linux-kernel - Re: [patch 09/13] Remove efi=old

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Message-ID: <CAMj1kXFm+HVORRtTWJtVKorE8rDJGi6FDOr2ZXSA3+ZG4u=LnQ@mail.gmail.com>
Date:   Wed, 1 Jul 2020 17:24:21 +0200
From:   Ard Biesheuvel <ardb@...nel.org>
To:     Steve Wahl <steve.wahl@....com>
Cc:     Jonathan Corbet <corbet@....net>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        X86 ML <x86@...nel.org>, "H. Peter Anvin" <hpa@...or.com>,
        Darren Hart <dvhart@...radead.org>,
        Andy Shevchenko <andy@...radead.org>,
        Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Paul E. McKenney" <paulmck@...nel.org>,
        Pawan Gupta <pawan.kumar.gupta@...ux.intel.com>,
        Juergen Gross <jgross@...e.com>,
        Mike Kravetz <mike.kravetz@...cle.com>,
        Oliver Neukum <oneukum@...e.com>,
        Mike Travis <mike.travis@....com>,
        Dimitri Sivanich <dimitri.sivanich@....com>,
        Benjamin Thiel <b.thiel@...teo.de>,
        Andy Lutomirski <luto@...nel.org>,
        Arnd Bergmann <arnd@...db.de>,
        James Morris <jmorris@...ei.org>,
        David Howells <dhowells@...hat.com>,
        Kees Cook <keescook@...omium.org>,
        Dave Young <dyoung@...hat.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Logan Gunthorpe <logang@...tatee.com>,
        Alexandre Chartre <alexandre.chartre@...cle.com>,
        "Peter Zijlstra (Intel)" <peterz@...radead.org>,
        Austin Kim <austindh.kim@...il.com>,
        Alexey Dobriyan <adobriyan@...il.com>,
        Linux Doc Mailing List <linux-doc@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-efi <linux-efi@...r.kernel.org>,
        Russ Anderson <rja@....com>
Subject: Re: [patch 09/13] Remove efi=old_map command line option

On Wed, 1 Jul 2020 at 16:18, <steve.wahl@....com> wrote:
>
> As a part of UV1 platform removal, delete the efi=old_map option,
> which should no longer be needed.
>
> Signed-off-by: Steve Wahl <steve.wahl@....com>

Noting that the diffstat does not reflect the patch, but this is
explained in the cover letter.

Acked-by: Ard Biesheuvel <ardb@...nel.org>

> ---
>  Documentation/admin-guide/kernel-parameters.txt |    4 +---
>  arch/x86/platform/uv/bios_uv.c                  |   14 --------------
>  2 files changed, 1 insertion(+), 17 deletions(-)
>
> --- linux.orig/arch/x86/platform/uv/bios_uv.c   2020-06-18 16:26:33.963087219 -0500
> +++ linux/arch/x86/platform/uv/bios_uv.c        2020-06-25 09:53:43.013835162 -0500
> @@ -356,17 +356,3 @@ void __iomem *__init efi_ioremap(unsigne
>
>         return (void __iomem *)__va(phys_addr);
>  }
> -
> -static int __init arch_parse_efi_cmdline(char *str)
> -{
> -       if (!str) {
> -               pr_warn("need at least one option\n");
> -               return -EINVAL;
> -       }
> -
> -       if (!efi_is_mixed() && parse_option_str(str, "old_map"))
> -               set_bit(EFI_UV1_MEMMAP, &efi.flags);
> -
> -       return 0;
> -}
> -early_param("efi", arch_parse_efi_cmdline);
>