From 606be04724b6003bd00038c43eb9e1ae5e9c0993 Mon Sep 17 00:00:00 2001 From: Bhanusree Date: Thu, 24 Oct 2019 09:58:33 +0530 Subject: drm/gpu: Add comment for memory barrier -Add comment for memory barrier -Issue found using checkpatch.pl Signed-off-by: Bhanusree Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/1571891313-14341-1-git-send-email-bhanusreemahesh@gmail.com --- drivers/gpu/drm/drm_cache.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/gpu/drm/drm_cache.c') diff --git a/drivers/gpu/drm/drm_cache.c b/drivers/gpu/drm/drm_cache.c index 3bd76e918b5d..e574261f6bc3 100644 --- a/drivers/gpu/drm/drm_cache.c +++ b/drivers/gpu/drm/drm_cache.c @@ -62,10 +62,10 @@ static void drm_cache_flush_clflush(struct page *pages[], { unsigned long i; - mb(); + mb(); /*Full memory barrier used before so that CLFLUSH is ordered*/ for (i = 0; i < num_pages; i++) drm_clflush_page(*pages++); - mb(); + mb(); /*Also used after CLFLUSH so that all cache is flushed*/ } #endif -- cgit v1.2.3