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From: Eric Biggers <ebiggers@kernel.org>
To: "Mario Limonciello (AMD)" <superm1@kernel.org>
Cc: mario.limonciello@amd.com, bhelgaas@google.com,
	tzimmermann@suse.de,
	"Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>,
	linux-pci@vger.kernel.org
Subject: Re: [PATCH v3] PCI/VGA: Select SCREEN_INFO on X86
Date: Mon, 13 Oct 2025 23:50:04 -0700	[thread overview]
Message-ID: <20251014065004.GA1635@sol> (raw)
In-Reply-To: <20251013220829.1536292-1-superm1@kernel.org>

On Mon, Oct 13, 2025 at 05:08:26PM -0500, Mario Limonciello (AMD) wrote:
> commit 337bf13aa9dda ("PCI/VGA: Replace vga_is_firmware_default() with
> a screen info check") introduced an implicit dependency upon SCREEN_INFO
> by removing the open coded implementation.
> 
> If a user didn't have CONFIG_SCREEN_INFO set vga_is_firmware_default()
> would now return false.  SCREEN_INFO is only used on X86 so add add a
> conditional select for SCREEN_INFO to ensure that the VGA arbiter works
> as intended.
> 
> Reported-by: Eric Biggers <ebiggers@kernel.org>
> Closes: https://lore.kernel.org/linux-pci/20251012182302.GA3412@sol/
> Suggested-by: Thomas Zimmermann <tzimmermann@suse.de>
> Fixes: 337bf13aa9dda ("PCI/VGA: Replace vga_is_firmware_default() with a screen info check")
> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
> Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org>

Tested-by: Eric Biggers <ebiggers@kernel.org>

- Eric

  reply	other threads:[~2025-10-14  6:51 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-10-13 22:08 [PATCH v3] PCI/VGA: Select SCREEN_INFO on X86 Mario Limonciello (AMD)
2025-10-14  6:50 ` Eric Biggers [this message]
2025-10-14  8:24 ` Thomas Zimmermann
2025-10-14 22:02   ` Mario Limonciello (AMD) (kernel.org)
2025-10-14 22:27 ` Bjorn Helgaas

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