From 4852a80524937db8215406cf2b2431b14f320000 Mon Sep 17 00:00:00 2001 From: ZhangPeng Date: Thu, 27 Jul 2023 09:16:11 +0800 Subject: mm: kmsan: use helper macro offset_in_page() Use helper macro offset_in_page() to improve code readability. No functional modification involved. Link: https://lkml.kernel.org/r/20230727011612.2721843-3-zhangpeng362@huawei.com Signed-off-by: ZhangPeng Reviewed-by: Alexander Potapenko Cc: Dmitry Vyukov Cc: Kefeng Wang Cc: Marco Elver Cc: Nanyong Sun Signed-off-by: Andrew Morton --- mm/kmsan/hooks.c | 2 +- mm/kmsan/shadow.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'mm/kmsan') diff --git a/mm/kmsan/hooks.c b/mm/kmsan/hooks.c index 4e3c3e60ba97..5d6e2dee5692 100644 --- a/mm/kmsan/hooks.c +++ b/mm/kmsan/hooks.c @@ -339,7 +339,7 @@ void kmsan_handle_dma(struct page *page, size_t offset, size_t size, * internal KMSAN checks. */ while (size > 0) { - page_offset = addr % PAGE_SIZE; + page_offset = offset_in_page(addr); to_go = min(PAGE_SIZE - page_offset, (u64)size); kmsan_handle_dma_page((void *)addr, to_go, dir); addr += to_go; diff --git a/mm/kmsan/shadow.c b/mm/kmsan/shadow.c index c7de991f6d7f..966994268a01 100644 --- a/mm/kmsan/shadow.c +++ b/mm/kmsan/shadow.c @@ -145,7 +145,7 @@ void *kmsan_get_metadata(void *address, bool is_origin) return NULL; if (!page_has_metadata(page)) return NULL; - off = addr % PAGE_SIZE; + off = offset_in_page(addr); return (is_origin ? origin_ptr_for(page) : shadow_ptr_for(page)) + off; } -- cgit v1.2.3-70-g09d2