Commit 182ff8df authored by Alexander Duyck's avatar Alexander Duyck Committed by David S. Miller
Browse files

igb/ixgbe: remove unecessary checks for CHECKSUM_UNNECESSARY 



Both of these drivers do a check to verify ip_summed is set to
CHECKSUM_UNNECESSARY prior to passing the packet to GRO.  GRO itself
already does such a check so it is redundant and can be removed as this
will likely cause out of order issues when receiving a packet that didn't
pass checksum validation.

Signed-off-by: default avatarAlexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 2844f797

drivers/net/igb/igb_main.c

+6 −14
Original line number Diff line number Diff line
@@ -4430,20 +4430,12 @@ static void igb_receive_skb(struct igb_ring *ring, u8 status, 
	bool vlan_extracted = (adapter->vlgrp && (status & E1000_RXD_STAT_VP));



	skb_record_rx_queue(skb, ring->queue_index);

	if (skb->ip_summed == CHECKSUM_UNNECESSARY) {

	if (vlan_extracted)

		vlan_gro_receive(&ring->napi, adapter->vlgrp,

		                 le16_to_cpu(rx_desc->wb.upper.vlan),

		                 skb);

	else

		napi_gro_receive(&ring->napi, skb);

	} else {

		if (vlan_extracted)

			vlan_hwaccel_receive_skb(skb, adapter->vlgrp,

			                  le16_to_cpu(rx_desc->wb.upper.vlan));

		else

			netif_receive_skb(skb);

	}

}



static inline void igb_rx_checksum_adv(struct igb_adapter *adapter,

drivers/net/ixgbe/ixgbe_main.c

+5 −12
Original line number Diff line number Diff line
@@ -459,17 +459,11 @@ static void ixgbe_receive_skb(struct ixgbe_q_vector *q_vector, 
	u16 tag = le16_to_cpu(rx_desc->wb.upper.vlan);



	skb_record_rx_queue(skb, q_vector - &adapter->q_vector[0]);

	if (skb->ip_summed == CHECKSUM_UNNECESSARY) {

	if (!(adapter->flags & IXGBE_FLAG_IN_NETPOLL)) {

		if (adapter->vlgrp && is_vlan && (tag != 0))

			vlan_gro_receive(napi, adapter->vlgrp, tag, skb);

		else

			napi_gro_receive(napi, skb);

	} else {

		if (!(adapter->flags & IXGBE_FLAG_IN_NETPOLL)) {

			if (adapter->vlgrp && is_vlan && (tag != 0))

				vlan_hwaccel_receive_skb(skb, adapter->vlgrp, tag);

			else

				netif_receive_skb(skb);

	} else {

		if (adapter->vlgrp && is_vlan && (tag != 0))

			vlan_hwaccel_rx(skb, adapter->vlgrp, tag);
@@ -477,7 +471,6 @@ static void ixgbe_receive_skb(struct ixgbe_q_vector *q_vector, 
			netif_rx(skb);

	}

}

}



/**

 * ixgbe_rx_checksum - indicate in skb if hw indicated a good cksum

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