From: Jan Beulich <jbeulich@novell.com>
Date: Thu, 29 Mar 2007 09:27:14 +0000 (+0100)
Subject: [PATCH] kbuild: fix dependency generation
X-Git-Tag: v2.6.21-rc6~38
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c21b1e4d9b0c263a35f67eed2b025d053566c557;p=pandora-kernel.git

[PATCH] kbuild: fix dependency generation

Commit 2e3646e51b2d6415549b310655df63e7e0d7a080 changed the way the
split config tree is built, but failed to also adjust fixdep accordingly
- if changing a config option from or to m, files referencing the
respective CONFIG_..._MODULE (but not the corresponding CONFIG_...)
didn't get rebuilt.

The problem is that trisate symbol are represent with three different
symbols:
    SYMBOL=n => no symbol defined
    SYMBOL=y => CONFIG_SYMBOL defined to '1'
    SYMBOL=m => CONFIG_SYMBOL_MODULE defined to '1'

But conf_split_config do not distingush between the =y and =m case, so
only the =y case is honoured.

This is fixed in fixdep so when a CONFIG symbol with _MODULE is found we
skip that part and only look for the CONFIG_SYMBOL version.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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