Re: [PATCH net] net: lapb: Copy the skb before sending a packet

Xie He
2021-02-01T16:15:35Z

On Mon, Feb 1, 2021 at 6:10 AM Julian Wiedmann <jwi@linux.ibm.com> wrote:
>
> This sounds a bit like you want skb_cow_head() ... ?

Calling "skb_cow_head" before we call "skb_clone" would indeed solve
the problem of writes to our clones affecting clones in other parts of
the system. But since we are still writing to the skb after
"skb_clone", it'd still be better to replace "skb_clone" with
"skb_copy" to avoid interference between our own clones.