Hi, I love your patch! Perhaps something to improve: [auto build test WARNING on staging/staging-testing] [also build test WARNING on wireless-drivers-next/master wireless-drivers/master v5.8-rc3 next-20200629] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Ajay-Kathat-microchip-com/wilc10... base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git 9bea6eb3f59cb2fad8b46d91c666a17d0aa53456 config: x86_64-randconfig-a005-20200630 (attached as .config) compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project cf1d04484344be52ada8178e41d18fd15a9b880c) 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 # install x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 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 >>): In file included from kernel/rcu/update.c:587: kernel/rcu/tasks.h:405:6: warning: no previous prototype for function 'rcu_tasks_postscan' void rcu_tasks_postscan(struct list_head ^ kernel/rcu/tasks.h:405:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void rcu_tasks_postscan(struct list_head ^ static kernel/rcu/tasks.h:757:6: warning: no previous prototype for function 'rcu_read_unlock_trace_special' void rcu_read_unlock_trace_special(struct task_struct int nesting) ^ kernel/rcu/tasks.h:757:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void rcu_read_unlock_trace_special(struct task_struct int nesting) ^ static kernel/rcu/tasks.h:1135:6: warning: no previous prototype for function 'synchronize_rcu_tasks_trace' void synchronize_rcu_tasks_trace(void) ^ kernel/rcu/tasks.h:1135:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void synchronize_rcu_tasks_trace(void) ^ static kernel/rcu/tasks.h:1148:6: warning: no previous prototype for function 'rcu_barrier_tasks_trace' void rcu_barrier_tasks_trace(void) ^ kernel/rcu/tasks.h:1148:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void rcu_barrier_tasks_trace(void) ^ static kernel/events/core.c:6490:6: warning: no previous prototype for function 'perf_pmu_snapshot_aux' long perf_pmu_snapshot_aux(struct perf_buffer ^ kernel/events/core.c:6490:1: note: declare 'static' if the function is not intended to be used outside of this translation unit long perf_pmu_snapshot_aux(struct perf_buffer ^ static static const struct wiphy_wowlan_support wowlan_support = { ^ kernel/trace/trace.c:1535:37: warning: unused variable 'tracing_max_lat_fops' static const struct file_operations tracing_max_lat_fops; ^ kernel/sched/core.c:2117:6: warning: no previous prototype for function 'sched_set_stop_task' void sched_set_stop_task(int cpu, struct task_struct ^ kernel/sched/core.c:2117:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void sched_set_stop_task(int cpu, struct task_struct ^ static kernel/sched/core.c:4263:35: warning: no previous prototype for function 'schedule_user' asmlinkage __visible void __sched schedule_user(void) ^ kernel/sched/core.c:4263:22: note: declare 'static' if the function is not intended to be used outside of this translation unit asmlinkage __visible void __sched schedule_user(void) ^ static 4 warnings generated. kernel/sched/core.c:808:28: warning: unused function 'uclamp_bucket_base_value' static inline unsigned int uclamp_bucket_base_value(unsigned int clamp_value) ^ kernel/sched/core.c:1047:1: warning: unused function 'uclamp_update_active' uclamp_update_active(struct task_struct enum uclamp_id clamp_id) ^ kernel/trace/trace_seq.c:142: warning: Function parameter or member 'args' not described in 'trace_seq_vprintf' kernel/bpf/core.c:1353:12: warning: no previous prototype for function 'bpf_probe_read_kernel' u64 __weak bpf_probe_read_kernel(void u32 size, const void ^ kernel/bpf/core.c:1353:1: note: declare 'static' if the function is not intended to be used outside of this translation unit u64 __weak bpf_probe_read_kernel(void u32 size, const void ^ static