V4L/DVB (4387): Add Kconfig infrastructure for dvb_attach

Allow it to be en/disabled
Disable it in < 2.6.17 due to symbol_xxx() bug

Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net>
Acked-by: Michael Krufky <mkrufky@linuxtv.org>
Acked-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

30 files changed, 281 insertions, 12 deletions

diff --git a/drivers/media/dvb/bt8xx/dst.c b/drivers/media/dvb/bt8xx/dst.c
index 91dea91..a853c14 100644
--- a/drivers/media/dvb/bt8xx/dst.c
+++ b/drivers/media/dvb/bt8xx/dst.c
@@ -1716,8 +1716,10 @@ static void dst_release(struct dvb_frontend *fe)
 {
 	struct dst_state *state = fe->demodulator_priv;
 
+#ifdef CONFIG_DVB_CORE_ATTACH
 	if (state->dst_hw_cap & DST_TYPE_HAS_CA)
 		symbol_put(dst_ca_attach);
+#endif
 
 	kfree(state);
 }
diff --git a/drivers/media/dvb/dvb-core/Kconfig b/drivers/media/dvb/dvb-core/Kconfig
index 12ee912..7853880 100644
--- a/drivers/media/dvb/dvb-core/Kconfig
+++ b/drivers/media/dvb/dvb-core/Kconfig
@@ -9,3 +9,14 @@ config DVB_CORE
 	  in-kernel drivers will select this automatically if needed.
 	  If unsure say N.
 
+config DVB_CORE_ATTACH
+	bool "Load and attach frontend modules as needed"
+	depends on DVB_CORE
+	depends on MODULES
+	help
+	  Remove the static dependency of DVB card drivers on all
+	  frontend modules for all possible card variants. Instead,
+	  allow the card drivers to only load the frontend modules
+	  they require. This saves several KBytes of memory.
+
+	  If unsure say Y.
diff --git a/drivers/media/dvb/dvb-usb/Kconfig b/drivers/media/dvb/dvb-usb/Kconfig
index 75824b7..d9f13ad 100644
--- a/drivers/media/dvb/dvb-usb/Kconfig
+++ b/drivers/media/dvb/dvb-usb/Kconfig
@@ -86,10 +86,10 @@ config DVB_USB_UMT_010
 config DVB_USB_CXUSB
 	tristate "Conexant USB2.0 hybrid reference design support"
 	depends on DVB_USB
-	select DVB_CX22702
-	select DVB_LGDT330X
-	select DVB_MT352
-	select DVB_ZL10353
+	select DVB_CX22702 if !DVB_FE_CUSTOMISE
+	select DVB_LGDT330X if !DVB_FE_CUSTOMISE
+	select DVB_MT352 if !DVB_FE_CUSTOMISE
+	select DVB_ZL10353 if !DVB_FE_CUSTOMISE
 	help
 	  Say Y here to support the Conexant USB2.0 hybrid reference design.
 	  Currently, only DVB and ATSC modes are supported, analog mode
@@ -101,8 +101,8 @@ config DVB_USB_CXUSB
 config DVB_USB_DIGITV
 	tristate "Nebula Electronics uDigiTV DVB-T USB2.0 support"
 	depends on DVB_USB
-	select DVB_NXT6000
-	select DVB_MT352
+	select DVB_NXT6000 if !DVB_FE_CUSTOMISE
+	select DVB_MT352 if !DVB_FE_CUSTOMISE
 	help
 	  Say Y here to support the Nebula Electronics uDigitV USB2.0 DVB-T receiver.
 
diff --git a/drivers/media/dvb/frontends/bcm3510.h b/drivers/media/dvb/frontends/bcm3510.h
index 80f5d09..6dfa839 100644
--- a/drivers/media/dvb/frontends/bcm3510.h
+++ b/drivers/media/dvb/frontends/bcm3510.h
@@ -34,7 +34,16 @@ struct bcm3510_config
 	int (*request_firmware)(struct dvb_frontend* fe, const struct firmware **fw, char* name);
 };
 
