Re: [PATCH 01/15] skbuff: introduce skb_pull_data

On Tue, 30 Nov 2021 16:02:01 -0800 Luiz Augusto von Dentz wrote:

From: Luiz Augusto von Dentz <redacted>

Like skb_pull but returns the original data pointer before pulling the
data after performing a check against sbk->len.

This allows to change code that does "struct foo *p = (void *)skb->data;"
which is hard to audit and error prone, to:

        p = skb_pull_data(skb, sizeof(*p));
        if (!p)
                return;

Which is both safer and cleaner.

It doesn't take a data pointer, so not really analogous to
skb_put_data() and friends which come to mind. But I have 
no better naming suggestions. You will need to respin, tho,
if you want us to apply these directly, the patches as posted 
don't apply to either netdev tree.