From: Nisar Sayed <Nisar.Sayed@microchip.com>
Date: Tue, 1 Aug 2017 10:24:33 +0000
Subject: lan78xx: Fix to handle hard_header_len update
Patch-mainline: v4.13-rc5
Git-commit: 0573f94b1abfb42952275ca67f665dbd720b00d7
References: bsc#1084332
Fix to handle hard_header_len update
When ifconfig up/down sequence is initiated hard_header_len
get updated incrementally for each ifconfig up /down sequence,
this leads invalid hard_header_len, moving to lan78xx_bind
to have one time update of hard_header_len addresses the issue.
Signed-off-by: Nisar Sayed <Nisar.Sayed@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Alexander Graf <agraf@suse.de>
---
drivers/net/usb/lan78xx.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c
@@ -2367,9 +2367,6 @@
/* Init LTM */
lan78xx_init_ltm(dev);
- dev->net->hard_header_len += TX_OVERHEAD;
- dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;
-
if (dev->udev->speed == USB_SPEED_SUPER) {
buf = DEFAULT_BURST_CAP_SIZE / SS_USB_PKT_SIZE;
dev->rx_urb_size = DEFAULT_BURST_CAP_SIZE;
@@ -2855,6 +2852,9 @@
return ret;
}
+ dev->net->hard_header_len += TX_OVERHEAD;
+ dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;
+
/* Init all registers */
ret = lan78xx_reset(dev);