[PATCH v4 13/35] kmsan: Use ALIGN_DOWN() in kmsan_get_metadata()

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Improve the readability by replacing the custom aligning logic with
ALIGN_DOWN(). Unlike other places where a similar sequence is used,
there is no size parameter that needs to be adjusted, so the standard
macro fits.

Reviewed-by: Alexander Potapenko <glider@xxxxxxxxxx>
Signed-off-by: Ilya Leoshkevich <iii@xxxxxxxxxxxxx>
---
 mm/kmsan/shadow.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/mm/kmsan/shadow.c b/mm/kmsan/shadow.c
index 2d57408c78ae..9c58f081d84f 100644
--- a/mm/kmsan/shadow.c
+++ b/mm/kmsan/shadow.c
@@ -123,14 +123,12 @@ struct shadow_origin_ptr kmsan_get_shadow_origin_ptr(void *address, u64 size,
  */
 void *kmsan_get_metadata(void *address, bool is_origin)
 {
-	u64 addr = (u64)address, pad, off;
+	u64 addr = (u64)address, off;
 	struct page *page;
 	void *ret;
 
-	if (is_origin && !IS_ALIGNED(addr, KMSAN_ORIGIN_SIZE)) {
-		pad = addr % KMSAN_ORIGIN_SIZE;
-		addr -= pad;
-	}
+	if (is_origin)
+		addr = ALIGN_DOWN(addr, KMSAN_ORIGIN_SIZE);
 	address = (void *)addr;
 	if (kmsan_internal_is_vmalloc_addr(address) ||
 	    kmsan_internal_is_module_addr(address))
-- 
2.45.1





[Index of Archives]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [IETF Annouce]     [Bugtraq]     [Linux OMAP]     [Linux MIPS]     [eCos]     [Asterisk Internet PBX]     [Linux API]

  Powered by Linux