[S390] qdio: inline qdio_perf_stat_inc

Move qdio_perf_stat_inc to the header file so it can be inlined.
Remove unused qdio_perf_stat_dec.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

drivers/s390/cio/qdio_perf.c

@@ -25,18 +25,6 @@ struct qdio_perf_stats perf_stats;
 static struct proc_dir_entry *qdio_perf_pde;
 #endif
 
-inline void qdio_perf_stat_inc(atomic_long_t *count)
-{
-	if (qdio_performance_stats)
-		atomic_long_inc(count);
-}
-
-inline void qdio_perf_stat_dec(atomic_long_t *count)
-{
-	if (qdio_performance_stats)
-		atomic_long_dec(count);
-}
-
 /*
  * procfs functions
  */

drivers/s390/cio/qdio_perf.h

@@ -9,7 +9,6 @@
 #define QDIO_PERF_H
 
 #include <linux/types.h>
-#include <linux/device.h>
 #include <asm/atomic.h>
 
 struct qdio_perf_stats {
@@ -50,10 +49,13 @@ struct qdio_perf_stats {
 extern struct qdio_perf_stats perf_stats;
 extern int qdio_performance_stats;
 
+static inline void qdio_perf_stat_inc(atomic_long_t *count)
+{
+	if (qdio_performance_stats)
+		atomic_long_inc(count);
+}
+
 int qdio_setup_perf_stats(void);
 void qdio_remove_perf_stats(void);
 
-extern void qdio_perf_stat_inc(atomic_long_t *count);
-extern void qdio_perf_stat_dec(atomic_long_t *count);
-
 #endif