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smsc95xx: Use skb_cow_head to deal with cloned skbs
authorJames Hughes <james.hughes@raspberrypi.org>
Wed, 19 Apr 2017 10:13:40 +0000 (11:13 +0100)
committerDavid S. Miller <davem@davemloft.net>
Thu, 20 Apr 2017 20:27:15 +0000 (16:27 -0400)
commit423a2abc26cbb3b18b33d0b1c393671801c9c0e4
tree1611a0f290429a70e0fbbecada5a825f2af0e324tree | snapshot
parent0abc16951de8d9f59796c086d818583197893f40commit | diff
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 diff | blob | history
Linux Kernel Source Tree.