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From: Amelie DELAUNAY <amelie.delaunay@st.com>
To: Stephen Rothwell <sfr@canb.auug.org.au>,
        Alexandre Belloni <alexandre.belloni@free-electrons.com>
CC: "linux-next@vger.kernel.org" <linux-next@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "Mathieu Poirier" <mathieu.poirier@linaro.org>
Subject: RE: linux-next: build warning after merge of the rtc tree
Thread-Topic: linux-next: build warning after merge of the rtc tree
Thread-Index: AQHSbUuvU8S3Zf2Ab0KjxC5dX0IxgaE2FusQ
Date: Fri, 13 Jan 2017 08:42:00 +0000
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Hi Stephen,

I'm going to send a patch to fix this warning.
Thanks,

Regards,
Amelie

> -----Original Message-----
> From: Stephen Rothwell [mailto:sfr@canb.auug.org.au]
> Sent: vendredi 13 janvier 2017 04:18
> To: Alexandre Belloni <alexandre.belloni@free-electrons.com>
> Cc: linux-next@vger.kernel.org; linux-kernel@vger.kernel.org; Amelie
> DELAUNAY <amelie.delaunay@st.com>; Mathieu Poirier
> <mathieu.poirier@linaro.org>
> Subject: linux-next: build warning after merge of the rtc tree
> 
> Hi Alexandre,
> 
> After merging the rtc tree, today's linux-next build (x86_64 allmodconfig)
> produced this warning:
> 
> In file included from drivers/rtc/rtc-stm32.c:14:0:
> drivers/rtc/rtc-stm32.c: In function 'stm32_rtc_probe':
> drivers/rtc/rtc-stm32.c:653:51: warning: large integer implicitly truncated to
> unsigned type [-Woverflow]
>   regmap_update_bits(rtc->dbp, PWR_CR, PWR_CR_DBP, ~PWR_CR_DBP);
>                                                    ^
> include/linux/regmap.h:73:42: note: in definition of macro
> 'regmap_update_bits'
>   regmap_update_bits_base(map, reg, mask, val, NULL, false, false)
>                                           ^
> drivers/rtc/rtc-stm32.c: In function 'stm32_rtc_remove':
> drivers/rtc/rtc-stm32.c:675:51: warning: large integer implicitly truncated to
> unsigned type [-Woverflow]
>   regmap_update_bits(rtc->dbp, PWR_CR, PWR_CR_DBP, ~PWR_CR_DBP);
>                                                    ^
> include/linux/regmap.h:73:42: note: in definition of macro
> 'regmap_update_bits'
>   regmap_update_bits_base(map, reg, mask, val, NULL, false, false)
>                                           ^
> 
> Introduced by commit
> 
>   4e64350f42e2 ("rtc: add STM32 RTC driver")
> 
> --
> Cheers,
> Stephen Rothwell