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charset=us-ascii tree: https://git.kernel.org/pub/scm/linux/kernel/git/thomas.weissschuh/linux.git b4/vdso-alarm-clocks head: c8bb37f3267c7cbf3aed873255994d37a43122c9 commit: 16c670855b6263e33441b6502dd778778a33ae69 [3/5] vdso: Add alarmclock support infrastructure config: csky-randconfig-r2200-20261016 (https://download.01.org/0day-ci/archive/20261016/202610161018.bTkFTUke-lkp@intel.com/config) compiler: csky-linux-gcc (GCC) 14.3.0 smatch: v0.5.0-9187-g5189e3fb reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261016/202610161018.bTkFTUke-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202610161018.bTkFTUke-lkp@intel.com/ All errors (new ones prefixed by >>): csky-linux-ld: kernel/time/alarmtimer.o: in function `alarmtimer_rtc_add_device': >> kernel/time/alarmtimer.c:105:(.text+0x8f0): undefined reference to `vdso_time_enable_alarmclock' csky-linux-ld: kernel/time/alarmtimer.o: in function `__srcu_read_lock': >> include/linux/srcutiny.h:90:(.text+0x9a8): undefined reference to `vdso_time_enable_alarmclock' vim +105 kernel/time/alarmtimer.c 82 83 static int alarmtimer_rtc_add_device(struct device *dev) 84 { 85 struct rtc_device *rtc = to_rtc_device(dev); 86 struct platform_device *pdev; 87 int ret = 0; 88 89 if (rtcdev) 90 return -EBUSY; 91 92 if (!test_bit(RTC_FEATURE_ALARM, rtc->features)) 93 return -1; 94 if (!device_may_wakeup(rtc->dev.parent)) 95 return -1; 96 97 pdev = platform_device_register_data(dev, "alarmtimer", 98 PLATFORM_DEVID_AUTO, NULL, 0); 99 if (!IS_ERR(pdev)) 100 device_init_wakeup(&pdev->dev, true); 101 102 scoped_guard(spinlock_irqsave, &rtcdev_lock) { 103 if (!IS_ERR(pdev) && !rtcdev && try_module_get(rtc->owner)) { 104 rtcdev = rtc; > 105 vdso_time_enable_alarmclock(); 106 /* hold a reference so it doesn't go away */ 107 get_device(dev); 108 pdev = NULL; 109 } else { 110 ret = -1; 111 } 112 } 113 114 platform_device_unregister(pdev); 115 return ret; 116 } 117 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki