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authorEric Dumazet <edumazet@google.com>2013-08-01 17:49:52 +0400
committerDavid S. Miller <davem@davemloft.net>2013-08-04 08:55:52 +0400
commitf27070158d6754765f2f5fd1617e8e42a0ea2318 (patch)
treee203a11394a14d0a4659933e6210e7bfe0f50661 /net/bridge
parent0e76a3a587fc7abda2badf249053b427baad255e (diff)
downloadlinux-f27070158d6754765f2f5fd1617e8e42a0ea2318.tar.xz
ax88179_178a: avoid copy of tx tcp packets
ax88179_tx_fixup() has quite complex code trying to push 8 bytes of control data (len/mss), but fails to do it properly for TCP packets, incurring an extra copy and point of memory allocation failure. Lets use the simple and approved way. dev->needed_headroom being 8, all frames should have 8 bytes of headroom, so the extra copy should be unlikely anyway. This patch should improve performance for TCP xmits. Reported-by: Ming Lei <ming.lei@canonical.com> Tested-by: Ming Lei <ming.lei@canonical.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge')
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