Messages in this thread Patch in this message | | | From | "Aneesh Kumar K.V" <> | Subject | [PATCH V2 06/10] kasan: Allow arch to overrride kasan shadow offsets | Date | Wed, 26 Aug 2015 13:56:14 +0530 |
| |
Some archs may want to provide kasan shadow memory as a constant offset from the address. Such arch even though cannot use inline kasan support, they can work with outofline kasan support.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> --- include/linux/kasan.h | 3 +++ mm/kasan/kasan.h | 3 +++ 2 files changed, 6 insertions(+)
diff --git a/include/linux/kasan.h b/include/linux/kasan.h index 5486d777b706..e458ca64cdaf 100644 --- a/include/linux/kasan.h +++ b/include/linux/kasan.h @@ -15,11 +15,14 @@ struct vm_struct; #include <asm/kasan.h> #include <linux/sched.h> +#ifndef kasan_mem_to_shadow static inline void *kasan_mem_to_shadow(const void *addr) { return (void *)((unsigned long)addr >> KASAN_SHADOW_SCALE_SHIFT) + KASAN_SHADOW_OFFSET; } +#define kasan_mem_to_shadow kasan_mem_to_shadow +#endif /* Enable reporting bugs after kasan_disable_current() */ static inline void kasan_enable_current(void) diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h index deb547d5a916..c0686f2b1224 100644 --- a/mm/kasan/kasan.h +++ b/mm/kasan/kasan.h @@ -57,11 +57,14 @@ struct kasan_global { void kasan_report_error(struct kasan_access_info *info); void kasan_report_user_access(struct kasan_access_info *info); +#ifndef kasan_shadow_to_mem static inline const void *kasan_shadow_to_mem(const void *shadow_addr) { return (void *)(((unsigned long)shadow_addr - KASAN_SHADOW_OFFSET) << KASAN_SHADOW_SCALE_SHIFT); } +#define kasan_shadow_to_mem kasan_shadow_to_mem +#endif static inline bool kasan_report_enabled(void) { -- 2.5.0
| |