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

[John Garry]

On 05/07/2024 13:16, Christoph Hellwig wrote:
> >   	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.

Ok, I can print a message, like:

	pr_warn("Invalid logical block size (%d)\n", bsize);

I am wary though that userspace could trigger this message from the 
various ioctls to set the bsize.

> > +/* blk_validate_limits() validates bsize, so drivers don't need to */
>
> maybe throw in a usually or normally?

fine