[PATCH 002 of 3] knfsd: Avoid checksum checks when collecting metadata for a UDP packet.

When recv_msg is called with a size of 0 and MSG_PEEK (and sunrpc/svcsock.c does), it is clear that we only interested in metadata (from/to addresses) and not the data, so don't do any checksum checking at this point. Leave that until the data is requested. Signed-off-by: Neil Brown <[EMAIL

[PATCH 002 of 3] knfsd: Avoid checksum checks when collecting metadata for a UDP packet.

When recv_msg is called with a size of 0 and MSG_PEEK (and sunrpc/svcsock.c does), it is clear that we only interested in metadata (from/to addresses) and not the data, so don't do any checksum checking at this point. Leave that until the data is requested. Signed-off-by: Neil Brown [EMAIL