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tuntap: switch to use XDP_PACKET_HEADROOM

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Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jason Wang 2018-09-12 11:17:00 +08:00 committed by David S. Miller
parent e4a2a3048e
commit 4f23aff871
1 changed files with 1 additions and 2 deletions
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3
drivers/net/tun.c
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@ -113,7 +113,6 @@ do { \
} while (0)
#endif
#define TUN_HEADROOM 256
#define TUN_RX_PAD (NET_IP_ALIGN + NET_SKB_PAD)
/* TUN device flags */
@ -1654,7 +1653,7 @@ static struct sk_buff *tun_build_skb(struct tun_struct *tun,
rcu_read_lock();
xdp_prog = rcu_dereference(tun->xdp_prog);
if (xdp_prog)
pad += TUN_HEADROOM;
pad += XDP_PACKET_HEADROOM;
buflen += SKB_DATA_ALIGN(len + pad);
rcu_read_unlock();