qcacld-3.0: Fix implicit-fallthrough compile error casued by gcc 9.3

Compiling with gcc 9.3 will cause many implicit-fallthrough
compile errors.

Fix is to add keyword fallthrough to resolve such compile error.

Change-Id: I3fdc48b1a9ab2345a47ae644e3217b4d29238364
CRs-Fixed: 2785172

components/p2p/core/src/wlan_p2p_main.c

@@ -1392,9 +1392,10 @@ QDF_STATUS p2p_status_connect(struct wlan_objmgr_vdev *vdev)
 	case P2P_CLIENT_DISCONNECTED_STATE:
 		p2p_debug("No scan before 4-way handshake");
 		/*
-		 * Fall thru since no scan before 4-way handshake and
+		 * since no scan before 4-way handshake and
 		 * won't enter state P2P_CLIENT_CONNECTING_STATE_2:
 		 */
+		/* fallthrough */
 	case P2P_CLIENT_CONNECTING_STATE_2:
 		p2p_soc_obj->connection_status =
 				P2P_CLIENT_COMPLETED_STATE;

components/pmo/core/src/wlan_pmo_suspend_resume.c

@@ -758,7 +758,8 @@ pmo_core_enable_wow_in_fw(struct wlan_objmgr_psoc *psoc,
 	default:
 		pmo_err("Invalid interface pause setting: %d",
 			 wow_params->interface_pause);
-		/* intentional fall-through to default */
+		/* intentional to default */
+		/* fallthrough */
 	case PMO_WOW_INTERFACE_PAUSE_DEFAULT:
 		param.can_suspend_link =
 			htc_can_suspend_link(

components/tdls/core/src/wlan_tdls_main.c

@@ -606,7 +606,8 @@ QDF_STATUS tdls_process_cmd(struct scheduler_msg *msg)
 		break;
 	case TDLS_CMD_SESSION_DECREMENT:
 		tdls_process_decrement_active_session(msg->bodyptr);
-	/*Fall through to take decision on connection tracker.*/
+		/* take decision on connection tracker */
+		/* fallthrough */
 	case TDLS_CMD_SESSION_INCREMENT:
 		tdls_process_policy_mgr_notification(msg->bodyptr);
 		break;

core/hdd/src/wlan_hdd_assoc.c

@@ -4463,6 +4463,7 @@ hdd_sme_roam_callback(void *context, struct csr_roam_info *roam_info,
 					WLAN_CONTROL_PATH);
 			break;
 		}
+		/* fallthrough */
 	case eCSR_ROAM_DISASSOCIATED:
 	{
 		hdd_debug("****eCSR_ROAM_DISASSOCIATED****");

core/hdd/src/wlan_hdd_main.c

@@ -3841,7 +3841,7 @@ int hdd_wlan_start_modules(struct hdd_context *hdd_ctx, bool reinit)
 	case DRIVER_MODULES_UNINITIALIZED:
 		hdd_nofl_debug("Wlan transitioning (UNINITIALIZED -> CLOSED)");
 		unint = true;
-		/* Fall through dont add break here */
+		/* fallthrough */
 	case DRIVER_MODULES_CLOSED:
 		hdd_nofl_debug("Wlan transitioning (CLOSED -> ENABLED)");
 

core/hdd/src/wlan_hdd_softap_tx_rx.c

@@ -477,6 +477,7 @@ int hdd_softap_inspect_dhcp_packet(struct hdd_adapter *adapter,
 						hdd_sta_info->sta_mac.bytes,
 						WMA_DHCP_START_IND);
 			hdd_sta_info->dhcp_nego_status = DHCP_NEGO_IN_PROGRESS;
+			/* fallthrough */
 		case QDF_PROTO_DHCP_DECLINE:
 			if (dir == QDF_RX)
 				hdd_sta_info->dhcp_phase = DHCP_PHASE_REQUEST;

core/hdd/src/wlan_hdd_wmm.c

@@ -1467,8 +1467,8 @@ static void __hdd_wmm_do_implicit_qos(struct hdd_wmm_qos_context *qos_context)
 		 * record
 		 */
 		hdd_wmm_free_context(qos_context);
-
-		/* fall through and start packets flowing */
+		/* start packets flowing */
+		/* fallthrough */
 	case SME_QOS_STATUS_SETUP_SUCCESS_NO_ACM_NO_APSD_RSP:
 		/* no ACM in effect, no need to setup U-APSD */
 	case SME_QOS_STATUS_SETUP_SUCCESS_APSD_SET_ALREADY:

