linux-kernel - Re: block/bsg.c

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Message-ID: <469D52D1.1000803@garzik.org>
Date:	Tue, 17 Jul 2007 19:37:53 -0400
From:	Jeff Garzik <jeff@...zik.org>
To:	James Bottomley <James.Bottomley@...elEye.com>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	Jens Axboe <jens.axboe@...cle.com>,
	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>,
	linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org
Subject: Re: block/bsg.c

James Bottomley wrote:
> @@ -1052,9 +1054,10 @@ int generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device
>  	int err, (*setfunc)(ide_drive_t *, int);
>  	u8 *val;
>  
> -	err = scsi_cmd_ioctl(file, bdev->bd_disk->queue, bdev->bd_disk, cmd, p);
> -	if (err != -ENOTTY)
> -		return err;
> +	switch (cmd) {
> +	case SG_IO:
> +		return scsi_cmd_ioctl(file, bdev->bd_disk->queue, bdev->bd_disk, cmd, p);
> +	}
>  
>  	switch (cmd) {
>  	case HDIO_GET_32BIT:	    val = &drive->io_32bit;	 goto read_val;


At that point you might as well use an 'if'.

But overall -- agreed.  ACK.

	Jeff


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