[bug report] most of blktests nvme/ failed on the latest linux tree

[Sagi Grimberg]

> Hello
> 
> I found this failure on the latest linux tree, and it cannot be
> reproduced on v6.4,
> it should be one regression recently merged to linux tree after v6.4.
> I check the commit recently merged after v6.4, and found below commit
> touched the related code, not sure if it was introduced by this
> commit.
> 
> commit 959ffef13bac792e4e2e3321d6e2bd2b00c0f5f9
> Author: Chaitanya Kulkarni <kch at nvidia.com>
> Date:   Thu Jun 1 23:47:42 2023 -0700
> 
>      nvme-fabrics: open code __nvmf_host_find()

That just moved code, no functional change,
most likely the below was the offender:
ae8bd606e09b ("nvme-fabrics: prevent overriding of existing host")