netdev - Re: [PATCHv2 3/9] macb: unify at91 and avr32 platform data

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Message-ID: <20110317085835.GC29758@n2100.arm.linux.org.uk>
Date:	Thu, 17 Mar 2011 08:58:35 +0000
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Peter Korsgaard <jacmet@...site.dk>
Cc:	"avictor.za@...il.com" <avictor.za@...il.com>,
	Jamie Iles <jamie@...ieiles.com>, plagnioj@...osoft.com,
	linux-arm-kernel@...ts.infradead.org, nicolas.ferre@...el.com,
	netdev@...r.kernel.org
Subject: Re: [PATCHv2 3/9] macb: unify at91 and avr32 platform data

On Thu, Mar 17, 2011 at 09:48:28AM +0100, Peter Korsgaard wrote:
> >>>>> "avictor" == avictor za@...il com <avictor.za@...il.com> writes:
> 
> Hi,
> 
>  >> How about at the same time renaming it to something a bit less
>  >> generic like macb_platform_data?
> 
>  avictor> The AT91RM9200 uses the same platform_data structure, but has a
>  avictor> different Ethernet peripheral (ie, not the MACB)
> 
>  avictor> The phy_irq_pin is used in the AT91RM9200 ethernet driver.
>  avictor> (drivers/net/arm/at91_ether.c)
> 
> That should probably be cleaned up as well then. Sharing platform_data
> structures between unrelated drivers seems like quite a mess to me.

Why should every driver have a separate platform data structure?
Is it right to end up with thousands of unique data structures each
specific to a particular driver?  To me, that sounds like a headache
waiting to happen.
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