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From: Nick Bowler <nbowler@elliptictech.com>
To: oskar.andero@sonyericsson.com
Cc: linux@arm.linux.org.uk, nicolas.pitre@linaro.org,
	will.deacon@arm.com, eric.y.miao@gmail.com,
	catalin.marinas@arm.com, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	Victor Boivie <victor.boivie@sonyericsson.com>
Subject: Re: [PATCH] ARM: Allow for kernel command line concatenation
Date: Thu, 7 Apr 2011 09:18:10 -0400	[thread overview]
Message-ID: <20110407131810.GA6450@elliptictech.com> (raw)
In-Reply-To: <1302164236-1516-1-git-send-email-oskar.andero@sonyericsson.com>

On 2011-04-07 10:17 +0200, oskar.andero@sonyericsson.com wrote:
> From: Victor Boivie <victor.boivie@sonyericsson.com>
> 
> This patch allows the provided CONFIG_CMDLINE to be concatenated
> with the one provided by the boot loader. This is useful to
> merge the static values defined in CONFIG_CMDLINE with the
> boot loader's (possibly) more dynamic values, such as startup
> reasons and more.

This sounds very useful!  One comment below.

> Signed-off-by: Victor Boivie <victor.boivie@sonyericsson.com>
> Reviewed-by: Bjorn Andersson <bjorn.andersson@sonyericsson.com>
> Signed-off-by: Oskar Andero <oskar.andero@sonyericsson.com>
> ---
>  arch/arm/Kconfig        |   21 +++++++++++++++++++--
>  arch/arm/kernel/setup.c |    9 ++++++++-
>  2 files changed, 27 insertions(+), 3 deletions(-)
> 
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
[...]
> +config CMDLINE_EXTEND
> +	bool "Extend bootloader kernel arguments"
> +	depends on CMDLINE != ""
> +	help
> +	  The default kernel command string will be concatenated with the
> +	  arguments provided by the boot loader.

Since concatenation is not commutative, this help text should describe
exactly the order in which the arguments are concatenated.  How about
this instead:

  The command-line arguments provided by the boot loader will be
  appended to the default kernel command string.

-- 
Nick Bowler, Elliptic Technologies (http://www.elliptictech.com/)

  parent reply	other threads:[~2011-04-07 13:18 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-04-07  8:17 [PATCH] ARM: Allow for kernel command line concatenation oskar.andero
2011-04-07  9:01 ` Uwe Kleine-König
2011-04-07 10:35 ` Paul Bolle
2011-04-07 10:58   ` Uwe Kleine-König
2011-04-07 11:38     ` Boivie, Victor
2011-04-07 13:18 ` Nick Bowler [this message]
2011-04-07 13:22   ` Boivie, Victor
2011-04-07 11:47 oskar.andero
2011-04-07 13:29 oskar.andero
2011-04-07 18:50 ` Nicolas Pitre
2011-04-07 19:15 ` Uwe Kleine-König
2011-04-08  9:36 oskar.andero
2011-05-04 15:03 ` oskar.andero
2011-05-04 15:11   ` Uwe Kleine-König
2011-05-04 16:10     ` oskar.andero

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