[PATCH] drivers/isdn/i4l/: possible cleanups

This patch contains the following possible cleanups:
- make needlessly global code static
- remove the following unused global function:
  - isdn_audio.c: isdn_audio_2adpcm_flush
- remove the following unused struct:
  - isdn_net.c: isdn_concap_demand_dial_dops

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c
index e21007e..ad5aa38 100644
--- a/drivers/isdn/i4l/isdn_tty.c
+++ b/drivers/isdn/i4l/isdn_tty.c
@@ -273,7 +273,7 @@
 	return 1;
 }
 
-void
+static void
 isdn_tty_cleanup_xmit(modem_info * info)
 {
 	skb_queue_purge(&info->xmit_queue);
@@ -560,7 +560,7 @@
 /*
  * return the usage calculated by si and layer 2 protocol
  */
-int
+static int
 isdn_calc_usage(int si, int l2)
 {
 	int usg = ISDN_USAGE_MODEM;