* [PATCH] udmabuf: set read/write flag when exporting
@ 2018-11-14 12:20 Gerd Hoffmann
2018-11-16 1:46 ` Gurchetan Singh
0 siblings, 1 reply; 3+ messages in thread
From: Gerd Hoffmann @ 2018-11-14 12:20 UTC (permalink / raw)
To: dri-devel
Cc: gurchetansingh, Gerd Hoffmann, Sumit Semwal,
open list:DMA BUFFER SHARING FRAMEWORK,
moderated list:DMA BUFFER SHARING FRAMEWORK, open list
Otherwise, mmap fails when done with PROT_WRITE.
Suggested-by: Gurchetan Singh <gurchetansingh@chromium.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
drivers/dma-buf/udmabuf.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/dma-buf/udmabuf.c b/drivers/dma-buf/udmabuf.c
index e70328ab7e..d9ff246093 100644
--- a/drivers/dma-buf/udmabuf.c
+++ b/drivers/dma-buf/udmabuf.c
@@ -189,6 +189,7 @@ static long udmabuf_create(const struct udmabuf_create_list *head,
exp_info.ops = &udmabuf_ops;
exp_info.size = ubuf->pagecount << PAGE_SHIFT;
exp_info.priv = ubuf;
+ exp_info.flags = O_RDWR;
buf = dma_buf_export(&exp_info);
if (IS_ERR(buf)) {
--
2.9.3
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] udmabuf: set read/write flag when exporting
2018-11-14 12:20 [PATCH] udmabuf: set read/write flag when exporting Gerd Hoffmann
@ 2018-11-16 1:46 ` Gurchetan Singh
2018-11-16 7:52 ` Gerd Hoffmann
0 siblings, 1 reply; 3+ messages in thread
From: Gurchetan Singh @ 2018-11-16 1:46 UTC (permalink / raw)
To: Gerd Hoffmann
Cc: ML dri-devel, sumit.semwal, linux-media, linaro-mm-sig, linux-kernel
Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>
Tested-by: Gurchetan Singh <gurchetansingh@chromium.org>
On Wed, Nov 14, 2018 at 4:20 AM Gerd Hoffmann <kraxel@redhat.com> wrote:
>
> Otherwise, mmap fails when done with PROT_WRITE.
>
> Suggested-by: Gurchetan Singh <gurchetansingh@chromium.org>
> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
> ---
> drivers/dma-buf/udmabuf.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/dma-buf/udmabuf.c b/drivers/dma-buf/udmabuf.c
> index e70328ab7e..d9ff246093 100644
> --- a/drivers/dma-buf/udmabuf.c
> +++ b/drivers/dma-buf/udmabuf.c
> @@ -189,6 +189,7 @@ static long udmabuf_create(const struct udmabuf_create_list *head,
> exp_info.ops = &udmabuf_ops;
> exp_info.size = ubuf->pagecount << PAGE_SHIFT;
> exp_info.priv = ubuf;
> + exp_info.flags = O_RDWR;
>
> buf = dma_buf_export(&exp_info);
> if (IS_ERR(buf)) {
> --
> 2.9.3
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] udmabuf: set read/write flag when exporting
2018-11-16 1:46 ` Gurchetan Singh
@ 2018-11-16 7:52 ` Gerd Hoffmann
0 siblings, 0 replies; 3+ messages in thread
From: Gerd Hoffmann @ 2018-11-16 7:52 UTC (permalink / raw)
To: Gurchetan Singh
Cc: ML dri-devel, sumit.semwal, linux-media, linaro-mm-sig, linux-kernel
On Thu, Nov 15, 2018 at 05:46:30PM -0800, Gurchetan Singh wrote:
> Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>
> Tested-by: Gurchetan Singh <gurchetansingh@chromium.org>
Thanks. Pushed to drm-misc-fixes.
cheers,
Gerd
^ permalink raw reply [flat|nested] 3+ messages in thread
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2018-11-16 1:46 ` Gurchetan Singh
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