Thanks for reporting. I will send out fix patch. -----Original Message----- From: kbuild test robot <l...@intel.com> Sent: Thursday, August 22, 2019 10:25 AM To: Tianyu Lan <tianyu....@microsoft.com> Cc: kbuild-...@01.org; linux-kernel@vger.kernel.org; tipbu...@zytor.com; Thomas Gleixner <t...@linutronix.de>; Michael Kelley <mikel...@microsoft.com> Subject: [tip:timers/core 34/34] drivers//clocksource/hyperv_timer.c:264:35: error: 'hv_sched_clock_offset' undeclared; did you mean 'sched_clock_register'?
tree: https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fkernel.googlesource.com%2Fpub%2Fscm%2Flinux%2Fkernel%2Fgit%2Ftip%2Ftip.git&data=02%7C01%7CTianyu.Lan%40microsoft.com%7Cfa01680d45d1424cbbc308d726a82122%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637020378361213701&sdata=56fY4vgmkc4Nk3ZqCZhRyaA%2BmfKSd%2Fp9eYXZUahw5uo%3D&reserved=0 timers/core head: b74e1d61dbc614ff35ef3ad9267c61ed06b09051 commit: b74e1d61dbc614ff35ef3ad9267c61ed06b09051 [34/34] clocksource/hyperv: Add Hyper-V specific sched clock function config: i386-randconfig-g002-201933 (attached as .config) compiler: gcc-7 (Debian 7.4.0-10) 7.4.0 reproduce: git checkout b74e1d61dbc614ff35ef3ad9267c61ed06b09051 # save the attached .config to linux build tree make ARCH=i386 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <l...@intel.com> All error/warnings (new ones prefixed by >>): drivers//clocksource/hyperv_timer.c: In function 'read_hv_sched_clock_msr': >> drivers//clocksource/hyperv_timer.c:264:35: error: 'hv_sched_clock_offset' >> undeclared (first use in this function); did you mean 'sched_clock_register'? return read_hv_clock_msr(NULL) - hv_sched_clock_offset; ^~~~~~~~~~~~~~~~~~~~~ sched_clock_register drivers//clocksource/hyperv_timer.c:264:35: note: each undeclared identifier is reported only once for each function it appears in drivers//clocksource/hyperv_timer.c: In function 'hv_init_clocksource': drivers//clocksource/hyperv_timer.c:334:2: error: 'hv_sched_clock_offset' undeclared (first use in this function); did you mean 'sched_clock_register'? hv_sched_clock_offset = hyperv_cs->read(hyperv_cs); ^~~~~~~~~~~~~~~~~~~~~ sched_clock_register drivers//clocksource/hyperv_timer.c: In function 'read_hv_sched_clock_msr': >> drivers//clocksource/hyperv_timer.c:265:1: warning: control reaches end of >> non-void function [-Wreturn-type] } ^ vim +264 drivers//clocksource/hyperv_timer.c 261 262 static u64 read_hv_sched_clock_msr(void) 263 { > 264 return read_hv_clock_msr(NULL) - hv_sched_clock_offset; > 265 } 266 --- 0-DAY kernel test infrastructure Open Source Technology Center https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.01.org%2Fpipermail%2Fkbuild-all&data=02%7C01%7CTianyu.Lan%40microsoft.com%7Cfa01680d45d1424cbbc308d726a82122%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637020378361213701&sdata=bmZV%2B2uKHUlwngubxhE2bZlfOqCRNYVDCXOs%2FWcy3f8%3D&reserved=0 Intel Corporation