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>

1 files changed, 9 insertions, 1 deletions

diff --git a/drivers/media/dvb/frontends/lnbp21.h b/drivers/media/dvb/frontends/lnbp21.h
index 8c2df67d81ee..1fe1dd179312 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