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From: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
To: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: "u-boot@lists.denx.de" <u-boot@lists.denx.de>,
	Linux Kbuild mailing list <linux-kbuild@vger.kernel.org>
Subject: Re: [U-Boot] Kconfig bug (optional choice deselected by following option)
Date: Sun, 17 Jan 2016 22:14:35 +0100	[thread overview]
Message-ID: <569C043B.7030301@gmail.com> (raw)
In-Reply-To: <CAK7LNAT9oiuQ81Ms-Piw2=OwX3mr+VzCQk2buy1T7yqRLKU40Q@mail.gmail.com>

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

Hi All,

Just a small update from my side;

I used bisect-foo and offending commit (@Linux) seems to be:

commit 5d09598d488f081e3be23f885ed65cbbe2d073b5
Author: Arnaud Lacombe <lacombar@gmail.com>
Date:   Mon Jan 23 17:29:05 2012 -0500

    kconfig: fix new choices being skipped upon config update



Best Regards,
Mateusz

On 17.01.2016 21:29, Masahiro Yamada wrote:
> Hi Mateusz,
> (CCing linux-kbuild, which I think the best place to discuss this topic)
> 
> 
> I think "default n" in the choice entry is weird
> because the choice is not boolean.
> 
> Without it, the weird thing you saw did not happen on my box.
> 
> 
> Anyway, I'd like Kconfig to say something if it is really a syntax error.
> 
> 
> I hope comments from Kconfig experts.
> 
> 
> 
> 
> 2016-01-17 20:39 GMT+09:00 Mateusz Kulikowski <mateusz.kulikowski@gmail.com>:
> Hi all,
> 
> I have found weird feature of Kconfig.
> If I misused something, please let me know - I found at least one place
> where the same error occurs.
> 
> Let's consider the following Kconfig (you can put it anywhere in the source tree):
> <-------------- copy ----------------->
> menu "Testmenu"
> choice
>         prompt "Problem to solve"
>         optional
>         default n
>         help
>           Solve one of great world problems
> 
> config SOLVE_HUNGER
>         bool "Hunger"
> 
> config SOLVE_WARS
>         bool "Wars"
> 
> config CURE_CANCER
>         bool "Cancer"
> 
> endchoice
> 
> config TREES
>         default n
>         bool "Plant trees in garden"
> endmenu
> 
> config BLAH
>         default n
>         bool "Totally unrelated option"
> 
> <------------- paste ------------------->
> 
> Now, select HUNGER important problem to solve; Warning - select it with space, _not_ enter + selection from list;
> Then select either TREES or BLAH.
> 
> Weird thing is - SOLVE_HUNGER is unselected.
> 
> It doesn't happen when you select (anything) by entering selection menu (i.e. enter).
> Even if you deselect option and then select it with space.
> 
> It happens both in menuconfig and nconfig.
> 
> It happens both in recent U-Boot b57843e6 and Linux kernel ece62678.
> 
> Unfortunately my knowledge of Kconfig is very limited so your help would be appreciated.
> 
> Best Regards,
> Mateusz
>> _______________________________________________
>> U-Boot mailing list
>> U-Boot@lists.denx.de
>> http://lists.denx.de/mailman/listinfo/u-boot
> 
> 
> 

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WARNING: multiple messages have this Message-ID (diff)
From: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] Kconfig bug (optional choice deselected by following option)
Date: Sun, 17 Jan 2016 22:14:35 +0100	[thread overview]
Message-ID: <569C043B.7030301@gmail.com> (raw)
In-Reply-To: <CAK7LNAT9oiuQ81Ms-Piw2=OwX3mr+VzCQk2buy1T7yqRLKU40Q@mail.gmail.com>

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

Hi All,

Just a small update from my side;

I used bisect-foo and offending commit (@Linux) seems to be:

commit 5d09598d488f081e3be23f885ed65cbbe2d073b5
Author: Arnaud Lacombe <lacombar@gmail.com>
Date:   Mon Jan 23 17:29:05 2012 -0500

    kconfig: fix new choices being skipped upon config update



Best Regards,
Mateusz

On 17.01.2016 21:29, Masahiro Yamada wrote:
> Hi Mateusz,
> (CCing linux-kbuild, which I think the best place to discuss this topic)
> 
> 
> I think "default n" in the choice entry is weird
> because the choice is not boolean.
> 
> Without it, the weird thing you saw did not happen on my box.
> 
> 
> Anyway, I'd like Kconfig to say something if it is really a syntax error.
> 
> 
> I hope comments from Kconfig experts.
> 
> 
> 
> 
> 2016-01-17 20:39 GMT+09:00 Mateusz Kulikowski <mateusz.kulikowski@gmail.com>:
> Hi all,
> 
> I have found weird feature of Kconfig.
> If I misused something, please let me know - I found at least one place
> where the same error occurs.
> 
> Let's consider the following Kconfig (you can put it anywhere in the source tree):
> <-------------- copy ----------------->
> menu "Testmenu"
> choice
>         prompt "Problem to solve"
>         optional
>         default n
>         help
>           Solve one of great world problems
> 
> config SOLVE_HUNGER
>         bool "Hunger"
> 
> config SOLVE_WARS
>         bool "Wars"
> 
> config CURE_CANCER
>         bool "Cancer"
> 
> endchoice
> 
> config TREES
>         default n
>         bool "Plant trees in garden"
> endmenu
> 
> config BLAH
>         default n
>         bool "Totally unrelated option"
> 
> <------------- paste ------------------->
> 
> Now, select HUNGER important problem to solve; Warning - select it with space, _not_ enter + selection from list;
> Then select either TREES or BLAH.
> 
> Weird thing is - SOLVE_HUNGER is unselected.
> 
> It doesn't happen when you select (anything) by entering selection menu (i.e. enter).
> Even if you deselect option and then select it with space.
> 
> It happens both in menuconfig and nconfig.
> 
> It happens both in recent U-Boot b57843e6 and Linux kernel ece62678.
> 
> Unfortunately my knowledge of Kconfig is very limited so your help would be appreciated.
> 
> Best Regards,
> Mateusz
>> _______________________________________________
>> U-Boot mailing list
>> U-Boot at lists.denx.de
>> http://lists.denx.de/mailman/listinfo/u-boot
> 
> 
> 

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  parent reply	other threads:[~2016-01-17 21:14 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-01-17 11:39 [U-Boot] Kconfig bug (optional choice deselected by following option) Mateusz Kulikowski
2016-01-17 20:29 ` Masahiro Yamada
2016-01-17 20:29   ` Masahiro Yamada
2016-01-17 20:40   ` Masahiro Yamada
2016-01-17 20:40     ` Masahiro Yamada
2016-01-17 21:14   ` Mateusz Kulikowski [this message]
2016-01-17 21:14     ` Mateusz Kulikowski

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