Hi Peng, kernel test robot noticed the following build errors: [auto build test ERROR on 01af33cc9894b4489fb68fa35c40e9fe85df63dc] url: https://github.com/intel-lab-lkp/linux/commits/Peng-Fan-OSS/dt-bindings-timer-nxp-sysctr-timer-support-i-MX95/20240125-191500 base: 01af33cc9894b4489fb68fa35c40e9fe85df63dc patch link: https://lore.kernel.org/r/20240125-imx-sysctr-v2-2-7332470cd7ae%40nxp.com patch subject: [PATCH v2 2/3] clocksource/drivers/imx-sysctr: drop use global variables config: i386-buildonly-randconfig-001-20240128 (https://download.01.org/0day-ci/archive/20240128/202401280840.br5xJEeO-lkp@xxxxxxxxx/config) compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240128/202401280840.br5xJEeO-lkp@xxxxxxxxx/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 <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202401280840.br5xJEeO-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> drivers/clocksource/timer-imx-sysctr.c:135:9: error: call to undeclared function 'kzalloc'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 135 | priv = kzalloc(sizeof(struct sysctr_private), GFP_KERNEL); | ^ drivers/clocksource/timer-imx-sysctr.c:135:9: note: did you mean 'vzalloc'? include/linux/vmalloc.h:141:14: note: 'vzalloc' declared here 141 | extern void *vzalloc(unsigned long size) __alloc_size(1); | ^ >> drivers/clocksource/timer-imx-sysctr.c:135:7: error: incompatible integer to pointer conversion assigning to 'struct sysctr_private *' from 'int' [-Wint-conversion] 135 | priv = kzalloc(sizeof(struct sysctr_private), GFP_KERNEL); | ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >> drivers/clocksource/timer-imx-sysctr.c:141:3: error: call to undeclared function 'kfree'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 141 | kfree(priv); | ^ drivers/clocksource/timer-imx-sysctr.c:141:3: note: did you mean 'vfree'? include/linux/vmalloc.h:161:13: note: 'vfree' declared here 161 | extern void vfree(const void *addr); | ^ 3 errors generated. vim +/kzalloc +135 drivers/clocksource/timer-imx-sysctr.c 128 129 static int __init sysctr_timer_init(struct device_node *np) 130 { 131 struct sysctr_private *priv; 132 void __iomem *base; 133 int ret; 134 > 135 priv = kzalloc(sizeof(struct sysctr_private), GFP_KERNEL); 136 if (!priv) 137 return -ENOMEM; 138 139 ret = timer_of_init(np, &to_sysctr); 140 if (ret) { > 141 kfree(priv); -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki