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From: Michael Ellerman <mpe@ellerman•id.au>
To: Arnd Bergmann <arnd@kernel•org>,
	linux-fbdev@vger•kernel.org,
	Thomas Zimmermann <tzimmermann@suse•de>,
	Helge Deller <deller@gmx•de>,
	Javier Martinez Canillas <javierm@redhat•com>
Cc: linux-hyperv@vger•kernel.org, x86@kernel•org,
	linux-ia64@vger•kernel.org, linux-sh@vger•kernel.org,
	Catalin Marinas <catalin.marinas@arm•com>,
	Linus Walleij <linus.walleij@linaro•org>,
	Dave Hansen <dave.hansen@linux•intel.com>,
	dri-devel@lists•freedesktop.org, linux-mips@vger•kernel.org,
	Max Filippov <jcmvbkbc@gmail•com>,
	linux-efi@vger•kernel.org, Guo Ren <guoren@kernel•org>,
	linux-csky@vger•kernel.org, sparclinux@vger•kernel.org,
	linux-hexagon@vger•kernel.org, WANG Xuerui <kernel@xen0n•name>,
	"K. Y. Srinivasan" <kys@microsoft•com>,
	David Airlie <airlied@gmail•com>,
	Ard Biesheuvel <ardb@kernel•org>, Wei Liu <wei.liu@kernel•org>,
	Will Deacon <will@kernel•org>,
	Huacai Chen <chenhuacai@kernel•org>,
	Dexuan Cui <decui@microsoft•com>,
	Russell King <linux@armlinux•org.uk>,
	Deepak Rawat <drawat.floss@gmail•com>,
	Ingo Molnar <mingo@redhat•com>, Matt Turner <mattst88@gmail•com>,
	Arnd Bergmann <arnd@arndb•de>,
	Haiyang Zhang <haiyangz@microsoft•com>,
	Nicholas Piggin <npiggin@gmail•com>,
	Bor islav Petkov <bp@alien8•de>,
	loongarch@lists•linux.dev,
	John Paul Adrian Glaubitz <glaubitz@physik•fu-berlin.de>,
	Thomas Gleixner <tglx@linutronix•de>,
	linux-arm-kernel@lists•infradead.org,
	Khalid Aziz <khalid@gonehiking•org>,
	Brian Cain <bcain@quicinc•com>,
	Thomas Bogendoerfer <tsbogend@alpha•franken.de>,
	Greg Kroah-Hartman <gregkh@linuxfoundation•org>,
	linux-kernel@vger•kernel.org, Dinh Nguyen <dinguyen@kernel•org>,
	linux-riscv@lists•infradead.org,
	Palmer Dabbelt <palmer@dabbelt•com>,
	Daniel Vetter <daniel@ffwll•ch>,
	linux-alpha@vger•kernel.org, linuxppc-dev@lists•ozlabs.org,
	"David S. Miller" <davem@davemloft•net>
Subject: Re: [PATCH v2 1/9] vgacon: rework Kconfig dependencies
Date: Fri, 21 Jul 2023 14:59:24 +1000	[thread overview]
Message-ID: <87pm4lj1w3.fsf@mail.lhotse> (raw)
In-Reply-To: <20230719123944.3438363-2-arnd@kernel.org>

Arnd Bergmann <arnd@kernel•org> writes:
> From: Arnd Bergmann <arnd@arndb•de>
>
> The list of dependencies here is phrased as an opt-out, but this is missing
> a lot of architectures that don't actually support VGA consoles, and some
> of the entries are stale:
>
>  - powerpc used to support VGA consoles in the old arch/ppc codebase, but
>    the merged arch/powerpc never did

Not disputing this, but how did you come to that conclusion? I grepped
around and couldn't convince myself whether it can work on powerpc or
not. ie. currently it's possible to enable CONFIG_VGA_CONSOLE and
powerpc does have a struct screen_info defined which seems like it would
allow vgacon_startup() to complete.

My only concern is that someone could be using it with Qemu?

cheers

  parent reply	other threads:[~2023-07-21  5:00 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-07-19 12:39 [PATCH v2 0/9] video: screen_info cleanups Arnd Bergmann
2023-07-19 12:39 ` [PATCH v2 1/9] vgacon: rework Kconfig dependencies Arnd Bergmann
2023-07-20 18:48   ` Khalid Aziz
2023-07-21  4:59   ` Michael Ellerman [this message]
2023-07-21  8:26     ` Arnd Bergmann
2023-07-24 12:07       ` Geert Uytterhoeven
2023-07-19 12:39 ` [PATCH v2 2/9] vgacon: rework screen_info #ifdef checks Arnd Bergmann
2023-07-20 18:49   ` Khalid Aziz
2023-07-19 12:39 ` [PATCH v2 3/9] dummycon: limit Arm console size hack to footbridge Arnd Bergmann
2023-07-19 12:39 ` [PATCH v2 4/9] vgacon, arch/*: remove unused screen_info definitions Arnd Bergmann
2023-07-19 13:34   ` Philippe Mathieu-Daudé
2023-07-19 12:39 ` [PATCH v2 5/9] vgacon: remove screen_info dependency Arnd Bergmann
2023-07-19 13:49   ` Javier Martinez Canillas
2023-07-19 13:49   ` Philippe Mathieu-Daudé
2023-07-19 14:38     ` Arnd Bergmann
2023-07-20 18:51   ` Khalid Aziz
2023-07-19 12:39 ` [PATCH v2 6/9] vgacon: clean up global screen_info instances Arnd Bergmann
2023-07-19 14:17   ` Javier Martinez Canillas
2023-07-20 18:53   ` Khalid Aziz
2023-07-19 12:39 ` [PATCH v2 7/9] vga16fb: drop powerpc support Arnd Bergmann
2023-07-19 14:23   ` Javier Martinez Canillas
2023-07-19 12:39 ` [PATCH v2 8/9] hyperv: avoid dependency on screen_info Arnd Bergmann
2023-07-19 14:25   ` Javier Martinez Canillas
2023-07-19 12:39 ` [PATCH v2 9/9] efi: move screen_info into efi init code Arnd Bergmann
2023-07-19 13:19   ` Ard Biesheuvel
2023-07-19 14:35   ` Javier Martinez Canillas
2023-07-19 14:57 ` [PATCH v2 0/9] video: screen_info cleanups Helge Deller

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