diff options
Diffstat (limited to 'target/linux/generic/backport-4.9/023-5-lan78xx-use-skb_cow_head-to-deal-with-cloned-skbs.patch')
| -rw-r--r-- | target/linux/generic/backport-4.9/023-5-lan78xx-use-skb_cow_head-to-deal-with-cloned-skbs.patch | 38 |
1 files changed, 0 insertions, 38 deletions
diff --git a/target/linux/generic/backport-4.9/023-5-lan78xx-use-skb_cow_head-to-deal-with-cloned-skbs.patch b/target/linux/generic/backport-4.9/023-5-lan78xx-use-skb_cow_head-to-deal-with-cloned-skbs.patch deleted file mode 100644 index ea8279940b..0000000000 --- a/target/linux/generic/backport-4.9/023-5-lan78xx-use-skb_cow_head-to-deal-with-cloned-skbs.patch +++ /dev/null @@ -1,38 +0,0 @@ -From d4ca73591916b760478d2b04334d5dcadc028e9c Mon Sep 17 00:00:00 2001 -From: Eric Dumazet <edumazet@google.com> -Date: Wed, 19 Apr 2017 09:59:24 -0700 -Subject: [PATCH] lan78xx: use skb_cow_head() to deal with cloned skbs - -We need to ensure there is enough headroom to push extra header, -but we also need to check if we are allowed to change headers. - -skb_cow_head() is the proper helper to deal with this. - -Fixes: 55d7de9de6c3 ("Microchip's LAN7800 family USB 2/3 to 10/100/1000 Ethernet device driver") -Signed-off-by: Eric Dumazet <edumazet@google.com> -Cc: James Hughes <james.hughes@raspberrypi.org> -Cc: Woojung Huh <woojung.huh@microchip.com> -Signed-off-by: David S. Miller <davem@davemloft.net> ---- - drivers/net/usb/lan78xx.c | 9 ++------- - 1 file changed, 2 insertions(+), 7 deletions(-) - ---- a/drivers/net/usb/lan78xx.c -+++ b/drivers/net/usb/lan78xx.c -@@ -2419,14 +2419,9 @@ static struct sk_buff *lan78xx_tx_prep(s - { - u32 tx_cmd_a, tx_cmd_b; - -- if (skb_headroom(skb) < TX_OVERHEAD) { -- struct sk_buff *skb2; -- -- skb2 = skb_copy_expand(skb, TX_OVERHEAD, 0, flags); -+ if (skb_cow_head(skb, TX_OVERHEAD)) { - dev_kfree_skb_any(skb); -- skb = skb2; -- if (!skb) -- return NULL; -+ return NULL; - } - - if (lan78xx_linearize(skb) < 0) |