tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 2bd6bf03f4c1c59381d62c61d03f6cc3fe71f66e commit: 8073e960a03bf7b5d5ebfc5ff18ac475e1688f46 netfilter: nat: use keyed locks date: 8 days ago config: x86_64-randconfig-s4-09170918 (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: git checkout 8073e960a03bf7b5d5ebfc5ff18ac475e1688f46 # save the attached .config to linux build tree make ARCH=x86_64
All warnings (new ones prefixed by >>): In file included from include/linux/list.h:8:0, from include/linux/module.h:9, from net//netfilter/nf_nat_core.c:11: net//netfilter/nf_nat_core.c: In function 'nf_nat_setup_info': include/linux/kernel.h:60:38: warning: division by zero [-Wdiv-by-zero] #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) ^ net//netfilter/nf_nat_core.c:432:34: note: in expansion of macro 'ARRAY_SIZE' lock = &nf_nat_locks[srchash % ARRAY_SIZE(nf_nat_locks)]; ^~~~~~~~~~ net//netfilter/nf_nat_core.c: In function '__nf_nat_cleanup_conntrack': include/linux/kernel.h:60:38: warning: division by zero [-Wdiv-by-zero] #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) ^ net//netfilter/nf_nat_core.c:535:33: note: in expansion of macro 'ARRAY_SIZE' spin_lock_bh(&nf_nat_locks[h % ARRAY_SIZE(nf_nat_locks)]); ^~~~~~~~~~ include/linux/kernel.h:60:38: warning: division by zero [-Wdiv-by-zero] #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) ^ net//netfilter/nf_nat_core.c:537:35: note: in expansion of macro 'ARRAY_SIZE' spin_unlock_bh(&nf_nat_locks[h % ARRAY_SIZE(nf_nat_locks)]); ^~~~~~~~~~ In file included from include/uapi/linux/stddef.h:1:0, from include/linux/stddef.h:4, from include/uapi/linux/posix_types.h:4, from include/uapi/linux/types.h:13, from include/linux/types.h:5, from include/linux/list.h:4, from include/linux/module.h:9, from net//netfilter/nf_nat_core.c:11: net//netfilter/nf_nat_core.c: In function 'nf_nat_init': include/linux/kernel.h:60:38: warning: division by zero [-Wdiv-by-zero] #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) ^ include/linux/compiler.h:156:30: note: in definition of macro '__trace_if' if (__builtin_constant_p(!!(cond)) ? !!(cond) : \ ^~~~ >> net//netfilter/nf_nat_core.c:810:2: note: in expansion of macro 'if' if (nf_nat_htable_size < ARRAY_SIZE(nf_nat_locks)) ^~ net//netfilter/nf_nat_core.c:810:27: note: in expansion of macro 'ARRAY_SIZE' if (nf_nat_htable_size < ARRAY_SIZE(nf_nat_locks)) ^~~~~~~~~~ include/linux/kernel.h:60:38: warning: division by zero [-Wdiv-by-zero] #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) ^ include/linux/compiler.h:156:42: note: in definition of macro '__trace_if' if (__builtin_constant_p(!!(cond)) ? !!(cond) : \ ^~~~ >> net//netfilter/nf_nat_core.c:810:2: note: in expansion of macro 'if' if (nf_nat_htable_size < ARRAY_SIZE(nf_nat_locks)) ^~ net//netfilter/nf_nat_core.c:810:27: note: in expansion of macro 'ARRAY_SIZE' if (nf_nat_htable_size < ARRAY_SIZE(nf_nat_locks)) ^~~~~~~~~~ include/linux/kernel.h:60:38: warning: division by zero [-Wdiv-by-zero] #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) ^ include/linux/compiler.h:167:16: note: in definition of macro '__trace_if' ______r = !!(cond); \ ^~~~ >> net//netfilter/nf_nat_core.c:810:2: note: in expansion of macro 'if' if (nf_nat_htable_size < ARRAY_SIZE(nf_nat_locks)) ^~ net//netfilter/nf_nat_core.c:810:27: note: in expansion of macro 'ARRAY_SIZE' if (nf_nat_htable_size < ARRAY_SIZE(nf_nat_locks)) ^~~~~~~~~~ In file included from include/linux/list.h:8:0, from include/linux/module.h:9, from net//netfilter/nf_nat_core.c:11: include/linux/kernel.h:60:38: warning: division by zero [-Wdiv-by-zero] #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) ^ net//netfilter/nf_nat_core.c:811:24: note: in expansion of macro 'ARRAY_SIZE' nf_nat_htable_size = ARRAY_SIZE(nf_nat_locks); ^~~~~~~~~~ include/linux/kernel.h:60:38: warning: division by zero [-Wdiv-by-zero] #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) ^ net//netfilter/nf_nat_core.c:824:18: note: in expansion of macro 'ARRAY_SIZE' for (i = 0; i < ARRAY_SIZE(nf_nat_locks); i++) ^~~~~~~~~~ In file included from include/uapi/linux/stddef.h:1:0, from include/linux/stddef.h:4, from include/uapi/linux/posix_types.h:4, from include/uapi/linux/types.h:13, from include/linux/types.h:5, from include/linux/list.h:4, from include/linux/module.h:9, from