linux-kernel - Re: [PATCH] x86_64 built-in command line

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Message-ID: <20060801014319.GO6908@waste.org>
Date:	Mon, 31 Jul 2006 20:43:19 -0500
From:	Matt Mackall <mpm@...enic.com>
To:	Andi Kleen <ak@...e.de>
Cc:	"H. Peter Anvin" <hpa@...or.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...l.org>
Subject: Re: [PATCH] x86_64 built-in command line

On Tue, Aug 01, 2006 at 12:17:00AM +0200, Andi Kleen wrote:
> On Monday 31 July 2006 22:41, H. Peter Anvin wrote:
> > Andi Kleen wrote:
> > >   
> > >> +#ifdef CONFIG_CMDLINE_BOOL
> > >> +	strlcpy(saved_command_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
> > >> +#endif
> > > 
> > > I think I would prefer a strcat.
> > > 
> > > Also you should describe the exact behaviour (override/append) in Kconfig help.
> > > 
> > 
> > In the i386 thread, Matt described having a firmware bootloader which 
> > passes bogus parameters.  For that case, it would make sense to have a 
> > non-default CONFIG option to have override rather than conjoined (and I 
> > maintain that the built-in command line should be prepended.)
> 
> Is that boot loader common? What's its name? 
> If not I would prefer that he keeps the one liner patch to deal
> with that private.
> 
> For generic semantics strcat (or possible prepend) is probably better.

No, it doesn't work for numerous kernel options that can't be negated.

-- 
Mathematics is the supreme nostalgia of our time.
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