linux-kernel - Re: [PATCH] x86/efi: Remove references of EFI earlyprintk from documentation

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Message-ID: <87bkxfebsu.fsf@meer.lwn.net>
Date:   Tue, 05 Apr 2022 10:26:41 -0600
From:   Jonathan Corbet <corbet@....net>
To:     Akihiko Odaki <akihiko.odaki@...il.com>
Cc:     linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
        linux-efi@...r.kernel.org, x86@...nel.org,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        "H . Peter Anvin" <hpa@...or.com>,
        Akihiko Odaki <akihiko.odaki@...il.com>,
        Ard Biesheuvel <ardb@...nel.org>
Subject: Re: [PATCH] x86/efi: Remove references of EFI earlyprintk from
 documentation

Akihiko Odaki <akihiko.odaki@...il.com> writes:

> x86 EFI earlyprink was removed with commit 69c1f396f25b ("efi/x86:
> Convert x86 EFI earlyprintk into generic earlycon implementation").

So I will confess that I don't know this area well enough to know
whether this patch makes sense or not.  To help with that, it would have
been good to CC Ard, who is the author of the patch you cite above.
Adding him now.

Ard, do you agree with this change (preserved below)?

Thanks,

jon

> Signed-off-by: Akihiko Odaki <akihiko.odaki@...il.com>
> ---
>  Documentation/admin-guide/kernel-parameters.txt | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
> index f5a27f067db9..fb39337f4123 100644
> --- a/Documentation/admin-guide/kernel-parameters.txt
> +++ b/Documentation/admin-guide/kernel-parameters.txt
> @@ -1252,7 +1252,7 @@
>  			Append ",keep" to not disable it when the real console
>  			takes over.
>  
> -			Only one of vga, efi, serial, or usb debug port can
> +			Only one of vga, serial, or usb debug port can
>  			be used at a time.
>  
>  			Currently only ttyS0 and ttyS1 may be specified by
> @@ -1267,7 +1267,7 @@
>  			Interaction with the standard serial driver is not
>  			very good.
>  
> -			The VGA and EFI output is eventually overwritten by
> +			The VGA output is eventually overwritten by
>  			the real console.
>  
>  			The xen option can only be used in Xen domains.
> -- 
> 2.35.1