commit e062781397e5bebc6c1b8dd4bf466136e13ae4c5
author Yann E. MORIN <yann.morin.1998@free.fr> Tue Sep 03 22:22:26 2013 +0200
committer Michal Marek <mmarek@suse.cz> Thu Sep 05 11:10:08 2013 +0200
tree 0d0a9232e2480a8a2c2d7f3931697c63ce7da847
parent c80de52d30304a4de296e687665b5d18a9026942

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>