diff mbox series

[11/22] staging: emxx_udc: Don't use GFP_DMA when calling dma_alloc_coherent()

Message ID 20220219005221.634-12-bhe@redhat.com (mailing list archive)
State New
Headers show
Series Don't use kmalloc() with GFP_DMA | expand

Commit Message

Baoquan He Feb. 19, 2022, 12:52 a.m. UTC 
dma_alloc_coherent() allocates dma buffer with device's addressing
limitation in mind. It's redundent to specify GFP_DMA when calling
dma_alloc_coherent().

[ 42.hyeyoo@gmail.com: Update changelog ]

Signed-off-by: Baoquan He <bhe@redhat.com>
Acked-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
---
 drivers/staging/media/imx/imx-media-utils.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Wolfram Sang Feb. 19, 2022, 6:51 a.m. UTC | #1 
> --- a/drivers/staging/media/imx/imx-media-utils.c

$subject says 'emxx_udc' instead of 'imx: media-utils'.
Christoph Hellwig Feb. 19, 2022, 7:09 a.m. UTC | #2 
On Sat, Feb 19, 2022 at 08:52:10AM +0800, Baoquan He wrote:
> dma_alloc_coherent() allocates dma buffer with device's addressing
> limitation in mind. It's redundent to specify GFP_DMA when calling
> dma_alloc_coherent().

Looks good:

Reviewed-by: Christoph Hellwig <hch@lst.de>
Baoquan He Feb. 20, 2022, 1:55 a.m. UTC | #3 
On 02/19/22 at 07:51am, Wolfram Sang wrote:
> 
> > --- a/drivers/staging/media/imx/imx-media-utils.c
> 
> $subject says 'emxx_udc' instead of 'imx: media-utils'.

Ah, good catch. It should be wrongly copied from the patch 12, will fix
it, thanks.
diff mbox series

Patch

diff --git a/drivers/staging/media/imx/imx-media-utils.c b/drivers/staging/media/imx/imx-media-utils.c
index 94bc866ca28c..043281ec2e9d 100644
--- a/drivers/staging/media/imx/imx-media-utils.c
+++ b/drivers/staging/media/imx/imx-media-utils.c
@@ -588,7 +588,7 @@  int imx_media_alloc_dma_buf(struct device *dev,
 
 	buf->len = PAGE_ALIGN(size);
 	buf->virt = dma_alloc_coherent(dev, buf->len, &buf->phys,
-				       GFP_DMA | GFP_KERNEL);
+				       GFP_KERNEL);
 	if (!buf->virt) {
 		dev_err(dev, "%s: failed\n", __func__);
 		return -ENOMEM;