netdev - Re: [PATCH 04/10] smc91x: add SMC91X

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Date:	Thu, 26 Jun 2008 19:54:46 -0400 (EDT)
From:	Nicolas Pitre <nico@....org>
To:	Eric Miao <eric.y.miao@...il.com>
Cc:	linux-arm-kernel <linux-arm-kernel@...ts.arm.linux.org.uk>,
	linux-netdev <netdev@...r.kernel.org>,
	Magnus Damm <magnus.damm@...il.com>,
	Eric Miao <eric.miao@...vell.com>
Subject: Re: [PATCH 04/10] smc91x: add SMC91X_NOWAIT flag to platform data

On Tue, 24 Jun 2008, Eric Miao wrote:

> From: Eric Miao <eric.miao@...vell.com>
> 
> And also favors the usage of SMC91X_NOWAIT over the hardcoded SMC_NOWAIT
> by converting "nowait" (module parameter overridable) to platform flag.
> 
> There are several possibilities:
> 
>   1. platform data present - preferred and use as is
>   2. platform data absent  - use "nowait", it can be:
>        a. SMC_NOWAIT if defined
>        b. default to 0 if SMC_NOWAIT isn't defined
>        c. overriden by module parameter
> 
> Signed-off-by: Eric Miao <eric.miao@...vell.com>

Acked-by: Nicolas Pitre <nico@....org>


> ---
>  drivers/net/smc91x.c   |    3 ++-
>  include/linux/smc91x.h |    2 ++
>  2 files changed, 4 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/net/smc91x.c b/drivers/net/smc91x.c
> index b57ee44..caa0308 100644
> --- a/drivers/net/smc91x.c
> +++ b/drivers/net/smc91x.c
> @@ -279,7 +279,7 @@ static void smc_reset(struct net_device *dev)
>  	 * can't handle it then there will be no recovery except for
>  	 * a hard reset or power cycle
>  	 */
> -	if (nowait)
> +	if (lp->cfg.flags & SMC91X_NOWAIT)
>  		cfg |= CONFIG_NO_WAIT;
>  
>  	/*
> @@ -2142,6 +2142,7 @@ static int smc_drv_probe(struct platform_device *pdev)
>  		lp->cfg.flags |= (SMC_CAN_USE_8BIT)  ? SMC91X_USE_8BIT  : 0;
>  		lp->cfg.flags |= (SMC_CAN_USE_16BIT) ? SMC91X_USE_16BIT : 0;
>  		lp->cfg.flags |= (SMC_CAN_USE_32BIT) ? SMC91X_USE_32BIT : 0;
> +		lp->cfg.flags |= (nowait) ? SMC91X_NOWAIT : 0;
>  	}
>  
>  	ndev->dma = (unsigned char)-1;
> diff --git a/include/linux/smc91x.h b/include/linux/smc91x.h
> index fc7682f..90434db 100644
> --- a/include/linux/smc91x.h
> +++ b/include/linux/smc91x.h
> @@ -5,6 +5,8 @@
>  #define SMC91X_USE_16BIT (1 << 1)
>  #define SMC91X_USE_32BIT (1 << 2)
>  
> +#define SMC91X_NOWAIT		(1 << 3)
> +
>  struct smc91x_platdata {
>  	unsigned long flags;
>  };
> -- 
> 1.5.4.3
> 


Nicolas
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