[U-Boot] [PATCH v5 01/19] net: smsc95xx: Correct free_pkt() implementation

[Simon Glass]

On further review this returns the wrong packet length from the driver.
It may not be noticed since protocols will take care of it. Fix it by
subtracting the header length from the packet length returned.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

Changes in v5:
- Add new patch for smsc95xx to correct free_pkt() implementation

Changes in v4: None
Changes in v3: None

 drivers/usb/eth/smsc95xx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/eth/smsc95xx.c b/drivers/usb/eth/smsc95xx.c
index d4c8ea4a98..26000a5a45 100644
--- a/drivers/usb/eth/smsc95xx.c
+++ b/drivers/usb/eth/smsc95xx.c
@@ -998,7 +998,7 @@ int smsc95xx_eth_recv(struct udevice *dev, int flags, uchar **packetp)
 	}
 
 	*packetp = ptr + sizeof(packet_len);
-	return packet_len;
+	return packet_len - 4;
 
 err:
 	usb_ether_advance_rxbuf(ueth, -1);
@@ -1009,7 +1009,7 @@ static int smsc95xx_free_pkt(struct udevice *dev, uchar *packet, int packet_len)
 {
 	struct smsc95xx_private *priv = dev_get_priv(dev);
 
-	packet_len = ALIGN(packet_len, 4);
+	packet_len = ALIGN(packet_len + sizeof(u32), 4);
 	usb_ether_advance_rxbuf(&priv->ueth, sizeof(u32) + packet_len);
 
 	return 0;
-- 
2.12.2.564.g063fe858b8-goog