Hi Michal, [auto build test ERROR on next-20160229] [also build test ERROR on v4.5-rc6] [cannot apply to drm/drm-next drm-intel/for-linux-next v4.5-rc6 v4.5-rc5 v4.5-rc4] [if your patch is applied to the wrong git tree, please drop us a note to help improving the system] url: https://github.com/0day-ci/linux/commits/Michal-Hocko/change-mmap_sem-taken-for-write-killable/20160229-213258 config: s390-allyesconfig (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=s390 All errors (new ones prefixed by >>): arch/s390/kernel/vdso.c: In function 'arch_setup_additional_pages': >> arch/s390/kernel/vdso.c:219:2: error: implicit declaration of function 'down_write_killable' [-Werror=implicit-function-declaration] if (down_write_killable(&mm->mmap_sem)) ^ cc1: some warnings being treated as errors vim +/down_write_killable +219 arch/s390/kernel/vdso.c 213 214 /* 215 * pick a base address for the vDSO in process space. We try to put 216 * it at vdso_base which is the "natural" base for it, but we might 217 * fail and end up putting it elsewhere. 218 */ > 219 if (down_write_killable(&mm->mmap_sem)) 220 return -EINTR; 221 vdso_base = get_unmapped_area(NULL, 0, vdso_pages << PAGE_SHIFT, 0, 0); 222 if (IS_ERR_VALUE(vdso_base)) { --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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