+#if defined(CONFIG_DVB_BCM3510) || defined(CONFIG_DVB_BCM3510_MODULE)
 extern struct dvb_frontend* bcm3510_attach(const struct bcm3510_config* config,
 					   struct i2c_adapter* i2c);
+#else
+static inline struct dvb_frontend* bcm3510_attach(const struct bcm3510_config* config,
+						  struct i2c_adapter* i2c)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
+	return NULL;
+}
+#endif // CONFIG_DVB_BCM3510
 
 #endif
diff --git a/drivers/media/dvb/frontends/cx22700.h b/drivers/media/dvb/frontends/cx22700.h
index dcd8979..10286cc 100644
--- a/drivers/media/dvb/frontends/cx22700.h
+++ b/drivers/media/dvb/frontends/cx22700.h
@@ -31,7 +31,16 @@ struct cx22700_config
 	u8 demod_address;
 };
 
+#if defined(CONFIG_DVB_CX22700) || defined(CONFIG_DVB_CX22700_MODULE)
 extern struct dvb_frontend* cx22700_attach(const struct cx22700_config* config,
 					   struct i2c_adapter* i2c);
+#else
+static inline struct dvb_frontend* cx22700_attach(const struct cx22700_config* config,
+					   struct i2c_adapter* i2c)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
+	return NULL;
+}
+#endif // CONFIG_DVB_CX22700
 
 #endif // CX22700_H
diff --git a/drivers/media/dvb/frontends/cx22702.h b/drivers/media/dvb/frontends/cx22702.h
index 7f2f241..bc217dd 100644
--- a/drivers/media/dvb/frontends/cx22702.h
+++ b/drivers/media/dvb/frontends/cx22702.h
@@ -41,7 +41,16 @@ struct cx22702_config
 	u8 output_mode;
 };
 
+#if defined(CONFIG_DVB_CX22702) || defined(CONFIG_DVB_CX22702_MODULE)
 extern struct dvb_frontend* cx22702_attach(const struct cx22702_config* config,
 					   struct i2c_adapter* i2c);
+#else
+static inline struct dvb_frontend* cx22702_attach(const struct cx22702_config* config,
+					   struct i2c_adapter* i2c)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
+	return NULL;
+}
+#endif // CONFIG_DVB_CX22702
 
 #endif // CX22702_H
diff --git a/drivers/media/dvb/frontends/cx24110.h b/drivers/media/dvb/frontends/cx24110.h
index 9c2b76e..c9d5ae2 100644
--- a/drivers/media/dvb/frontends/cx24110.h
+++ b/drivers/media/dvb/frontends/cx24110.h
@@ -33,9 +33,6 @@ struct cx24110_config
 	u8 demod_address;
 };
 
-extern struct dvb_frontend* cx24110_attach(const struct cx24110_config* config,
-					   struct i2c_adapter* i2c);
-
 static inline int cx24110_pll_write(struct dvb_frontend *fe, u32 val) {
 	int r = 0;
 	u8 buf[] = {(u8) (val>>24), (u8) (val>>16), (u8) (val>>8)};
@@ -44,4 +41,16 @@ static inline int cx24110_pll_write(struct dvb_frontend *fe, u32 val) {
 	return r;
 }
 
+#if defined(CONFIG_DVB_CX24110) || defined(CONFIG_DVB_CX24110_MODULE)
+extern struct dvb_frontend* cx24110_attach(const struct cx24110_config* config,
+					   struct i2c_adapter* i2c);
+#else
+static inline struct dvb_frontend* cx24110_attach(const struct cx24110_config* config,
+						  struct i2c_adapter* i2c)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
+	return NULL;
+}
+#endif // CONFIG_DVB_CX24110
+
 #endif // CX24110_H
diff --git a/drivers/media/dvb/frontends/cx24123.h b/drivers/media/dvb/frontends/cx24123.h
index 9606f82..6a8cb4c 100644
--- a/drivers/media/dvb/frontends/cx24123.h
+++ b/drivers/media/dvb/frontends/cx24123.h
@@ -32,7 +32,16 @@ struct cx24123_config
 	int (*set_ts_params)(struct dvb_frontend* fe, int is_punctured);
 };
 
