linux-kernel - [PATCH 14/16] kconfig-allow-override.diff

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Message-ID: <Pine.LNX.4.61.0704012010250.12316@yvahk01.tjqt.qr>
Date:	Sun, 1 Apr 2007 20:17:32 +0200 (MEST)
From:	Jan Engelhardt <jengelh@...ux01.gwdg.de>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
cc:	Sam Ravnborg <sam@...nborg.org>, Andrew Morton <akpm@...l.org>
Subject: [PATCH 14/16] kconfig-allow-override.diff


Allow config variables in .config to override earlier ones in the same
file. In other words,

	# CONFIG_SECURITY is not defined
	CONFIG_SECURITY=y

will activate it. This makes it a bit easier to do

	(cat original-config myconfig myconfig2 ... >.config)

and run menuconfig as expected.

Already posted at http://lkml.org/lkml/2006/10/25/81
Signed-off-by: Jan Engelhardt <jengelh@....de>
Cc: Sam Ravnborg <sam@...nborg.org>

 confdata.c |   14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

Index: linux-2.6.21-rc5/scripts/kconfig/confdata.c
===================================================================
--- linux-2.6.21-rc5.orig/scripts/kconfig/confdata.c
+++ linux-2.6.21-rc5/scripts/kconfig/confdata.c
@@ -170,8 +170,7 @@ load:
 					sym->type = S_BOOLEAN;
 			}
 			if (sym->flags & def_flags) {
-				conf_warning("trying to reassign symbol %s", sym->name);
-				break;
+				conf_warning("override: reassigning to symbol %s", sym->name);
 			}
 			switch (sym->type) {
 			case S_BOOLEAN:
@@ -210,8 +209,7 @@ load:
 					sym->type = S_OTHER;
 			}
 			if (sym->flags & def_flags) {
-				conf_warning("trying to reassign symbol %s", sym->name);
-				break;
+				conf_warning("override: reassigning to symbol %s", sym->name);
 			}
 			switch (sym->type) {
 			case S_TRISTATE:
@@ -288,11 +286,9 @@ load:
 				}
 				break;
 			case yes:
-				if (cs->def[def].tri != no) {
-					conf_warning("%s creates inconsistent choice state", sym->name);
-					cs->flags &= ~def_flags;
-				} else
-					cs->def[def].val = sym;
+				if(cs->def[def].tri != no)
+					conf_warning("override: %s turns state choice", sym->name);
+				cs->def[def].val = sym;
 				break;
 			}
 			cs->def[def].tri = E_OR(cs->def[def].tri, sym->def[def].tri);
#<EOF>
-
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