ALSA: Revert "ALSA: snd-usb-caiaq: Set default input mode of A4DJ"
[safe/jmp/linux-2.6] / net / ipv4 / ip_gre.c
index f47c9f7..fe381d1 100644 (file)
@@ -14,6 +14,7 @@
 #include <linux/module.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
+#include <linux/slab.h>
 #include <asm/uaccess.h>
 #include <linux/skbuff.h>
 #include <linux/netdevice.h>
@@ -810,11 +811,13 @@ static netdev_tx_t ipgre_tunnel_xmit(struct sk_buff *skb, struct net_device *dev
                        tunnel->err_count = 0;
        }
 
-       max_headroom = LL_RESERVED_SPACE(tdev) + gre_hlen;
+       max_headroom = LL_RESERVED_SPACE(tdev) + gre_hlen + rt->u.dst.header_len;
 
        if (skb_headroom(skb) < max_headroom || skb_shared(skb)||
            (skb_cloned(skb) && !skb_clone_writable(skb, 0))) {
                struct sk_buff *new_skb = skb_realloc_headroom(skb, max_headroom);
+               if (max_headroom > dev->needed_headroom)
+                       dev->needed_headroom = max_headroom;
                if (!new_skb) {
                        ip_rt_put(rt);
                        txq->tx_dropped++;