Hi Andrzej, [auto build test WARNING on v4.4-rc5] [also build test WARNING on next-20151217]
url: https://github.com/0day-ci/linux/commits/Andrzej-Hajda/err-h-add-type-checking-to-IS_ERR_VALUE-macro/20151218-185839 config: m68k-sun3_defconfig (attached as .config) 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 warnings (new ones prefixed by >>): 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/uapi/linux/sysinfo.h:4, from include/uapi/linux/kernel.h:4, from include/linux/cache.h:4, from net/ipv4/netfilter/ip_tables.c:13: In function 'find_check_entry.isra.12', inlined from 'translate_table' at net/ipv4/netfilter/ip_tables.c:868:7: include/linux/compiler.h:484:38: error: call to '__compiletime_assert_674' declared with attribute error: Invalid IS_ERR_VALUE argument type _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__) ^ include/linux/compiler.h:467:4: note: in definition of macro '__compiletime_assert' prefix ## suffix(); \ ^ include/linux/compiler.h:484:2: note: in expansion of macro '_compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__) ^ include/linux/bug.h:50:37: note: in expansion of macro 'compiletime_assert' #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) ^ include/linux/err.h:24:5: note: in expansion of macro 'BUILD_BUG_ON_MSG' BUILD_BUG_ON_MSG((typeof(x))(-MAX_ERRNO) != (unsigned long)-MAX_ERRNO, "Invalid IS_ERR_VALUE argument type");\ ^ >> net/ipv4/netfilter/ip_tables.c:674:6: note: in expansion of macro >> 'IS_ERR_VALUE' if (IS_ERR_VALUE(e->counters.pcnt)) ^ -- In file included from include/linux/linkage.h:4:0, from include/linux/kernel.h:6, from net/ipv4/netfilter/arp_tables.c:13: In function 'find_check_entry.isra.14', inlined from 'translate_table' at net/ipv4/netfilter/arp_tables.c:702:7: include/linux/compiler.h:484:38: error: call to '__compiletime_assert_530' declared with attribute error: Invalid IS_ERR_VALUE argument type _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__) ^ include/linux/compiler.h:467:4: note: in definition of macro '__compiletime_assert' prefix ## suffix(); \ ^ include/linux/compiler.h:484:2: note: in expansion of macro '_compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__) ^ include/linux/bug.h:50:37: note: in expansion of macro 'compiletime_assert' #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) ^ include/linux/err.h:24:5: note: in expansion of macro 'BUILD_BUG_ON_MSG' BUILD_BUG_ON_MSG((typeof(x))(-MAX_ERRNO) != (unsigned long)-MAX_ERRNO, "Invalid IS_ERR_VALUE argument type");\ ^ >> net/ipv4/netfilter/arp_tables.c:530:6: note: in expansion of macro >> 'IS_ERR_VALUE' if (IS_ERR_VALUE(e->counters.pcnt)) ^ -- In file included from include/linux/linkage.h:4:0, from include/linux/kernel.h:6, from net/ipv6/netfilter/ip6_tables.c:15: In function 'find_check_entry.isra.12', inlined from 'translate_table' at net/ipv6/netfilter/ip6_tables.c:880:7: include/linux/compiler.h:484:38: error: call to '__compiletime_assert_687' declared with attribute error: Invalid IS_ERR_VALUE argument type _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__) ^ include/linux/compiler.h:467:4: note: in definition of macro '__compiletime_assert' prefix ## suffix(); \ ^ include/linux/compiler.h:484:2: note: in expansion of macro '_compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__) ^ include/linux/bug.h:50:37: note: in expansion of macro 'compiletime_assert' #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) ^ include/linux/err.h:24:5: note: in expansion of macro 'BUILD_BUG_ON_MSG' BUILD_BUG_ON_MSG((typeof(x))(-MAX_ERRNO) != (unsigned long)-MAX_ERRNO, "Invalid IS_ERR_VALUE argument type");\ ^ >> net/ipv6/netfilter/ip6_tables.c:687:6: note: in expansion of macro >> 'IS_ERR_VALUE' if (IS_ERR_VALUE(e->counters.pcnt)) ^ vim +/IS_ERR_VALUE +674 net/ipv4/netfilter/ip_tables.c 022748a9 Denys Vlasenko 2008-01-14 658 static int a83d8e8d Alexey Dobriyan 2010-01-18 659 find_check_entry(struct ipt_entry *e, struct net *net, const char *name, 0559518b Jan Engelhardt 2010-02-24 660 unsigned int size) ^1da177e Linus Torvalds 2005-04-16 661 { 87a2e70d Jan Engelhardt 2010-10-13 662 struct xt_entry_target *t; 6709dbbb Jan Engelhardt 2007-02-07 663 struct xt_target *target; ^1da177e Linus Torvalds 2005-04-16 664 int ret; ^1da177e Linus Torvalds 2005-04-16 665 unsigned int j; 9b4fce7a Jan Engelhardt 2008-10-08 666 struct xt_mtchk_param mtpar; dcea992a Jan Engelhardt 2010-02-24 667 struct xt_entry_match *ematch; ^1da177e Linus Torvalds 2005-04-16 668 a96be246 Dmitry Mishin 2006-12-12 669 ret = check_entry(e, name); a96be246 Dmitry Mishin 2006-12-12 670 if (ret) a96be246 Dmitry Mishin 2006-12-12 671 return ret; 590bdf7f Dmitry Mishin 2006-10-30 672 71ae0dff Florian Westphal 2015-06-11 673 e->counters.pcnt = xt_percpu_counter_alloc(); 71ae0dff Florian Westphal 2015-06-11 @674 if (IS_ERR_VALUE(e->counters.pcnt)) 71ae0dff Florian Westphal 2015-06-11 675 return -ENOMEM; 71ae0dff Florian Westphal 2015-06-11 676 ^1da177e Linus Torvalds 2005-04-16 677 j = 0; a83d8e8d Alexey Dobriyan 2010-01-18 678 mtpar.net = net; 9b4fce7a Jan Engelhardt 2008-10-08 679 mtpar.table = name; 9b4fce7a Jan Engelhardt 2008-10-08 680 mtpar.entryinfo = &e->ip; 9b4fce7a Jan Engelhardt 2008-10-08 681 mtpar.hook_mask = e->comefrom; 916a917d Jan Engelhardt 2008-10-08 682 mtpar.family = NFPROTO_IPV4; :::::: The code at line 674 was first introduced by commit :::::: 71ae0dff02d756e4d2ca710b79f2ff5390029a5f netfilter: xtables: use percpu rule counters :::::: TO: Florian Westphal <[email protected]> :::::: CC: Pablo Neira Ayuso <[email protected]> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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