+#if defined(CONFIG_DVB_CX24123) || defined(CONFIG_DVB_CX24123_MODULE)
 extern struct dvb_frontend* cx24123_attach(const struct cx24123_config* config,
 					   struct i2c_adapter* i2c);
+#else
+static inline struct dvb_frontend* cx24123_attach(const struct cx24123_config* config,
+						  struct i2c_adapter* i2c)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
+	return NULL;
+}
+#endif // CONFIG_DVB_CX24123
 
 #endif /* CX24123_H */
diff --git a/drivers/media/dvb/frontends/dib3000.h b/drivers/media/dvb/frontends/dib3000.h
index ec92762..d2ab747 100644
--- a/drivers/media/dvb/frontends/dib3000.h
+++ b/drivers/media/dvb/frontends/dib3000.h
@@ -41,9 +41,28 @@ struct dib_fe_xfer_ops
 	int (*tuner_pass_ctrl)(struct dvb_frontend *fe, int onoff, u8 pll_ctrl);
 };
 
+#if defined(CONFIG_DVB_DIB3000MB) || defined(CONFIG_DVB_DIB3000MB_MODULE)
 extern struct dvb_frontend* dib3000mb_attach(const struct dib3000_config* config,
 					     struct i2c_adapter* i2c, struct dib_fe_xfer_ops *xfer_ops);
+#else
+static inline struct dvb_frontend* dib3000mb_attach(const struct dib3000_config* config,
+					     struct i2c_adapter* i2c, struct dib_fe_xfer_ops *xfer_ops)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
+	return NULL;
+}
+#endif // CONFIG_DVB_DIB3000MB
 
+#if defined(CONFIG_DVB_DIB3000MC) || defined(CONFIG_DVB_DIB3000MC_MODULE)
 extern struct dvb_frontend* dib3000mc_attach(const struct dib3000_config* config,
 					     struct i2c_adapter* i2c, struct dib_fe_xfer_ops *xfer_ops);
+#else
+static inline struct dvb_frontend* dib3000mc_attach(const struct dib3000_config* config,
+					     struct i2c_adapter* i2c, struct dib_fe_xfer_ops *xfer_ops)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
+	return NULL;
+}
+#endif // CONFIG_DVB_DIB3000MC
+
 #endif // DIB3000_H
diff --git a/drivers/media/dvb/frontends/isl6421.h b/drivers/media/dvb/frontends/isl6421.h
index b5deacf..1916e3e 100644
--- a/drivers/media/dvb/frontends/isl6421.h
+++ b/drivers/media/dvb/frontends/isl6421.h
@@ -39,8 +39,17 @@
 #define ISL6421_ISEL1	0x20
 #define ISL6421_DCL	0x40
 
+#if defined(CONFIG_DVB_ISL6421) || defined(CONFIG_DVB_ISL6421_MODULE)
 /* override_set and override_clear control which system register bits (above) to always set & clear */
 extern struct dvb_frontend *isl6421_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, u8 i2c_addr,
 			  u8 override_set, u8 override_clear);
+#else
+static inline struct dvb_frontend *isl6421_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, u8 i2c_addr,
+						  u8 override_set, u8 override_clear)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
+	return NULL;
+}
+#endif // CONFIG_DVB_ISL6421
 
