All,
On Mon, Nov 18, 2013 at 12:08 PM, Yann E. MORIN <[email protected]> wrote:
> Dirk, All,
>
> On 2013-11-07 15:05 +0100, Dirk Gouders spake thusly:
>> If choices consist of choice_values that depend on symbols set to 'm',
>> those choice_values are not set to 'n' if the choice is changed from
>> 'm' to 'y' (in which case only one active choice_value is allowed).
>> Those values are also written to the config file causing modules to be
>> built when they should not.
>>
>> The following config can be used to reproduce and examine the problem;
>> with the frontend of your choice set "Choice 0" and "Choice 1" to 'm',
>> then set "Tristate Choice" to 'y' and save the configuration:
>>
>> config modules
>> boolean modules
>> default y
>> option modules
>>
>> config dependency
>> tristate "Dependency"
>> default m
>>
>> choice
>> prompt "Tristate Choice"
>> default choice0
>>
>> config choice0
>> tristate "Choice 0"
>>
>> config choice1
>> tristate "Choice 1"
>> depends on dependency
>>
>> endchoice
>>
>> This patch sets choice_values' visibility that depend on symbols set
>> to 'm' to 'n' if the corresponding choice is set to 'y'. This makes
>> them disappear from the choice list and will also cause the
>> choice_values' value set to 'n' in sym_calc_value() and as a result
>> they are written as "not set" to the resulting .config file.
>>
>> Reported-by: Sebastian Andrzej Siewior <[email protected]>
>> Signed-off-by: Dirk Gouders <[email protected]>
>> Tested-by: Sebastian Andrzej Siewior <[email protected]>
>
> Acked-by: "Yann E. MORIN" <[email protected]>
>
> It will be in my tree soon. Thanks!
I don't see this patch in 3.16 but 3.16 does not have the issue any
more. Anyone has an idea how the issue got fixed? I am trying to find
the right patch to backport.
Thanks,
-Bin.
>
> Regards,
> Yann E. MORIN.
>
>> ---
>> scripts/kconfig/symbol.c | 11 +++++++++++
>> 1 file changed, 11 insertions(+)
>>
>> diff --git a/scripts/kconfig/symbol.c b/scripts/kconfig/symbol.c
>> index c9a6775..06d96c9 100644
>> --- a/scripts/kconfig/symbol.c
>> +++ b/scripts/kconfig/symbol.c
>> @@ -189,12 +189,23 @@ static void sym_validate_range(struct symbol *sym)
>> static void sym_calc_visibility(struct symbol *sym)
>> {
>> struct property *prop;
>> + struct symbol *choice_sym = NULL;
>> tristate tri;
>>
>> /* any prompt visible? */
>> tri = no;
>> +
>> + if (sym_is_choice_value(sym))
>> + choice_sym = prop_get_symbol(sym_get_choice_prop(sym));
>> +
>> for_all_prompts(sym, prop) {
>> prop->visible.tri = expr_calc_value(prop->visible.expr);
>> + /*
>> + * choice_values with visibility 'mod' are not visible if the
>> + * corresponding choice's value is 'yes'.
>> + */
>> + if (prop->visible.tri == mod && (choice_sym &&
>> choice_sym->curr.tri == yes))
>> + prop->visible.tri = no;
>> tri = EXPR_OR(tri, prop->visible.tri);
>> }
>> if (tri == mod && (sym->type != S_TRISTATE || modules_val == no))
>> --
>> 1.8.4
>>
>
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