2010-08-14 21:29:04

by Sam Ravnborg

[permalink] [raw]
Subject: [PATCH] kconfig: fix savedefconfig with choice marked optional

>From db5b47421d4e9c2f3a35bc3aaa4a1423b767e00a Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <[email protected]>
Date: Sat, 14 Aug 2010 23:22:16 +0200
Subject: [PATCH] kconfig: fix savedefconfig with choice marked optional

savedefconfig failed to save the correct minimal config
when it encountered a choice marked optional.

Consider following minimal configuration:
$cat Kconfig
choice
prompt "choice"
optional

config A
bool "a"

config B
bool "b"

endchoice

$cat .config | grep -v ^#
CONFIG_A=y

$conf --savedefconfig=defconfig Kconfig

would before this fix result in an empty file, because
kconfig would assume that CONFIG_A=y is a default value.
But because the choice is optional the default is that
both A and B are =n.

Fix so we handle optional choices correct.

Signed-off-by: Sam Ravnborg <[email protected]>
---
scripts/kconfig/confdata.c | 6 ++++--
1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index c39327e..515253f 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -497,7 +497,9 @@ int conf_write_defconfig(const char *filename)
/*
* If symbol is a choice value and equals to the
* default for a choice - skip.
- * But only if value is bool and equal to "y" .
+ * But only if value is bool and equal to "y" and
+ * choice is not "optional".
+ * (If choice is "optional" then all values can be "n")
*/
if (sym_is_choice_value(sym)) {
struct symbol *cs;
@@ -505,7 +507,7 @@ int conf_write_defconfig(const char *filename)

cs = prop_get_symbol(sym_get_choice_prop(sym));
ds = sym_choice_default(cs);
- if (sym == ds) {
+ if (!sym_is_optional(cs) && sym == ds) {
if ((sym->type == S_BOOLEAN) &&
sym_get_tristate_value(sym) == yes)
goto next_menu;
--
1.6.0.6


2010-08-14 22:41:11

by Michal Marek

[permalink] [raw]
Subject: Re: [PATCH] kconfig: fix savedefconfig with choice marked optional

Dne 14.8.2010 23:29, Sam Ravnborg napsal(a):
> From db5b47421d4e9c2f3a35bc3aaa4a1423b767e00a Mon Sep 17 00:00:00 2001
> From: Sam Ravnborg <[email protected]>
> Date: Sat, 14 Aug 2010 23:22:16 +0200
> Subject: [PATCH] kconfig: fix savedefconfig with choice marked optional
>
> savedefconfig failed to save the correct minimal config
> when it encountered a choice marked optional.
>
> Consider following minimal configuration:
> $cat Kconfig
> choice
> prompt "choice"
> optional
>
> config A
> bool "a"
>
> config B
> bool "b"
>
> endchoice
>
> $cat .config | grep -v ^#
> CONFIG_A=y
>
> $conf --savedefconfig=defconfig Kconfig
>
> would before this fix result in an empty file, because
> kconfig would assume that CONFIG_A=y is a default value.
> But because the choice is optional the default is that
> both A and B are =n.
>
> Fix so we handle optional choices correct.
>
> Signed-off-by: Sam Ravnborg <[email protected]>
> ---
> scripts/kconfig/confdata.c | 6 ++++--
> 1 files changed, 4 insertions(+), 2 deletions(-)

Applied to kbuild/kconfg.

Michal

2010-08-14 23:26:25

by Sedat Dilek

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Subject: Re: [PATCH] kconfig: fix savedefconfig with choice marked optional

Recent kbuild/kconfig patches seem not to be in
<http://repo.or.cz/w/linux-kbuild.git>?

Looks like there is a new home:

-T: git git://repo.or.cz/linux-kbuild.git for-next
-T: git git://repo.or.cz/linux-kbuild.git for-linus
+T: git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6.git
for-next
+T: git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6.git
for-linus

Also, I would appreciate to have the Vcs-Browser URL (to say it in
"Debian language") in the MAINTAINERS file.
Personally, I check the GIT repos/branches via web-browser.

T: http://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6.git
T: https://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6.git

What do you think of that?

- Sedat -

$ grep kbuild MAINTAINERS
L: [email protected]
Q: http://patchwork.kernel.org/project/linux-kbuild/list/
F: Documentation/kbuild/kconfig-language.txt
T: git git://repo.or.cz/linux-kbuild.git for-next
T: git git://repo.or.cz/linux-kbuild.git for-linus
L: [email protected]
F: Documentation/kbuild/

2010-08-15 01:15:46

by Sam Ravnborg

[permalink] [raw]
Subject: Re: [PATCH] kconfig: fix savedefconfig with choice marked optional

On Sun, Aug 15, 2010 at 01:26:22AM +0200, Sedat Dilek wrote:
> Recent kbuild/kconfig patches seem not to be in
> <http://repo.or.cz/w/linux-kbuild.git>?
>
> Looks like there is a new home:
>
> -T: git git://repo.or.cz/linux-kbuild.git for-next
> -T: git git://repo.or.cz/linux-kbuild.git for-linus
> +T: git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6.git
> for-next
> +T: git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6.git
> for-linus

This is already fixed in upstream. You need to update
your source repository.

See: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=3631d9a2e503ec9c36b0599b2e45548e5c410516

Sam

2010-08-15 07:14:22

by Sedat Dilek

[permalink] [raw]
Subject: Re: [PATCH] kconfig: fix savedefconfig with choice marked optional

On Sun, Aug 15, 2010 at 3:15 AM, Sam Ravnborg <[email protected]> wrote:
> On Sun, Aug 15, 2010 at 01:26:22AM +0200, Sedat Dilek wrote:
>> Recent kbuild/kconfig patches seem not to be in
>> <http://repo.or.cz/w/linux-kbuild.git>?
>>
>> Looks like there is a new home:
>>
>> -T:      git git://repo.or.cz/linux-kbuild.git for-next
>> -T:      git git://repo.or.cz/linux-kbuild.git for-linus
>> +T:      git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6.git
>> for-next
>> +T:      git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6.git
>> for-linus
>
> This is already fixed in upstream. You need to update
> your source repository.
>
> See: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=3631d9a2e503ec9c36b0599b2e45548e5c410516
>

I am sorry, did not look into the patched src-dir:

$ grep kbuild debian/build/source_i386_none/MAINTAINERS | grep ^T
T: git git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6.git
for-next
T: git git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6.git
rc-fixes

Thanks!

- Sedat -