linux-kernel - Re: [PATCH 1/3] power: supply: ab8500: remove set but not used variables 'vbup33_vrtcn' and 'bup_vch

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Message-ID: <3142ee96-0bca-a9f3-1138-a4cf58d46bd8@huawei.com>
Date:   Wed, 17 Jul 2019 22:17:07 +0800
From:   Yuehaibing <yuehaibing@...wei.com>
To:     <sre@...nel.org>, <linus.walleij@...aro.org>,
        <lee.jones@...aro.org>, <loic.pallardy@...com>
CC:     <linux-kernel@...r.kernel.org>, <linux-pm@...r.kernel.org>
Subject: Re: [PATCH 1/3] power: supply: ab8500: remove set but not used
 variables 'vbup33_vrtcn' and 'bup_vch_range'

Sorry, Pls ignore this, I will fix patch title.

On 2019/7/17 22:15, YueHaibing wrote:
> Fixes gcc '-Wunused-but-set-variable' warnings:
> 
> drivers/power/supply/ab8500_charger.c:
>  In function ab8500_charger_init_hw_registers:
> drivers/power/supply/ab8500_charger.c:3013:24: warning:
>  variable vbup33_vrtcn set but not used [-Wunused-but-set-variable]
> drivers/power/supply/ab8500_charger.c:3013:5: warning:
>  variable bup_vch_range set but not used [-Wunused-but-set-variable]
> 
> They are not used since commit 4c4268dc97c4 ("power:
> supply: ab8500: Drop AB8540/9540 support")
> 
> Reported-by: Hulk Robot <hulkci@...wei.com>
> Signed-off-by: YueHaibing <yuehaibing@...wei.com>
> ---
>  drivers/power/supply/ab8500_charger.c | 7 -------
>  1 file changed, 7 deletions(-)
> 
> diff --git a/drivers/power/supply/ab8500_charger.c b/drivers/power/supply/ab8500_charger.c
> index 30de448..270a48a 100644
> --- a/drivers/power/supply/ab8500_charger.c
> +++ b/drivers/power/supply/ab8500_charger.c
> @@ -3010,7 +3010,6 @@ static int ab8500_charger_usb_get_property(struct power_supply *psy,
>  static int ab8500_charger_init_hw_registers(struct ab8500_charger *di)
>  {
>  	int ret = 0;
> -	u8 bup_vch_range = 0, vbup33_vrtcn = 0;
>  
>  	/* Setup maximum charger current and voltage for ABB cut2.0 */
>  	if (!is_ab8500_1p1_or_earlier(di->parent)) {
> @@ -3111,12 +3110,6 @@ static int ab8500_charger_init_hw_registers(struct ab8500_charger *di)
>  		goto out;
>  	}
>  
> -	/* Backup battery voltage and current */
> -	if (di->bm->bkup_bat_v > BUP_VCH_SEL_3P1V)
> -		bup_vch_range = BUP_VCH_RANGE;
> -	if (di->bm->bkup_bat_v == BUP_VCH_SEL_3P3V)
> -		vbup33_vrtcn = VBUP33_VRTCN;
> -
>  	ret = abx500_set_register_interruptible(di->dev,
>  		AB8500_RTC,
>  		AB8500_RTC_BACKUP_CHG_REG,
>