diff mbox series

[15/22] usb: cdns3: Don't use GFP_DMA32 when calling dma_pool_alloc()

Message ID 20220219005221.634-16-bhe@redhat.com (mailing list archive)
State Not Applicable
Delegated to: Herbert Xu
Headers show
Series Don't use kmalloc() with GFP_DMA | expand

Commit Message

Baoquan He Feb. 19, 2022, 12:52 a.m. UTC 
dma_pool_alloc() uses dma_alloc_coherent() to pre-allocate DMA buffer,
so it's redundent to specify GFP_DMA32 when calling.

Signed-off-by: Baoquan He <bhe@redhat.com>
---
 drivers/usb/cdns3/cdns3-gadget.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Christoph Hellwig Feb. 19, 2022, 7:13 a.m. UTC | #1 
On Sat, Feb 19, 2022 at 08:52:14AM +0800, Baoquan He wrote:
> dma_pool_alloc() uses dma_alloc_coherent() to pre-allocate DMA buffer,
> so it's redundent to specify GFP_DMA32 when calling.

Looks good,

Reviewed-by: Christoph Hellwig <hch@lst.de>
diff mbox series

Patch

diff --git a/drivers/usb/cdns3/cdns3-gadget.c b/drivers/usb/cdns3/cdns3-gadget.c
index c0937d3d663f..6afac25ff2c7 100644
--- a/drivers/usb/cdns3/cdns3-gadget.c
+++ b/drivers/usb/cdns3/cdns3-gadget.c
@@ -220,7 +220,7 @@  int cdns3_allocate_trb_pool(struct cdns3_endpoint *priv_ep)
 
 	if (!priv_ep->trb_pool) {
 		priv_ep->trb_pool = dma_pool_alloc(priv_dev->eps_dma_pool,
-						   GFP_DMA32 | GFP_ATOMIC,
+						   GFP_ATOMIC,
 						   &priv_ep->trb_pool_dma);
 
 		if (!priv_ep->trb_pool)