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From: Michael Buesch <mb@bu3sch.de>
To: Herton Ronaldo Krzesinski <herton@mandriva.com.br>
Cc: Larry Finger <Larry.Finger@lwfinger.net>,
	"Hin-Tak Leung" <hintak.leung@gmail.com>,
	Pavel Roskin <proski@gnu.org>,
	wireless <linux-wireless@vger.kernel.org>
Subject: Re: [RFC/RFT] rtl8187: Protect the config callback from mac80211 with a mutex
Date: Wed, 30 Jul 2008 20:41:41 +0200	[thread overview]
Message-ID: <200807302041.41327.mb@bu3sch.de> (raw)
In-Reply-To: <200807301511.12267.herton@mandriva.com.br>

On Wednesday 30 July 2008 20:11:11 Herton Ronaldo Krzesinski wrote:
> Em Wednesday 30 July 2008 14:46:40 Michael Buesch escreveu:
> > On Wednesday 30 July 2008 19:13:52 Herton Ronaldo Krzesinski wrote:
> > > > Yeah, I said exactly that.
> > > > You protect the loopback stuff. Not any config callback or anything else.
> > > 
> > > Ah ok, only protect the section, like this?
> > 
> > Yeah, well. In theory, yes. In practice: Aren't there other races possible, too?
> > I mean even races with other parts of the driver.
> > b43 needs to take the global driver mutex in the conf callback to make
> > sure nothing changes (device init state probably is the most important one.
> > Device going down while configuring would be a fatal crash).
> 
> In practice I don't get other problems, but better to stick to the patch posted
> by Larry,

Yeah, OK. I'm fine with that. I was just pointing out possible future problems.

> like he said to avoid config data from one call mixed to the other. 

Nah, we're not locking calls ;P

-- 
Greetings Michael.

  reply	other threads:[~2008-07-30 18:42 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-07-30  6:12 [RFC/RFT] rtl8187: Protect the config callback from mac80211 with a mutex Larry Finger
2008-07-30 13:24 ` Michael Buesch
2008-07-30 13:27   ` Michael Buesch
2008-07-30 14:53     ` Herton Ronaldo Krzesinski
2008-07-30 15:02       ` Michael Buesch
2008-07-30 16:08         ` Herton Ronaldo Krzesinski
2008-07-30 16:16           ` Michael Buesch
2008-07-30 17:13             ` Herton Ronaldo Krzesinski
2008-07-30 17:31               ` Larry Finger
2008-07-30 17:46               ` Michael Buesch
2008-07-30 18:11                 ` Herton Ronaldo Krzesinski
2008-07-30 18:41                   ` Michael Buesch [this message]
2008-07-30 19:26                   ` Hin-Tak Leung
2008-07-30 13:27 ` Herton Ronaldo Krzesinski

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