diff options
Diffstat (limited to 'arch/arm64/include/asm/uaccess.h')
| -rw-r--r-- | arch/arm64/include/asm/uaccess.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/uaccess.h b/arch/arm64/include/asm/uaccess.h index a801a48a7972..fc0f9eb66039 100644 --- a/arch/arm64/include/asm/uaccess.h +++ b/arch/arm64/include/asm/uaccess.h @@ -350,4 +350,16 @@ extern long strncpy_from_user(char *dest, const char __user *src, long count); extern __must_check long strnlen_user(const char __user *str, long n); +#ifdef CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE +struct page; +void memcpy_page_flushcache(char *to, struct page *page, size_t offset, size_t len); +extern unsigned long __must_check __copy_user_flushcache(void *to, const void __user *from, unsigned long n); + +static inline int __copy_from_user_flushcache(void *dst, const void __user *src, unsigned size) +{ + kasan_check_write(dst, size); + return __copy_user_flushcache(dst, src, size); +} +#endif + #endif /* __ASM_UACCESS_H */ |