diff --git a/Makefile b/Makefile
index 1645390..10693ee 100644
--- a/Makefile
+++ b/Makefile
@@ -1,11 +1,6 @@
 EXTRA_CFLAGS += $(USER_EXTRA_CFLAGS)
 EXTRA_CFLAGS += -O1
 #EXTRA_CFLAGS += -O3
-#EXTRA_CFLAGS += -Wall
-#EXTRA_CFLAGS += -Wextra
-#EXTRA_CFLAGS += -Werror
-#EXTRA_CFLAGS += -pedantic
-#EXTRA_CFLAGS += -Wshadow -Wpointer-arith -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes
 
 EXTRA_CFLAGS += -Wno-unused-variable
 EXTRA_CFLAGS += -Wno-unused-value
@@ -13,7 +8,7 @@ EXTRA_CFLAGS += -Wno-unused-label
 EXTRA_CFLAGS += -Wno-unused-parameter
 EXTRA_CFLAGS += -Wno-unused-function
 EXTRA_CFLAGS += -Wno-unused
-#EXTRA_CFLAGS += -Wno-uninitialized
+EXTRA_CFLAGS += -Wno-vla -g
 EXTRA_CFLAGS += -Wno-implicit-fallthrough
 
 GCC_VER_49 := $(shell echo `$(CC) -dumpversion | cut -f1-2 -d.` \>= 4.9 | bc )
diff --git a/core/efuse/rtw_efuse.c b/core/efuse/rtw_efuse.c
index e266e2d..0843376 100644
--- a/core/efuse/rtw_efuse.c
+++ b/core/efuse/rtw_efuse.c
@@ -778,13 +778,14 @@ void rtw_efuse_analyze(PADAPTER	padapter, u8 Type, u8 Fake)
 	j = 0;
 
 	for (i = 0; i < mapLen; i++) {
-		if (i % 16 == 0)
+		if (i % 16 == 0) {
 			RTW_PRINT_SEL(RTW_DBGDUMP, "0x%03x: ", i);
 			_RTW_PRINT_SEL(RTW_DBGDUMP, "%02X%s"
 				, pEfuseHal->fakeEfuseInitMap[i]
 				, ((i + 1) % 16 == 0) ? "\n" : (((i + 1) % 8 == 0) ? "	  " : " ")
 			);
 		}
+	}
 	_RTW_PRINT_SEL(RTW_DBGDUMP, "\n");
 	if (eFuseWord)
 		rtw_mfree((u8 *)eFuseWord, EFUSE_MAX_SECTION_NUM * (EFUSE_MAX_WORD_UNIT * 2));
diff --git a/core/rtw_mlme.c b/core/rtw_mlme.c
index 9695ec4..2bfa50f 100644
--- a/core/rtw_mlme.c
+++ b/core/rtw_mlme.c
@@ -3119,10 +3119,11 @@ void rtw_drv_scan_by_self(_adapter *padapter, u8 reason)
 		#ifdef CONFIG_LAYER2_ROAMING
 		if (rtw_chk_roam_flags(padapter, RTW_ROAM_ACTIVE) && pmlmepriv->need_to_roam == _TRUE)
 			RTW_INFO(FUNC_ADPT_FMT" need to roam, don't care BusyTraffic\n", FUNC_ADPT_ARG(padapter));
-		else
+		else {
 		#endif
 			RTW_INFO(FUNC_ADPT_FMT" exit BusyTraffic\n", FUNC_ADPT_ARG(padapter));
 			goto exit;
+		}
 	}
 	else if (ssc_chk != SS_ALLOW)
 		goto exit;
diff --git a/core/rtw_rf.c b/core/rtw_rf.c
index 39ac68b..55556d0 100644
--- a/core/rtw_rf.c
+++ b/core/rtw_rf.c
@@ -1288,9 +1288,10 @@ void dump_txpwr_lmt(void *sel, _adapter *adapter)
 
 	RTW_PRINT_SEL(sel, "txpwr_lmt_2g_cck_ofdm_state:0x%02x\n", rfctl->txpwr_lmt_2g_cck_ofdm_state);
 	#ifdef CONFIG_IEEE80211_BAND_5GHZ
-	if (IS_HARDWARE_TYPE_JAGUAR_AND_JAGUAR2(adapter))
+	if (IS_HARDWARE_TYPE_JAGUAR_AND_JAGUAR2(adapter)) {
 		RTW_PRINT_SEL(sel, "txpwr_lmt_5g_cck_ofdm_state:0x%02x\n", rfctl->txpwr_lmt_5g_cck_ofdm_state);
 		RTW_PRINT_SEL(sel, "txpwr_lmt_5g_20_40_ref:0x%02x\n", rfctl->txpwr_lmt_5g_20_40_ref);
+	}
 	#endif
 	RTW_PRINT_SEL(sel, "\n");
 
diff --git a/os_dep/linux/ioctl_linux.c b/os_dep/linux/ioctl_linux.c
index 20dd583..a0d32ee 100644
--- a/os_dep/linux/ioctl_linux.c
+++ b/os_dep/linux/ioctl_linux.c
@@ -9778,7 +9778,11 @@ static int rtw_mp_efuse_set(struct net_device *dev,
 		rtw_hal_read_chip_info(padapter);
 		/* set mac addr*/
 		rtw_macaddr_cfg(adapter_mac_addr(padapter), get_hal_mac_addr(padapter));
+#if LINUX_VERSION_CODE < KERNEL_VERSION(5, 17, 0)
 		_rtw_memcpy(padapter->pnetdev->dev_addr, get_hal_mac_addr(padapter), ETH_ALEN); /* set mac addr to net_device */
+#else
+		dev_addr_set(padapter->pnetdev, get_hal_mac_addr(padapter)); /* set mac addr to net_device */
+#endif
 
 #ifdef CONFIG_P2P
 		rtw_init_wifidirect_addrs(padapter, adapter_mac_addr(padapter), adapter_mac_addr(padapter));
diff --git a/os_dep/osdep_service.c b/os_dep/osdep_service.c
index d4a01c8..6a2d3ac 100644
--- a/os_dep/osdep_service.c
+++ b/os_dep/osdep_service.c
@@ -2491,7 +2491,11 @@ int rtw_change_ifname(_adapter *padapter, const char *ifname)
 
 	rtw_init_netdev_name(pnetdev, ifname);
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(5, 17, 0)
 	_rtw_memcpy(pnetdev->dev_addr, adapter_mac_addr(padapter), ETH_ALEN);
+#else
+	dev_addr_set(pnetdev, adapter_mac_addr(padapter));
+#endif
 
 	if (rtnl_lock_needed)
 		ret = register_netdev(pnetdev);