1 From dbfae4876cd4c8525a0100f19307f16cf7fb384a Mon Sep 17 00:00:00 2001
2 From: Steve Glendinning <steve.glendinning@smsc.com>
3 Date: Thu, 19 Feb 2015 18:47:12 +0000
4 Subject: [PATCH] smsx95xx: fix crimes against truesize
6 smsc95xx is adjusting truesize when it shouldn't, and following a recent patch from Eric this is now triggering warnings.
8 This patch stops smsc95xx from changing truesize.
10 Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
12 drivers/net/usb/smsc95xx.c | 10 ++++++++--
13 1 file changed, 8 insertions(+), 2 deletions(-)
15 --- a/drivers/net/usb/smsc95xx.c
16 +++ b/drivers/net/usb/smsc95xx.c
17 @@ -67,6 +67,10 @@ static bool turbo_mode = true;
18 module_param(turbo_mode, bool, 0644);
19 MODULE_PARM_DESC(turbo_mode, "Enable multiple frames per Rx transaction");
21 +static bool truesize_mode = false;
22 +module_param(truesize_mode, bool, 0644);
23 +MODULE_PARM_DESC(truesize_mode, "Report larger truesize value");
25 static int __must_check __smsc95xx_read_reg(struct usbnet *dev, u32 index,
28 @@ -1827,7 +1831,8 @@ static int smsc95xx_rx_fixup(struct usbn
29 if (dev->net->features & NETIF_F_RXCSUM)
30 smsc95xx_rx_csum_offload(skb);
31 skb_trim(skb, skb->len - 4); /* remove fcs */
32 - skb->truesize = size + sizeof(struct sk_buff);
34 + skb->truesize = size + sizeof(struct sk_buff);
38 @@ -1845,7 +1850,8 @@ static int smsc95xx_rx_fixup(struct usbn
39 if (dev->net->features & NETIF_F_RXCSUM)
40 smsc95xx_rx_csum_offload(ax_skb);
41 skb_trim(ax_skb, ax_skb->len - 4); /* remove fcs */
42 - ax_skb->truesize = size + sizeof(struct sk_buff);
44 + ax_skb->truesize = size + sizeof(struct sk_buff);
46 usbnet_skb_return(dev, ax_skb);