linux-kernel - [PATCH 5/6] dvb/drxd: stub out drxd

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Date:	Thu,  3 May 2012 16:22:26 -0600
From:	mathieu.poirier@...aro.org
To:	mchehab@...radead.org
Cc:	linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
	arnd@...db.de, mathieu.poirier@...aro.org
Subject: [PATCH 5/6] dvb/drxd: stub out drxd_attach when not built

From: Arnd Bergmann <arnd@...db.de>

This avoids getting
drivers/media/video/em28xx/em28xx-dvb.c:721: \
                       undefined reference to `drxd_attach'

Signed-off-by: Arnd Bergmann <arnd@...db.de>
Signed-off-by: Mathieu Poirier <mathieu.poirier@...aro.org>
---
 drivers/media/dvb/frontends/drxd.h |   14 ++++++++++++++
 1 files changed, 14 insertions(+), 0 deletions(-)

diff --git a/drivers/media/dvb/frontends/drxd.h b/drivers/media/dvb/frontends/drxd.h
index 3439873..216c8c3 100644
--- a/drivers/media/dvb/frontends/drxd.h
+++ b/drivers/media/dvb/frontends/drxd.h
@@ -51,9 +51,23 @@ struct drxd_config {
 	 s16(*osc_deviation) (void *priv, s16 dev, int flag);
 };
 
+#if defined(CONFIG_DVB_DRXD) || \
+			(defined(CONFIG_DVB_DRXD_MODULE) && defined(MODULE))
 extern
 struct dvb_frontend *drxd_attach(const struct drxd_config *config,
 				 void *priv, struct i2c_adapter *i2c,
 				 struct device *dev);
+#else
+static inline
+struct dvb_frontend *drxd_attach(const struct drxd_config *config,
+				 void *priv, struct i2c_adapter *i2c,
+				 struct device *dev)
+{
+	printk(KERN_INFO "%s: not probed - driver disabled by Kconfig\n",
+	       __func__);
+	return NULL;
+}
+#endif
+
 extern int drxd_config_i2c(struct dvb_frontend *, int);
 #endif
-- 
1.7.5.4

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