Hi Fugang, FYI, the error/warning still remains. tree: https://github.com/Freescale/linux-fslc 5.4-2.3.x-imx head: ed8f0b9dafc6dfcfccb4507a8ae71aa294b2088b commit: f186a4e65f54a28973c743f8c007b18c1ce95be6 [14893/20737] MLK-24962 net: wireless: nxp: mxm_wifiex: upgrade to mxm5x16203 release config: nds32-allyesconfig (attached as .config) compiler: nds32le-linux-gcc (GCC) 11.2.0 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 # https://github.com/Freescale/linux-fslc/commit/f186a4e65f54a28973c743f8c0... git remote add freescale-fslc https://github.com/Freescale/linux-fslc git fetch --no-tags freescale-fslc 5.4-2.3.x-imx git checkout f186a4e65f54a28973c743f8c007b18c1ce95be6 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=nds32 SHELL=/bin/bash M=drivers/net/wireless/nxp/mxm_wifiex/wlan_src If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): In file included from ./arch/nds32/include/generated/asm/bug.h:1, from include/linux/bug.h:5, from include/linux/thread_info.h:12, from include/asm-generic/preempt.h:5, from ./arch/nds32/include/generated/asm/preempt.h:1, from include/linux/preempt.h:78, from include/linux/spinlock.h:51, from include/linux/seqlock.h:36, from include/linux/time.h:6, from include/linux/stat.h:19, from include/linux/module.h:10, from drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_main.h:38, from drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_main.c:29: include/linux/dma-mapping.h: In function 'dma_map_resource': arch/nds32/include/asm/memory.h:82:40: warning: comparison of unsigned expression in '>= 0' is always true [-Wtype-limits] 82 | #define pfn_valid(pfn) ((pfn) >= PHYS_PFN_OFFSET && (pfn) < (PHYS_PFN_OFFSET + max_mapnr)) | ^~ include/asm-generic/bug.h:139:34: note: in definition of macro 'WARN_ON_ONCE' 139 | int __ret_warn_once = !!(condition); \ | ^~~~~~~~~ include/linux/dma-mapping.h:355:26: note: in expansion of macro 'pfn_valid' 355 | if (WARN_ON_ONCE(pfn_valid(PHYS_PFN(phys_addr)))) | ^~~~~~~~~ In file included from drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_main.c:37: drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_pcie.h: At top level: 133 | struct msix_entry msix_entries[PCIE_NUM_MSIX_VECTORS]; | ^~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_main.c: In function 'woal_get_mode': drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_main.c:990:13: warning: variable 'ret' set but not used [-Wunused-but-set-variable] 990 | int ret = 0; | ^~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_main.c: At top level: drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_main.c:2150:6: warning: no previous prototype for 'woal_request_init_user_conf_callback' [-Wmissing-prototypes] 2150 | void woal_request_init_user_conf_callback(const struct firmware *firmware, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_main.c:2650:13: warning: no previous prototype for 'woal_add_card_dpc' [-Wmissing-prototypes] 2650 | mlan_status woal_add_card_dpc(moal_handle *handle) | ^~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_main.c:3355:6: warning: no previous prototype for 'woal_fill_mlan_buffer' [-Wmissing-prototypes] 3355 | void woal_fill_mlan_buffer(moal_private *priv, mlan_buffer *pmbuf, | ^~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_main.c:4283:6: warning: no previous prototype for 'woal_flush_evt_queue' [-Wmissing-prototypes] 4283 | void woal_flush_evt_queue(moal_handle *handle) | ^~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_main.c:4866:6: warning: no previous prototype for 'woal_ioctl_timeout' [-Wmissing-prototypes] 4866 | void woal_ioctl_timeout(moal_handle *handle) | ^~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_main.c:5172:6: warning: no previous prototype for 'woal_tcp_ack_timer_func' [-Wmissing-prototypes] 5172 | void woal_tcp_ack_timer_func(void *context) | ^~~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_main.c:5239:6: warning: no previous prototype for 'woal_send_tcp_ack' [-Wmissing-prototypes] 5239 | void woal_send_tcp_ack(moal_private *priv, struct tcp_sess *tcp_session) | ^~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_main.c:5296:5: warning: no previous prototype for 'woal_process_tcp_ack' [-Wmissing-prototypes] 5296 | int woal_process_tcp_ack(moal_private *priv, mlan_buffer *pmbuf) | ^~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_main.c:8025:5: warning: no previous prototype for 'woal_netdev_poll_rx' [-Wmissing-prototypes] 8025 | int woal_netdev_poll_rx(struct napi_struct *napi, int