V4L/DVB (3415): Msp3400-kthreads.c: make 3 functions static

This patch makes three needlessly global functions static.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/video/msp3400-kthreads.c b/drivers/media/video/msp3400-kthreads.c
index c4668f4..852ab6a 100644
--- a/drivers/media/video/msp3400-kthreads.c
+++ b/drivers/media/video/msp3400-kthreads.c
@@ -154,7 +154,7 @@
 	return "unknown";
 }
 
-void msp_set_source(struct i2c_client *client, u16 src)
+static void msp_set_source(struct i2c_client *client, u16 src)
 {
 	struct msp_state *state = i2c_get_clientdata(client);
 
@@ -217,7 +217,7 @@
 
 /* Set audio mode. Note that the pre-'G' models do not support BTSC+SAP,
    nor do they support stereo BTSC. */
-void msp3400c_set_audmode(struct i2c_client *client)
+static void msp3400c_set_audmode(struct i2c_client *client)
 {
 	static char *strmode[] = { "mono", "stereo", "lang2", "lang1" };
 	struct msp_state *state = i2c_get_clientdata(client);
@@ -944,7 +944,7 @@
 		status, is_stereo, is_bilingual, state->rxsubchans);
 }
 
-void msp34xxg_set_audmode(struct i2c_client *client)
+static void msp34xxg_set_audmode(struct i2c_client *client)
 {
 	struct msp_state *state = i2c_get_clientdata(client);
 	int source;