net//netfilter/nf_nat_core.c:11: net//netfilter/nf_nat_core.c: At top level: include/linux/compiler.h:162:4: warning: '______f' is static but declared in inline function 'strcpy' which is not static ______f = { \ ^ include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if' #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) ) ^~~~~~~~~~ include/linux/string.h:390:2: note: in expansion of macro 'if' if (p_size == (size_t)-1 && q_size == (size_t)-1) ^~ include/linux/compiler.h:162:4: warning: '______f' is static but declared in inline function 'kmemdup' which is not static ______f = { \ ^ include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if' #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) ) ^~~~~~~~~~ include/linux/string.h:380:2: note: in expansion of macro 'if' if (p_size < size) ^~ include/linux/compiler.h:162:4: warning: '______f' is static but declared in inline function 'kmemdup' which is not static ______f = { \ ^ include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if' #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) ) ^~~~~~~~~~ include/linux/string.h:378:2: note: in expansion of macro 'if' if (__builtin_constant_p(size) && p_size < size) ^~ include/linux/compiler.h:162:4: warning: '______f' is static but declared in inline function 'memchr_inv' which is not static ______f = { \ ^ include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if' #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) ) ^~~~~~~~~~ include/linux/string.h:369:2: note: in expansion of macro 'if' if (p_size < size) ^~ include/linux/compiler.h:162:4: warning: '______f' is static but declared in inline function 'memchr_inv' which is not static ______f = { \ ^ include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if' #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) ) ^~~~~~~~~~ include/linux/string.h:367:2: note: in expansion of macro 'if' if (__builtin_constant_p(size) && p_size < size) ^~ include/linux/compiler.h:162:4: warning: '______f' is static but declared in inline function 'memchr' which is not static ______f = { \ ^ include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if' #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) ) ^~~~~~~~~~ include/linux/string.h:358:2: note: in expansion of macro 'if' if (p_size < size) ^~ include/linux/compiler.h:162:4: warning: '______f' is static but declared in inline function 'memchr' which is not static ______f = { \ ^ include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if' #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) ) ^~~~~~~~~~ include/linux/string.h:356:2: note: in expansion of macro 'if' if (__builtin_constant_p(size) && p_size < size) ^~ include/linux/compiler.h:162:4: warning: '______f' is static but declared in inline function 'memcmp' which is not static ______f = { \ ^ include/linux/compiler.h:154:23: note: in expansion of macro '__trace_if' #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) ) ^~~~~~~~~~ include/linux/string.h:348:2: note: in expansion of macro 'if' if (p_size < size || q_size < size) vim +/if +810 net//netfilter/nf_nat_core.c 803 804 static int __init nf_nat_init(void) 805 { 806 int ret, i; 807 808 /* Leave them the same for the moment. */ 809 nf_nat_htable_size = nf_conntrack_htable_size; > 810 if (nf_nat_htable_size < ARRAY_SIZE(nf_nat_locks)) 811 nf_nat_htable_size = ARRAY_SIZE(nf_nat_locks); 812 813 nf_nat_bysource = nf_ct_alloc_hashtable(&nf_nat_htable_size, 0); 814 if (!nf_nat_bysource) 815 return -ENOMEM; 816 817 ret = nf_ct_extend_register(&nat_extend); 818 if (ret < 0) { 819 nf_ct_free_hashtable(nf_nat_bysource, nf_nat_htable_size); 820 printk(KERN_ERR "nf_nat_core: Unable to register extension\n"); 821 return ret; 822 } 823 824 for (i = 0; i < ARRAY_SIZE(nf_nat_locks); i++) 825 spin_lock_init(&nf_nat_locks[i]); 826 827 nf_ct_helper_expectfn_register(&follow_master_nat); 828 829 BUG_ON(nfnetlink_parse_nat_setup_hook != NULL); 830 RCU_INIT_POINTER(nfnetlink_parse_nat_setup_hook, 831 nfnetlink_parse_nat_setup); 832 #ifdef CONFIG_XFRM 833 BUG_ON(nf_nat_decode_session_hook != NULL); 834 RCU_INIT_POINTER(nf_nat_decode_session_hook, __nf_nat_decode_session); 835 #endif 836 return 0; 837 } 838 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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