Re: [PATCH 3/8] rtc: ds1685: remove set but unused variables

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On 11/22/2019 05:22, Alexandre Belloni wrote:
> Fix the following warnings:
> drivers/rtc/rtc-ds1685.c: In function ‘ds1685_rtc_read_time’:
> drivers/rtc/rtc-ds1685.c:264:5: warning: variable ‘ctrlb’ set but not used [-Wunused-but-set-variable]
>   264 |  u8 ctrlb, century;
>       |     ^~~~~
> drivers/rtc/rtc-ds1685.c: In function ‘ds1685_rtc_proc’:
> drivers/rtc/rtc-ds1685.c:758:19: warning: variable ‘ctrlc’ set but not used [-Wunused-but-set-variable]
>   758 |  u8 ctrla, ctrlb, ctrlc, ctrld, ctrl4a, ctrl4b, ssn[8];
>       |                   ^~~~~
> Cc: Joshua Kinard <kumba@xxxxxxxxxx>
> Signed-off-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx>
> ---
>  drivers/rtc/rtc-ds1685.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/rtc/rtc-ds1685.c b/drivers/rtc/rtc-ds1685.c
> index 98d06b3ee913..8419595e7da7 100644
> --- a/drivers/rtc/rtc-ds1685.c
> +++ b/drivers/rtc/rtc-ds1685.c
> @@ -261,7 +261,7 @@ static int
>  ds1685_rtc_read_time(struct device *dev, struct rtc_time *tm)
>  {
>  	struct ds1685_priv *rtc = dev_get_drvdata(dev);
> -	u8 ctrlb, century;
> +	u8 century;
>  	u8 seconds, minutes, hours, wday, mday, month, years;
>  
>  	/* Fetch the time info from the RTC registers. */
> @@ -274,7 +274,6 @@ ds1685_rtc_read_time(struct device *dev, struct rtc_time *tm)
>  	month   = rtc->read(rtc, RTC_MONTH);
>  	years   = rtc->read(rtc, RTC_YEAR);
>  	century = rtc->read(rtc, RTC_CENTURY);
> -	ctrlb   = rtc->read(rtc, RTC_CTRL_B);
>  	ds1685_rtc_end_data_access(rtc);
>  
>  	/* bcd2bin if needed, perform fixups, and store to rtc_time. */
> @@ -755,7 +754,7 @@ static int
>  ds1685_rtc_proc(struct device *dev, struct seq_file *seq)
>  {
>  	struct ds1685_priv *rtc = dev_get_drvdata(dev);
> -	u8 ctrla, ctrlb, ctrlc, ctrld, ctrl4a, ctrl4b, ssn[8];
> +	u8 ctrla, ctrlb, ctrld, ctrl4a, ctrl4b, ssn[8];
>  	char *model;
>  
>  	/* Read all the relevant data from the control registers. */
> @@ -763,7 +762,6 @@ ds1685_rtc_proc(struct device *dev, struct seq_file *seq)
>  	ds1685_rtc_get_ssn(rtc, ssn);
>  	ctrla = rtc->read(rtc, RTC_CTRL_A);
>  	ctrlb = rtc->read(rtc, RTC_CTRL_B);
> -	ctrlc = rtc->read(rtc, RTC_CTRL_C);
>  	ctrld = rtc->read(rtc, RTC_CTRL_D);
>  	ctrl4a = rtc->read(rtc, RTC_EXT_CTRL_4A);
>  	ctrl4b = rtc->read(rtc, RTC_EXT_CTRL_4B);
> 

Acked-By: Joshua Kinard <kumba@xxxxxxxxxx>



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