kconfig: allow loading multiple configurations

Extend conf_read_simple() so it can load multiple configurations.

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

1 files changed, 6 insertions, 7 deletions

diff --git a/scripts/kconfig/symbol.c b/scripts/kconfig/symbol.c
index 4ea0050dcb16..78a60ba39e54 100644
--- a/scripts/kconfig/symbol.c
+++ b/scripts/kconfig/symbol.c
@@ -426,8 +426,8 @@ bool sym_set_tristate_value(struct symbol *sym, tristate val)
         if (oldval != val && !sym_tristate_within_range(sym, val))
                 return false;
 
-        if (sym->flags & SYMBOL_NEW) {
-                sym->flags &= ~SYMBOL_NEW;
+        if (!(sym->flags & SYMBOL_DEF_USER)) {
+                sym->flags |= SYMBOL_DEF_USER;
                 sym_set_changed(sym);
         }
         /*
@@ -440,11 +440,11 @@ bool sym_set_tristate_value(struct symbol *sym, tristate val)
                 struct expr *e;
 
                 cs->def[S_DEF_USER].val = sym;
-                cs->flags &= ~SYMBOL_NEW;
+                cs->flags |= SYMBOL_DEF_USER;
                 prop = sym_get_choice_prop(cs);
                 for (e = prop->expr; e; e = e->left.expr) {
                         if (e->right.sym->visible != no)
-                                e->right.sym->flags &= ~SYMBOL_NEW;
+                                e->right.sym->flags |= SYMBOL_DEF_USER;
                 }
         }
 
@@ -591,8 +591,8 @@ bool sym_set_string_value(struct symbol *sym, const char *newval)
         if (!sym_string_within_range(sym, newval))
                 return false;
 
-        if (sym->flags & SYMBOL_NEW) {
-                sym->flags &= ~SYMBOL_NEW;
+        if (!(sym->flags & SYMBOL_DEF_USER)) {
+                sym->flags |= SYMBOL_DEF_USER;
                 sym_set_changed(sym);
         }
 
@@ -679,7 +679,6 @@ struct symbol *sym_lookup(const char *name, int isconst)
         memset(symbol, 0, sizeof(*symbol));
         symbol->name = new_name;
         symbol->type = S_UNKNOWN;
-        symbol->flags = SYMBOL_NEW;
         if (isconst)
                 symbol->flags |= SYMBOL_CONST;