diff --git a/Makefile b/Makefile
index 704d890..5e1756a 100644
--- a/Makefile
+++ b/Makefile
@@ -6,8 +6,11 @@ MODDEFS := CONFIG_DVB_CORE=m CONFIG_DVB_DDBRIDGE=m CONFIG_DVB_DRXK=m CONFIG_DVB_
 
 KBUILD_EXTMOD = $(PWD)
 
-DDDVB_INC = "-I$(KBUILD_EXTMOD)/include -I$(KBUILD_EXTMOD)/include/linux -I$(KBUILD_EXTMOD)/frontends"
-
+ifeq ($(KERNEL_DVB_CORE),y)
+DDDVB_INC = "--include=$(KBUILD_EXTMOD)/include/dd_compat.h -I$(KBUILD_EXTMOD)/frontends -I$(KBUILD_EXTMOD) -DKERNEL_DVB_CORE=y"
+else
+DDDVB_INC = "--include=$(KBUILD_EXTMOD)/include/dd_compat.h -I$(KBUILD_EXTMOD)/frontends -I$(KBUILD_EXTMOD)/include -I$(KBUILD_EXTMOD)/include/linux"
+endif
 
 all: 
 	$(MAKE) -C $(KDIR) KBUILD_EXTMOD=$(PWD) $(MODDEFS) modules NOSTDINC_FLAGS=$(DDDVB_INC)
diff --git a/ddbridge/Makefile.kernel b/ddbridge/Makefile.kernel
index 7a40c24..a2b64d9 100644
--- a/ddbridge/Makefile.kernel
+++ b/ddbridge/Makefile.kernel
@@ -11,4 +11,5 @@ obj-$(CONFIG_DVB_OCTONET) += octonet.o
 ccflags-y += -Idrivers/media/dvb-core/
 ccflags-y += -Idrivers/media/dvb-frontends/
 ccflags-y += -Idrivers/media/tuners/
+ccflags-y += --include=dd_compat.h
 
diff --git a/ddbridge/ddbridge-core.c b/ddbridge/ddbridge-core.c
index 634bacf..7cb5856 100644
--- a/ddbridge/ddbridge-core.c
+++ b/ddbridge/ddbridge-core.c
@@ -336,7 +336,7 @@ static int ddb_buffers_alloc(struct ddb *dev)
 				if (dma_alloc(dev->pdev,
 					      port->input[0]->dma, 0) < 0)
 					return -1;
-			/* fallthrough */
+			fallthrough;
 		case DDB_PORT_MOD:
 			if (port->output->dma)
 				if (dma_alloc(dev->pdev,
@@ -1451,35 +1451,35 @@ static void dvb_input_detach(struct ddb_input *input)
 	case 0x41:
 		if (dvb->fe2)
 			dvb_unregister_frontend(dvb->fe2);
-		/* fallthrough */
+		fallthrough;
 	case 0x40:
 		if (dvb->fe)
 			dvb_unregister_frontend(dvb->fe);
-		/* fallthrough */
+		fallthrough;
 	case 0x30:
 		dvb_frontend_detach(dvb->fe);
 		dvb->fe = NULL;
 		dvb->fe2 = NULL;
-		/* fallthrough */
+		fallthrough;
 	case 0x21:
 		if (input->port->dev->ns_num)
 			dvb_netstream_release(&dvb->dvbns);
-		/* fallthrough */
+		fallthrough;
 	case 0x20:
 		dvb_net_release(&dvb->dvbnet);
-		/* fallthrough */
+		fallthrough;
 	case 0x12:
 		dvbdemux->dmx.remove_frontend(&dvbdemux->dmx,
 					      &dvb->hw_frontend);
 		dvbdemux->dmx.remove_frontend(&dvbdemux->dmx,
 					      &dvb->mem_frontend);
-		/* fallthrough */
+		fallthrough;
 	case 0x11:
 		dvb_dmxdev_release(&dvb->dmxdev);
-		/* fallthrough */
+		fallthrough;
 	case 0x10:
 		dvb_dmx_release(&dvb->demux);
-		/* fallthrough */
+		fallthrough;
 	case 0x01:
 		break;
 	}
@@ -1720,7 +1720,7 @@ static int dvb_input_attach(struct ddb_input *input)
 			osc24 = 0;
 		else
 			osc24 = 1;
-		/* fallthrough */
+		fallthrough;
 	case DDB_TUNER_DVBCT2_SONY_P:
 	case DDB_TUNER_DVBC2T2_SONY_P:
 	case DDB_TUNER_ISDBT_SONY_P:
@@ -1737,7 +1737,7 @@ static int dvb_input_attach(struct ddb_input *input)
 		break;
 	case DDB_TUNER_DVBC2T2I_SONY:
 		osc24 = 1;
-		/* fallthrough */
+		fallthrough;
 	case DDB_TUNER_DVBCT2_SONY:
 	case DDB_TUNER_DVBC2T2_SONY:
 	case DDB_TUNER_ISDBT_SONY:
@@ -2184,7 +2184,7 @@ static int ddb_port_attach(struct ddb_port *port)
 		ret = ddb_ci_attach(port, ci_bitrate);
 		if (ret < 0)
 			break;
-		/* fallthrough */
+		fallthrough;
 	case DDB_PORT_LOOP:
 		ret = dvb_register_device(port->dvb[0].adap,
 					  &port->dvb[0].dev,
@@ -2640,7 +2640,8 @@ static void ddb_ports_init(struct ddb *dev)
 					ddb_input_init(port, 4 + i, 1, 4 + i);
 					ddb_output_init(port, i);
 					break;
-				} /* fallthrough */
+				}
+				fallthrough;
 			case DDB_OCTONET:
 			case DDB_OCTOPUS:
 			case DDB_OCTOPRO:
@@ -4455,7 +4456,7 @@ int ddb_exit_ddbridge(int stage, int error)
 	default:
 	case 2:
 		destroy_workqueue(ddb_wq);
-		/* fallthrough */
+		fallthrough;
 	case 1:
 		ddb_class_destroy();
 	}
diff --git a/dvb-core/Makefile.kernel b/dvb-core/Makefile.kernel
index 51d161a..0814bc9 100644
--- a/dvb-core/Makefile.kernel
+++ b/dvb-core/Makefile.kernel
@@ -11,3 +11,4 @@ dvb-core-objs := dvbdev.o dmxdev.o dvb_demux.o dvb_filter.o 	\
 obj-$(CONFIG_DVB_CORE) += dvb-core.o
 
