netdev - Re: [PATCH resend] Renesas Ethernet AVB driver

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Date:	Sat, 28 Mar 2015 09:36:00 +0100
From:	Richard Cochran <richardcochran@...il.com>
To:	Lino Sanfilippo <LinoSanfilippo@....de>
Cc:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>,
	robh+dt@...nel.org, pawel.moll@....com, mark.rutland@....com,
	ijc+devicetree@...lion.org.uk, devicetree@...r.kernel.org,
	galak@...eaurora.org, netdev@...r.kernel.org,
	linux-sh@...r.kernel.org
Subject: Re: [PATCH resend] Renesas Ethernet AVB driver

On Sat, Mar 28, 2015 at 06:17:13AM +0100, Lino Sanfilippo wrote:
> 
> Do you really need one huge lock for all register accesses? Maybe you
> should rethink which registers can actually be accessed concurrently and
> implement some finer grained locking.

One lock is fine, unless the registers are highly contended.

Thanks,
Richard
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