net: sgi: ioc3-eth: use csum_fold

replace open coded checksum folding by csum_fold.

Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Thomas Bogendoerfer 2019-08-30 11:25:35 +02:00 • committed by David S. Miller
commit 8dff19a6dc