kconfig: ignore select of unknown symbol

We have had warnings for a long time about select of unknow symbol
but the warnings does not really makes sense since we may
select a symbol that is relevant and defined in one
arch but not in another arch.
And as long as we do not use a common set of Kconfig files
for all archs lets just ignore this case.

Previously we have used this to find bad uses of
select but we need a more relaible method to do so.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Roman Zippel <zippel@linux-m68k.org>

1 files changed, 3 insertions, 6 deletions

diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c
index fdad17367f61..606ceb9e746e 100644
--- a/scripts/kconfig/menu.c
+++ b/scripts/kconfig/menu.c
@@ -203,12 +203,9 @@ void sym_check_prop(struct symbol *sym)
                                 prop_warn(prop,
                                     "config symbol '%s' uses select, but is "
                                     "not boolean or tristate", sym->name);
-                        else if (sym2->type == S_UNKNOWN)
-                                prop_warn(prop,
-                                    "'select' used by config symbol '%s' "
-                                    "refers to undefined symbol '%s'",
-                                    sym->name, sym2->name);
-                        else if (sym2->type != S_BOOLEAN && sym2->type != S_TRISTATE)
+                        else if (sym2->type != S_UNKNOWN &&
+                                 sym2->type != S_BOOLEAN &&
+                                 sym2->type != S_TRISTATE)
                                 prop_warn(prop,
                                     "'%s' has wrong type. 'select' only "
                                     "accept arguments of boolean and "