 #endif
diff --git a/drivers/media/dvb/frontends/l64781.h b/drivers/media/dvb/frontends/l64781.h
index 83b8bc2..21ba4a2 100644
--- a/drivers/media/dvb/frontends/l64781.h
+++ b/drivers/media/dvb/frontends/l64781.h
@@ -31,8 +31,16 @@ struct l64781_config
 	u8 demod_address;
 };
 
-
+#if defined(CONFIG_DVB_L64781) || defined(CONFIG_DVB_L64781_MODULE)
 extern struct dvb_frontend* l64781_attach(const struct l64781_config* config,
 					  struct i2c_adapter* i2c);
+#else
+static inline struct dvb_frontend* l64781_attach(const struct l64781_config* config,
+					  struct i2c_adapter* i2c)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
+	return NULL;
+}
+#endif // CONFIG_DVB_L64781
 
 #endif // L64781_H
diff --git a/drivers/media/dvb/frontends/lgdt330x.h b/drivers/media/dvb/frontends/lgdt330x.h
index bad903c..3f96b48 100644
--- a/drivers/media/dvb/frontends/lgdt330x.h
+++ b/drivers/media/dvb/frontends/lgdt330x.h
@@ -52,8 +52,17 @@ struct lgdt330x_config
 	int clock_polarity_flip;
 };
 
+#if defined(CONFIG_DVB_LGDT330X) || defined(CONFIG_DVB_LGDT330X_MODULE)
 extern struct dvb_frontend* lgdt330x_attach(const struct lgdt330x_config* config,
 					    struct i2c_adapter* i2c);
+#else
+static inline struct dvb_frontend* lgdt330x_attach(const struct lgdt330x_config* config,
+					    struct i2c_adapter* i2c)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
+	return NULL;
+}
+#endif // CONFIG_DVB_LGDT330X
 
 #endif /* LGDT330X_H */
 
diff --git a/drivers/media/dvb/frontends/lnbp21.h b/drivers/media/dvb/frontends/lnbp21.h
index 8c2df67..1fe1dd1 100644
--- a/drivers/media/dvb/frontends/lnbp21.h
+++ b/drivers/media/dvb/frontends/lnbp21.h
@@ -39,7 +39,15 @@
 
 #include <linux/dvb/frontend.h>
 
+#if defined(CONFIG_DVB_LNBP21) || defined(CONFIG_DVB_LNBP21_MODULE)
 /* override_set and override_clear control which system register bits (above) to always set & clear */
 extern struct dvb_frontend *lnbp21_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, u8 override_set, u8 override_clear);
+#else
+static inline struct dvb_frontend *lnbp21_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, u8 override_set, u8 override_clear)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
+	return NULL;
+}
+#endif // CONFIG_DVB_LNBP21
 
-#endif
+#endif // _LNBP21_H
diff --git a/drivers/media/dvb/frontends/mt312.h b/drivers/media/dvb/frontends/mt312.h
index 666a1bd..7112fb4 100644
--- a/drivers/media/dvb/frontends/mt312.h
+++ b/drivers/media/dvb/frontends/mt312.h
@@ -34,8 +34,16 @@ struct mt312_config
 	u8 demod_address;
 };
 
+#if defined(CONFIG_DVB_MT312) || defined(CONFIG_DVB_MT312_MODULE)
 struct dvb_frontend* vp310_mt312_attach(const struct mt312_config* config,
 					struct i2c_adapter* i2c);
-
+#else
+static inline struct dvb_frontend* vp310_mt312_attach(const struct mt312_config* config,
+					struct i2c_adapter* i2c)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
+	return NULL;
+}
+#endif // CONFIG_DVB_MT312
 
 #endif // MT312_H
diff --git a/drivers/media/dvb/frontends/mt352.h b/drivers/media/dvb/frontends/mt352.h
index 0de2057..0035c2e 100644
--- a/drivers/media/dvb/frontends/mt352.h
+++ b/drivers/media/dvb/frontends/mt352.h
@@ -51,8 +51,17 @@ struct mt352_config
 	int (*demod_init)(struct dvb_frontend* fe);
 };
 