core/mac/src/pe/lim/lim_ft.c

@@ -433,6 +433,7 @@ static uint8_t lim_calculate_dot11_mode(struct mac_context *mac_ctx,
 			return MLME_DOT11_MODE_11AC;
 		else if (bcn->HTCaps.present)
 			return MLME_DOT11_MODE_11N;
+		/* fallthrough */
 	case MLME_DOT11_MODE_11AC:
 	case MLME_DOT11_MODE_11AC_ONLY:
 		if ((bcn->VHTCaps.present ||
@@ -443,10 +444,12 @@ static uint8_t lim_calculate_dot11_mode(struct mac_context *mac_ctx,
 			return MLME_DOT11_MODE_11AC;
 		else if (bcn->HTCaps.present)
 			return MLME_DOT11_MODE_11N;
+		/* fallthrough */
 	case MLME_DOT11_MODE_11N:
 	case MLME_DOT11_MODE_11N_ONLY:
 		if (bcn->HTCaps.present)
 			return MLME_DOT11_MODE_11N;
+		/* fallthrough */
 	default:
 			return new_dot11_mode;
 	}

core/mac/src/pe/lim/lim_process_action_frame.c

@@ -1742,6 +1742,7 @@ void lim_process_action_frame(struct mac_context *mac_ctx,
 				pe_debug("p2p session active drop BTM frame");
 				break;
 			}
+			/* fallthrough */
 		case WNM_NOTIF_REQUEST:
 		case WNM_NOTIF_RESPONSE:
 			rssi = WMA_GET_RX_RSSI_NORMALIZED(rx_pkt_info);
@@ -1884,7 +1885,8 @@ void lim_process_action_frame(struct mac_context *mac_ctx,
 					pub_action->Oui[2], pub_action->Oui[3]);
 				break;
 			}
-			/* Fall through to send the frame to supplicant */
+			/* send the frame to supplicant */
+			/* fallthrough */
 		case SIR_MAC_ACTION_VENDOR_SPECIFIC_CATEGORY:
 		case SIR_MAC_ACTION_2040_BSS_COEXISTENCE:
 		case SIR_MAC_ACTION_GAS_INITIAL_REQUEST:
@@ -2080,7 +2082,7 @@ void lim_process_action_frame_no_session(struct mac_context *mac, uint8_t *pBd)
 					vendor_specific->Oui[3]);
 				break;
 			}
-			/* Fall through to send the frame to supplicant */
+			/* fallthrough */
 		case SIR_MAC_ACTION_GAS_INITIAL_REQUEST:
 		case SIR_MAC_ACTION_GAS_INITIAL_RESPONSE:
 		case SIR_MAC_ACTION_GAS_COMEBACK_REQUEST:

core/sap/src/sap_module.c

@@ -2122,7 +2122,7 @@ wlansap_reset_sap_config_add_ie(struct sap_config *config,
 		}
 		if (eUPDATE_IE_ALL != updateType)
 			break;
-
+		/* fallthrough */
 	case eUPDATE_IE_ASSOC_RESP:
 		if (config->pAssocRespIEsBuffer) {
 			qdf_mem_free(config->pAssocRespIEsBuffer);
@@ -2131,7 +2131,7 @@ wlansap_reset_sap_config_add_ie(struct sap_config *config,
 		}
 		if (eUPDATE_IE_ALL != updateType)
 			break;
-
+		/* fallthrough */
 	case eUPDATE_IE_PROBE_BCN:
 		if (config->pProbeRespBcnIEsBuffer) {
 			qdf_mem_free(config->pProbeRespBcnIEsBuffer);
@@ -2140,7 +2140,7 @@ wlansap_reset_sap_config_add_ie(struct sap_config *config,
 		}
 		if (eUPDATE_IE_ALL != updateType)
 			break;
-
+		/* fallthrough */
 	default:
 		if (eUPDATE_IE_ALL != updateType)
 			sap_err("Invalid buffer type %d", updateType);

