Re: [PATCH 2/5] block: Validate logical block size in blk_validate_limits()

[Christoph Hellwig]

>  	if (!lim->logical_block_size)
>  		lim->logical_block_size = SECTOR_SIZE;
> +	else if (blk_validate_block_size(lim->logical_block_size))
> +		return -EINVAL;

This should print a message.  Unfortunately we don't have the device
name here (for that we'd need to set it at disk/queue allocation time,
which will require a bit of work), but even without that it will be
very useful.

> +/* blk_validate_limits() validates bsize, so drivers don't need to */

maybe throw in a usually or normally?