linux-kernel - Re: [PATCH RFC] remove custom Michael MIC implementation

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Date:   Sat, 1 Apr 2017 21:40:48 +1100
From:   "Tobin C. Harding" <me@...in.cc>
To:     Wolfram Sang <wsa@...-dreams.de>
Cc:     linux-kernel@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        devel@...uxdriverproject.org, Tycho Andersen <tycho@...ho.ws>
Subject: Re: [PATCH RFC] remove custom Michael MIC implementation

On Fri, Mar 31, 2017 at 12:42:22PM +0200, Wolfram Sang wrote:
> Hi,
> 
> > The card I have is a Spectec FCC ID: S2Y-WLAN-11B-G which I believe is
> > a SDW-823 and should use the ks7010 driver.
> 
> Sorry, likely not. It is an early SDW-821 and has a MediaTek chipset for
> which no driver is known:
> https://wikidevi.com/wiki/Spectec_SDW-821_%28MediaTek%29

Oh damn.

> 
> For SDW-821 (SD size) and KS7010, you'd need a "S2Y-WLAN-11G-K" (but I
> have never seen one yet):
> https://wikidevi.com/wiki/Spectec_SDW-821_%28KeyStream%29
> 
> One can find an SDW-823 (microSD) "S2Y-MWLAN-11B-G" once in a while:
> https://wikidevi.com/wiki/Spectec_SDW-823

That's actually the page I was reading, I didn't notice the 'M' in there.

> > > Without the CFG80211 conversion, replacing the Michael custom
> > > implementation with the in-kernel one makes the driver a tad better and
> > > is good exercise. However, it will sadly not help to get the driver out
> > > of staging.
> > 
> > I'll drop it then. Could you please tell me, is there any thing else
> > more I need to do to let LKML know that this RFC is dropped? Or is
> > this reply enough. I don't want to use any ones time unnecessarily.
> 
> That should do.
> 
> > Let's go for a CFG80211 driver and get out of staging :) So next step
> > is I guess study the ath6kl driver, learn how CFG80211 is done and
> > implement that interface in ks7010? Oh, and test that it works.
> 
> Yes, have a look around and check if you like that task. I might have a
> spare SDW-823 lying around if you are up to it. But check first, it is
> not a trivial task. On the pro side, there are tons of interesting
> things about WiFI and kernel development to learn on the way :)

I like the task. You had me at 'this is a huge change...' in your
first email. Whether I have the ability is yet to be seen. Thanks for
the offer of the card, let's wait first to see if I can make any
progress that warrants testing. The new breakout board turned up in
the mail today, super glad to read your email before I spent the day
tomorrow trying to get it working :)

> 
> Regards,
> 
>    Wolfram
> 

Cheers Wolfram,
Tobin.

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