staging: lustre: llite: declare internal symbols as static

Fixes sparse warnings like:
  warning: symbol '...' was not declared. Should it be static?
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Cc: Peng Tao <bergwolf@gmail.com>
Cc: Jinshan Xiong <jinshan.xiong@intel.com>
Cc: Srikrishan Malik <srikrishanmalik@gmail.com>
Cc: HPDD-discuss@lists.01.org
Cc: devel@driverdev.osuosl.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/lustre/llite/dir.c

@@ -652,7 +652,7 @@ static int ll_send_mgc_param(struct obd_export *mgc, char *string)
 	return rc;
 }
 
-int ll_dir_setdirstripe(struct inode *dir, struct lmv_user_md *lump,
+static int ll_dir_setdirstripe(struct inode *dir, struct lmv_user_md *lump,
 			       char *filename)
 {
 	struct ptlrpc_request *request = NULL;

drivers/staging/lustre/lustre/llite/file.c

@@ -1587,7 +1587,8 @@ ll_get_grouplock(struct inode *inode, struct file *file, unsigned long arg)
 	return 0;
 }
 
-int ll_put_grouplock(struct inode *inode, struct file *file, unsigned long arg)
+static int ll_put_grouplock(struct inode *inode, struct file *file,
+			    unsigned long arg)
 {
 	struct ll_inode_info   *lli = ll_i2info(inode);
 	struct ll_file_data    *fd = LUSTRE_FPRIVATE(file);