Hi Miodrag, [auto build test WARNING on linus/master] [also build test WARNING on v4.13-rc1 next-20170721] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Aleksandar-Markovic/MIPS-Add-virtual-Ranchu-board-as-a-generic-based-board/20170724-062318 config: blackfin-allyesconfig (attached as .config) compiler: bfin-uclinux-gcc (GCC) 6.2.0 reproduce: wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=blackfin All warnings (new ones prefixed by >>): drivers/rtc/rtc-goldfish.c: In function 'goldfish_rtc_set_alarm': >> drivers/rtc/rtc-goldfish.c:86:21: warning: right shift count >= width of type [-Wshift-count-overflow] writel((rtc_alarm >> 32), base + TIMER_ALARM_HIGH); ^~ drivers/rtc/rtc-goldfish.c: In function 'goldfish_rtc_set_time': drivers/rtc/rtc-goldfish.c:167:15: warning: right shift count >= width of type [-Wshift-count-overflow] writel((now >> 32), base + TIMER_TIME_HIGH); ^~ vim +86 drivers/rtc/rtc-goldfish.c 67 68 static int goldfish_rtc_set_alarm(struct device *dev, 69 struct rtc_wkalrm *alrm) 70 { 71 struct goldfish_rtc *rtcdrv; 72 unsigned long rtc_alarm; 73 u64 rtc_status_reg; 74 void __iomem *base; 75 int ret = 0; 76 77 rtcdrv = dev_get_drvdata(dev); 78 base = rtcdrv->base; 79 80 if (alrm->enabled) { 81 ret = rtc_tm_to_time(&(alrm->time), &rtc_alarm); 82 if (ret != 0) 83 return ret; 84 85 rtc_alarm *= NSEC_PER_SEC; > 86 writel((rtc_alarm >> 32), base + TIMER_ALARM_HIGH); 87 writel(rtc_alarm, base + TIMER_ALARM_LOW); 88 } else { 89 /* 90 * if this function was called with enabled=0 91 * then it could mean that the application is 92 * trying to cancel an ongoing alarm 93 */ 94 rtc_status_reg = readl(base + TIMER_ALARM_STATUS); 95 if (rtc_status_reg) 96 writel(1, base + TIMER_CLEAR_ALARM); 97 } 98 99 return ret; 100 } 101 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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