Commit 879c7220 authored by Bogdan Hamciuc's avatar Bogdan Hamciuc Committed by David S. Miller
Browse files

net: pktgen: Observe needed_headroom of the device 



Allocate enough space so as not to force the outgoing net device to do
skb_realloc_headroom().

Signed-off-by: default avatarBogdan Hamciuc <bogdan.hamciuc@freescale.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 92a99bf3

net/core/pktgen.c

+2 −1
Original line number Diff line number Diff line
@@ -2279,7 +2279,7 @@ static void spin(struct pktgen_dev *pkt_dev, ktime_t spin_until) 


static inline void set_pkt_overhead(struct pktgen_dev *pkt_dev)

{

	pkt_dev->pkt_overhead = 0;

	pkt_dev->pkt_overhead = LL_RESERVED_SPACE(pkt_dev->odev);

	pkt_dev->pkt_overhead += pkt_dev->nr_labels*sizeof(u32);

	pkt_dev->pkt_overhead += VLAN_TAG_SIZE(pkt_dev);

	pkt_dev->pkt_overhead += SVLAN_TAG_SIZE(pkt_dev);
@@ -2788,6 +2788,7 @@ static struct sk_buff *pktgen_alloc_skb(struct net_device *dev, 
	} else {

		 skb = __netdev_alloc_skb(dev, size, GFP_NOWAIT);

	}

	skb_reserve(skb, LL_RESERVED_SPACE(dev));



	return skb;

}