diff options
Diffstat (limited to 'target/linux/generic/patches-4.4/030-1-smsc95xx-Use-skb_cow_head-to-deal-with-cloned-skbs.patch')
| -rw-r--r-- | target/linux/generic/patches-4.4/030-1-smsc95xx-Use-skb_cow_head-to-deal-with-cloned-skbs.patch | 40 |
1 files changed, 0 insertions, 40 deletions
diff --git a/target/linux/generic/patches-4.4/030-1-smsc95xx-Use-skb_cow_head-to-deal-with-cloned-skbs.patch b/target/linux/generic/patches-4.4/030-1-smsc95xx-Use-skb_cow_head-to-deal-with-cloned-skbs.patch deleted file mode 100644 index 36fb936e32..0000000000 --- a/target/linux/generic/patches-4.4/030-1-smsc95xx-Use-skb_cow_head-to-deal-with-cloned-skbs.patch +++ /dev/null @@ -1,40 +0,0 @@ -From e9156cd26a495a18706e796f02a81fee41ec14f4 Mon Sep 17 00:00:00 2001 -From: James Hughes <james.hughes@raspberrypi.org> -Date: Wed, 19 Apr 2017 11:13:40 +0100 -Subject: [PATCH] smsc95xx: Use skb_cow_head to deal with cloned skbs - -The driver was failing to check that the SKB wasn't cloned -before adding checksum data. -Replace existing handling to extend/copy the header buffer -with skb_cow_head. - -Signed-off-by: James Hughes <james.hughes@raspberrypi.org> -Acked-by: Eric Dumazet <edumazet@google.com> -Acked-by: Woojung Huh <Woojung.Huh@microchip.com> -Signed-off-by: David S. Miller <davem@davemloft.net> ---- - drivers/net/usb/smsc95xx.c | 12 ++++++------ - 1 file changed, 6 insertions(+), 6 deletions(-) - ---- a/drivers/net/usb/smsc95xx.c -+++ b/drivers/net/usb/smsc95xx.c -@@ -1835,13 +1835,13 @@ static struct sk_buff *smsc95xx_tx_fixup - /* We do not advertise SG, so skbs should be already linearized */ - BUG_ON(skb_shinfo(skb)->nr_frags); - -- if (skb_headroom(skb) < overhead) { -- struct sk_buff *skb2 = skb_copy_expand(skb, -- overhead, 0, flags); -+ /* Make writable and expand header space by overhead if required */ -+ if (skb_cow_head(skb, overhead)) { -+ /* Must deallocate here as returning NULL to indicate error -+ * means the skb won't be deallocated in the caller. -+ */ - dev_kfree_skb_any(skb); -- skb = skb2; -- if (!skb) -- return NULL; -+ return NULL; - } - - if (csum) { |