netdev - Re: [PATCH resend 1/3] Revert "net: fec: fix missing napi

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Date:	Mon, 29 Apr 2013 15:46:57 +0200
From:	Lucas Stach <l.stach@...gutronix.de>
To:	Frank Li <lznuaa@...il.com>
Cc:	Robert Schwebel <r.schwebel@...gutronix.de>,
	David Miller <davem@...emloft.net>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"Frank.Li@...escale.com" <Frank.Li@...escale.com>,
	Fabio Estevam <festevam@...il.com>,
	Shawn Guo <shawn.guo@...aro.org>
Subject: Re: [PATCH resend 1/3] Revert "net: fec: fix missing napi_disable
 call"

Am Samstag, den 27.04.2013, 18:26 +0800 schrieb Frank Li:
> >
> > - remove locking in a way that memory is freed which is in use
> 
> The purpose of remove lock is that fix dead lock.

Could you please elaborate? What is the exact situation which caused a
deadlock here? I tried to see what's happening from your changelogs, but
I'm not sure I can follow here. Wasn't the problem more of the used
spinlocks not being IRQ-save and thus potentially creating a deadlock?

Regards,
Lucas
-- 
Pengutronix e.K.                           | Lucas Stach                 |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
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