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: mips-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=mips All errors (new ones prefixed by >>): arch/mips/kernel/vdso.c: In function 'arch_setup_additional_pages': >> arch/mips/kernel/vdso.c:107:6: 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 +107 arch/mips/kernel/vdso.c 101 struct mm_struct *mm = current->mm; 102 unsigned long gic_size, vvar_size, size, base, data_addr, vdso_addr; 103 struct vm_area_struct *vma; 104 struct resource gic_res; 105 int ret; 106 > 107 if (down_write_killable(&mm->mmap_sem)) 108 return -EINTR; 109 110 /* --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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