fbcon: Kill compile warning

Fix compile warning ('map_override unused') if fbcon is compiled as a module
and CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=n.

[akpm@linux-foundation.org: cleanup]
Signed-off-by: NAntonino Daplas <adaplas@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

drivers/video/console/fbcon.c

@@ -127,8 +127,20 @@ static int last_fb_vc = MAX_NR_CONSOLES - 1;
 static int fbcon_is_default = 1; 
 static int fbcon_has_exited;
 static int primary_device = -1;
+
+#ifdef CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY
 static int map_override;
 
+static inline void fbcon_map_override(void)
+{
+	map_override = 1;
+}
+#else
+static inline void fbcon_map_override(void)
+{
+}
+#endif /* CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY */
+
 /* font data */
 static char fontname[40];
 
@@ -506,7 +518,7 @@ static int __init fb_console_setup(char *this_opt)
 						(options[j++]-'0') % FB_MAX;
 				}
 
-				map_override = 1;
+				fbcon_map_override();
 			}
 
 			return 1;