[PATCH] xen/manage: Constify struct shutdown_handler

[Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>]

'struct shutdown_handler' is not modified in this driver.

Constifying this structure moves some data to a read-only section, so
increase overall security.

On a x86_64, with allmodconfig:
Before:
======
   text    data     bss     dec     hex filename
   7043     788       8    7839    1e9f drivers/xen/manage.o

After:
=====
   text    data     bss     dec     hex filename
   7164     676       8    7848    1ea8 drivers/xen/manage.o

Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
Compile tested-only
---
 drivers/xen/manage.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/xen/manage.c b/drivers/xen/manage.c
index c16df629907e..b4b4ebed68da 100644
--- a/drivers/xen/manage.c
+++ b/drivers/xen/manage.c
@@ -208,7 +208,7 @@ static void do_reboot(void)
        orderly_reboot();
 }
 
-static struct shutdown_handler shutdown_handlers[] = {
+static const struct shutdown_handler shutdown_handlers[] = {
        { "poweroff",   true,   do_poweroff },
        { "halt",       false,  do_poweroff },
        { "reboot",     true,   do_reboot   },
-- 
2.45.2