tuntap: switch to use XDP_PACKET_HEADROOM

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>

diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 2c548bd..d3677a5 100644 (file)
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -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();