budget) | ^~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_main.c:8908:6: warning: no previous prototype for 'woal_pre_reset' [-Wmissing-prototypes] 8908 | void woal_pre_reset(moal_handle *handle) | ^~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_main.c:8926:6: warning: no previous prototype for 'woal_post_reset' [-Wmissing-prototypes] 8926 | void woal_post_reset(moal_handle *handle) | ^~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_main.c: In function 'woal_request_fw_reload': 9019 | pci_reset_function(pdev); | ^~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_main.c: In function 'mfg_mode_setup': drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_main.c:9387:17: error: 'mfg_mode' undeclared (first use in this function) 9387 | mfg_mode = 1; | ^~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_main.c:9387:17: note: each undeclared identifier is reported only once for each function it appears in In file included from drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_main.h:130, from drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_main.c:29: At top level: drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_priv.h:282:34: warning: 'woal_private_args' defined but not used [-Wunused-const-variable=] 282 | static const struct iw_priv_args woal_private_args[] = { | ^~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors -- In file included from ./arch/nds32/include/generated/asm/bug.h:1, from include/linux/bug.h:5, from include/linux/thread_info.h:12, from include/asm-generic/preempt.h:5, from ./arch/nds32/include/generated/asm/preempt.h:1, from include/linux/preempt.h:78, from include/linux/spinlock.h:51, from include/linux/seqlock.h:36, from include/linux/time.h:6, from include/linux/stat.h:19, from include/linux/module.h:10, from drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_main.h:38, from drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_shim.c:28: include/linux/dma-mapping.h: In function 'dma_map_resource': arch/nds32/include/asm/memory.h:82:40: warning: comparison of unsigned expression in '>= 0' is always true [-Wtype-limits] 82 | #define pfn_valid(pfn) ((pfn) >= PHYS_PFN_OFFSET && (pfn) < (PHYS_PFN_OFFSET + max_mapnr)) | ^~ include/asm-generic/bug.h:139:34: note: in definition of macro 'WARN_ON_ONCE' 139 | int __ret_warn_once = !!(condition); \ | ^~~~~~~~~ include/linux/dma-mapping.h:355:26: note: in expansion of macro 'pfn_valid' 355 | if (WARN_ON_ONCE(pfn_valid(PHYS_PFN(phys_addr)))) | ^~~~~~~~~ In file included from drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_shim.c:36: drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_pcie.h: At top level: 133 | struct msix_entry msix_entries[PCIE_NUM_MSIX_VECTORS]; | ^~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_shim.c: In function 'moal_print': drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_shim.c:3005:25: warning: function 'moal_print' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] 3005 | vprintk(pformat, args); | ^~~~~~~ In file included from drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_main.h:130, from drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_shim.c:28: At top level: drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_priv.h:282:34: warning: 'woal_private_args' defined but not used [-Wunused-const-variable=] 282 | static const struct iw_priv_args woal_private_args[] = { | ^~~~~~~~~~~~~~~~~ -- In file included from ./arch/nds32/include/generated/asm/bug.h:1, from include/linux/bug.h:5, from include/linux/thread_info.h:12, from include/asm-generic/preempt.h:5, from ./arch/nds32/include/generated/asm/preempt.h:1, from include/linux/preempt.h:78, from include/linux/spinlock.h:51, from include/linux/seqlock.h:36, from include/linux/time.h:6, from include/linux/stat.h:19, from include/linux/module.h:10, from drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_main.h:38, from drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c:28: include/linux/dma-mapping.h: In function 'dma_map_resource': arch/nds32/include/asm/memory.h:82:40: warning: comparison of unsigned expression in '>= 0' is always true [-Wtype-limits] 82 | #define pfn_valid(pfn) ((pfn) >= PHYS_PFN_OFFSET && (pfn) < (PHYS_PFN_OFFSET + max_mapnr)) | ^~ include/asm-generic/bug.h:139:34: note: in definition of macro 'WARN_ON_ONCE' 139 | int __ret_warn_once = !!