Hi Gao, [auto build test WARNING on nf/master]
url: https://github.com/0day-ci/linux/commits/gfree-wind-foxmail-com/netfilter-snmp-Fix-one-possible-panic-when-snmp_trap_helper-fail-to-register/20170327-081220 base: https://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf.git master config: x86_64-randconfig-s2-03272042 (attached as .config) compiler: gcc-4.4 (Debian 4.4.7-8) 4.4.7 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All warnings (new ones prefixed by >>): net/ipv4//netfilter/nf_nat_snmp_basic.c: In function 'nf_nat_snmp_basic_init': >> net/ipv4//netfilter/nf_nat_snmp_basic.c:1281: warning: unused variable 'ret' vim +/ret +1281 net/ipv4//netfilter/nf_nat_snmp_basic.c 807467c22 Patrick McHardy 2006-12-02 1265 .help = help, 6002f266b Patrick McHardy 2008-03-25 1266 .expect_policy = &snmp_exp_policy, 807467c22 Patrick McHardy 2006-12-02 1267 .name = "snmp_trap", 807467c22 Patrick McHardy 2006-12-02 1268 .tuple.src.l3num = AF_INET, 09640e636 Harvey Harrison 2009-02-01 1269 .tuple.src.u.udp.port = cpu_to_be16(SNMP_TRAP_PORT), 807467c22 Patrick McHardy 2006-12-02 1270 .tuple.dst.protonum = IPPROTO_UDP, 807467c22 Patrick McHardy 2006-12-02 1271 }; 807467c22 Patrick McHardy 2006-12-02 1272 807467c22 Patrick McHardy 2006-12-02 1273 /***************************************************************************** 807467c22 Patrick McHardy 2006-12-02 1274 * 807467c22 Patrick McHardy 2006-12-02 1275 * Module stuff. 807467c22 Patrick McHardy 2006-12-02 1276 * 807467c22 Patrick McHardy 2006-12-02 1277 *****************************************************************************/ 807467c22 Patrick McHardy 2006-12-02 1278 807467c22 Patrick McHardy 2006-12-02 1279 static int __init nf_nat_snmp_basic_init(void) 807467c22 Patrick McHardy 2006-12-02 1280 { 807467c22 Patrick McHardy 2006-12-02 @1281 int ret = 0; 807467c22 Patrick McHardy 2006-12-02 1282 93557f53e Jiri Olsa 2011-01-18 1283 BUG_ON(nf_nat_snmp_hook != NULL); a9b3cd7f3 Stephen Hemminger 2011-08-01 1284 RCU_INIT_POINTER(nf_nat_snmp_hook, help); 93557f53e Jiri Olsa 2011-01-18 1285 9b25a2987 Gao Feng 2017-03-25 1286 return nf_conntrack_helper_register(&snmp_trap_helper); 807467c22 Patrick McHardy 2006-12-02 1287 } 807467c22 Patrick McHardy 2006-12-02 1288 807467c22 Patrick McHardy 2006-12-02 1289 static void __exit nf_nat_snmp_basic_fini(void) :::::: The code at line 1281 was first introduced by commit :::::: 807467c22a12381985878be23c778657fc0364d0 [NETFILTER]: nf_nat: add SNMP NAT helper port :::::: TO: Patrick McHardy <ka...@trash.net> :::::: CC: David S. Miller <da...@davemloft.net> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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