 ccflags-y += -Idrivers/media/dvb-core/
+ccflags-y += --include=dd_compat.h
diff --git a/dvb-core/dvb_net.c b/dvb-core/dvb_net.c
index 7949a58..386330b 100644
--- a/dvb-core/dvb_net.c
+++ b/dvb-core/dvb_net.c
@@ -553,7 +553,7 @@ static int dvb_net_ule_new_payload(struct dvb_net_ule_handle *h)
 		h->priv->ule_sndu_type_1 = 1;
 		h->ts_remain -= 1;
 		h->from_where += 1;
-		/* fallthrough */
+		fallthrough;
 	case 0:
 		h->new_ts = 1;
 		h->ts += TS_SZ;
diff --git a/frontends/Makefile.kernel b/frontends/Makefile.kernel
index 860129b..7757ac9 100644
--- a/frontends/Makefile.kernel
+++ b/frontends/Makefile.kernel
@@ -4,6 +4,7 @@
 
 ccflags-y += -I$(srctree)/drivers/media/dvb-core/
 ccflags-y += -I$(srctree)/drivers/media/tuners/
+ccflags-y += --include=dd_compat.h
 
 # FIXME: RTL2832 SDR driver uses power management directly from USB IF driver
 ifdef CONFIG_DVB_RTL2832_SDR
diff --git a/frontends/drxk_hard.c b/frontends/drxk_hard.c
index 456e382..a6553d4 100644
--- a/frontends/drxk_hard.c
+++ b/frontends/drxk_hard.c
@@ -1566,7 +1566,7 @@ static int SetOperationMode(struct drxk_state *state, enum OperationMode oMode)
 			case OM_QAM_ITU_B:
 				status = -1;
 				break;
-			case OM_QAM_ITU_A: /* fallthrough */
+			case OM_QAM_ITU_A: 
 			case OM_QAM_ITU_C:
 				CHK_ERROR(MPEGTSStop(state));
 				CHK_ERROR(PowerDownQAM(state));
@@ -1589,7 +1589,7 @@ static int SetOperationMode(struct drxk_state *state, enum OperationMode oMode)
 			case OM_QAM_ITU_B:
 				status = -1;
 				break;
-			case OM_QAM_ITU_A:        /* fallthrough */
+			case OM_QAM_ITU_A:
 			case OM_QAM_ITU_C:
 				state->m_OperationMode = oMode;
 				CHK_ERROR(SetQAMStandard(state,oMode));
@@ -1765,7 +1765,7 @@ static int MPEGTSDtoSetup(struct drxk_state *state, enum OperationMode oMode)
 			fecOcRcnCtlRate = 0xC00000;
 			staticCLK = state->m_DVBTStaticCLK;
 			break;
-		case OM_QAM_ITU_A: /* fallthrough */
+		case OM_QAM_ITU_A:
 		case OM_QAM_ITU_C:
 			fecOcTmdMode = 0x0004;
 			fecOcRcnCtlRate = 0xD2B4EE; /* good for >63 Mb/s */
@@ -2804,12 +2804,12 @@ static int DVBTScCommand(struct drxk_state *state,
 	case OFDM_SC_RA_RAM_CMD_PROGRAM_PARAM:
 		status = Write16_0(state, OFDM_SC_RA_RAM_PARAM1__A, param1);
 		/* All commands using 1 parameters */
-		/* fall through */
+		fallthrough;
 	case OFDM_SC_RA_RAM_CMD_SET_ECHO_TIMING:
 	case OFDM_SC_RA_RAM_CMD_USER_IO:
 		status = Write16_0(state, OFDM_SC_RA_RAM_PARAM0__A, param0);
 		/* All commands using 0 parameters */
-		/* fall through */
+		fallthrough;
 	case OFDM_SC_RA_RAM_CMD_GET_OP_PARAM:
 	case OFDM_SC_RA_RAM_CMD_NULL:
 		/* Write command */