(condition); \ | ^~~~~~~~~ include/linux/dma-mapping.h:355:26: note: in expansion of macro 'pfn_valid' 355 | if (WARN_ON_ONCE(pfn_valid(PHYS_PFN(phys_addr)))) | ^~~~~~~~~ In file included from drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c:48: drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_pcie.h: At top level: 133 | struct msix_entry msix_entries[PCIE_NUM_MSIX_VECTORS]; | ^~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c:130:13: warning: no previous prototype for 'parse_arguments' [-Wmissing-prototypes] 130 | mlan_status parse_arguments(t_u8 *pos, int *data, int datalen, | ^~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c:190:5: warning: no previous prototype for 'string2raw' [-Wmissing-prototypes] 190 | int string2raw(unsigned char *str, unsigned char *raw, int raw_size) | ^~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c:293:13: warning: no previous prototype for 'woal_set_miracast_mode' [-Wmissing-prototypes] 293 | mlan_status woal_set_miracast_mode(moal_private *priv, t_u8 *pdata, size_t len) | ^~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c:341:5: warning: no previous prototype for 'woal_get_priv_driver_version' [-Wmissing-prototypes] 341 | int woal_get_priv_driver_version(moal_private *priv, t_u8 *respbuf, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c:570:5: warning: no previous prototype for 'woal_priv_customie' [-Wmissing-prototypes] 570 | int woal_priv_customie(moal_private *priv, t_u8 *respbuf, t_u32 respbuflen) | ^~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c:633:5: warning: no previous prototype for 'woal_setget_priv_bandcfg' [-Wmissing-prototypes] 633 | int woal_setget_priv_bandcfg(moal_private *priv, t_u8 *respbuf, | ^~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c:760:5: warning: no previous prototype for 'woal_setget_priv_httxcfg' [-Wmissing-prototypes] 760 | int woal_setget_priv_httxcfg(moal_private *priv, t_u8 *respbuf, | ^~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c:859:5: warning: no previous prototype for 'woal_setget_priv_htcapinfo' [-Wmissing-prototypes] 859 | int woal_setget_priv_htcapinfo(moal_private *priv, t_u8 *respbuf, | ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c:961:5: warning: no previous prototype for 'woal_setget_priv_addbapara' [-Wmissing-prototypes] 961 | int woal_setget_priv_addbapara(moal_private *priv, t_u8 *respbuf, | ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c:1067:5: warning: no previous prototype for 'woal_priv_delba' [-Wmissing-prototypes] 1067 | int woal_priv_delba(moal_private *priv, t_u8 *respbuf, t_u32 respbuflen) | ^~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c:1163:5: warning: no previous prototype for 'woal_priv_rejectaddbareq' [-Wmissing-prototypes] 1163 | int woal_priv_rejectaddbareq(moal_private *priv, t_u8 *respbuf, | ^~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c:1243:13: warning: no previous prototype for 'woal_ioctl_addba_reject' [-Wmissing-prototypes] 1243 | mlan_status woal_ioctl_addba_reject(moal_private *priv, t_u32 action, | ^~~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c:1344:13: warning: no previous prototype for 'woal_ioctl_addba_param' [-Wmissing-prototypes] 1344 | mlan_status woal_ioctl_addba_param(moal_private *priv, t_u32 action, | ^~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c:1393:5: warning: no previous prototype for 'woal_set_rx_ba_winsize' [-Wmissing-prototypes] 1393 | int woal_set_rx_ba_winsize(moal_private *priv, t_u8 *respbuf, int respbuflen) | ^~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c:1472:5: warning: no previous prototype for 'woal_set_tx_ba_winsize' [-Wmissing-prototypes] 1472 | int woal_set_tx_ba_winsize(moal_private *priv, t_u8 *respbuf, int respbuflen) | ^~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c:1557:5: warning: no previous prototype for 'woal_setget_priv_aggrpriotbl' [-Wmissing-prototypes] 1557 | int woal_setget_priv_aggrpriotbl(moal_private *priv, t_u8 *respbuf, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c:1645:5: warning: no previous prototype for 'woal_setget_priv_addbareject' [-Wmissing-prototypes] 1645 | int woal_setget_priv_addbareject(moal_private *priv, t_u8 *respbuf, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c:1728:5: warning: no previous prototype for 'woal_setget_priv_vhtcfg' [-Wmissing-prototypes] 1728 | int woal_setget_priv_vhtcfg(moal_private *priv, t_u8 *respbuf, t_u32 respbuflen) | ^~~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c:1883:5: warning: no previous prototype for 'woal_setget_priv_opermodecfg' [-Wmissing-prototypes] 1883 | int woal_setget_priv_opermodecfg(moal_private *priv, t_u8 *respbuf, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c:1966:5: