Hi Hadar, [auto build test ERROR on net-next/master]
url: https://github.com/0day-ci/linux/commits/Hadar-Hen-Zion/flow_dissector-Get-vlan-info-from-skb-vlan_tci-instead-of-skb-data/20160811-042500 config: m68k-sun3_defconfig (attached as .config) compiler: m68k-linux-gcc (GCC) 4.9.0 reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=m68k All error/warnings (new ones prefixed by >>): In file included from include/linux/linkage.h:4:0, from include/linux/kernel.h:6, from net/core/flow_dissector.c:1: In function 'flow_keys_hash_length.isra.3', inlined from 'flow_hash_from_keys' at net/core/flow_dissector.c:599:9: >> include/linux/compiler.h:491:38: error: call to '__compiletime_assert_512' >> declared with attribute error: BUILD_BUG_ON failed: (sizeof(*flow) - >> FLOW_KEYS_HASH_OFFSET) % sizeof(u32) _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__) ^ include/linux/compiler.h:474:4: note: in definition of macro '__compiletime_assert' prefix ## suffix(); \ ^ include/linux/compiler.h:491:2: note: in expansion of macro '_compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__) ^ include/linux/bug.h:51:37: note: in expansion of macro 'compiletime_assert' #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) ^ include/linux/bug.h:75:2: note: in expansion of macro 'BUILD_BUG_ON_MSG' BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition) ^ >> net/core/flow_dissector.c:512:2: note: in expansion of macro 'BUILD_BUG_ON' BUILD_BUG_ON((sizeof(*flow) - FLOW_KEYS_HASH_OFFSET) % sizeof(u32)); ^ In function 'flow_keys_hash_length.isra.3', inlined from '__skb_get_hash' at net/core/flow_dissector.c:599:9: >> include/linux/compiler.h:491:38: error: call to '__compiletime_assert_512' >> declared with attribute error: BUILD_BUG_ON failed: (sizeof(*flow) - >> FLOW_KEYS_HASH_OFFSET) % sizeof(u32) _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__) ^ include/linux/compiler.h:474:4: note: in definition of macro '__compiletime_assert' prefix ## suffix(); \ ^ include/linux/compiler.h:491:2: note: in expansion of macro '_compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__) ^ include/linux/bug.h:51:37: note: in expansion of macro 'compiletime_assert' #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) ^ include/linux/bug.h:75:2: note: in expansion of macro 'BUILD_BUG_ON_MSG' BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition) ^ >> net/core/flow_dissector.c:512:2: note: in expansion of macro 'BUILD_BUG_ON' BUILD_BUG_ON((sizeof(*flow) - FLOW_KEYS_HASH_OFFSET) % sizeof(u32)); ^ In function 'flow_keys_hash_length.isra.3', inlined from 'skb_get_hash_perturb' at net/core/flow_dissector.c:599:9: >> include/linux/compiler.h:491:38: error: call to '__compiletime_assert_512' >> declared with attribute error: BUILD_BUG_ON failed: (sizeof(*flow) - >> FLOW_KEYS_HASH_OFFSET) % sizeof(u32) _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__) ^ include/linux/compiler.h:474:4: note: in definition of macro '__compiletime_assert' prefix ## suffix(); \ ^ include/linux/compiler.h:491:2: note: in expansion of macro '_compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__) ^ include/linux/bug.h:51:37: note: in expansion of macro 'compiletime_assert' #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) ^ include/linux/bug.h:75:2: note: in expansion of macro 'BUILD_BUG_ON_MSG' BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition) ^ >> net/core/flow_dissector.c:512:2: note: in expansion of macro 'BUILD_BUG_ON' BUILD_BUG_ON((sizeof(*flow) - FLOW_KEYS_HASH_OFFSET) % sizeof(u32)); ^ In function 'flow_keys_hash_length.isra.3', inlined from '__skb_get_hash_symmetric' at net/core/flow_dissector.c:599:9: >> include/linux/compiler.h:491:38: error: call to '__compiletime_assert_512' >> declared with attribute error: BUILD_BUG_ON failed: (sizeof(*flow) - >> FLOW_KEYS_HASH_OFFSET) % sizeof(u32) _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__) ^ include/linux/compiler.h:474:4: note: in definition of macro '__compiletime_assert' prefix ## suffix(); \ ^ include/linux/compiler.h:491:2: note: in expansion of macro '_compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__) ^ include/linux/bug.h:51:37: note: in expansion of macro 'compiletime_assert' #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) ^ include/linux/bug.h:75:2: note: in expansion of macro 'BUILD_BUG_ON_MSG' BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition) ^ >> net/core/flow_dissector.c:512:2: note: in expansion of macro 'BUILD_BUG_ON' BUILD_BUG_ON((sizeof(*flow) - FLOW_KEYS_HASH_OFFSET) % sizeof(u32)); ^ vim +/BUILD_BUG_ON +512 net/core/flow_dissector.c 20a17bf6 David S. Miller 2015-09-01 496 u32 keyval) 42aecaa9 Tom Herbert 2015-06-04 497 { 42aecaa9 Tom Herbert 2015-06-04 498 return jhash2(words, length, keyval); 42aecaa9 Tom Herbert 2015-06-04 499 } 42aecaa9 Tom Herbert 2015-06-04 500 20a17bf6 David S. Miller 2015-09-01 501 static inline const u32 *flow_keys_hash_start(const struct flow_keys *flow) 66415cf8 Hannes Frederic Sowa 2013-10-23 502 { 20a17bf6 David S. Miller 2015-09-01 503 const void *p = flow; 20a17bf6 David S. Miller 2015-09-01 504 42aecaa9 Tom Herbert 2015-06-04 505 BUILD_BUG_ON(FLOW_KEYS_HASH_OFFSET % sizeof(u32)); 20a17bf6 David S. Miller 2015-09-01 506 return (const u32 *)(p + FLOW_KEYS_HASH_OFFSET); 42aecaa9 Tom Herbert 2015-06-04 507 } 42aecaa9 Tom Herbert 2015-06-04 508 20a17bf6 David S. Miller 2015-09-01 509 static inline size_t flow_keys_hash_length(const struct flow_keys *flow) 42aecaa9 Tom Herbert 2015-06-04 510 { c3f83241 Tom Herbert 2015-06-04 511 size_t diff = FLOW_KEYS_HASH_OFFSET + sizeof(flow->addrs); 42aecaa9 Tom Herbert 2015-06-04 @512 BUILD_BUG_ON((sizeof(*flow) - FLOW_KEYS_HASH_OFFSET) % sizeof(u32)); c3f83241 Tom Herbert 2015-06-04 513 BUILD_BUG_ON(offsetof(typeof(*flow), addrs) != c3f83241 Tom Herbert 2015-06-04 514 sizeof(*flow) - sizeof(flow->addrs)); c3f83241 Tom Herbert 2015-06-04 515 c3f83241 Tom Herbert 2015-06-04 516 switch (flow->control.addr_type) { c3f83241 Tom Herbert 2015-06-04 517 case FLOW_DISSECTOR_KEY_IPV4_ADDRS: c3f83241 Tom Herbert 2015-06-04 518 diff -= sizeof(flow->addrs.v4addrs); c3f83241 Tom Herbert 2015-06-04 519 break; c3f83241 Tom Herbert 2015-06-04 520 case FLOW_DISSECTOR_KEY_IPV6_ADDRS: :::::: The code at line 512 was first introduced by commit :::::: 42aecaa9bb2bd57eb8d61b4565cee5d3640863fb net: Get skb hash over flow_keys structure :::::: TO: Tom Herbert <t...@herbertland.com> :::::: 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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