diff mbox series

[10/10] net: ethernet: ixp4xx: Use parent dev for DMA pool

Message ID 20191021000824.531-11-linus.walleij@linaro.org
State Changes Requested
Delegated to: David Miller
Headers show
Series IXP4xx networking cleanups | expand

Commit Message

Linus Walleij Oct. 21, 2019, 12:08 a.m. UTC
Use the netdevice struct device .parent field when calling
dma_pool_create(): the .dma_coherent_mask and .dma_mask
pertains to the bus device on the hardware (platform)
bus in this case, not the struct device inside the network
device. This makes the pool allocation work.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/net/ethernet/xscale/ixp4xx_eth.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Arnd Bergmann Oct. 21, 2019, 10:27 a.m. UTC | #1
On Mon, Oct 21, 2019 at 2:10 AM Linus Walleij <linus.walleij@linaro.org> wrote:
>
> Use the netdevice struct device .parent field when calling
> dma_pool_create(): the .dma_coherent_mask and .dma_mask
> pertains to the bus device on the hardware (platform)
> bus in this case, not the struct device inside the network
> device. This makes the pool allocation work.
>
> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Has this always been broken, or can you identify when it stopped
working? It might be a candidate for stable backports.

> ---
>  drivers/net/ethernet/xscale/ixp4xx_eth.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/ethernet/xscale/ixp4xx_eth.c b/drivers/net/ethernet/xscale/ixp4xx_eth.c
> index 0996046bd046..3ee6d7232eb9 100644
> --- a/drivers/net/ethernet/xscale/ixp4xx_eth.c
> +++ b/drivers/net/ethernet/xscale/ixp4xx_eth.c
> @@ -1090,7 +1090,7 @@ static int init_queues(struct port *port)
>         int i;
>
>         if (!ports_open) {
> -               dma_pool = dma_pool_create(DRV_NAME, &port->netdev->dev,
> +               dma_pool = dma_pool_create(DRV_NAME, port->netdev->dev.parent,
>                                            POOL_ALLOC_SIZE, 32, 0);
>                 if (!dma_pool)
>                         return -ENOMEM;
> --
> 2.21.0
>
diff mbox series

Patch

diff --git a/drivers/net/ethernet/xscale/ixp4xx_eth.c b/drivers/net/ethernet/xscale/ixp4xx_eth.c
index 0996046bd046..3ee6d7232eb9 100644
--- a/drivers/net/ethernet/xscale/ixp4xx_eth.c
+++ b/drivers/net/ethernet/xscale/ixp4xx_eth.c
@@ -1090,7 +1090,7 @@  static int init_queues(struct port *port)
 	int i;
 
 	if (!ports_open) {
-		dma_pool = dma_pool_create(DRV_NAME, &port->netdev->dev,
+		dma_pool = dma_pool_create(DRV_NAME, port->netdev->dev.parent,
 					   POOL_ALLOC_SIZE, 32, 0);
 		if (!dma_pool)
 			return -ENOMEM;