+#if defined(CONFIG_DVB_MT352) || defined(CONFIG_DVB_MT352_MODULE)
 extern struct dvb_frontend* mt352_attach(const struct mt352_config* config,
 					 struct i2c_adapter* i2c);
+#else
+static inline struct dvb_frontend* mt352_attach(const struct mt352_config* config,
+					 struct i2c_adapter* i2c)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
+	return NULL;
+}
+#endif // CONFIG_DVB_MT352
 
 static inline int mt352_write(struct dvb_frontend *fe, u8 *buf, int len) {
 	int r = 0;
diff --git a/drivers/media/dvb/frontends/nxt200x.h b/drivers/media/dvb/frontends/nxt200x.h
index 34d6173..2eb220e 100644
--- a/drivers/media/dvb/frontends/nxt200x.h
+++ b/drivers/media/dvb/frontends/nxt200x.h
@@ -45,8 +45,17 @@ struct nxt200x_config
 	int (*set_ts_params)(struct dvb_frontend* fe, int is_punctured);
 };
 
+#if defined(CONFIG_DVB_NXT200X) || defined(CONFIG_DVB_NXT200X_MODULE)
 extern struct dvb_frontend* nxt200x_attach(const struct nxt200x_config* config,
 					   struct i2c_adapter* i2c);
+#else
+static inline struct dvb_frontend* nxt200x_attach(const struct nxt200x_config* config,
+					   struct i2c_adapter* i2c)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
+	return NULL;
+}
+#endif // CONFIG_DVB_NXT200X
 
 #endif /* NXT200X_H */
 
diff --git a/drivers/media/dvb/frontends/nxt6000.h b/drivers/media/dvb/frontends/nxt6000.h
index 117031d..9397393 100644
--- a/drivers/media/dvb/frontends/nxt6000.h
+++ b/drivers/media/dvb/frontends/nxt6000.h
@@ -33,7 +33,16 @@ struct nxt6000_config
 	u8 clock_inversion:1;
 };
 
+#if defined(CONFIG_DVB_NXT6000) || defined(CONFIG_DVB_NXT6000_MODULE)
 extern struct dvb_frontend* nxt6000_attach(const struct nxt6000_config* config,
 					   struct i2c_adapter* i2c);
+#else
+static inline struct dvb_frontend* nxt6000_attach(const struct nxt6000_config* config,
+					   struct i2c_adapter* i2c)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
+	return NULL;
+}
+#endif // CONFIG_DVB_NXT6000
 
 #endif // NXT6000_H
diff --git a/drivers/media/dvb/frontends/or51132.h b/drivers/media/dvb/frontends/or51132.h
index 8965888..9718be4 100644
--- a/drivers/media/dvb/frontends/or51132.h
+++ b/drivers/media/dvb/frontends/or51132.h
@@ -34,8 +34,17 @@ struct or51132_config
 	int (*set_ts_params)(struct dvb_frontend* fe, int is_punctured);
 };
 
+#if defined(CONFIG_DVB_OR51132) || defined(CONFIG_DVB_OR51132_MODULE)
 extern struct dvb_frontend* or51132_attach(const struct or51132_config* config,
 					   struct i2c_adapter* i2c);
+#else
+static inline struct dvb_frontend* or51132_attach(const struct or51132_config* config,
+					   struct i2c_adapter* i2c)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
+	return NULL;
+}
+#endif // CONFIG_DVB_OR51132
 
 #endif // OR51132_H
 
diff --git a/drivers/media/dvb/frontends/or51211.h b/drivers/media/dvb/frontends/or51211.h
index 13a5a3a..10a5419 100644
--- a/drivers/media/dvb/frontends/or51211.h
+++ b/drivers/media/dvb/frontends/or51211.h
@@ -37,8 +37,17 @@ struct or51211_config
 	void (*sleep)(struct dvb_frontend * fe);
 };
 
