[PATCH] kconfig: add "void conf_set_changed_callback(void (*fn)(void))", use it in qconf.cc
Added function sets "void (*conf_changed_callback)(void)". Call it, if
.config's changed state changes. Use above in qconf.cc to set gui's
save-widget's sensitvity.
Signed-off-by: Karsten Wiese <fzu@wemgehoertderstaat.de>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index 4bbbb5b..664fe29 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -767,18 +767,28 @@
}
static int sym_change_count;
+static void (*conf_changed_callback)(void);
void sym_set_change_count(int count)
{
+ int _sym_change_count = sym_change_count;
sym_change_count = count;
+ if (conf_changed_callback &&
+ (bool)_sym_change_count != (bool)count)
+ conf_changed_callback();
}
void sym_add_change_count(int count)
{
- sym_change_count += count;
+ sym_set_change_count(count + sym_change_count);
}
bool conf_get_changed(void)
{
return sym_change_count;
}
+
+void conf_set_changed_callback(void (*fn)(void))
+{
+ conf_changed_callback = fn;
+}