drbd: Move string function prototypes from linux/drbd.h to drbd_string.h

Signed-off-by: Andreas Gruenbacher <[e-mail]>
Signed-off-by: Philipp Reisner <[e-mail]>

drivers/block/drbd/drbd_int.h

···
 #include <linux/prefetch.h>
 #include <linux/drbd_genl_api.h>
 #include <linux/drbd.h>
+#include "drbd_strings.h"
 #include "drbd_state.h"
 #include "drbd_protocol.h"
 

drivers/block/drbd/drbd_strings.c

···
 */
 
 #include <linux/drbd.h>
+#include "drbd_strings.h"
 
 static const char *drbd_conn_s_names[] = {
 	[C_STANDALONE]       = "StandAlone",

drivers/block/drbd/drbd_strings.h

···
+#ifndef __DRBD_STRINGS_H
+#define __DRBD_STRINGS_H
+
+extern const char *drbd_conn_str(enum drbd_conns);
+extern const char *drbd_role_str(enum drbd_role);
+extern const char *drbd_disk_str(enum drbd_disk_state);
+extern const char *drbd_set_st_err_str(enum drbd_state_rv);
+
+#endif  /* __DRBD_STRINGS_H */

include/linux/drbd.h

···
 	SS_AFTER_LAST_ERROR = -22,    /* Keep this at bottom */
 };
 
-/* from drbd_strings.c */
-extern const char *drbd_conn_str(enum drbd_conns);
-extern const char *drbd_role_str(enum drbd_role);
-extern const char *drbd_disk_str(enum drbd_disk_state);
-extern const char *drbd_set_st_err_str(enum drbd_state_rv);
-
 #define SHARED_SECRET_MAX 64
 
 #define MDF_CONSISTENT		(1 << 0)