diff --git a/drivers/isdn/hisax/callc.c b/drivers/isdn/hisax/callc.c
index 7c56c44f0fd16955be1e7c488bfc862e709f24a1..025a20d487c5df71a8f42d7babc6fc696d308737 100644
--- a/drivers/isdn/hisax/callc.c
+++ b/drivers/isdn/hisax/callc.c
@@ -24,7 +24,6 @@
 const char *lli_revision = "$Revision: 2.59.2.4 $";
 
 extern struct IsdnCard cards[];
-extern int nrcards;
 
 static int init_b_st(struct Channel *chanp, int incoming);
 static void release_b_st(struct Channel *chanp);
diff --git a/drivers/isdn/hisax/config.c b/drivers/isdn/hisax/config.c
index ded9d0baf607b0daa8450c1b0e7bad775285e048..4fab18d4d02fecf84e42d7da99c4ef1d318a877f 100644
--- a/drivers/isdn/hisax/config.c
+++ b/drivers/isdn/hisax/config.c
@@ -361,12 +361,6 @@ module_param_array(io1, int, NULL, 0);
 
 int nrcards;
 
-extern const char *l1_revision;
-extern const char *l2_revision;
-extern const char *l3_revision;
-extern const char *lli_revision;
-extern const char *tei_revision;
-
 char *HiSax_getrev(const char *revision)
 {
 	char *rev;
diff --git a/drivers/isdn/hisax/hfcscard.c b/drivers/isdn/hisax/hfcscard.c
index cf082665cc8bb36022cc671c2c57b22234f2aa8e..20d7688b397baee6d9c6b3056f1c142bb4a548a2 100644
--- a/drivers/isdn/hisax/hfcscard.c
+++ b/drivers/isdn/hisax/hfcscard.c
@@ -16,8 +16,6 @@
 #include "hfc_2bds0.h"
 #include "isdnl1.h"
 
-extern const char *CardType[];
-
 static const char *hfcs_revision = "$Revision: 1.10.2.4 $";
 
 static irqreturn_t
diff --git a/drivers/isdn/hisax/hisax.h b/drivers/isdn/hisax/hisax.h
index e8d429fda846847fd4a6e0063e9a8efd1742615c..f8527046f1973a879a8a07d8111972ea3a0422ea 100644
--- a/drivers/isdn/hisax/hisax.h
+++ b/drivers/isdn/hisax/hisax.h
@@ -121,6 +121,15 @@
 
 #ifdef __KERNEL__
 
+extern const char *CardType[];
+extern int nrcards;
+
+extern const char *l1_revision;
+extern const char *l2_revision;
+extern const char *l3_revision;
+extern const char *lli_revision;
+extern const char *tei_revision;
+
 /* include l3dss1 & ni1 specific process structures, but no other defines */
 #ifdef CONFIG_HISAX_EURO
   #define l3dss1_process
diff --git a/drivers/isdn/hisax/isdnl1.c b/drivers/isdn/hisax/isdnl1.c
index a14204ec88eec7990aeadbe332b7406840a2bbd3..317f16f516f242b6468ba5cd59c47862e6c36a0a 100644
--- a/drivers/isdn/hisax/isdnl1.c
+++ b/drivers/isdn/hisax/isdnl1.c
@@ -18,12 +18,12 @@
  *
  */
 
-const char *l1_revision = "$Revision: 2.46.2.5 $";
-
 #include <linux/init.h>
 #include "hisax.h"
 #include "isdnl1.h"
 
+const char *l1_revision = "$Revision: 2.46.2.5 $";
+
 #define TIMER3_VALUE 7000
 
 static struct Fsm l1fsm_b;
diff --git a/drivers/isdn/hisax/sedlbauer.c b/drivers/isdn/hisax/sedlbauer.c
index a10dfa82c734d815f7018ab3cf9932fabdee03fd..5569a522e2a13c998f305c730c361d0809a0d8f4 100644
--- a/drivers/isdn/hisax/sedlbauer.c
+++ b/drivers/isdn/hisax/sedlbauer.c
@@ -48,8 +48,6 @@
 #include <linux/pci.h>
 #include <linux/isapnp.h>
 
-extern const char *CardType[];
-
 static const char *Sedlbauer_revision = "$Revision: 1.34.2.6 $";
 
 static const char *Sedlbauer_Types[] =
diff --git a/drivers/isdn/hisax/teles0.c b/drivers/isdn/hisax/teles0.c
index 48581335f43c991fab4f415e5c7942cc0105022a..3ca0bed1b88cab005b8a899b109ec03632038248 100644
--- a/drivers/isdn/hisax/teles0.c
+++ b/drivers/isdn/hisax/teles0.c
@@ -21,8 +21,6 @@
 #include "isac.h"
 #include "hscx.h"
 
-extern const char *CardType[];
-
 static const char *teles0_revision = "$Revision: 2.15.2.4 $";
 
 #define TELES_IOMEM_SIZE	0x400
diff --git a/drivers/isdn/hisax/teles3.c b/drivers/isdn/hisax/teles3.c
index 5dc9f1a436291e8c3ddacb42127da72dd4cc3fff..e9f5bb4cdffaabe64f2adf7cc76519d9088e4a78 100644
--- a/drivers/isdn/hisax/teles3.c
+++ b/drivers/isdn/hisax/teles3.c
@@ -20,7 +20,6 @@
 #include "hscx.h"
 #include "isdnl1.h"
 
-extern const char *CardType[];
 static const char *teles3_revision = "$Revision: 2.19.2.4 $";
 
 #define byteout(addr,val) outb(val,addr)