Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband

[powerpc.git] / scripts / kconfig / confdata.c

diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index 69f96b3..664fe29 100644 (file)
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -100,7 +100,7 @@ int conf_read_simple(const char *name, int def)
                in = zconf_fopen(name);
                if (in)
                        goto load;
-               sym_change_count++;
+               sym_add_change_count(1);
                if (!sym_defconfig_list)
                        return 1;
 
@@ -312,7 +312,7 @@ int conf_read(const char *name)
        struct expr *e;
        int i, flags;
 
-       sym_change_count = 0;
+       sym_set_change_count(0);
 
        if (conf_read_simple(name, S_DEF_USER))
                return 1;
@@ -364,7 +364,7 @@ int conf_read(const char *name)
                sym->flags &= flags | ~SYMBOL_DEF_USER;
        }
 
-       sym_change_count += conf_warnings || conf_unsaved;
+       sym_add_change_count(conf_warnings || conf_unsaved);
 
        return 0;
 }
@@ -432,7 +432,7 @@ int conf_write(const char *name)
                     use_timestamp ? "# " : "",
                     use_timestamp ? ctime(&now) : "");
 
-       if (!sym_change_count)
+       if (!conf_get_changed())
                sym_clear_all_valid();
 
        menu = rootmenu.list;
@@ -517,7 +517,7 @@ int conf_write(const char *name)
        fclose(out);
 
        if (*tmpname) {
-               strcat(dirname, name ? name : conf_get_configname());
+               strcat(dirname, basename);
                strcat(dirname, ".old");
                rename(newname, dirname);
                if (rename(tmpname, newname))
@@ -528,7 +528,7 @@ int conf_write(const char *name)
                 "# configuration written to %s\n"
                 "#\n"), newname);
 
-       sym_change_count = 0;
+       sym_set_change_count(0);
 
        return 0;
 }
@@ -765,3 +765,30 @@ int conf_write_autoconf(void)
 
        return 0;
 }
+
+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_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;
+}