Hi Al, [auto build test WARNING on linus/master] [also build test WARNING on v4.12-rc1 next-20170515] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Al-Viro/move-compat-wait4-and-waitid-next-to-native-variants/20170516-084127 config: powerpc-allmodconfig (attached as .config) compiler: powerpc64-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705 reproduce: wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=powerpc All warnings (new ones prefixed by >>): In file included from include/asm-generic/bug.h:4:0, from arch/powerpc/include/asm/bug.h:127, from include/linux/bug.h:4, from include/linux/mmdebug.h:4, from include/linux/mm.h:8, from kernel/exit.c:7: kernel/exit.c: In function 'C_SYSC_waitid': kernel/exit.c:1746:38: error: 'infop' undeclared (first use in this function) unsafe_put_user(err ? 0 : SIGCHLD, &infop->si_signo, Efault); ^ include/linux/compiler.h:179:42: note: in definition of macro 'unlikely' # define unlikely(x) __builtin_expect(!!(x), 0) ^ >> arch/powerpc/include/asm/uaccess.h:86:2: note: in expansion of macro >> '__put_user_nocheck' __put_user_nocheck((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr))) ^~~~~~~~~~~~~~~~~~ include/linux/uaccess.h:302:56: note: in expansion of macro '__put_user' #define unsafe_put_user(x, ptr, err) do { if (unlikely(__put_user(x, ptr))) goto err; } while (0) ^~~~~~~~~~ kernel/exit.c:1746:2: note: in expansion of macro 'unsafe_put_user' unsafe_put_user(err ? 0 : SIGCHLD, &infop->si_signo, Efault); ^~~~~~~~~~~~~~~ kernel/exit.c:1746:38: note: each undeclared identifier is reported only once for each function it appears in unsafe_put_user(err ? 0 : SIGCHLD, &infop->si_signo, Efault); ^ include/linux/compiler.h:179:42: note: in definition of macro 'unlikely' # define unlikely(x) __builtin_expect(!!(x), 0) ^ >> arch/powerpc/include/asm/uaccess.h:86:2: note: in expansion of macro >> '__put_user_nocheck' __put_user_nocheck((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr))) ^~~~~~~~~~~~~~~~~~ include/linux/uaccess.h:302:56: note: in expansion of macro '__put_user' #define unsafe_put_user(x, ptr, err) do { if (unlikely(__put_user(x, ptr))) goto err; } while (0) ^~~~~~~~~~ kernel/exit.c:1746:2: note: in expansion of macro 'unsafe_put_user' unsafe_put_user(err ? 0 : SIGCHLD, &infop->si_signo, Efault); ^~~~~~~~~~~~~~~ vim +/__put_user_nocheck +86 arch/powerpc/include/asm/uaccess.h 2df5e8bc include/asm-powerpc/uaccess.h Stephen Rothwell 2005-10-29 70 * with a separate "access_ok()" call (this is used when we do multiple 2df5e8bc include/asm-powerpc/uaccess.h Stephen Rothwell 2005-10-29 71 * accesses to the same area of user memory). 2df5e8bc include/asm-powerpc/uaccess.h Stephen Rothwell 2005-10-29 72 * 2df5e8bc include/asm-powerpc/uaccess.h Stephen Rothwell 2005-10-29 73 * As we use the same address space for kernel and user data on the 2df5e8bc include/asm-powerpc/uaccess.h Stephen Rothwell 2005-10-29 74 * PowerPC, we can just do these as direct assignments. (Of course, the 2df5e8bc include/asm-powerpc/uaccess.h Stephen Rothwell 2005-10-29 75 * exception handling means that it's no longer "just"...) 2df5e8bc include/asm-powerpc/uaccess.h Stephen Rothwell 2005-10-29 76 * 2df5e8bc include/asm-powerpc/uaccess.h Stephen Rothwell 2005-10-29 77 */ 2df5e8bc include/asm-powerpc/uaccess.h Stephen Rothwell 2005-10-29 78 #define get_user(x, ptr) \ 2df5e8bc include/asm-powerpc/uaccess.h Stephen Rothwell 2005-10-29 79 __get_user_check((x), (ptr), sizeof(*(ptr))) 2df5e8bc include/asm-powerpc/uaccess.h Stephen Rothwell 2005-10-29 80 #define put_user(x, ptr) \ 2df5e8bc include/asm-powerpc/uaccess.h Stephen Rothwell 2005-10-29 81 __put_user_check((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr))) 2df5e8bc include/asm-powerpc/uaccess.h Stephen Rothwell 2005-10-29 82 2df5e8bc include/asm-powerpc/uaccess.h Stephen Rothwell 2005-10-29 83 #define __get_user(x, ptr) \ 2df5e8bc include/asm-powerpc/uaccess.h Stephen Rothwell 2005-10-29 84 __get_user_nocheck((x), (ptr), sizeof(*(ptr))) 2df5e8bc include/asm-powerpc/uaccess.h Stephen Rothwell 2005-10-29 85 #define __put_user(x, ptr) \ 2df5e8bc include/asm-powerpc/uaccess.h Stephen Rothwell 2005-10-29 @86 __put_user_nocheck((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr))) e68c825b include/asm-powerpc/uaccess.h Benjamin Herrenschmidt 2007-04-11 87 e68c825b include/asm-powerpc/uaccess.h Benjamin Herrenschmidt 2007-04-11 88 #define __get_user_inatomic(x, ptr) \ e68c825b include/asm-powerpc/uaccess.h Benjamin Herrenschmidt 2007-04-11 89 __get_user_nosleep((x), (ptr), sizeof(*(ptr))) e68c825b include/asm-powerpc/uaccess.h Benjamin Herrenschmidt 2007-04-11 90 #define __put_user_inatomic(x, ptr) \ e68c825b include/asm-powerpc/uaccess.h Benjamin Herrenschmidt 2007-04-11 91 __put_user_nosleep((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr))) e68c825b include/asm-powerpc/uaccess.h Benjamin Herrenschmidt 2007-04-11 92 2df5e8bc include/asm-powerpc/uaccess.h Stephen Rothwell 2005-10-29 93 #define __get_user_unaligned __get_user 2df5e8bc include/asm-powerpc/uaccess.h Stephen Rothwell 2005-10-29 94 #define __put_user_unaligned __put_user :::::: The code at line 86 was first introduced by commit :::::: 2df5e8bcca53e528a78ee0e3b114d0d21dd6d043 powerpc: merge uaccess.h :::::: TO: Stephen Rothwell <s...@canb.auug.org.au> :::::: CC: Stephen Rothwell <s...@canb.auug.org.au> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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