@@ -3218,7 +3218,7 @@ static int SetDVBT (struct drxk_state *state,u16 IntermediateFreqkHz, s32 tunerF
 		default:
 			operationMode |= OFDM_SC_RA_RAM_OP_AUTO_MODE__M;
 			/* try first guess DRX_FFTMODE_8K */
-			/* fall through */
+			fallthrough;
 		case TRANSMISSION_MODE_8K:
 			transmissionParams |= OFDM_SC_RA_RAM_OP_PARAM_MODE_8K;
 			break;
@@ -3237,7 +3237,7 @@ static int SetDVBT (struct drxk_state *state,u16 IntermediateFreqkHz, s32 tunerF
 		case GUARD_INTERVAL_AUTO:
 			operationMode |= OFDM_SC_RA_RAM_OP_AUTO_GUARD__M;
 			/* try first guess DRX_GUARD_1DIV4 */
-			/* fall through */
+			fallthrough;
 		case GUARD_INTERVAL_1_4:
 			transmissionParams |= OFDM_SC_RA_RAM_OP_PARAM_GUARD_4;
 			break;
@@ -3265,7 +3265,7 @@ static int SetDVBT (struct drxk_state *state,u16 IntermediateFreqkHz, s32 tunerF
 			/* try first guess SC_RA_RAM_OP_PARAM_HIER_NO */
 			//	transmissionParams |= OFDM_SC_RA_RAM_OP_PARAM_HIER_NO;
 			//break;
-			/* fall through */
+			fallthrough;
 		case 	HIERARCHY_1:
 			transmissionParams |= OFDM_SC_RA_RAM_OP_PARAM_HIER_A1;
 			break;
@@ -3288,7 +3288,7 @@ static int SetDVBT (struct drxk_state *state,u16 IntermediateFreqkHz, s32 tunerF
 		default:
 			operationMode |= OFDM_SC_RA_RAM_OP_AUTO_CONST__M;
 			/* try first guess DRX_CONSTELLATION_QAM64 */
-			/* fall through */
+			fallthrough;
 		case QAM_64:
 			transmissionParams |= OFDM_SC_RA_RAM_OP_PARAM_CONST_QAM64;
 			break;
@@ -3311,8 +3311,8 @@ static int SetDVBT (struct drxk_state *state,u16 IntermediateFreqkHz, s32 tunerF
 	     transmissionParams |= OFDM_SC_RA_RAM_OP_PARAM_PRIO_HI;
 	     WR16(devAddr, OFDM_EC_SB_PRIOR__A,   OFDM_EC_SB_PRIOR_HI));
 	     break;
-	  case DRX_PRIORITY_UNKNOWN : /* fall through */
-	  default:
+	  case DRX_PRIORITY_UNKNOWN:
+		default:
 	     return (DRX_STS_INVALID_ARG);
 	     break;
        }
@@ -3332,7 +3332,7 @@ static int SetDVBT (struct drxk_state *state,u16 IntermediateFreqkHz, s32 tunerF
 		default:
 			operationMode |= OFDM_SC_RA_RAM_OP_AUTO_RATE__M;
 			/* try first guess DRX_CODERATE_2DIV3 */
-			/* fall through */
+			fallthrough;
 		case FEC_2_3  :
 			transmissionParams |= OFDM_SC_RA_RAM_OP_PARAM_RATE_2_3;
 			break;
diff --git a/frontends/mxl5xx.c b/frontends/mxl5xx.c
index 6f7308b..ab40793 100644
--- a/frontends/mxl5xx.c
+++ b/frontends/mxl5xx.c
@@ -786,7 +786,7 @@ static int get_frontend(struct dvb_frontend *fe, struct dtv_frontend_properties
 		default:
 			break;
 		}
-		/* fallthrough */
+		fallthrough;
 	case SYS_DVBS:
 		switch ((MXL_HYDRA_MODULATION_E)
 			regData[DMD_MODULATION_SCHEME_ADDR]) {