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Re: [PATCH RFC 2/7] wifi: cfg80211: reorg sinfo structure elements for MLO

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On Sun, 2025-01-12 at 13:40 +0530, Sarika Sharma wrote:
> On 1/10/2025 2:49 PM, Johannes Berg wrote:
> > On Fri, 2025-01-10 at 09:54 +0530, Sarika Sharma wrote:
> > > 
> > >   struct station_info {
> > > 
> > > +	struct link_station_info deflink;
> > 
> > Having a deflink here seems kind of questionable?
> 
> ohh! why so? In other structures like vif, sdata, sta, we did the same 
> way. So why can't we have the same way here as well?

Well, (a) I tend to think in hindsight it was sort of a mistake, but (b)
we couldn't really do it differently due to all drivers. But here you're
already touching all the code anyway, and it's mostly cfg80211/mac80211,
so why bother?

> > Why not pass multiple pointers?
> 
> Sorry, I didn't get you.
> Did you mean keep the sinfo structure and call this for filling all link 
> level, non-mL, ML information?

I think I meant that we could have per link pointers passed to the
method, but we might as well just have them in the sinfo struct as you
introduce in later patches.

> > > -	if (!(sinfo->filled & BIT_ULL(NL80211_STA_INFO_TX_BITRATE)) &&
> > > +	if (!(link_sinfo->filled & BIT_ULL(NL80211_STA_INFO_TX_BITRATE)) &&
> > > 
> > 
> > A little less renaming would probably also make this easier to review.
> 
> Sure, but this is corresponding to filling link level data, that's why 
> just renaming sinfo to link_sinfo.

Yeah, but does it matter so much? :)

I guess the flipside is that this way it's easier to review that all
values fall into the right place, but I think the data structure
organisation you did mostly ensures that anyway? Not sure though.

johannes





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