From mboxrd@z Thu Jan 1 00:00:00 1970 From: eric.dumazet@gmail.com (Eric Dumazet) Date: Fri, 18 Jul 2014 17:36:24 +0200 Subject: [PATCH 4/6] net/macb: add RX checksum offload feature In-Reply-To: References: Message-ID: <1405697784.10255.99.camel@edumazet-glaptop2.roam.corp.google.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Fri, 2014-07-18 at 16:21 +0200, Cyrille Pitchen wrote: > Signed-off-by: Cyrille Pitchen > --- > drivers/net/ethernet/cadence/macb.c | 29 ++++++++++++++++++++++++++++- > drivers/net/ethernet/cadence/macb.h | 2 ++ > 2 files changed, 30 insertions(+), 1 deletion(-) > > diff --git a/drivers/net/ethernet/cadence/macb.c b/drivers/net/ethernet/cadence/macb.c > index 9bdcd1b..6acd6e2 100644 > --- a/drivers/net/ethernet/cadence/macb.c > +++ b/drivers/net/ethernet/cadence/macb.c > @@ -766,6 +766,8 @@ static int gem_rx(struct macb *bp, int budget) > > skb->protocol = eth_type_trans(skb, bp->dev); > skb_checksum_none_assert(skb); > + if (bp->dev->features & NETIF_F_RXCSUM) > + skb->ip_summed = CHECKSUM_UNNECESSARY; > Really ? If this is what you meant, this deserves a big and fat comment.