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From: Dan Williams <dan.j.williams@intel.com>
To: PJ Waskiewicz <ppwaskie@kernel.org>,
	Dan Williams <dan.j.williams@intel.com>,
	Bjorn Helgaas <helgaas@kernel.org>
Cc: <linux-cxl@vger.kernel.org>, <linux-pci@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 1/1] cxl/acpi.c: Add buggy BIOS hint for CXL ACPI lookup failure
Date: Wed, 1 May 2024 08:47:24 -0700	[thread overview]
Message-ID: <6632640bef65a_10c21294e3@dwillia2-mobl3.amr.corp.intel.com.notmuch> (raw)
In-Reply-To: <f5078550384a6b9be5a6d05415ea321332c7fb96.camel@kernel.org>

PJ Waskiewicz wrote:
> Buggy BIOS, that above value resolves to CX02.  In fact, it *should* be
> 49.  This is very much a bug in the ACPI arena.

Ok, so back to this patch in question, my concern with upgrading:

    dev_err(dev, "unable to retrieve _UID\n");

...to say "potentially buggy BIOS", is that same charge could be levied
against all of the dev_warn() and dev_err() instances in
drivers/cxl/acpi.c. So, it's not clear to me that cxl_acpi driver
failures need to be more explicit.

Otherwise, pretty much any ACPI hiccup message in the kernel would be
candidate for claiming "BIOS is busted".

  reply	other threads:[~2024-05-01 15:47 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-07 21:05 ppwaskie
2024-04-07 21:28 ` Lukas Wunner
2024-04-08  2:03   ` PJ Waskiewicz
2024-04-08  8:34     ` Jonathan Cameron
2024-04-08 19:29       ` PJ Waskiewicz
2024-04-08 20:45         ` Dan Williams
2024-04-08 21:32           ` PJ Waskiewicz
2024-04-09  4:22             ` PJ Waskiewicz
2024-04-08 16:54 ` Dan Williams
2024-04-08 19:25   ` PJ Waskiewicz
2024-04-09 13:22 ` Bjorn Helgaas
2024-04-29  5:57   ` PJ Waskiewicz
2024-04-29 15:31     ` Bjorn Helgaas
2024-04-29 18:35       ` Dan Williams
2024-05-01 15:28         ` PJ Waskiewicz
2024-05-01 15:47           ` Dan Williams [this message]
2024-05-02 17:34             ` PJ Waskiewicz
2024-05-02 18:29               ` Dan Williams
2024-05-01 17:54           ` Bjorn Helgaas
2024-05-02 17:30             ` PJ Waskiewicz

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