core/sme/src/common/sme_ft_api.c

@@ -249,6 +249,7 @@ QDF_STATUS sme_check_ft_status(mac_handle_t mac_handle, uint32_t session_id)
 			sme_release_global_lock(&mac->sme);
 			return QDF_STATUS_SUCCESS;
 		}
+		/* fallthrough */
 	default:
 		sme_debug("Unhandled state:%d", session->ftSmeContext.FTState);
 		status = QDF_STATUS_E_FAILURE;

core/sme/src/csr/csr_api_roam.c

@@ -6204,8 +6204,8 @@ QDF_STATUS csr_roam_process_command(struct mac_context *mac, tSmeCmd *pCommand)
 			status = QDF_STATUS_E_FAILURE;
 			break;
 		}
-		/* Fall through for success case */
-
+		/* for success case */
+		/* fallthrough */
 	default:
 		csr_roam_state_change(mac, eCSR_ROAMING_STATE_JOINING,
 				sessionId);
@@ -19207,6 +19207,7 @@ csr_roam_switch_to_roam_start(struct mac_context *mac, uint8_t vdev_id,
 					    WLAN_ROAMING_IN_PROG);
 			break;
 		}
+		/* fallthrough */
 	case WLAN_ROAM_INIT:
 	case WLAN_ROAM_DEINIT:
 	case WLAN_ROAM_SYNCH_IN_PROG:
@@ -19256,8 +19257,9 @@ csr_roam_switch_to_roam_sync(struct mac_context *mac, uint8_t vdev_id,
 
 		/*
 		 * transition to WLAN_ROAM_SYNCH_IN_PROG not allowed otherwise
-		 * if we're already RSO stopped, fall through to return failure
+		 * if we're already RSO stopped, return failure
 		 */
+		/* fallthrough */
 	case WLAN_ROAM_INIT:
 	case WLAN_ROAM_DEINIT:
 	case WLAN_ROAM_SYNCH_IN_PROG:

core/sme/src/csr/csr_neighbor_roam.c

@@ -735,6 +735,7 @@ QDF_STATUS csr_neighbor_roam_indicate_disconnect(struct mac_context *mac,
 		/* Stop pre-auth to reassoc interval timer */
 		qdf_mc_timer_stop(&pSession->ftSmeContext.
 				preAuthReassocIntvlTimer);
+		/* fallthrough */
 	case eCSR_NEIGHBOR_ROAM_STATE_PREAUTHENTICATING:
 		csr_neighbor_roam_state_transition(mac,
 				eCSR_NEIGHBOR_ROAM_STATE_INIT, sessionId);
@@ -970,7 +971,8 @@ QDF_STATUS csr_neighbor_roam_indicate_connect(
 			ngbr_roam_info->uOsRequestedHandoff = 0;
 			break;
 		}
-	/* Fall through if the status is SUCCESS */
+		/* if the status is SUCCESS */
+		/* fallthrough */
 	case eCSR_NEIGHBOR_ROAM_STATE_INIT:
 		/* Reset all the data structures here */
 		csr_neighbor_roam_reset_init_state_control_info(mac,

core/sme/src/qos/sme_qos.c

@@ -4800,7 +4800,7 @@ static QDF_STATUS sme_qos_process_handoff_assoc_req_ev(struct mac_context *mac,
 					  __func__, __LINE__);
 				break;
 			}
-
+			/* fallthrough */
 		case SME_QOS_CLOSED:
 		case SME_QOS_INIT:
 		default:
@@ -6796,8 +6796,9 @@ static QDF_STATUS sme_qos_add_ts_failure_fnp(struct mac_context *mac, tListElem
 		break;
 	case SME_QOS_REASON_MODIFY:
 		flow_info->reason = SME_QOS_REASON_REQ_SUCCESS;
+		/* fallthrough */
 	case SME_QOS_REASON_REQ_SUCCESS:
-	/* fallthrough */
+		/* fallthrough */
 	default:
 		inform_hdd = false;
 		break;

core/wma/src/wma_main.c

@@ -800,7 +800,7 @@ static int32_t wma_set_priv_cfg(tp_wma_handle wma_handle,
 						     adapter_1_quota,
 						     adapter_2_chan_number);
 	}
-
+		break;
 	default:
 		wma_err("Invalid wma config command id:%d", privcmd->param_id);
 		ret = -EINVAL;