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SubjectRe: when is alloc_skb called
Ben Collins wrote:
> On Mon, Jun 07, 2004 at 03:29:14PM -0600, Sushant Sharma wrote:
>>Hi All
>>I want to know which are the evnets
>>that can lead to the calling of alloc_skb
>>function which is used to allocate sk_buff.
>>Arrival and departure of packet are 2 events
>>which I know. Are there any other events/cases
>>which can lead to alloc_skb(...) function call in kernel.
> Some non-network related drivers use skb's for non-network related
> things (ieee1394 is one such abuser).

And some network protocol stacks use it to report events, like
connection requests, etc see the x25 code, for instance
(x25_establish_link, x25_terminate_link), sometimes allocating
1 byte, sometimes using the skb->cb scratch area.

- Arnaldo
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