netdev - [PATCH net-next v3 5/5] bonding: handle NETIF_F_HW_NETFUNC

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Date:	Thu, 22 Jan 2015 20:33:26 -0800
From:	roopa@...ulusnetworks.com
To:	jiri@...nulli.us, sfeldma@...il.com, jhs@...atatu.com,
	bcrl@...ck.org, tgraf@...g.ch, john.fastabend@...il.com,
	stephen@...workplumber.org, vyasevic@...hat.com,
	ronen.arad@...el.com
Cc:	netdev@...r.kernel.org, davem@...emloft.net,
	shm@...ulusnetworks.com, gospo@...ulusnetworks.com,
	Roopa Prabhu <roopa@...ulusnetworks.com>
Subject: [PATCH net-next v3 5/5] bonding: handle NETIF_F_HW_NETFUNC_OFFLOAD flag to bonding feature mask

From: Roopa Prabhu <roopa@...ulusnetworks.com>

We want bond to pick up the offload flag if any of its slaves have it.

NETIF_F_HW_NETFUNC_OFFLOAD flag is added to the mask, so that
netdev_increment_features does not ignore it.

If this needs to be under CONFIG_NET_SWITCHDEV, I can do so.

Signed-off-by: Roopa Prabhu <roopa@...ulusnetworks.com>
---
 drivers/net/bonding/bond_main.c |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 184c434..4304194 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -979,7 +979,11 @@ static netdev_features_t bond_fix_features(struct net_device *dev,
 	netdev_features_t mask;
 	struct slave *slave;
 
-	mask = features;
+	/* If any slave has the offload feature flag set,
+	 * set the offload flag on the bond.
+	 */
+	mask = features | NETIF_F_HW_NETFUNC_OFFLOAD;
+
 	features &= ~NETIF_F_ONE_FOR_ALL;
 	features |= NETIF_F_ALL_FOR_ALL;
 
-- 
1.7.10.4

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