>-----Original Message-----
>From: Dave Airlie <airlied@xxxxxxxxx>
>Sent: Wednesday, March 10, 2021 11:35 PM
>To: dri-devel@xxxxxxxxxxxxxxxxxxxxx
>Cc: Ruhl, Michael J <michael.j.ruhl@xxxxxxxxx>; skeggsb@xxxxxxxxx
>Subject: [PATCH] drm/nouveau: fix dma syncing for loops (v2)
>
>From: Dave Airlie <airlied@xxxxxxxxxx>
>
>The index variable should only be increased in one place.
>
>Noticed this while trying to track down another oops.
>
>v2: use while loop.
Ok, that makes it more obvious for me.
Thanks.
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@xxxxxxxxx>
M
>Fixes: f295c8cfec83 ("drm/nouveau: fix dma syncing warning with debugging
>on.")
>Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx>
>---
> 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
_______________________________________________
dri-devel mailing list
dri-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/dri-devel
