From: kernel test robot <lkp@intel.com>
To: Coco Li <lixiaoyan@google.com>, Jakub Kicinski <kuba@kernel.org>,
Eric Dumazet <edumazet@google.com>,
Neal Cardwell <ncardwell@google.com>,
Mubashir Adnan Qureshi <mubashirq@google.com>,
Paolo Abeni <pabeni@redhat.com>, Andrew Lunn <andrew@lunn.ch>,
Jonathan Corbet <corbet@lwn.net>,
David Ahern <dsahern@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>
Cc: oe-kbuild-all@lists.linux.dev, netdev@vger.kernel.org,
Chao Wu <wwchao@google.com>, Wei Wang <weiwan@google.com>,
Pradeep Nemavat <pnemavat@google.com>,
Coco Li <lixiaoyan@google.com>
Subject: Re: [PATCH v5 net-next 3/5] netns-ipv4: reorganize netns_ipv4 fast path variables
Date: Sun, 29 Oct 2023 20:11:20 +0800 [thread overview]
Message-ID: <202310291919.kni6w2ii-lkp@intel.com> (raw)
In-Reply-To: <20231029075244.2612089-4-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/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: riscv-randconfig-002-20231029 (https://download.01.org/0day-ci/archive/20231029/202310291919.kni6w2ii-lkp@intel.com/config)
compiler: riscv64-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231029/202310291919.kni6w2ii-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 <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202310291919.kni6w2ii-lkp@intel.com/
All warnings (new ones prefixed by >>):
net/core/net_namespace.c: In function 'netns_ipv4_struct_check':
net/core/net_namespace.c:1127:9: error: expected expression before '/' token
1127 | / TXRX readonly hotpath cache lines */
| ^
net/core/net_namespace.c: At top level:
>> 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
next prev parent reply other threads:[~2023-10-29 12:12 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-29 7:52 [PATCH v5 net-next 0/5] Analyze and Reorganize core Networking Structs to optimize cacheline consumption Coco Li
2023-10-29 7:52 ` [PATCH v5 net-next 1/5] Documentations: Analyze heavily used Networking related structs Coco Li
2023-10-29 7:52 ` [PATCH v5 net-next 2/5] cache: enforce cache groups Coco Li
2023-10-29 7:52 ` [PATCH v5 net-next 3/5] netns-ipv4: reorganize netns_ipv4 fast path variables Coco Li
2023-10-29 12:11 ` kernel test robot [this message]
2023-10-29 12:21 ` kernel test robot
2023-10-29 12:54 ` kernel test robot
2023-10-29 18:00 ` Coco Li
2023-10-29 7:52 ` [PATCH v5 net-next 4/5] net-device: reorganize net_device " Coco Li
2023-10-29 7:52 ` [PATCH v5 net-next 5/5] tcp: reorganize tcp_sock " Coco Li
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