From: Fang Lijun <fanglijun3@huawei.com> ascend inclusion category: bugfix bugzilla: NA CVE: NA ------------ The pud_page is not defined in asm/pgtable-2level.h, when we use it by disabling CONFIG_ARM_LPAE. So this cause compile error like this: mm/vmalloc.c: In function 'vmalloc_to_page': include/asm-generic/pgtable-nop4d-hack.h:48:27: error: implicit declaration of function 'pud_page'; did you mean 'put_page'? [-Werror=implicit-function-declaration] ^~~~~~~~ Fixes: e02c5b9bddda ("mm/vmalloc: fix vmalloc_to_page for huge vmap mappings") Signed-off-by: Fang Lijun <fanglijun3@huawei.com> Reviewed-by: Ding Tianhong <dingtianhong@huawei.com> Reviewed-by: Hanjun Guo <guohanjun@huawei.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> --- arch/arm/include/asm/pgtable-2level.h | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/include/asm/pgtable-2level.h b/arch/arm/include/asm/pgtable-2level.h index 12659ce5c1f38..3d3103ff6e14d 100644 --- a/arch/arm/include/asm/pgtable-2level.h +++ b/arch/arm/include/asm/pgtable-2level.h @@ -191,6 +191,7 @@ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long addr) return (pmd_t *)pud; } +#define pud_page(pud) NULL #define pmd_large(pmd) (pmd_val(pmd) & 2) #define pmd_bad(pmd) (pmd_val(pmd) & 2) #define pmd_present(pmd) (pmd_val(pmd)) -- 2.25.1