[S390] Get rid of a lot of sparse warnings.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/drivers/s390/net/claw.c b/drivers/s390/net/claw.c
index 95f4e10..4313f31 100644
--- a/drivers/s390/net/claw.c
+++ b/drivers/s390/net/claw.c
@@ -121,7 +121,7 @@
 #define DEBUG
 #endif
 
- char debug_buffer[255];
+static char debug_buffer[255];
 /**
  * Debug Facility Stuff
  */
diff --git a/drivers/s390/net/cu3088.c b/drivers/s390/net/cu3088.c
index e965f03..76728ae 100644
--- a/drivers/s390/net/cu3088.c
+++ b/drivers/s390/net/cu3088.c
@@ -57,7 +57,7 @@
 
 static struct ccw_driver cu3088_driver;
 
-struct device *cu3088_root_dev;
+static struct device *cu3088_root_dev;
 
 static ssize_t
 group_write(struct device_driver *drv, const char *buf, size_t count)
diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c
index e5665b6..b97dd15 100644
--- a/drivers/s390/net/lcs.c
+++ b/drivers/s390/net/lcs.c
@@ -828,7 +828,7 @@
 /**
  * Emit buffer of a lan comand.
  */
-void
+static void
 lcs_lancmd_timeout(unsigned long data)
 {
 	struct lcs_reply *reply, *list_reply, *r;
@@ -1360,7 +1360,7 @@
 	return 0;
 }
 
-void
+static void
 lcs_schedule_recovery(struct lcs_card *card)
 {
 	LCS_DBF_TEXT(2, trace, "startrec");
@@ -1990,7 +1990,7 @@
 
 }
 
-DEVICE_ATTR(lancmd_timeout, 0644, lcs_timeout_show, lcs_timeout_store);
+static DEVICE_ATTR(lancmd_timeout, 0644, lcs_timeout_show, lcs_timeout_store);
 
 static ssize_t
 lcs_dev_recover_store(struct device *dev, struct device_attribute *attr,
diff --git a/drivers/s390/net/netiucv.c b/drivers/s390/net/netiucv.c
index d7d1cc0..3346088 100644
--- a/drivers/s390/net/netiucv.c
+++ b/drivers/s390/net/netiucv.c
@@ -2053,7 +2053,7 @@
 	return ret;
 }
 
-DRIVER_ATTR(connection, 0200, NULL, conn_write);
+static DRIVER_ATTR(connection, 0200, NULL, conn_write);
 
 static ssize_t
 remove_write (struct device_driver *drv, const char *buf, size_t count)
@@ -2112,7 +2112,7 @@
         return -EINVAL;
 }
 
-DRIVER_ATTR(remove, 0200, NULL, remove_write);
+static DRIVER_ATTR(remove, 0200, NULL, remove_write);
 
 static void
 netiucv_banner(void)
diff --git a/drivers/s390/net/qeth_sys.c b/drivers/s390/net/qeth_sys.c
index 5836737..fca523a 100644
--- a/drivers/s390/net/qeth_sys.c
+++ b/drivers/s390/net/qeth_sys.c
@@ -998,7 +998,7 @@
 	.store	= _store,						     \
 };
 
-int
+static int
 qeth_check_layer2(struct qeth_card *card)
 {
 	if (card->options.layer2)