On Thu, 21 Apr 2022 18:34:32 +0800 kernel test robot <lkp@xxxxxxxxx> wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master > head: 65eb92e4c9f0a962656f131521f4fbc0d24c9d4c > commit: 92393159862dde44e440892eb43ca48dc8c924c3 [5135/5346] fixup! mm/hugetlb: Only drop uffd-wp special pte if required > config: i386-randconfig-m021 (https://download.01.org/0day-ci/archive/20220421/202204211854.p1LJEBHt-lkp@xxxxxxxxx/config) > compiler: gcc-11 (Debian 11.2.0-20) 11.2.0 > reproduce (this is a W=1 build): > # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=92393159862dde44e440892eb43ca48dc8c924c3 > git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git > git fetch --no-tags linux-next master > git checkout 92393159862dde44e440892eb43ca48dc8c924c3 > # save the config file > mkdir build_dir && cp config build_dir/.config > make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/virt/nitro_enclaves/ > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp@xxxxxxxxx> > > All errors (new ones prefixed by >>): > > In file included from drivers/virt/nitro_enclaves/ne_misc_dev.c:16: > >> include/linux/hugetlb.h:411:25: error: unknown type name 'zap_flags_t'; did you mean 'vm_flags_t'? Thanks. I could include mm.h in drivers/virt/nitro_enclaves/ne_misc_dev.c, but hugetlb.h should be standalone and I don't know what including mm.h from hugetlb.h will do. I'll test this instead: --- a/include/linux/hugetlb.h~mm-hugetlb-only-drop-uffd-wp-special-pte-if-required-fix-fix +++ a/include/linux/hugetlb.h @@ -1124,4 +1124,14 @@ bool want_pmd_share(struct vm_area_struc #define flush_hugetlb_tlb_range(vma, addr, end) flush_tlb_range(vma, addr, end) #endif +typedef unsigned int __bitwise zap_flags_t; + +/* + * Whether to drop the pte markers, for example, the uffd-wp information for + * file-backed memory. This should only be specified when we will completely + * drop the page in the mm, either by truncation or unmapping of the vma. By + * default, the flag is not set. + */ +#define ZAP_FLAG_DROP_MARKER ((__force zap_flags_t) BIT(0)) + #endif /* _LINUX_HUGETLB_H */ --- a/include/linux/mm.h~mm-hugetlb-only-drop-uffd-wp-special-pte-if-required-fix-fix +++ a/include/linux/mm.h @@ -3431,14 +3431,4 @@ madvise_set_anon_name(struct mm_struct * } #endif -typedef unsigned int __bitwise zap_flags_t; - -/* - * Whether to drop the pte markers, for example, the uffd-wp information for - * file-backed memory. This should only be specified when we will completely - * drop the page in the mm, either by truncation or unmapping of the vma. By - * default, the flag is not set. - */ -#define ZAP_FLAG_DROP_MARKER ((__force zap_flags_t) BIT(0)) - #endif /* _LINUX_MM_H */ _
