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From: Russell King <rmk+lkml@arm.linux.org.uk>
To: "Robert P. J. Day" <rpjday@mindspring.com>
Cc: Linux kernel mailing list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] Remove logically superfluous comparisons from Kconfig files.
Date: Mon, 18 Dec 2006 10:26:53 +0000	[thread overview]
Message-ID: <20061218102653.GA23947@flint.arm.linux.org.uk> (raw)
In-Reply-To: <Pine.LNX.4.64.0612180509010.22527@localhost.localdomain>

On Mon, Dec 18, 2006 at 05:14:01AM -0500, Robert P. J. Day wrote:
>   Remove Kconfig comparisons of the form FUBAR || FUBAR=n, since they
> appear to be superfluous.

config FOO
	tristate 'foo'
	depends on BAR || BAR=n

is not superfluous.  The allowed states for FOO with the above construct
are (assuming modules are enabled):

	BAR	FOO
	Y	Y,M,N
	M	M,N
	N	Y,M,N

Also, you create some constructs such as:

        depends on && PCI

which is obviously wrong.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:

  reply	other threads:[~2006-12-18 10:27 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-12-18 10:14 [PATCH] Remove logically superfluous comparisons from Kconfig files Robert P. J. Day
2006-12-18 10:26 ` Russell King [this message]
2006-12-18 10:28   ` Robert P. J. Day
2006-12-27 13:03 ` Horst H. von Brand
2006-12-27 23:38   ` Robert P. J. Day

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