usbnet: smsc75xx: Merge memcpy + le32_to_cpus to get_unaligned_le32

Commit Message

Chuhong Yuan July 19, 2019, 8:27 a.m. UTC

Merge the combo use of memcpy and le32_to_cpus.
Use get_unaligned_le32 instead.
This simplifies the code.

Signed-off-by: Chuhong Yuan <[e-mail]>
---
 drivers/net/usb/smsc75xx.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

Comments

David Miller July 22, 2019, 7:13 p.m. UTC | #1

From: Chuhong Yuan <[e-mail]>
Date: Fri, 19 Jul 2019 16:27:31 +0800

> Merge the combo use of memcpy and le32_to_cpus.
> Use get_unaligned_le32 instead.
> This simplifies the code.
> 
> Signed-off-by: Chuhong Yuan <[e-mail]>

Applied.

Patch

diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c
index 1417a22962a1..7fac9db5380d 100644
--- a/drivers/net/usb/smsc75xx.c
+++ b/drivers/net/usb/smsc75xx.c
@@ -661,8 +661,7 @@  static void smsc75xx_status(struct usbnet *dev, struct urb *urb)
 		return;
 	}
 
-	memcpy(&intdata, urb->transfer_buffer, 4);
-	le32_to_cpus(&intdata);
+	intdata = get_unaligned_le32(urb->transfer_buffer);
 
 	netif_dbg(dev, link, dev->net, "intdata: 0x%08X\n", intdata);
 
@@ -2181,12 +2180,10 @@  static int smsc75xx_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
 		struct sk_buff *ax_skb;
 		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, 4);
 
-		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, 4 + RXW_PADDING);
 
 		packet = skb->data;