Re: [PATCH 08/14] scsi: sd: Optimal I/O size should be a multiple of reported granularity

[Bart Van Assche <bvanassche@xxxxxxx>]

On 3/1/22 21:35, Martin K. Petersen wrote:
> +	if (min_xfer_bytes && opt_xfer_bytes & (min_xfer_bytes - 1)) {
> +		sd_first_printk(KERN_WARNING, sdkp,
> +				"Optimal transfer size %u bytes not a " \
> +				"multiple of preferred minimum block " \
> +				"size (%u bytes)\n",
> +				opt_xfer_bytes, min_xfer_bytes);
> +		return false;
> +	}

Hmm ... what guarantees that min_xfer_bytes is a power of two? Did I perhaps 
overlook something?

Thanks,

Bart.