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cx82310_eth: use skb_cow_head() to deal with cloned skbs
authorEric Dumazet <edumazet@google.com>
Wed, 19 Apr 2017 16:59:22 +0000 (09:59 -0700)
committerDavid S. Miller <davem@davemloft.net>
Fri, 21 Apr 2017 17:24:05 +0000 (13:24 -0400)
commita9e840a2081ed28c2b7caa6a9a0041c950b3c37d
tree9f7b8a5f55e9807fc858273160a0ac0d58bfdb44tree | snapshot
parentb7c6d2675899cfff0180412c63fc9cbd5bacdb4dcommit | diff
cx82310_eth: 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: cc28a20e77b2 ("introduce cx82310_eth: Conexant CX82310-based ADSL router USB ethernet driver")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: James Hughes <james.hughes@raspberrypi.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/usb/cx82310_eth.c diff | blob | blame | history
Linux Project Source (from git://github.com/torvalds/linux)