Merge branch 'master' into next

Conflicts:
	security/smack/smack_lsm.c

Verified and added fix by Stephen Rothwell <sfr@canb.auug.org.au>
Ok'd by Casey Schaufler <casey@schaufler-ca.com>

Signed-off-by: James Morris <jmorris@namei.org>

1 files changed, 25 insertions, 0 deletions

diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c
index 7e83aef42c6..5f77dcb8977 100644
--- a/scripts/kconfig/menu.c
+++ b/scripts/kconfig/menu.c
@@ -140,6 +140,20 @@ struct property *menu_add_prop(enum prop_type type, char *prompt, struct expr *e
 		}
 		if (current_entry->prompt && current_entry != &rootmenu)
 			prop_warn(prop, "prompt redefined");
+
+		/* Apply all upper menus' visibilities to actual prompts. */
+		if(type == P_PROMPT) {
+			struct menu *menu = current_entry;
+
+			while ((menu = menu->parent) != NULL) {
+				if (!menu->visibility)
+					continue;
+				prop->visible.expr
+					= expr_alloc_and(prop->visible.expr,
+							 menu->visibility);
+			}
+		}
+
 		current_entry->prompt = prop;
 	}
 	prop->text = prompt;
@@ -152,6 +166,12 @@ struct property *menu_add_prompt(enum prop_type type, char *prompt, struct expr
 	return menu_add_prop(type, prompt, NULL, dep);
 }
 
+void menu_add_visibility(struct expr *expr)
+{
+	current_entry->visibility = expr_alloc_and(current_entry->visibility,
+	    expr);
+}
+
 void menu_add_expr(enum prop_type type, struct expr *expr, struct expr *dep)
 {
 	menu_add_prop(type, NULL, expr, dep);
@@ -410,6 +430,11 @@ bool menu_is_visible(struct menu *menu)
 	if (!menu->prompt)
 		return false;
 
+	if (menu->visibility) {
+		if (expr_calc_value(menu->visibility) == no)
+			return no;
+	}
+
 	sym = menu->sym;
 	if (sym) {
 		sym_calc_value(sym);