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authorYann E. MORIN <yann.morin.1998@free.fr>2013-09-03 22:22:26 +0200
committerMichal Marek <mmarek@suse.cz>2013-09-05 11:10:08 +0200
commite062781397e5bebc6c1b8dd4bf466136e13ae4c5 (patch)
tree0d0a9232e2480a8a2c2d7f3931697c63ce7da847 /scripts/kconfig
parentc80de52d30304a4de296e687665b5d18a9026942 (diff)
downloadlinux-e062781397e5bebc6c1b8dd4bf466136e13ae4c5.tar.bz2
kconfig: do not allow more than one symbol to have 'option modules'
Previously, it was possible to have more than one symbol with the 'option modules' attached to them, although only the last one would in fact control tristates. Since this does not make much sense, only allow at most one symbol to control tristates. Note: it is still possible to have more than one symbol that control tristates, but indirectly: config MOD1 bool "mod1" select MODULES config MOD2 bool "mod2" select MODULES config MODULES bool option modules Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
Diffstat (limited to 'scripts/kconfig')
-rw-r--r--scripts/kconfig/menu.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c
index 3a9c67493260..c1d53200c306 100644
--- a/scripts/kconfig/menu.c
+++ b/scripts/kconfig/menu.c
@@ -199,6 +199,12 @@ void menu_add_option(int token, char *arg)
{
switch (token) {
case T_OPT_MODULES:
+ if (modules_sym)
+ zconf_error("symbol '%s' redefines option 'modules'"
+ " already defined by symbol '%s'",
+ current_entry->sym->name,
+ modules_sym->name
+ );
modules_sym = current_entry->sym;
break;
case T_OPT_DEFCONFIG_LIST: