tree: git://github.com/linux-chenxing/linux.git msc313_mainlining head: 04c62a6ed8b1b9034464e903809c8b6a9354bf6e commit: ef6b5b20ff3e51fa6026bc510f66980c5107698c [66/78] irqchip: MStar wakeup intc config: hexagon-buildonly-randconfig-r002-20211214 (https://download.01.org/0day-ci/archive/20211214/202112142011.TrAzr38n-lk...) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project b6a2ddb6c8ac29412b1361810972e15221fa021c) 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 # https://github.com/linux-chenxing/linux/commit/ef6b5b20ff3e51fa6026bc510f... git remote add chenxing git://github.com/linux-chenxing/linux.git git fetch --no-tags chenxing msc313_mainlining git checkout ef6b5b20ff3e51fa6026bc510f66980c5107698c # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash drivers/clocksource/ drivers/irqchip/ 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 >>): request_irq(irq, msc313_pm_wakeup_intc_chainedhandler, IRQF_SHARED, ^~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1 warning generated. vim +/warn_unused_result +132 drivers/irqchip/irq-msc313-pm-wakeup.c 97 98 static int __init msc313_pm_wakeup_intc_of_init(struct device_node *node, 99 struct device_node *parent) 100 { 101 int ret = 0, irq; 102 struct regmap *pmsleep; 103 struct msc313_sleep_intc *intc; 104 struct irq_domain *domain; 105 106 irq = of_irq_get(node, 0); 107 if (irq <= 0) 108 return irq; 109 110 pmsleep = syscon_regmap_lookup_by_phandle(node, "mstar,pmsleep"); 111 if (IS_ERR(pmsleep)) 112 return PTR_ERR(pmsleep); 113 114 intc = kzalloc(sizeof(*intc), GFP_KERNEL); 115 if (!intc) 116 return -ENOMEM; 117 118 intc->mask = regmap_field_alloc(pmsleep, field_mask); 119 intc->type = regmap_field_alloc(pmsleep, field_type); 120 intc->status = regmap_field_alloc(pmsleep, field_status); 121 122 /* The masks survive deep sleep so clear them. */ 123 regmap_field_write(intc->mask, ~0); 124 125 domain = irq_domain_add_linear(node, NUM_IRQ, 126 &msc313_pm_wakeup_intc_domain_ops, intc); 127 if (!domain) { 128 ret = -ENOMEM; 129 goto out_free; 130 } 131 133 "pmsleep", domain); 134 135 return 0; 136 137 out_free: 138 kfree(intc); 139 return ret; 140 } 141 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org