+#if defined(CONFIG_DVB_OR51211) || defined(CONFIG_DVB_OR51211_MODULE)
 extern struct dvb_frontend* or51211_attach(const struct or51211_config* config,
 					   struct i2c_adapter* i2c);
+#else
+static inline struct dvb_frontend* or51211_attach(const struct or51211_config* config,
+					   struct i2c_adapter* i2c)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
+	return NULL;
+}
+#endif // CONFIG_DVB_OR51211
 
 #endif // OR51211_H
 
diff --git a/drivers/media/dvb/frontends/s5h1420.h b/drivers/media/dvb/frontends/s5h1420.h
index 4e39015..efc54d7 100644
--- a/drivers/media/dvb/frontends/s5h1420.h
+++ b/drivers/media/dvb/frontends/s5h1420.h
@@ -34,7 +34,16 @@ struct s5h1420_config
 	u8 invert:1;
 };
 
+#if defined(CONFIG_DVB_S5H1420) || defined(CONFIG_DVB_S5H1420_MODULE)
 extern struct dvb_frontend* s5h1420_attach(const struct s5h1420_config* config,
 	     struct i2c_adapter* i2c);
+#else
+static inline struct dvb_frontend* s5h1420_attach(const struct s5h1420_config* config,
+					   struct i2c_adapter* i2c)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
+	return NULL;
+}
+#endif // CONFIG_DVB_S5H1420
 
 #endif // S5H1420_H
diff --git a/drivers/media/dvb/frontends/sp8870.h b/drivers/media/dvb/frontends/sp8870.h
index 93afbb9..4cf27d3 100644
--- a/drivers/media/dvb/frontends/sp8870.h
+++ b/drivers/media/dvb/frontends/sp8870.h
@@ -35,7 +35,16 @@ struct sp8870_config
 	int (*request_firmware)(struct dvb_frontend* fe, const struct firmware **fw, char* name);
 };
 
+#if defined(CONFIG_DVB_SP8870) || defined(CONFIG_DVB_SP8870_MODULE)
 extern struct dvb_frontend* sp8870_attach(const struct sp8870_config* config,
 					  struct i2c_adapter* i2c);
+#else
+static inline struct dvb_frontend* sp8870_attach(const struct sp8870_config* config,
+					  struct i2c_adapter* i2c)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
+	return NULL;
+}
+#endif // CONFIG_DVB_SP8870
 
 #endif // SP8870_H
diff --git a/drivers/media/dvb/frontends/sp887x.h b/drivers/media/dvb/frontends/sp887x.h
index c44b0eb..cab7ea6 100644
--- a/drivers/media/dvb/frontends/sp887x.h
+++ b/drivers/media/dvb/frontends/sp887x.h
@@ -17,7 +17,16 @@ struct sp887x_config
 	int (*request_firmware)(struct dvb_frontend* fe, const struct firmware **fw, char* name);
 };
 
+#if defined(CONFIG_DVB_SP887X) || defined(CONFIG_DVB_SP887X_MODULE)
 extern struct dvb_frontend* sp887x_attach(const struct sp887x_config* config,
 					  struct i2c_adapter* i2c);
+#else
+static inline struct dvb_frontend* sp887x_attach(const struct sp887x_config* config,
+					  struct i2c_adapter* i2c)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
+	return NULL;
+}
+#endif // CONFIG_DVB_SP887X
 
 #endif // SP887X_H
diff --git a/drivers/media/dvb/frontends/stv0297.h b/drivers/media/dvb/frontends/stv0297.h
index 1da5384..760b80d 100644
--- a/drivers/media/dvb/frontends/stv0297.h
+++ b/drivers/media/dvb/frontends/stv0297.h
@@ -42,7 +42,16 @@ struct stv0297_config
 	u8 stop_during_read:1;
 };
 
