviesa002.fm.intel.com ([10.60.135.142]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Oct 2023 05:55:03 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.03,261,1694761200"; d="scan'208";a="1278485" Received: from lkp-server01.sh.intel.com (HELO 8917679a5d3e) ([10.239.97.150]) by fmviesa002.fm.intel.com with ESMTP; 29 Oct 2023 05:54:46 -0700 Received: from kbuild by 8917679a5d3e with local (Exim 4.96) (envelope-from ) id 1qx5Jh-000CZ7-2E; Sun, 29 Oct 2023 12:54:57 +0000 Date: Sun, 29 Oct 2023 20:54:06 +0800 From: kernel test robot To: Coco Li , Jakub Kicinski , Eric Dumazet , Neal Cardwell , Mubashir Adnan Qureshi , Paolo Abeni , Andrew Lunn , Jonathan Corbet , David Ahern , Daniel Borkmann Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, netdev@vger.kernel.org, Chao Wu , Wei Wang , Pradeep Nemavat , Coco Li Subject: Re: [PATCH v5 net-next 3/5] netns-ipv4: reorganize netns_ipv4 fast path variables Message-ID: <202310292036.So7PkmBh-lkp@intel.com> References: <20231029075244.2612089-4-lixiaoyan@google.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: <20231029075244.2612089-4-lixiaoyan@google.com> Hi Coco, kernel test robot noticed the following build errors: [auto build test ERROR on net-next/main] url: https://github.com/intel-lab-lkp/linux/commits/Coco-Li/Documentations-Analyze-heavily-used-Networking-related-structs/20231029-172902 base: net-next/main patch link: https://lore.kernel.org/r/20231029075244.2612089-4-lixiaoyan%40google.com patch subject: [PATCH v5 net-next 3/5] netns-ipv4: reorganize netns_ipv4 fast path variables config: um-allnoconfig (https://download.01.org/0day-ci/archive/20231029/202310292036.So7PkmBh-lkp@intel.com/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231029/202310292036.So7PkmBh-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/202310292036.So7PkmBh-lkp@intel.com/ All errors (new ones prefixed by >>): In file included from net/core/net_namespace.c:5: In file included from include/linux/rtnetlink.h:7: In file included from include/linux/netdevice.h:38: In file included from include/net/net_namespace.h:43: In file included from include/linux/skbuff.h:17: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:12: In file included from include/linux/hardirq.h:11: In file included from arch/um/include/asm/hardirq.h:5: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/um/include/asm/io.h:24: include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 547 | 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] 560 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu' 37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) | ^ In file included from net/core/net_namespace.c:5: In file included from include/linux/rtnetlink.h:7: In file included from include/linux/netdevice.h:38: In file included from include/net/net_namespace.h:43: In file included from include/linux/skbuff.h:17: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:12: In file included from include/linux/hardirq.h:11: In file included from arch/um/include/asm/hardirq.h:5: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/um/include/asm/io.h:24: include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 573 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu' 35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) | ^ In file included from net/core/net_namespace.c:5: In file included from include/linux/rtnetlink.h:7: In file included from include/linux/netdevice.h:38: In file included from include/net/net_namespace.h:43: In file included from include/linux/skbuff.h:17: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:12: In file included from include/linux/hardirq.h:11: In file included from arch/um/include/asm/hardirq.h:5: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/um/include/asm/io.h:24: include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 584 | __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] 594 | __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] 604 | __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] 692 | 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] 700 | 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] 708 | 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] 717 | 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] 726 | 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] 735 | writesl(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ >> net/core/net_namespace.c:1127:2: error: expected expression 1127 | / TXRX readonly hotpath cache lines */ | ^ >> net/core/net_namespace.c:1127:4: error: use of undeclared identifier 'TXRX' 1127 | / TXRX readonly hotpath cache lines */ | ^ 12 warnings and 2 errors generated. vim +1127 net/core/net_namespace.c 1101 1102 static void __init netns_ipv4_struct_check(void) 1103 { 1104 /* TX readonly hotpath cache lines */ 1105 CACHELINE_ASSERT_GROUP_MEMBER(struct netns_ipv4, netns_ipv4_read_tx, 1106 sysctl_tcp_early_retrans); 1107 CACHELINE_ASSERT_GROUP_MEMBER(struct netns_ipv4, netns_ipv4_read_tx, 1108 sysctl_tcp_tso_win_divisor); 1109 CACHELINE_ASSERT_GROUP_MEMBER(struct netns_ipv4, netns_ipv4_read_tx, 1110 sysctl_tcp_tso_rtt_log); 1111 CACHELINE_ASSERT_GROUP_MEMBER(struct netns_ipv4, netns_ipv4_read_tx, 1112 sysctl_tcp_autocorking); 1113 CACHELINE_ASSERT_GROUP_MEMBER(struct netns_ipv4, netns_ipv4_read_tx, 1114 sysctl_tcp_min_snd_mss); 1115 CACHELINE_ASSERT_GROUP_MEMBER(struct netns_ipv4, netns_ipv4_read_tx, 1116 sysctl_tcp_notsent_lowat); 1117 CACHELINE_ASSERT_GROUP_MEMBER(struct netns_ipv4, netns_ipv4_read_tx, 1118 sysctl_tcp_limit_output_bytes); 1119 CACHELINE_ASSERT_GROUP_MEMBER(struct netns_ipv4, netns_ipv4_read_tx, 1120 sysctl_tcp_min_rtt_wlen); 1121 CACHELINE_ASSERT_GROUP_MEMBER(struct netns_ipv4, netns_ipv4_read_tx, 1122 sysctl_tcp_wmem); 1123 CACHELINE_ASSERT_GROUP_MEMBER(struct netns_ipv4, netns_ipv4_read_tx, 1124 sysctl_ip_fwd_use_pmtu); 1125 CACHELINE_ASSERT_GROUP_SIZE(struct netns_ipv4, netns_ipv4_read_tx, 33); 1126 > 1127 / TXRX readonly hotpath cache lines */ 1128 CACHELINE_ASSERT_GROUP_MEMBER(struct netns_ipv4, netns_ipv4_read_txrx, 1129 sysctl_tcp_moderate_rcvbuf); 1130 CACHELINE_ASSERT_GROUP_SIZE(struct netns_ipv4, netns_ipv4_read_txrx, 1); 1131 1132 /* RX readonly hotpath cache line */ 1133 CACHELINE_ASSERT_GROUP_MEMBER(struct netns_ipv4, netns_ipv4_read_rx, 1134 sysctl_ip_early_demux); 1135 CACHELINE_ASSERT_GROUP_MEMBER(struct netns_ipv4, netns_ipv4_read_rx, 1136 sysctl_tcp_early_demux); 1137 CACHELINE_ASSERT_GROUP_MEMBER(struct netns_ipv4, netns_ipv4_read_rx, 1138 sysctl_tcp_reordering); 1139 CACHELINE_ASSERT_GROUP_MEMBER(struct netns_ipv4, netns_ipv4_read_rx, 1140 sysctl_tcp_rmem); 1141 CACHELINE_ASSERT_GROUP_SIZE(struct netns_ipv4, netns_ipv4_read_rx, 18); 1142 } 1143 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki