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SubjectRe: [PATCH] power: supply: ab8500: remove unused static local variable
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在 2022/8/17 9:57, chenlifu 写道:
> 在 2022/7/19 10:27, Tom Rix 写道:
>> cpp_check reports
>> [drivers/power/supply/ab8500_chargalg.c:493]: (style) Variable
>> 'ab8500_chargalg_ex_ac_enable_toggle' is assigned a value that is
>> never used.
>>
>>> From inspection, this variable is never used. So remove it.
>>
>> Fixes: 6c50a08d9dd3 ("power: supply: ab8500: Drop external charger
>> leftovers")
>> Signed-off-by: Tom Rix <trix@redhat.com>
>> ---
>>   drivers/power/supply/ab8500_chargalg.c | 2 --
>>   1 file changed, 2 deletions(-)
>>
>> diff --git a/drivers/power/supply/ab8500_chargalg.c
>> b/drivers/power/supply/ab8500_chargalg.c
>> index ae4be553f424..05146d436a6a 100644
>> --- a/drivers/power/supply/ab8500_chargalg.c
>> +++ b/drivers/power/supply/ab8500_chargalg.c
>> @@ -490,8 +490,6 @@ static int ab8500_chargalg_kick_watchdog(struct
>> ab8500_chargalg *di)
>>   static int ab8500_chargalg_ac_en(struct ab8500_chargalg *di, int
>> enable,
>>       int vset_uv, int iset_ua)
>>   {
>> -    static int ab8500_chargalg_ex_ac_enable_toggle;
>> -
>>       if (!di->ac_chg || !di->ac_chg->ops.enable)
>>           return -ENXIO;
>>
>
> Reviewed-by: Chen Lifu <chenlifu@huawei.com>
>
>
> I can still observe this build error with ARCH=arm,
> defconfig=allyesconfig in linux-next next-200816:
>
> drivers/power/supply/ab8500_chargalg.c: In function
> ‘ab8500_chargalg_ac_en’:
> drivers/power/supply/ab8500_chargalg.c:493:13: error: unused variable
> ‘ab8500_chargalg_ex_ac_enable_toggle’ [-Werror=unused-variable]
>  static int ab8500_chargalg_ex_ac_enable_toggle;
>             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> .

Reviewed-by: Chen Lifu <chenlifu@huawei.com>

fixed the tag: next-200816 --> next-20220816

I can still observe this build error with ARCH=arm,
defconfig=allyesconfig in linux-next next-20220816:

drivers/power/supply/ab8500_chargalg.c: In function ‘ab8500_chargalg_ac_en’:
drivers/power/supply/ab8500_chargalg.c:493:13: error: unused variable
‘ab8500_chargalg_ex_ac_enable_toggle’ [-Werror=unused-variable]
static int ab8500_chargalg_ex_ac_enable_toggle;
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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