+#if defined(CONFIG_DVB_STV0297) || defined(CONFIG_DVB_STV0297_MODULE)
 extern struct dvb_frontend* stv0297_attach(const struct stv0297_config* config,
 					   struct i2c_adapter* i2c);
+#else
+static inline struct dvb_frontend* stv0297_attach(const struct stv0297_config* config,
+					   struct i2c_adapter* i2c)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
+	return NULL;
+}
+#endif // CONFIG_DVB_STV0297
 
 #endif // STV0297_H
diff --git a/drivers/media/dvb/frontends/stv0299.h b/drivers/media/dvb/frontends/stv0299.h
index d1abaf9..7ef2520 100644
--- a/drivers/media/dvb/frontends/stv0299.h
+++ b/drivers/media/dvb/frontends/stv0299.h
@@ -89,8 +89,17 @@ struct stv0299_config
 	int (*set_symbol_rate)(struct dvb_frontend* fe, u32 srate, u32 ratio);
 };
 
+#if defined(CONFIG_DVB_STV0299) || defined(CONFIG_DVB_STV0299_MODULE)
 extern struct dvb_frontend* stv0299_attach(const struct stv0299_config* config,
 					   struct i2c_adapter* i2c);
+#else
+static inline struct dvb_frontend* stv0299_attach(const struct stv0299_config* config,
+					   struct i2c_adapter* i2c)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
+	return NULL;
+}
+#endif // CONFIG_DVB_STV0299
 
 static inline int stv0299_writereg(struct dvb_frontend *fe, u8 reg, u8 val) {
 	int r = 0;
diff --git a/drivers/media/dvb/frontends/tda10021.h b/drivers/media/dvb/frontends/tda10021.h
index e77df5e..d68ae20 100644
--- a/drivers/media/dvb/frontends/tda10021.h
+++ b/drivers/media/dvb/frontends/tda10021.h
@@ -32,8 +32,17 @@ struct tda10021_config
 	u8 demod_address;
 };
 
+#if defined(CONFIG_DVB_TDA10021) || defined(CONFIG_DVB_TDA10021_MODULE)
 extern struct dvb_frontend* tda10021_attach(const struct tda10021_config* config,
 					    struct i2c_adapter* i2c, u8 pwm);
+#else
+static inline struct dvb_frontend* tda10021_attach(const struct tda10021_config* config,
+					    struct i2c_adapter* i2c, u8 pwm)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
+	return NULL;
+}
+#endif // CONFIG_DVB_TDA10021
 
 static inline int tda10021_writereg(struct dvb_frontend *fe, u8 reg, u8 val) {
 	int r = 0;
diff --git a/drivers/media/dvb/frontends/tda1004x.h b/drivers/media/dvb/frontends/tda1004x.h
index 7ffffa0..e28fca0 100644
--- a/drivers/media/dvb/frontends/tda1004x.h
+++ b/drivers/media/dvb/frontends/tda1004x.h
@@ -71,11 +71,26 @@ struct tda1004x_config
 	int (*request_firmware)(struct dvb_frontend* fe, const struct firmware **fw, char* name);
 };
 
+#if defined(CONFIG_DVB_TDA1004X) || defined(CONFIG_DVB_TDA1004X_MODULE)
 extern struct dvb_frontend* tda10045_attach(const struct tda1004x_config* config,
 					    struct i2c_adapter* i2c);
 
 extern struct dvb_frontend* tda10046_attach(const struct tda1004x_config* config,
 					    struct i2c_adapter* i2c);
+#else
+static inline struct dvb_frontend* tda10045_attach(const struct tda1004x_config* config,
+					    struct i2c_adapter* i2c)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
+	return NULL;
+}
+static inline struct dvb_frontend* tda10046_attach(const struct tda1004x_config* config,
+					    struct i2c_adapter* i2c)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
+	return NULL;
+}
+#endif // CONFIG_DVB_TDA1004X
 
 static inline int tda1004x_writereg(struct dvb_frontend *fe, u8 reg, u8 val) {
 	int r = 0;
diff --git a/drivers/media/dvb/frontends/tda8083.h b/drivers/media/dvb/frontends/tda8083.h
index e7a48f6..aae15bd 100644
--- a/drivers/media/dvb/frontends/tda8083.h
+++ b/drivers/media/dvb/frontends/tda8083.h
@@ -35,7 +35,16 @@ struct tda8083_config
 	u8 demod_address;
 };
 
