/* device driver is going to provide hardware time stamp */
SKBTX_IN_PROGRESS = 1 << 2,
- /* ensure the originating sk reference is available on driver level */
- SKBTX_DRV_NEEDS_SK_REF = 1 << 3,
-
/* device driver supports TX zero-copy buffers */
- SKBTX_DEV_ZEROCOPY = 1 << 4,
+ SKBTX_DEV_ZEROCOPY = 1 << 3,
};
/*
union {
__u32 mark;
__u32 dropcount;
- __u32 avail_size;
+ __u32 reserved_tailroom;
};
__u16 vlan_tci;
*/
static inline int skb_availroom(const struct sk_buff *skb)
{
- return skb_is_nonlinear(skb) ? 0 : skb->avail_size - skb->len;
+ if (skb_is_nonlinear(skb))
+ return 0;
+
+ return skb->end - skb->tail - skb->reserved_tailroom;
}
/**
{
int delta = 0;
- if (headroom < NET_SKB_PAD)
- headroom = NET_SKB_PAD;
if (headroom > skb_headroom(skb))
delta = headroom - skb_headroom(skb);