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| author | Eric Dumazet <eric.dumazet@gmail.com> | 2010-09-05 20:04:05 -0700 |
|---|---|---|
| committer | Andi Kleen <ak@linux.intel.com> | 2010-12-14 23:40:18 +0100 |
| commit | d4114d4e08bba51c56d77ee3a3741e98ed107dc5 (patch) | |
| tree | f5c5eb70b3a779d147485c6e026440559cf0b827 /drivers/watchdog | |
| parent | 3acc1eff9aab5dc224463d6fdc1fc98912f97a6f (diff) | |
r8169: fix rx checksum offload
commit adea1ac7effbddbe60a9de6d63462bfe79289e59 upstream.
While porting GRO to r8169, I found this driver has a bug in its rx
path.
All skbs given to network stack had their ip_summed set to
CHECKSUM_NONE, while hardware said they had correct TCP/UDP checksums.
The reason is driver sets skb->ip_summed on the original skb before the
copy eventually done by copybreak. The fresh skb gets the ip_summed =
CHECKSUM_NONE value, forcing network stack to recompute checksum, and
preventing my GRO patch to work.
Fix is to make the ip_summed setting after skb copy.
Note : rx_copybreak current value is 16383, so all frames are copied...
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Diffstat (limited to 'drivers/watchdog')
0 files changed, 0 insertions, 0 deletions