+#if defined(CONFIG_DVB_TDA8083) || defined(CONFIG_DVB_TDA8083_MODULE)
 extern struct dvb_frontend* tda8083_attach(const struct tda8083_config* config,
 					   struct i2c_adapter* i2c);
+#else
+static inline struct dvb_frontend* tda8083_attach(const struct tda8083_config* config,
+					   struct i2c_adapter* i2c)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
+	return NULL;
+}
+#endif // CONFIG_DVB_TDA8083
 
 #endif // TDA8083_H
diff --git a/drivers/media/dvb/frontends/ves1820.h b/drivers/media/dvb/frontends/ves1820.h
index 520f095..f0c9dde 100644
--- a/drivers/media/dvb/frontends/ves1820.h
+++ b/drivers/media/dvb/frontends/ves1820.h
@@ -41,7 +41,16 @@ struct ves1820_config
 	u8 selagc:1;
 };
 
+#if defined(CONFIG_DVB_VES1820) || defined(CONFIG_DVB_VES1820_MODULE)
 extern struct dvb_frontend* ves1820_attach(const struct ves1820_config* config,
 					   struct i2c_adapter* i2c, u8 pwm);
+#else
+static inline struct dvb_frontend* ves1820_attach(const struct ves1820_config* config,
+					   struct i2c_adapter* i2c, u8 pwm)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
+	return NULL;
+}
+#endif // CONFIG_DVB_VES1820
 
 #endif // VES1820_H
diff --git a/drivers/media/dvb/frontends/ves1x93.h b/drivers/media/dvb/frontends/ves1x93.h
index ba88ae0..395fed3 100644
--- a/drivers/media/dvb/frontends/ves1x93.h
+++ b/drivers/media/dvb/frontends/ves1x93.h
@@ -40,7 +40,16 @@ struct ves1x93_config
 	u8 invert_pwm:1;
 };
 
+#if defined(CONFIG_DVB_VES1X93) || defined(CONFIG_DVB_VES1X93_MODULE)
 extern struct dvb_frontend* ves1x93_attach(const struct ves1x93_config* config,
 					   struct i2c_adapter* i2c);
+#else
+static inline struct dvb_frontend* ves1x93_attach(const struct ves1x93_config* config,
+					   struct i2c_adapter* i2c)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
+	return NULL;
+}
+#endif // CONFIG_DVB_VES1X93
 
 #endif // VES1X93_H
diff --git a/drivers/media/dvb/frontends/zl10353.h b/drivers/media/dvb/frontends/zl10353.h
index 15804b3..6aec655d 100644
--- a/drivers/media/dvb/frontends/zl10353.h
+++ b/drivers/media/dvb/frontends/zl10353.h
@@ -33,7 +33,16 @@ struct zl10353_config
 	int no_tuner;
 };
 
+#if defined(CONFIG_DVB_ZL10353) || defined(CONFIG_DVB_ZL10353_MODULE)
 extern struct dvb_frontend* zl10353_attach(const struct zl10353_config *config,
 					   struct i2c_adapter *i2c);
+#else
+static inline struct dvb_frontend* zl10353_attach(const struct zl10353_config *config,
+					   struct i2c_adapter *i2c)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __FUNCTION__);
+	return NULL;
+}
+#endif // CONFIG_DVB_ZL10353
 
 #endif /* ZL10353_H */