staging: lustre: Make the function 'llog_cat_process_cb' static

This patch defines the function 'llog_cat_process_cb' as static
Signed-off-by: Arjun AK <arjunak234@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/lustre/obdclass/llog_cat.c

@@ -526,7 +526,8 @@ int llog_cat_cancel_records(const struct lu_env *env,
 }
 EXPORT_SYMBOL(llog_cat_cancel_records);
 
-int llog_cat_process_cb(const struct lu_env *env, struct llog_handle *cat_llh,
+static int llog_cat_process_cb(const struct lu_env *env,
+			       struct llog_handle *cat_llh,
 			       struct llog_rec_hdr *rec, void *data)
 {
 	struct llog_process_data *d = data;