Re: libata passthru: support PIO multi commands

[Alan Cox]

> +	if (is_multi_taskfile(tf)) {
> +		unsigned int multi_count = 1 << (cdb[1] >> 5);
> +
> +		/* compare the passed through multi_count
> +		 * with the cached multi_count of libata
> +		 */
> +		if (multi_count != dev->multi_count)
> +			ata_dev_printk(dev, KERN_WARNING,
> +				       "invalid multi_count %u ignored\n",
> +				       multi_count);
> +	}

What limits log spamming here ? Also shouldn't we error this
situation not proceed and hope that enough data was supplied not
to leave us stuck half way through a command having made a nasty
mess on disk ?
	
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