ISDN/HiSax: Fix some warnings

gcc 3.2 is asking for a little more const correctness...

drivers/isdn/hisax/config.c

@@ -703,16 +703,16 @@ int jiftime(char *s, long mark)
 	return 8;
 }
 
-static u8 tmpbuf[HISAX_STATUS_BUFSIZE];
+static char tmpbuf[HISAX_STATUS_BUFSIZE];
 
-void VHiSax_putstatus(struct IsdnCardState *cs, char *head, char *fmt,
+void VHiSax_putstatus(struct IsdnCardState *cs, char *head, const char *fmt,
 		      va_list args)
 {
 	/* if head == NULL the fmt contains the full info */
 
 	unsigned long flags;
 	int count, i;
-	u8 *p;
+	char *p;
 	isdn_ctrl ic;
 	int len;
 
@@ -727,7 +727,7 @@ void VHiSax_putstatus(struct IsdnCardState *cs, char *head, char *fmt,
 		len = p - tmpbuf;
 		p = tmpbuf;
 	} else {
-		p = fmt;
+		p = (char *) fmt;
 		len = strlen(fmt);
 	}
 	if (!cs) {

drivers/isdn/hisax/hisax.h

@@ -1402,7 +1402,7 @@ int jiftime(char *s, long mark);
 int HiSax_command(isdn_ctrl * ic);
 int HiSax_writebuf_skb(int id, int chan, int ack, struct sk_buff *skb);
 void HiSax_putstatus(struct IsdnCardState *cs, char *head, char *fmt, ...);
-void VHiSax_putstatus(struct IsdnCardState *cs, char *head, char *fmt, va_list args);
+void VHiSax_putstatus(struct IsdnCardState *cs, char *head, const char *fmt, va_list args);
 void HiSax_reportcard(int cardnr, int sel);
 int QuickHex(char *txt, u8 * p, int cnt);
 void LogFrame(struct IsdnCardState *cs, u8 * p, int size);

drivers/isdn/hisax/isdnl1.c

@@ -126,7 +126,7 @@ static char *strL1Event[] =
 };
 
 void
-debugl1(struct IsdnCardState *cs, char *fmt, ...)
+debugl1(struct IsdnCardState *cs, const char *fmt, ...)
 {
 	va_list args;
 	char tmp[8];

drivers/isdn/hisax/isdnl1.h

@@ -28,7 +28,7 @@
 #define B_LL_CONNECT	9
 #define B_LL_OK		10
 
-extern void debugl1(struct IsdnCardState *cs, char *fmt, ...);
+extern void debugl1(struct IsdnCardState *cs, const char *fmt, ...);
 extern void DChannel_proc_xmt(struct IsdnCardState *cs);
 extern void DChannel_proc_rcv(struct IsdnCardState *cs);
 extern void l1_msg(struct IsdnCardState *cs, int pr, void *arg);