warning: no previous prototype for 'woal_get_priv_datarate' [-Wmissing-prototypes] 1966 | int woal_get_priv_datarate(moal_private *priv, t_u8 *respbuf, t_u32 respbuflen) | ^~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c:2016:5: warning: no previous prototype for 'woal_setget_priv_txratecfg' [-Wmissing-prototypes] 2016 | int woal_setget_priv_txratecfg(moal_private *priv, t_u8 *respbuf, | ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c: In function 'woal_get_stats_info': drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c:2229:13: warning: variable 'ret' set but not used [-Wunused-but-set-variable] 2229 | int ret = 0; | ^~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c: At top level: drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c:2281:5: warning: no previous prototype for 'woal_get_priv_getlog' [-Wmissing-prototypes] 2281 | int woal_get_priv_getlog(moal_private *priv, t_u8 *respbuf, t_u32 respbuflen) | ^~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c:2321:5: warning: no previous prototype for 'woal_setget_priv_esuppmode' [-Wmissing-prototypes] 2321 | int woal_setget_priv_esuppmode(moal_private *priv, t_u8 *respbuf, | ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c:2411:5: warning: no previous prototype for 'woal_setget_priv_passphrase' [-Wmissing-prototypes] 2411 | int woal_setget_priv_passphrase(moal_private *priv, t_u8 *respbuf, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c:2616:5: warning: no previous prototype for 'woal_priv_deauth' [-Wmissing-prototypes] 2616 | int woal_priv_deauth(moal_private *priv, t_u8 *respbuf, t_u32 respbuflen) | ^~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c:2833:5: warning: no previous prototype for 'woal_priv_bssrole' [-Wmissing-prototypes] 2833 | int woal_priv_bssrole(moal_private *priv, t_u8 *respbuf, t_u32 respbuflen) | ^~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c:2914:5: warning: no previous prototype for 'woal_priv_setuserscan' [-Wmissing-prototypes] 2914 | int woal_priv_setuserscan(moal_private *priv, t_u8 *respbuf, t_u32 respbuflen) | ^~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c:2948:5: warning: no previous prototype for 'woal_priv_get_chanstats' [-Wmissing-prototypes] 2948 | int woal_priv_get_chanstats(moal_private *priv, t_u8 *respbuf, t_u32 respbuflen) | ^~~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c:2988:5: warning: no previous prototype for 'moal_ret_get_scan_table_ioctl' [-Wmissing-prototypes] 2988 | int moal_ret_get_scan_table_ioctl(t_u8 *respbuf, t_u32 respbuflen, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c:3065:5: warning: no previous prototype for 'woal_priv_getscantable' [-Wmissing-prototypes] 3065 | int woal_priv_getscantable(moal_private *priv, t_u8 *respbuf, t_u32 respbuflen) | ^~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_eth_ioctl.c:3126:5: warning: no previous prototype for 'woal_priv_extcapcfg' [-Wmissing-prototypes] 3126 | int woal_priv_extcapcfg(moal_private *priv, t_u8 *respbuf, t_u32 respbuflen) | ^~~~~~~~~~~~~~~~~~~ -- In file included from ./arch/nds32/include/generated/asm/bug.h:1, from include/linux/bug.h:5, from include/linux/mmdebug.h:5, from include/linux/gfp.h:5, from include/linux/firmware.h:7, from drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_pcie.c:29: include/linux/dma-mapping.h: In function 'dma_map_resource': arch/nds32/include/asm/memory.h:82:40: warning: comparison of unsigned expression in '>= 0' is always true [-Wtype-limits] 82 | #define pfn_valid(pfn) ((pfn) >= PHYS_PFN_OFFSET && (pfn) < (PHYS_PFN_OFFSET + max_mapnr)) | ^~ include/asm-generic/bug.h:139:34: note: in definition of macro 'WARN_ON_ONCE' 139 | int __ret_warn_once = !!(condition); \ | ^~~~~~~~~ include/linux/dma-mapping.h:355:26: note: in expansion of macro 'pfn_valid' 355 | if (WARN_ON_ONCE(pfn_valid(PHYS_PFN(phys_addr)))) | ^~~~~~~~~ In file included from drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_pcie.c:31: drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_pcie.h: At top level: 133 | struct msix_entry msix_entries[PCIE_NUM_MSIX_VECTORS]; | ^~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_pcie.c:394:5: warning: no previous prototype for 'woal_pcie_probe' [-Wmissing-prototypes] 394 | int woal_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id) | ^~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_pcie.c: In function 'woal_pcie_probe': 441 | if (pci_is_enabled(pdev)) | ^~~~~~~~~~~~~~ | pci_acs_enabled drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_pcie.c: