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Date:	Sun, 30 May 2010 13:35:51 -0400
From:	Jeff Garzik <jeff@...zik.org>
To:	davem@...emloft.net, romieu@...zoreil.com, netdev@...r.kernel.org
Subject: Re: [Patch]8139too: remove unnecessary cast of ioread32()'s return
 value

On 05/30/2010 08:22 AM, Junchang Wang wrote:
> ioread32() returns a 32-bit integer on all platforms.
> There is no need to cast its return value.
>
> Signed-off-by: Junchang Wang<junchangwang@...il.com>
> ---
>   drivers/net/8139too.c |    8 ++++----
>   1 files changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/net/8139too.c b/drivers/net/8139too.c
> index 4ba7293..cc7d462 100644
> --- a/drivers/net/8139too.c
> +++ b/drivers/net/8139too.c
> @@ -662,7 +662,7 @@ static const struct ethtool_ops rtl8139_ethtool_ops;
>   /* read MMIO register */
>   #define RTL_R8(reg)		ioread8 (ioaddr + (reg))
>   #define RTL_R16(reg)		ioread16 (ioaddr + (reg))
> -#define RTL_R32(reg)		((unsigned long) ioread32 (ioaddr + (reg)))
> +#define RTL_R32(reg)		ioread32 (ioaddr + (reg))

Have you verified this matches all architectures definition of readl()?

	Jeff



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