linux-kernel - Re: [PATCH V3 07/10] Secure boot: Add a dummy kernel parameter that will switch on Secure Boot mode

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Message-ID: <20121030174848.GD6627@hansolo.jdub.homelinux.org>
Date:	Tue, 30 Oct 2012 13:48:48 -0400
From:	Josh Boyer <jwboyer@...hat.com>
To:	joeyli <jlee@...e.com>
Cc:	linux-kernel@...r.kernel.org,
	linux-security-module@...r.kernel.org, linux-efi@...r.kernel.org,
	Greg KH <gregkh@...uxfoundation.org>,
	Matthew Garrett <mjg@...hat.com>, tiwai@...e.de
Subject: Re: [PATCH V3 07/10] Secure boot: Add a dummy kernel parameter that
 will switch on Secure Boot mode

On Mon, Oct 29, 2012 at 05:00:06PM +0800, joeyli wrote:
> Hi Josh, 
> Tahashi has a good idea for use strtobool to allow
> 'secureboot_enable=yes' works. Please consider the following change.
> 
> 
> Thanks a lot!
> Joey Lee
> 
> >From f6841a476f3d332fe7b04cb716e0b518cccd5055 Mon Sep 17 00:00:00 2001
> From: Lee, Chun-Yi <jlee@...e.com>
> Date: Mon, 29 Oct 2012 16:36:57 +0800
> Subject: [PATCH] efi: more user-friendly secureboot_enable parameter
> 
> From: Takashi Iwai <tiwai@...e.de>
> 
> Use strtobool can allow 'secureboot_enable=yes', it's more user-friendly.
> 
> Signed-off-by: Lee, Chun-Yi <jlee@...e.com>
> ---
>  kernel/cred.c |    5 +++--
>  1 files changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/kernel/cred.c b/kernel/cred.c
> index 3f5be65..70897a2 100644
> --- a/kernel/cred.c
> +++ b/kernel/cred.c
> @@ -633,9 +633,10 @@ void __init secureboot_enable()
>  /* Dummy Secure Boot enable option to fake out UEFI SB=1 */
>  static int __init secureboot_enable_opt(char *str)
>  {
> -	int sb_enable = !!simple_strtol(str, NULL, 0);
> -	if (sb_enable)
> +	bool sb_enable;
> +	if (!strtobool(str, &sb_enable) && sb_enable)
>  		secureboot_enable();
> +
>  	return 1;
>  }
>  __setup("secureboot_enable=", secureboot_enable_opt);

This seems like a good change to me.  If you don't mind, I'll rework the
existing patch to do this since it hasn't been accepted upstream yet and
give Takashi-san and you appropriate credit in the commit log.

josh
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