kernel/time/hrtimer.c:120:21: warning: initializer overrides prior initialization of this subobject = HRTIMER_BASE_REALTIME, ^~~~~~~~~~~~~~~~~~~~~ kernel/time/hrtimer.c:118:27: note: previous initialization is here [0 ... MAX_CLOCKS - 1] = HRTIMER_MAX_CLOCK_BASES, ^~~~~~~~~~~~~~~~~~~~~~~ kernel/time/hrtimer.c:121:22: warning: initializer overrides prior initialization of this subobject = HRTIMER_BASE_MONOTONIC, ^~~~~~~~~~~~~~~~~~~~~~ kernel/time/hrtimer.c:118:27: note: previous initialization is here [0 ... MAX_CLOCKS - 1] = HRTIMER_MAX_CLOCK_BASES, ^~~~~~~~~~~~~~~~~~~~~~~ kernel/time/hrtimer.c:122:21: warning: initializer overrides prior initialization of this subobject = HRTIMER_BASE_BOOTTIME, ^~~~~~~~~~~~~~~~~~~~~ kernel/time/hrtimer.c:118:27: note: previous initialization is here [0 ... MAX_CLOCKS - 1] = HRTIMER_MAX_CLOCK_BASES, ^~~~~~~~~~~~~~~~~~~~~~~ kernel/time/hrtimer.c:123:17: warning: initializer overrides prior initialization of this subobject = HRTIMER_BASE_TAI, ^~~~~~~~~~~~~~~~ kernel/time/hrtimer.c:118:27: note: previous initialization is here [0 ... MAX_CLOCKS - 1] = HRTIMER_MAX_CLOCK_BASES, ^~~~~~~~~~~~~~~~~~~~~~~ kernel/dma/swiotlb.c:278:1: warning: no previous prototype for function 'swiotlb_late_init_with_default_size' swiotlb_late_init_with_default_size(size_t default_size) ^ kernel/dma/swiotlb.c:277:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int ^ static kernel/time/hrtimer.c:143:20: warning: unused function 'is_migration_base' static inline bool is_migration_base(struct hrtimer_clock_base ^ kernel/time/hrtimer.c:617:19: warning: unused function 'hrtimer_hres_active' static inline int hrtimer_hres_active(void) ^ 1 warning generated. kernel/trace/ring_buffer.c:1141: warning: Function parameter or member 'cpu_buffer' not described in 'rb_check_list' kernel/trace/ring_buffer.c:1141: warning: Function parameter or member 'list' not described in 'rb_check_list' 1 warning generated. kernel/panic.c:85:13: warning: no previous prototype for function 'panic_smp_self_stop' void __weak panic_smp_self_stop(void) ^ kernel/panic.c:85:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __weak panic_smp_self_stop(void) ^ static kernel/panic.c:95:13: warning: no previous prototype for function 'nmi_panic_self_stop' void __weak nmi_panic_self_stop(struct pt_regs ^ kernel/panic.c:95:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __weak nmi_panic_self_stop(struct pt_regs ^ static kernel/panic.c:106:13: warning: no previous prototype for function 'crash_smp_send_stop' void __weak crash_smp_send_stop(void) ^ kernel/panic.c:106:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __weak crash_smp_send_stop(void) ^ static kernel/locking/lockdep.c:668:4: warning: format specifies type 'short' but the argument has type 'int' class->wait_type_outer class->wait_type_inner, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 3 warnings generated. -- static const struct wiphy_wowlan_support wowlan_support = { ^ 1 warning generated. drivers/net/ethernet/intel/e1000/e1000_hw.c:1907: warning: Excess function parameter 'mii_reg' description in 'e1000_config_mac_to_phy' drivers/net/ethernet/intel/e1000/e1000_hw.c:2930: warning: Function parameter or member 'phy_data' not described in 'e1000_write_phy_reg' drivers/net/ethernet/intel/e1000/e1000_hw.c:2930: warning: Excess function parameter 'data' description in 'e1000_write_phy_reg' drivers/net/ethernet/intel/e1000/e1000_hw.c:4788: warning: Excess function parameter 'tx_packets' description in 'e1000_update_adaptive' drivers/net/ethernet/intel/e1000/e1000_hw.c:4788: warning: Excess function parameter 'total_collisions' description in 'e1000_update_adaptive' drivers/net/ethernet/intel/e1000/e1000_hw.c:5079: warning: Excess function parameter 'downshift' description in 'e1000_check_downshift' drivers/net/ethernet/intel/e1000/e1000_main.c:212: warning: Function parameter or member 'hw' not described in 'e1000_get_hw_dev' drivers/net/ethernet/intel/e1000/e1000_main.c:365: warning: Function parameter or member 'adapter' not described in 'e1000_configure' drivers/net/ethernet/intel/e1000/e1000_main.c:3500: warning: Function parameter or member 'txqueue' not described in 'e1000_tx_timeout' drivers/net/ethernet/intel/e1000/e1000_main.c:3799: warning: Function parameter or member 'napi' not described in 'e1000_clean' drivers/net/ethernet/intel/e1000/e1000_main.c:3799: warning: Function parameter or member 'budget' not described in 'e1000_clean' drivers/net/ethernet/intel/e1000/e1000_main.c:3799: warning: Excess function parameter 'adapter' description in 'e1000_clean' drivers/net/ethernet/intel/e1000/e1000_main.c:3830: warning: Function parameter or member 'tx_ring' not described in 'e1000_clean_tx_irq' drivers/net/ethernet/intel/e1000/e1000_main.c:3946: warning: Function parameter or member 'skb' not described in 'e1000_rx_checksum' drivers/net/ethernet/intel/e1000/e1000_main.c:3946: warning: Excess function parameter 'sk_buff' description in 'e1000_rx_checksum' drivers/net/ethernet/intel/e1000/e1000_main.c:3982: warning: Function parameter or member 'bi' not described in 'e1000_consume_page' drivers/net/ethernet/intel/e1000/e1000_main.c:3982: warning: Function parameter or member 'skb' not described in 'e1000_consume_page' drivers/net/ethernet/intel/e1000/e1000_main.c:3982: warning: Function parameter or member 'length' not described in 'e1000_consume_page' drivers/net/ethernet/intel/e1000/e1000_main.c:4020: warning: Function parameter or member 'stats' not described in 'e1000_tbi_adjust_stats' drivers/net/ethernet/intel/e1000/e1000_main.c:4561: warning: Function parameter or member 'rx_ring' not described in 'e1000_alloc_rx_buffers' drivers/net/ethernet/intel/e1000/e1000_main.c:4561: warning: Function parameter or member 'cleaned_count' not described in 'e1000_alloc_rx_buffers' drivers/net/ethernet/intel/e1000/e1000_main.c:4674: warning: Function parameter or member 'adapter' not described in 'e1000_smartspeed' drivers/net/ethernet/intel/e1000/e1000_main.c:4733: warning: Function parameter or member 'netdev' not described in 'e1000_ioctl' drivers/net/ethernet/intel/e1000/e1000_main.c:4733: warning: Function parameter or member 'ifr' not described in 'e1000_ioctl' drivers/net/ethernet/intel/e1000/e1000_main.c:4733: warning: Function parameter or member 'cmd' not described in 'e1000_ioctl' drivers/net/ethernet/intel/e1000/e1000_main.c:4752: warning: Function parameter or member 'netdev' not described in 'e1000_mii_ioctl' drivers/net/ethernet/intel/e1000/e1000_main.c:4752: warning: Function parameter or member 'ifr' not described in 'e1000_mii_ioctl' drivers/net/ethernet/intel/e1000/e1000_main.c:4752: warning: Function parameter or member 'cmd' not described in 'e1000_mii_ioctl' -- static const struct wiphy_wowlan_support wowlan_support = { ^ 1 warning generated. -- static const struct wiphy_wowlan_support wowlan_support = { ^ 1 warning generated. drivers/net/ethernet/intel/e1000/e1000_hw.c:1907: warning: Excess function parameter 'mii_reg' description in 'e1000_config_mac_to_phy' drivers/net/ethernet/intel/e1000/e1000_hw.c:2930: warning: Function parameter or member 'phy_data' not described in 'e1000_write_phy_reg' drivers/net/ethernet/intel/e1000/e1000_hw.c:2930: warning: Excess function parameter 'data' description in 'e1000_write_phy_reg' drivers/net/ethernet/intel/e1000/e1000_hw.c:4788: warning: Excess function parameter 'tx_packets' description in 'e1000_update_adaptive' drivers/net/ethernet/intel/e1000/e1000_hw.c:4788: warning: Excess function parameter 'total_collisions' description in 'e1000_update_adaptive' drivers/net/ethernet/intel/e1000/e1000_hw.c:5079: warning: Excess function parameter 'downshift' description