From: Dave Airlie <airlied@gmail.com>
To: dri-devel@lists.freedesktop.org
Cc: michael.j.ruhl@intel.com, skeggsb@gmail.com
Subject: [PATCH] drm/nouveau: fix dma syncing for loops (v2)
Date: Thu, 11 Mar 2021 14:35:27 +1000 [thread overview]
Message-ID: <20210311043527.5376-1-airlied@gmail.com> (raw)
From: Dave Airlie <airlied@redhat.com>
The index variable should only be increased in one place.
Noticed this while trying to track down another oops.
v2: use while loop.
Fixes: f295c8cfec83 ("drm/nouveau: fix dma syncing warning with debugging on.")
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
drivers/gpu/drm/nouveau/nouveau_bo.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index 2375711877cf..fabb314a0b2f 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -556,7 +556,8 @@ nouveau_bo_sync_for_device(struct nouveau_bo *nvbo)
if (nvbo->force_coherent)
return;
- for (i = 0; i < ttm_dma->num_pages; ++i) {
+ i = 0;
+ while (i < ttm_dma->num_pages) {
struct page *p = ttm_dma->pages[i];
size_t num_pages = 1;
@@ -587,7 +588,8 @@ nouveau_bo_sync_for_cpu(struct nouveau_bo *nvbo)
if (nvbo->force_coherent)
return;
- for (i = 0; i < ttm_dma->num_pages; ++i) {
+ i = 0;
+ while (i < ttm_dma->num_pages) {
struct page *p = ttm_dma->pages[i];
size_t num_pages = 1;
--
2.27.0
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next reply other threads:[~2021-03-11 4:35 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-11 4:35 Dave Airlie [this message]
2021-03-11 12:42 ` [PATCH] drm/nouveau: fix dma syncing for loops (v2) Ruhl, Michael J
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