staging: lustre: remove libcfs_init_string function

All the function libcfs_init_string did was initialize
a spinlock. We can initialize the spinlock statically
instead.
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/include/linux/libcfs/libcfs.h

@@ -152,8 +152,6 @@ extern struct miscdevice libcfs_dev;
 extern char lnet_upcall[1024];
 extern char lnet_debug_log_upcall[1024];
 
-extern void libcfs_init_nidstrings(void);
-
 extern struct cfs_psdev_ops libcfs_psdev_ops;
 
 extern struct cfs_wi_sched *cfs_sched_rehash;

drivers/staging/lustre/lnet/lnet/nidstrings.c

@@ -61,13 +61,7 @@
 static char      libcfs_nidstrings[LNET_NIDSTR_COUNT][LNET_NIDSTR_SIZE];
 static int       libcfs_nidstring_idx;
 
-static spinlock_t libcfs_nidstring_lock;
-
-void libcfs_init_nidstrings(void)
-{
-	spin_lock_init(&libcfs_nidstring_lock);
-}
-EXPORT_SYMBOL(libcfs_init_nidstrings);
+static DEFINE_SPINLOCK(libcfs_nidstring_lock);
 
 char *
 libcfs_next_nidstring(void)

drivers/staging/lustre/lustre/libcfs/module.c

@@ -701,8 +701,6 @@ static int init_libcfs_module(void)
 {
 	int rc;
 
-	libcfs_init_nidstrings();
-
 	rc = libcfs_debug_init(5 * 1024 * 1024);
 	if (rc < 0) {
 		pr_err("LustreError: libcfs_debug_init: %d\n", rc);