Re: `make oldconfig' no longer updating `.config.old'?

[Sam Ravnborg <sam@ravnborg.org>]

On Mon, Aug 04, 2008 at 09:02:43AM +0200, Geert Uytterhoeven wrote:
> 	Hi,
> 
> I have the habit of doing `make .config{.old,}' after each config run,
> to see what was changed. But since a few weeks, `make oldconfig' no longer
> seems to update `.config.old'.
> 
> This also breaks the default behavior of `scripts/diffconfig' (`If no
> config files are specified, .config and .config.old are used.').
> 
> Was this change intentional?

.config is with current kconfig updated only if a user visible
symbol changes (or something like that).
I had another similar report where .config was not created if
missing and confi was not changed.

Fix is below and I will commit it soon.

	Sam

diff --git a/scripts/kconfig/conf.c b/scripts/kconfig/conf.c
index 9fba838..36b5eed 100644
--- a/scripts/kconfig/conf.c
+++ b/scripts/kconfig/conf.c
@@ -596,7 +596,7 @@ int main(int ac, char **av)
 		break;
 	}
 
-	if (conf_get_changed() && conf_write(NULL)) {
+	if (conf_write(NULL)) {
 		fprintf(stderr, _("\n*** Error during writing of the kernel configuration.\n\n"));
 		exit(1);
 	}