At top level: drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_pcie.c:896:13: warning: no previous prototype for 'woal_pcie_write_data_sync' [-Wmissing-prototypes] 896 | mlan_status woal_pcie_write_data_sync(moal_handle *handle, mlan_buffer *pmbuf, | ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_pcie.c:912:13: warning: no previous prototype for 'woal_pcie_read_data_sync' [-Wmissing-prototypes] 912 | mlan_status woal_pcie_read_data_sync(moal_handle *handle, mlan_buffer *pmbuf, | ^~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_pcie.c: In function 'woal_pcie_init': 1089 | ret = pci_request_region(pdev, 0, DRV_NAME); | ^~~~~~~~~~~~~~~~~~ | pci_request_regions 1118 | pci_release_region(pdev, 2); | ^~~~~~~~~~~~~~~~~~ | pci_release_regions drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_pcie.c: In function 'woal_pcie_register_dev': 1174 | ret = pci_enable_msix_exact(pdev, card->msix_entries, nvec); | ^~~~~~~~~~~~~~~~~~~~~ 1197 | pci_disable_msix(pdev); | ^~~~~~~~~~~~~~~~ | pci_disable_sriov 1209 | ret = pci_enable_msi(pdev); | ^~~~~~~~~~~~~~ | pci_enable_ats 1216 | pci_disable_msi(pdev); | ^~~~~~~~~~~~~~~ | pci_disable_ats drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_pcie.c: At top level: drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_pcie.c:1418:5: warning: no previous prototype for 'woal_pcie_dump_reg_info' [-Wmissing-prototypes] 1418 | int woal_pcie_dump_reg_info(moal_handle *phandle, t_u8 *buffer) | ^~~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_pcie.c:1752:13: warning: no previous prototype for 'woal_read_reg_eight_bit' [-Wmissing-prototypes] 1752 | mlan_status woal_read_reg_eight_bit(moal_handle *handle, t_u32 reg, t_u8 *data) | ^~~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_pcie.c:1767:13: warning: no previous prototype for 'woal_pcie_rdwr_firmware' [-Wmissing-prototypes] 1767 | rdwr_status woal_pcie_rdwr_firmware(moal_handle *phandle, t_u8 doneflag) | ^~~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_pcie.c:2013:6: warning: no previous prototype for 'woal_pcie_dump_fw_info_v2' [-Wmissing-prototypes] 2013 | void woal_pcie_dump_fw_info_v2(moal_handle *phandle) | ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_pcie.c:2192:6: warning: no previous prototype for 'woal_pcie_dump_fw_info' [-Wmissing-prototypes] 2192 | void woal_pcie_dump_fw_info(moal_handle *phandle) | ^~~~~~~~~~~~~~~~~~~~~~ In file included from drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_main.h:130, from drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_pcie.h:62, from drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_pcie.c:31: drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_priv.h:282:34: warning: 'woal_private_args' defined but not used [-Wunused-const-variable=] 282 | static const struct iw_priv_args woal_private_args[] = { | ^~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +133 drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_pcie.h 688b67b2c7220b Fugang Duan 2020-04-19 121 688b67b2c7220b Fugang Duan 2020-04-19 122 /** Structure: PCIE service card */ 688b67b2c7220b Fugang Duan 2020-04-19 123 typedef struct _pcie_service_card { 688b67b2c7220b Fugang Duan 2020-04-19 124 /** pci_dev structure pointer */ 688b67b2c7220b Fugang Duan 2020-04-19 125 struct pci_dev *dev; 688b67b2c7220b Fugang Duan 2020-04-19 126 /** moal_handle structure pointer */ 688b67b2c7220b Fugang Duan 2020-04-19 127 moal_handle *handle; 688b67b2c7220b Fugang Duan 2020-04-19 128 /** I/O memory regions pointer to the bus */ 688b67b2c7220b Fugang Duan 2020-04-19 129 void __iomem *pci_mmap; 688b67b2c7220b Fugang Duan 2020-04-19 130 /** I/O memory regions pointer to the bus */ 688b67b2c7220b Fugang Duan 2020-04-19 131 void __iomem *pci_mmap1; 688b67b2c7220b Fugang Duan 2020-04-19 132 #if defined(PCIE) 688b67b2c7220b Fugang Duan 2020-04-19 @133 struct msix_entry msix_entries[PCIE_NUM_MSIX_VECTORS]; 688b67b2c7220b Fugang Duan 2020-04-19 134 msix_context msix_contexts[PCIE_NUM_MSIX_VECTORS]; 688b67b2c7220b Fugang Duan 2020-04-19 135 #endif 688b67b2c7220b Fugang Duan 2020-04-19 136 } pcie_service_card, *ppcie_service_card; 688b67b2c7220b Fugang Duan 2020-04-19 137 :::::: The code at line 133 was first introduced by commit :::::: 688b67b2c7220b01521ffe560da7eee33042c7bd MLK-23806-01 net: wireless: nxp: mxm_wifiex: add initial MxM wifi driver :::::: TO: Fugang Duan <fugang.duan(a)nxp.com&gt; :::::: CC: Fugang Duan <fugang.duan(a)nxp.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org