[PATCH] net: lan78xx: Merge memcpy + lexx_to_cpus to get_unaligned_lexx

[PATCH] net: lan78xx: Merge memcpy + lexx_to_cpus to get_unaligned_lexx

[Chuhong Yuan]

Merge the combo use of memcpy and lexx_to_cpus.
Use get_unaligned_lexx instead.
This simplifies the code.

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
---
 drivers/net/usb/lan78xx.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
index 3d92ea6fcc02..9c33b35bd155 100644
--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c
@@ -1258,8 +1258,7 @@ static void lan78xx_status(struct lan78xx_net *dev, struct urb *urb)
 		return;
 	}
 
-	memcpy(&intdata, urb->transfer_buffer, 4);
-	le32_to_cpus(&intdata);
+	intdata = get_unaligned_le32(urb->transfer_buffer);
 
 	if (intdata & INT_ENP_PHY_INT) {
 		netif_dbg(dev, link, dev->net, "PHY INTR: 0x%08x\n", intdata);
@@ -3105,16 +3104,13 @@ static int lan78xx_rx(struct lan78xx_net *dev, struct sk_buff *skb)
 		struct sk_buff *skb2;
 		unsigned char *packet;
 
-		memcpy(&rx_cmd_a, skb->data, sizeof(rx_cmd_a));
-		le32_to_cpus(&rx_cmd_a);
+		rx_cmd_a = get_unaligned_le32(skb->data);
 		skb_pull(skb, sizeof(rx_cmd_a));
 
-		memcpy(&rx_cmd_b, skb->data, sizeof(rx_cmd_b));
-		le32_to_cpus(&rx_cmd_b);
+		rx_cmd_b = get_unaligned_le32(skb->data);
 		skb_pull(skb, sizeof(rx_cmd_b));
 
-		memcpy(&rx_cmd_c, skb->data, sizeof(rx_cmd_c));
-		le16_to_cpus(&rx_cmd_c);
+		rx_cmd_c = get_unaligned_le16(skb->data);
 		skb_pull(skb, sizeof(rx_cmd_c));
 
 		packet = skb->data;
-- 
2.20.1

RE: [PATCH] net: lan78xx: Merge memcpy + lexx_to_cpus to get_unaligned_lexx

[Woojung.Huh]

> From: Chuhong Yuan <hslester96@gmail.com>
> Sent: Friday, July 19, 2019 3:36 AM
> Cc: Woojung Huh - C21699 <Woojung.Huh@microchip.com>; UNGLinuxDriver
> <UNGLinuxDriver@microchip.com>; David S . Miller <davem@davemloft.net>;
> netdev@vger.kernel.org; linux-usb@vger.kernel.org; linux-kernel@vger.kernel.org; Chuhong Yuan
> <hslester96@gmail.com>
> Subject: [PATCH] net: lan78xx: Merge memcpy + lexx_to_cpus to get_unaligned_lexx
> 
> External E-Mail
> 
> 
> Merge the combo use of memcpy and lexx_to_cpus.
> Use get_unaligned_lexx instead.
> This simplifies the code.
> 
> Signed-off-by: Chuhong Yuan <hslester96@gmail.com>

Acked-by: Woojung Huh <woojung.huh@microchip.com>

Re: [PATCH] net: lan78xx: Merge memcpy + lexx_to_cpus to get_unaligned_lexx

[David Miller]

From: Chuhong Yuan <hslester96@gmail.com>
Date: Fri, 19 Jul 2019 15:36:15 +0800

> Merge the combo use of memcpy and lexx_to_cpus.
> Use get_unaligned_lexx instead.
> This simplifies the code.
> 
> Signed-off-by: Chuhong Yuan <hslester96@gmail.com>

Applied.