tree: git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git ti-rt-linux-5.4.y head: e76cd2a01c4f01c314e5e1518ca6f1addb014e2b commit: 41e5c46849b596ecedd275262201da72658bfe2d [10177/10184] net: ethernet: ti: icss-iep: Add support for generating perout/PPS signal for am57xx variant config: arm64-allyesconfig (attached as .config) compiler: aarch64-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 41e5c46849b596ecedd275262201da72658bfe2d # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): 511 | irqreturn_t icss_iep_cap_cmp_handler(int irq, void *dev_id) | ^~~~~~~~~~~~~~~~~~~~~~~~ git remote add ti git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git git fetch --no-tags ti ti-rt-linux-5.4.y git checkout 41e5c46849b596ecedd275262201da72658bfe2d vim +/icss_iep_cap_cmp_handler +511 drivers/net/ethernet/ti/icss_iep.c 510 512 { 513 struct icss_iep *iep = (struct icss_iep *)dev_id; 514 struct ptp_clock_event pevent; 515 unsigned int val, index = 0; 516 u64 ns; 517 518 regmap_read(iep->map, ICSS_IEP_CMP_STAT_REG, &val); 519 if (val & BIT(CMP_INDEX(index))) { 520 regmap_write(iep->map, ICSS_IEP_CMP_STAT_REG, BIT(CMP_INDEX(index))); 521 regmap_read(iep->map, ICSS_IEP_CMP1_REG0, &val); 522 ns = val; 523 regmap_read(iep->map, ICSS_IEP_CMP1_REG1, &val); 524 ns |= (u64)val << 32; 525 icss_iep_update_to_next_boundary(iep); 526 527 pevent.pps_times.ts_real = ns_to_timespec64(ns); 528 pevent.type = PTP_CLOCK_PPSUSR; 529 pevent.index = index; 530 ptp_clock_event(iep->ptp_clock, &pevent); 531 dev_dbg(iep->dev, "IEP:pps ts: %llu\n", ns); 532 } 533 534 return IRQ_HANDLED; 535 } 536 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org