[PATCH v2] nvme-auth: Don't propose NVME_AUTH_DHGROUP_NULL with SC_C

[Keith Busch]

On Mon, Mar 09, 2026 at 02:27:33PM +1000, alistair23 at gmail.com wrote:
> From: Alistair Francis <alistair.francis at wdc.com>
> 
> Section 8.3.4.5.2 of the NVMe 2.1 base spec states that
> 
> """
> The 00h identifier shall not be proposed in an AUTH_Negotiate message
> that requests secure channel concatenation (i.e., with the SC_C field
> set to a non-zero value).
> """
> 
> We need to ensure that we don't set the NVME_AUTH_DHGROUP_NULL idlist if
> SC_C is set.

Thanks, applied.