loopback: Drop obsolete ip_summed setting
authorHerbert Xu <herbert@gondor.apana.org.au>
Fri, 15 Aug 2008 21:56:37 +0000 (14:56 -0700)
committerDavid S. Miller <davem@davemloft.net>
Sat, 16 Aug 2008 02:52:01 +0000 (19:52 -0700)
commit04a0551c87363f100b04d28d7a15a632b70e18e7
tree0e99521316fab64754104677c6fa6b6a63b3f922
parent6f85a124d819e1cf33b16d064a6a656fd448a735
loopback: Drop obsolete ip_summed setting

Now that the network stack can handle inbound packets with partial
checksums, we should no longer clobber the ip_summed field in the
loopback driver.  This is because CHECKSUM_UNNECESSARY implies that
the checksum field is actually valid which is not true for loopback
packets since it's only partial (and thus complemented).

This allows packets from lo to then be SNATed to an external source
while still preserving the checksum's validity.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/loopback.c