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X-IronPort-AV: E=McAfee;i="6600,9927,10883"; a="374046670" X-IronPort-AV: E=Sophos;i="6.03,275,1694761200"; d="scan'208";a="374046670" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Nov 2023 13:01:11 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10883"; a="796720505" X-IronPort-AV: E=Sophos;i="6.03,275,1694761200"; d="scan'208";a="796720505" Received: from lkp-server01.sh.intel.com (HELO 17d9e85e5079) ([10.239.97.150]) by orsmga001.jf.intel.com with ESMTP; 03 Nov 2023 13:01:06 -0700 Received: from kbuild by 17d9e85e5079 with local (Exim 4.96) (envelope-from ) id 1qz0Ln-0002u6-1r; Fri, 03 Nov 2023 20:01:03 +0000 Date: Sat, 4 Nov 2023 04:00:10 +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: oe-kbuild-all@lists.linux.dev, netdev@vger.kernel.org, Chao Wu , Wei Wang , Pradeep Nemavat , Coco Li Subject: Re: [PATCH v6 net-next 3/5] netns-ipv4: reorganize netns_ipv4 fast path variables Message-ID: <202311040337.CPhnv1CW-lkp@intel.com> References: <20231030052550.3157719-4-lixiaoyan@google.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20231030052550.3157719-4-lixiaoyan@google.com> Hi Coco, kernel test robot noticed the following build warnings: [auto build test WARNING on net-next/main] url: https://github.com/intel-lab-lkp/linux/commits/Coco-Li/Documentations-Analyze-heavily-used-Networking-related-structs/20231030-133431 base: net-next/main patch link: https://lore.kernel.org/r/20231030052550.3157719-4-lixiaoyan%40google.com patch subject: [PATCH v6 net-next 3/5] netns-ipv4: reorganize netns_ipv4 fast path variables config: i386-randconfig-013-20231101 (https://download.01.org/0day-ci/archive/20231104/202311040337.CPhnv1CW-lkp@intel.com/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231104/202311040337.CPhnv1CW-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/202311040337.CPhnv1CW-lkp@intel.com/ All warnings (new ones prefixed by >>): >> net/core/net_namespace.c:1102:20: warning: 'netns_ipv4_struct_check' defined but not used [-Wunused-function] 1102 | static void __init netns_ipv4_struct_check(void) | ^~~~~~~~~~~~~~~~~~~~~~~ vim +/netns_ipv4_struct_check +1102 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