tree 6e0abe8fbfd68d8627099358b300c830c99eb42e
parent 240e86efd60e6bc232a072273a7f7794bcb035e0
author Lennert Buytenhek <buytenh@wantstofly.org> 1247735229 +0200
committer John W. Linville <linville@tuxdriver.com> 1250782686 -0400

mwl8k: dma header manipulations can't fail

Adding and removing the DMA header that the mwl8k hardware requires
on tx and provides on rx can never fail, since we are guaranteed to
have enough headroom on the tx path to expand the packet, and we only
ever shrink the packet on the rx path.  (And on both paths we are
guaranteed to be the only user of the skb we are handling.)

This allows removing all of the skb clone handling in the tx and tx
reclaim paths, and eliminates error checks in both the tx and rx
paths, simplifying the code a bit more.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>