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| author | Eric Dumazet <edumazet@google.com> | 2013-08-01 15:49:52 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-08-04 06:55:52 +0200 |
| commit | f27070158d6754765f2f5fd1617e8e42a0ea2318 (patch) | |
| tree | e203a11394a14d0a4659933e6210e7bfe0f50661 /drivers/xen/gntdev.c | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net (diff) | |
| download | linux-f27070158d6754765f2f5fd1617e8e42a0ea2318.tar.xz linux-f27070158d6754765f2f5fd1617e8e42a0ea2318.zip | |
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 'drivers/xen/gntdev.c')
0 files changed, 0 insertions, 0 deletions