[Intel-wired-lan] [PATCH 2/6] treewide: remove using list iterator after loop body as a ptr
Johannes Berg
johannes at sipsolutions.net
Mon Feb 28 20:27:13 UTC 2022
On Mon, 2022-02-28 at 20:16 +0000, Matthew Wilcox wrote:
> On Mon, Feb 28, 2022 at 12:10:24PM -0800, Linus Torvalds wrote:
> > We can do
> >
> > typeof(pos) pos
> >
> > in the 'for ()' loop, and never use __iter at all.
> >
> > That means that inside the for-loop, we use a _different_ 'pos' than outside.
>
> Then we can never use -Wshadow ;-( I'd love to be able to turn it on;
> it catches real bugs.
>
I was just going to say the same thing...
If we're willing to change the API for the macro, we could do
list_for_each_entry(type, pos, head, member)
and then actually take advantage of -Wshadow?
johannes
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