Re: [PATCH 2/4] nvme-multipath: add the NVME_MULTIPATH_PARAM config option

[John Meneghini <jmeneghi@redhat.com>]

On 3/5/25 9:33 AM, Christoph Hellwig wrote:
> On Thu, Feb 27, 2025 at 10:25:39PM -0500, John Meneghini wrote:
>> The NVME_MULTIPATH_PARAM option controls the core.nvme_multipath module
>> parameter. When NVME_MULTIPATH_PARAM=n the multipath parameter is removed
>> and core nvme multipathing is enabled. When NVME_MULTIPATH_PARAM=y
>> the multipath parameter is added and multipath support becomes
>> configurable with the core.nvme_multipath parameter.
> 
> What's the point of adding yet another confusing option?

If you'll read the kConfig description, hopefully it's not confusing.

The whole point of this patch series is to remove the core.nvme_mulipath parameter.

This is what the patch at: https://lore.kernel.org/linux-nvme/20250204211158.43126-1-bgurney@redhat.com/
does, and this is what this patch does. Since people didn't want to remove core.nvme_multipath parameter
in  https://lore.kernel.org/linux-nvme/20250204211158.43126-1-bgurney@redhat.com/ I've proposed this
patch as an alternative.

It provides a kConfig option to remove the core.nvme_multipath parameter so those who want it
can keep it, and those who don't and compile it out.

/John