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| SKB_PUSH(9) | Linux Networking | SKB_PUSH(9) |
NAME¶
skb_push - add data to the start of a buffer
SYNOPSIS¶
unsigned char * skb_push(struct sk_buff * skb, unsigned int len);
ARGUMENTS¶
struct sk_buff * skb
buffer to use
unsigned int len
amount of data to add
DESCRIPTION¶
This function extends the used data area of the buffer at the buffer start. If this would exceed the total buffer headroom the kernel will panic. A pointer to the first byte of the extra data is returned.
COPYRIGHT¶
| September 2017 | Kernel Hackers Manual 4.12 |