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RE: [EXT] Re: [PATCH v10 1/2] wifi: mwifiex: add host mlme for client mode

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Hi Brian,

> From: Brian Norris <briannorris@xxxxxxxxxxxx>
> Sent: Friday, June 21, 2024 1:53 AM
> To: David Lin <yu-hao.lin@xxxxxxx>
> Cc: linux-wireless@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx;
> kvalo@xxxxxxxxxx; francesco@xxxxxxxxxx; Pete Hsieh
> <tsung-hsien.hsieh@xxxxxxx>; Francesco Dolcini
> <francesco.dolcini@xxxxxxxxxxx>
> Subject: Re: [EXT] Re: [PATCH v10 1/2] wifi: mwifiex: add host mlme for client
> mode
> 
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> 
> 
> Hi David,
> 
> On Sat, May 25, 2024 at 12:50:59AM +0000, David Lin wrote:
> >
> > > From: Brian Norris <briannorris@xxxxxxxxxxxx>
> > > Sent: Saturday, May 25, 2024 6:55 AM
> > >
> > > On Fri, May 24, 2024 at 3:01 PM David Lin <yu-hao.lin@xxxxxxx> wrote:
> > > > I think it needs time to support probe client. Can we put your
> > > > suggested comments to the code used to hook probe_client() and add
> > > >
> > > > "TODO: support probe client" to mwifiex_cfg80211_probe_client().
> > >
> > > Are you suggesting that you plan to actually implement proper
> > > probe_client support? Did you already do what I suggested, and
> > > understand why hostapd needs probe_client support? This seems to be
> > > a common pattern -- that reviewers are asking for you to do your
> > > research, and it takes several requests before you actually do it.
> > >
> > > Now that I've tried to do that research for you ... it looks like
> > > hostapd uses probe_client to augment TX MGMT acks, as a proxy for
> > > station presence / inactivity. If a station is inactive and
> > > non-responsive, we disconnect it eventually. So that looks to me
> > > like probe_client support should actually be optional, if your
> > > driver reports TX status? And in that case, I'd still recommend you try to fix
> hostapd.
> > >
> > > But if you're really planning to implement proper probe_client
> > > support, then I suppose the TODO approach is also OK.
> > >
> > > I'd also request that you please actually do your research when
> > > reviewers ask questions. I'm frankly not sure why I'm spending my
> > > time on the above research, when the onus should be on the submitter
> > > to explain why they're doing what they're doing.
> >
> > Yes. I know when aging time of station is out, hostapd will use probe_client
> to check if station is still there before really disconnect it.
> >
> > Without this feature, it won't really affect mayor function of hostapd.
> 
> I'm glad *you* know all about the above behavior, but *I* didn't know about it
> until I went and researched what this API does, and how hostapd is using it. But
> that isn't my job -- it's your job, as the code submitter, to explain your
> reasoning and reduce the amount of work that readers/reviewers/maintainers
> have to do to understand your code and agree that it is the right thing to do.
> 
> It's not clear to me that you've really learned the above lesson, and it's really
> affecting the rate at which I review your code. This is by far not the first time
> that you've placed the burden on the reader. And if you're going to make the
> job difficult, then I'll prioritize enjoying my free time, or stuff that actually pays
> me at $DAY_JOB, or ...

I will keep this in mind.

> 
> > That is the reason that I suggest that we put comments and TODO to the
> code.
> 
> OK, I suppose that works for me.
> 
> Brian

I suggest that we just put your comments and prepare patch v11.

Thanks,
David




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