Commit 54b2b3ec authored by Ben Ben-ishay's avatar Ben Ben-ishay Committed by Saeed Mahameed
Browse files

net: Prevent HW-GRO and LRO features operate together 



LRO and HW-GRO are mutually exclusive, this commit adds this restriction
in netdev_fix_feature. HW-GRO is preferred, that means in case both
HW-GRO and LRO features are requested, LRO is cleared.

Signed-off-by: default avatarBen Ben-ishay <benishay@nvidia.com>
Reviewed-by: default avatarTariq Toukan <tariqt@nvidia.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@nvidia.com>
parent 7529cc7f

net/core/dev.c

+5 −0
Original line number Diff line number Diff line
@@ -9922,6 +9922,11 @@ static netdev_features_t netdev_fix_features(struct net_device *dev, 
		}

	}



	if ((features & NETIF_F_GRO_HW) && (features & NETIF_F_LRO)) {

		netdev_dbg(dev, "Dropping LRO feature since HW-GRO is requested.\n");

		features &= ~NETIF_F_LRO;

	}



	if (features & NETIF_F_HW_TLS_TX) {

		bool ip_csum = (features & (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM)) ==

			(NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM);