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.TH "__PSKB_PULL_TAIL" "9" "09 October 2005" "" ""

.SH NAME
__pskb_pull_tail \- advance tail of skb header
.SH SYNOPSIS
"SYNOPSIS"
.sp
\fB
.sp
unsigned char * __pskb_pull_tail  (struct sk_buff * \fIskb\fB, int \fIdelta\fB);
\fR
.SH "ARGUMENTS"
.TP
\fB\fIskb\fB\fR
buffer to reallocate
.TP
\fB\fIdelta\fB\fR
number of bytes to advance tail
.SH "DESCRIPTION"
.PP
The function makes a sense only on a fragmented &sk_buff,
it expands header moving its tail forward and copying necessary
data from fragmented part.
.PP
&sk_buff MUST have reference count of 1.
.PP
Returns NULL (and &sk_buff does not change) if pull failed
or value of new tail of skb in the case of success.
.PP
All the pointers pointing into skb header may change and must be
reloaded after call to this function.