in 'e1000_check_downshift' drivers/net/ethernet/intel/e1000/e1000_main.c:212: warning: Function parameter or member 'hw' not described in 'e1000_get_hw_dev' drivers/net/ethernet/intel/e1000/e1000_main.c:365: warning: Function parameter or member 'adapter' not described in 'e1000_configure' drivers/net/ethernet/intel/e1000/e1000_main.c:3500: warning: Function parameter or member 'txqueue' not described in 'e1000_tx_timeout' drivers/net/ethernet/intel/e1000/e1000_main.c:3799: warning: Function parameter or member 'napi' not described in 'e1000_clean' drivers/net/ethernet/intel/e1000/e1000_main.c:3799: warning: Function parameter or member 'budget' not described in 'e1000_clean' drivers/net/ethernet/intel/e1000/e1000_main.c:3799: warning: Excess function parameter 'adapter' description in 'e1000_clean' drivers/net/ethernet/intel/e1000/e1000_main.c:3830: warning: Function parameter or member 'tx_ring' not described in 'e1000_clean_tx_irq' drivers/net/ethernet/intel/e1000/e1000_main.c:3946: warning: Function parameter or member 'skb' not described in 'e1000_rx_checksum' drivers/net/ethernet/intel/e1000/e1000_main.c:3946: warning: Excess function parameter 'sk_buff' description in 'e1000_rx_checksum' drivers/net/ethernet/intel/e1000/e1000_main.c:3982: warning: Function parameter or member 'bi' not described in 'e1000_consume_page' drivers/net/ethernet/intel/e1000/e1000_main.c:3982: warning: Function parameter or member 'skb' not described in 'e1000_consume_page' drivers/net/ethernet/intel/e1000/e1000_main.c:3982: warning: Function parameter or member 'length' not described in 'e1000_consume_page' drivers/net/ethernet/intel/e1000/e1000_main.c:4020: warning: Function parameter or member 'stats' not described in 'e1000_tbi_adjust_stats' drivers/net/ethernet/intel/e1000/e1000_main.c:4561: warning: Function parameter or member 'rx_ring' not described in 'e1000_alloc_rx_buffers' drivers/net/ethernet/intel/e1000/e1000_main.c:4561: warning: Function parameter or member 'cleaned_count' not described in 'e1000_alloc_rx_buffers' drivers/net/ethernet/intel/e1000/e1000_main.c:4674: warning: Function parameter or member 'adapter' not described in 'e1000_smartspeed' drivers/net/ethernet/intel/e1000/e1000_main.c:4733: warning: Function parameter or member 'netdev' not described in 'e1000_ioctl' drivers/net/ethernet/intel/e1000/e1000_main.c:4733: warning: Function parameter or member 'ifr' not described in 'e1000_ioctl' drivers/net/ethernet/intel/e1000/e1000_main.c:4733: warning: Function parameter or member 'cmd' not described in 'e1000_ioctl' drivers/net/ethernet/intel/e1000/e1000_main.c:4752: warning: Function parameter or member 'netdev' not described in 'e1000_mii_ioctl' drivers/net/ethernet/intel/e1000/e1000_main.c:4752: warning: Function parameter or member 'ifr' not described in 'e1000_mii_ioctl' drivers/net/ethernet/intel/e1000/e1000_main.c:4752: warning: Function parameter or member 'cmd' not described in 'e1000_mii_ioctl' WARNING: Symbol version dump "Module.symvers" is missing. Modules may not have dependencies or modversions. WARNING: modpost: Symbol info of vmlinux is missing. Unresolved symbol check will be entirely skipped. vim +/wowlan_support +49 drivers/net/wireless/microchip/wilc1000/cfg80211.c 15162fbc78a74a drivers/staging/wilc1000/wilc_wfi_cfgoperations.c Arnd Bergmann 2015-11-16 48 73584a40d7484f drivers/staging/wilc1000/wilc_wfi_cfgoperations.c Glen Lee 2016-01-25 @49 static const struct wiphy_wowlan_support wowlan_support = { 73584a40d7484f drivers/staging/wilc1000/wilc_wfi_cfgoperations.c Glen Lee 2016-01-25 50 .flags = WIPHY_WOWLAN_ANY 73584a40d7484f drivers/staging/wilc1000/wilc_wfi_cfgoperations.c Glen Lee 2016-01-25 51 }; 73584a40d7484f drivers/staging/wilc1000/wilc_wfi_cfgoperations.c Glen Lee 2016-01-25 52 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org