tree: https://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma.git k.o/for-4.11 head: c5540a0195ec65e2ab9fcc4bde958db2cc66550c commit: 43553b47c3124e7f4a9f115cff9db513b35a5e0a [15/22] IB/rxe: Issue warnings once config: i386-randconfig-c0-01121610 (attached as .config) compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4 reproduce: git checkout 43553b47c3124e7f4a9f115cff9db513b35a5e0a # save the attached .config to linux build tree make ARCH=i386 All error/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/linux/list.h:4, from include/linux/module.h:9, from drivers/infiniband/sw/rxe/rxe.h:42, from drivers/infiniband/sw/rxe/rxe_mr.c:34: drivers/infiniband/sw/rxe/rxe_mr.c: In function 'rxe_mem_alloc.isra.3': >> include/linux/compiler.h:518:38: error: call to '__compiletime_assert_126' declared with attribute error: BUILD_BUG_ON failed: !is_power_of_2(RXE_BUF_PER_MAP) _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__) ^ include/linux/compiler.h:501:4: note: in definition of macro '__compiletime_assert' prefix ## suffix(); \ ^ include/linux/compiler.h:518:2: note: in expansion of macro '_compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__) ^ include/linux/bug.h:54:37: note: in expansion of macro 'compiletime_assert' #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) ^ include/linux/bug.h:78:2: note: in expansion of macro 'BUILD_BUG_ON_MSG' BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition) ^ >> drivers/infiniband/sw/rxe/rxe_mr.c:126:2: note: in expansion of macro 'BUILD_BUG_ON' BUILD_BUG_ON(!is_power_of_2(RXE_BUF_PER_MAP)); ^ vim +/__compiletime_assert_126 +518 include/linux/compiler.h 9a8ab1c3 Daniel Santos 2013-02-21 512 * 9a8ab1c3 Daniel Santos 2013-02-21 513 * In tradition of POSIX assert, this macro will break the build if the 9a8ab1c3 Daniel Santos 2013-02-21 514 * supplied condition is *false*, emitting the supplied error message if the 9a8ab1c3 Daniel Santos 2013-02-21 515 * compiler has support to do so. 9a8ab1c3 Daniel Santos 2013-02-21 516 */ 9a8ab1c3 Daniel Santos 2013-02-21 517 #define compiletime_assert(condition, msg) \ 9a8ab1c3 Daniel Santos 2013-02-21 @518 _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__) 9a8ab1c3 Daniel Santos 2013-02-21 519 47933ad4 Peter Zijlstra 2013-11-06 520 #define compiletime_assert_atomic_type(t) \ 47933ad4 Peter Zijlstra 2013-11-06 521 compiletime_assert(__native_word(t), \ :::::: The code at line 518 was first introduced by commit :::::: 9a8ab1c39970a4938a72d94e6fd13be88a797590 bug.h, compiler.h: introduce compiletime_assert & BUILD_BUG_ON_MSG :::::: TO: Daniel Santos <daniel.santos@xxxxxxxxx> :::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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