linux-kernel - Re: [PATCH] bootup: Add built-in kernel command line for x86

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Message-ID: <489A2DCD.8020804@zytor.com>
Date:	Wed, 06 Aug 2008 16:03:41 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Tim Bird <tim.bird@...sony.com>
CC:	Robert Schwebel <r.schwebel@...gutronix.de>,
	linux kernel <linux-kernel@...r.kernel.org>,
	linux-embedded <linux-embedded@...r.kernel.org>,
	Matt Mackall <mpm@...enic.com>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH] bootup: Add built-in kernel command line for x86

Tim Bird wrote:
> 
>> CONFIG_CMDLINE_OVERRIDE is probably more palatable to other architectures.
> 
> I'd be OK implementing it with an option, rather than a magic char.
> I was trying to avoid adding too many options, since many kernel
> developers prefer fewer options where possible.  But the magic
> char makes the code less straightforward.
> 
> If we ever move towards supporting both prefix and suffice splicing (or
> even complicated in-the-middle splicing), then the magic char is
> easier to develop into that.  But so far, I can only come up with
> reasonable cases for append and override, and I don't want to add
> superfluous handling for non-existent use cases.

I think I agree, and the override option would make it easier to make 
generic.

	-hpa

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