drivers/isdn/hardware/mISDN: fix sparse warnings: make symbols static

Fix this sparse warnings:
  drivers/isdn/hardware/mISDN/hfcpci.c:59:19: warning: symbol 'hfc_tl' was not declared. Should it be static?
  drivers/isdn/hardware/mISDN/hfcpci.c:60:9: warning: symbol 'hfc_jiffies' was not declared. Should it be static?
  drivers/isdn/hardware/mISDN/hfcsusb.h:201:6: warning: symbol 'conf_str' was not declared. Should it be static?
  drivers/isdn/hardware/mISDN/hfcsusb.h:319:12: warning: symbol 'HFC_TE_LAYER1_STATES' was not declared. Should it be static?
  drivers/isdn/hardware/mISDN/hfcsusb.h:331:12: warning: symbol 'HFC_NT_LAYER1_STATES' was not declared. Should it be static?
  drivers/isdn/hardware/mISDN/hfcsusb.c:38:12: warning: symbol 'hfcsusb_rev' was not declared. Should it be static?
  drivers/isdn/hardware/mISDN/hfcsusb.c:978:1: warning: symbol 'fill_isoc_urb' was not declared. Should it be static?
  drivers/isdn/hardware/mISDN/hfcsusb.c:1724:1: warning: symbol 'setup_hfcsusb' was not declared. Should it be static?

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/isdn/hardware/mISDN/hfcsusb.c b/drivers/isdn/hardware/mISDN/hfcsusb.c
index ba6925f..9c427fb 100644
--- a/drivers/isdn/hardware/mISDN/hfcsusb.c
+++ b/drivers/isdn/hardware/mISDN/hfcsusb.c
@@ -35,7 +35,7 @@
 #include <linux/mISDNhw.h>
 #include "hfcsusb.h"
 
-const char *hfcsusb_rev = "Revision: 0.3.3 (socket), 2008-11-05";
+static const char *hfcsusb_rev = "Revision: 0.3.3 (socket), 2008-11-05";
 
 static unsigned int debug;
 static int poll = DEFAULT_TRANSP_BURST_SZ;
@@ -974,7 +974,7 @@
 	spin_unlock(&hw->lock);
 }
 
-void
+static void
 fill_isoc_urb(struct urb *urb, struct usb_device *dev, unsigned int pipe,
 	      void *buf, int num_packets, int packet_size, int interval,
 	      usb_complete_t complete, void *context)
@@ -1720,7 +1720,7 @@
 
 
 /* Hardware Initialization */
-int
+static int
 setup_hfcsusb(struct hfcsusb *hw)
 {
 	int err;