Re: [PATCH net-next 2/3] net: use skb_for_each_frag() helper where possible

[Jakub Kicinski]

On Fri,  9 Apr 2021 20:06:04 +0200 Matteo Croce wrote:
> From: Matteo Croce <mcroce@xxxxxxxxxxxxx>
> 
> use the new helper macro skb_for_each_frag() which allows to iterate
> through all the SKB fragments.
> 
> The patch was created with Coccinelle, this was the semantic patch:

Bunch of set but not used warnings here. Please make sure the code
builds cleanly allmodconfig, W=1 C=1 before posting.

What pops to mind (although quite nit picky) is the question if the
assembly changes much between driver which used to cache nr_frags and
now always going skb_shinfo(skb)->nr_frags? It's a relatively common
pattern.