netdev - Re: [patch 2/2] drivers/net/stmmac/: add HAS

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Date:	Tue, 5 Oct 2010 12:46:49 +0200
From:	Peppe CAVALLARO <peppe.cavallaro@...com>
To:	David Miller <davem@...emloft.net>
Cc:	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"schwidefsky@...ibm.com" <schwidefsky@...ibm.com>,
	"heiko.carstens@...ibm.com" <heiko.carstens@...ibm.com>
Subject: Re: [patch 2/2] drivers/net/stmmac/: add HAS_IOMEM dependency

Hello

On 10/04/2010 07:00 AM, David Miller wrote:
> From: akpm@...ux-foundation.org
> Date: Fri, 01 Oct 2010 14:17:13 -0700
> 
>  > From: Martin Schwidefsky <schwidefsky@...ibm.com>
>  >
>  > The stmmac driver does not compile on s390:
>  >
>  > drivers/net/stmmac/stmmac_main.c: In function 'stmmac_adjust_link':
>  > drivers/net/stmmac/stmmac_main.c:210: error: implicit declaration of function 
> 'readl'
>  > drivers/net/stmmac/stmmac_main.c:263: error: implicit declaration of function 
> 'writel'
>  > drivers/net/stmmac/stmmac_main.c: In function 'stmmac_dvr_probe':
>  > drivers/net/stmmac/stmmac_main.c:1674: error: implicit declaration of 
> function 'ioremap'
>  > drivers/net/stmmac/stmmac_main.c:1674: warning: assignment makes pointer from 
> integer without a cast
>  > drivers/net/stmmac/stmmac_main.c:1761: error: implicit declaration of 
> function 'iounmap'
>  > make[3]: *** [drivers/net/stmmac/stmmac_main.o] Error 1
>  >
>  > Signed-off-by: Martin Schwidefsky <schwidefsky@...ibm.com>
>  > Cc: Giuseppe CAVALLARO <peppe.cavallaro@...com>
>  > Cc: David S. Miller <davem@...emloft.net>
>  > Cc: Heiko Carstens <heiko.carstens@...ibm.com>
>  > Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
> 
> This got fixed by adding a dependency on CPU_SUBTYPE_ST40.

This dependency was removed in driver included in net-next Git (because
the CPU_SUBTYPE_ST40 is a dead option).

I've seen that other drivers depend on HAS_IOMEM that is always  defined
for STM and ARM targets (where the I know the stmmac is used); No
problem for me to add this new dependency to in HAS_IOMEM the stmmac's
Kconfig if actually needed.

Regards
Peppe
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