[PATCH] xen/manage: Constify struct shutdown_handler

From: Christophe JAILLET
Date: Sun Jun 23 2024 - 05:27:15 EST


'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