linux-kernel - Re: Fwd: Need NVME QUIRK BOGUS for SAMSUNG MZ1WV480HCGL-000MV (Samsung SM-953 Datacenter SSD)

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Date:   Wed, 12 Jul 2023 18:57:21 +0200
From:   Christoph Hellwig <hch@....de>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Christoph Hellwig <hch@....de>,
        Linux regressions mailing list <regressions@...ts.linux.dev>,
        Pankaj Raghav <p.raghav@...sung.com>,
        Keith Busch <kbusch@...nel.org>,
        Bagas Sanjaya <bagasdotme@...il.com>,
        Jens Axboe <axboe@...nel.dk>, Sagi Grimberg <sagi@...mberg.me>,
        "Clemens S." <cspringsguth@...il.com>,
        Martin Belanger <martin.belanger@...l.com>,
        Chaitanya Kulkarni <kch@...dia.com>,
        John Meneghini <jmeneghi@...hat.com>,
        Hannes Reinecke <hare@...e.de>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux NVMe <linux-nvme@...ts.infradead.org>,
        Kanchan Joshi <joshi.k@...sung.com>,
        Javier Gonzalez <javier.gonz@...sung.com>,
        박진환 <jh.i.park@...sung.com>
Subject: Re: Fwd: Need NVME QUIRK BOGUS for SAMSUNG MZ1WV480HCGL-000MV
 (Samsung SM-953 Datacenter SSD)

On Wed, Jul 12, 2023 at 09:51:52AM -0700, Linus Torvalds wrote:
> On Wed, 12 Jul 2023 at 09:45, Christoph Hellwig <hch@....de> wrote:
> >
> > On Tue, Jul 11, 2023 at 09:47:00AM -0700, Linus Torvalds wrote:
> >
> > > and we have NEVER EVER seen devices with reliably unique IDs. Really.
> >
> > Sorry, but that's bullshit.
> 
> Christoph, you are *literally* involved in a discussion where this is the case.

Yes.  But that's not never ever.  Enterprise storage devices have been
pretty very good at it, because it is part of the purchase specs.

So don't claim NEVER EVER, which is just BS.  Claim we've been way
to optimistic in that even cheap devices would get something so
basic, and you're spot on.