linux-kernel - Re: [PATCH 04/18] ide: remove ide_setup

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Date:	Sat, 21 Jun 2008 02:03:16 +0400
From:	Sergei Shtylyov <sshtylyov@...mvista.com>
To:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
Cc:	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 04/18] ide: remove ide_setup_dma()

Hello.

Bartlomiej Zolnierkiewicz wrote:
> Export sff_dma_ops and then remove ide_setup_dma().
>
> There should be no functional changes caused by this patch.
>
> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
>
>   
[...]
> Index: b/drivers/ide/arm/palm_bk3710.c
> ===================================================================
> --- a/drivers/ide/arm/palm_bk3710.c
> +++ b/drivers/ide/arm/palm_bk3710.c
> @@ -318,15 +318,14 @@ static u8 __devinit palm_bk3710_cable_de
>  static int __devinit palm_bk3710_init_dma(ide_hwif_t *hwif,
>  					  const struct ide_port_info *d)
>  {
> -	unsigned long base =
> -		hwif->io_ports.data_addr - IDE_PALM_ATA_PRI_REG_OFFSET;
> -
>  	printk(KERN_INFO "    %s: MMIO-DMA\n", hwif->name);
>  
>  	if (ide_allocate_dma_engine(hwif))
>  		return -1;
>  
> -	ide_setup_dma(hwif, base);
> +	hwif->dma_base = hwif->io_ports.data_addr - IDE_PALM_ATA_PRI_REG_OFFSET;
>   

   That's er... too complex. Actually, 'base' has the value for 
'dma_base' at that moment...

WBR, Sergei


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