jme: Tuning rxsum function

1. Use more efficient way to determine flag status.
2. Hardware dose not mark fragment bit against IPv6 packets,
   print TCP/UDP checksum warning message for IPv4 packets
   only.

Signed-off-by: Guo-Fu Tseng <cooldavid@cooldavid.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Guo-Fu Tseng 2009-07-06 04:41:22 +00:00 • committed by David S. Miller
commit ce7d70af2c