[PATCH] sata: fsl: save irqs while coalescing

[Scott Wood]

On Mon, 2013-08-19 at 12:15 -0600, Anthony Foiani wrote:
> diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c
> index 19720a0..851bd3f 100644
> --- a/drivers/ata/sata_fsl.c
> +++ b/drivers/ata/sata_fsl.c
> @@ -293,6 +293,7 @@ static void fsl_sata_set_irq_coalescing(struct ata_host *host,
>  {
>  	struct sata_fsl_host_priv *host_priv = host->private_data;
>  	void __iomem *hcr_base = host_priv->hcr_base;
> +	unsigned long flags;
>  
>  	if (count > ICC_MAX_INT_COUNT_THRESHOLD)
>  		count = ICC_MAX_INT_COUNT_THRESHOLD;
> @@ -305,12 +306,12 @@ static void fsl_sata_set_irq_coalescing(struct ata_host *host,
>  			(count > ICC_MIN_INT_COUNT_THRESHOLD))
>  		ticks = ICC_SAFE_INT_TICKS;
>  
> -	spin_lock(&host->lock);
> +	spin_lock_irqsave(&host->lock, flags);
>  	iowrite32((count << 24 | ticks), hcr_base + ICC);
>  
>  	intr_coalescing_count = count;
>  	intr_coalescing_ticks = ticks;
> -	spin_unlock(&host->lock);
> +	spin_unlock_irqrestore(&host->lock, flags);

This should go to the SATA list and maintainer.

-Scott