[PATCH net-next] net/9p/usbg: Constify struct configfs_item_operations

'struct configfs_item_operations' is not modified in this driver.

Constifying this structure moves some data to a read-only section, so
increases overall security, especially when the structure holds some
function pointers.

On a x86_64, with allmodconfig:
Before:
======
   text	   data	    bss	    dec	    hex	filename
  25167	   9336	    256	  34759	   87c7	net/9p/trans_usbg.o

After:
=====
   text	   data	    bss	    dec	    hex	filename
  25231	   9272	    256	  34759	   87c7	net/9p/trans_usbg.o

Signed-off-by: Christophe JAILLET <[email protected]>
---
 net/9p/trans_usbg.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/9p/trans_usbg.c b/net/9p/trans_usbg.c
index 1ce70338999c..419cda13a7b5 100644
--- a/net/9p/trans_usbg.c
+++ b/net/9p/trans_usbg.c
@@ -804,7 +804,7 @@ static void usb9pfs_attr_release(struct config_item *item)
 	usb_put_function_instance(&usb9pfs_opts->func_inst);
 }
 
-static struct configfs_item_operations usb9pfs_item_ops = {
+static const struct configfs_item_operations usb9pfs_item_ops = {
 	.release		= usb9pfs_attr_release,
 };
 
-- 
2.54.0