From: Denis Mukhin <dmukhin@ford.com> 

Both conring{,_size} should be RO after initialization is completed.

Suggested-by: Andrew Cooper <andrew.cooper3@citrix.com>
Signed-off-by: Denis Mukhin <dmukhin@ford.com>
---
Changes since v4:
- new patch
---
 xen/drivers/char/console.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/xen/drivers/char/console.c b/xen/drivers/char/console.c
index 522b2f489a53..ef9131439bba 100644
--- a/xen/drivers/char/console.c
+++ b/xen/drivers/char/console.c
@@ -346,8 +346,8 @@ size_param("conring_size", opt_conring_size);
 #define _CONRING_SIZE       (1U << CONFIG_CONRING_SHIFT)
 #define CONRING_IDX_MASK(i) ((i) & (conring_size - 1))
 static char __initdata _conring[_CONRING_SIZE];
-static char *__read_mostly conring = _conring;
-static uint32_t __read_mostly conring_size = _CONRING_SIZE;
+static char *__ro_after_init conring = _conring;
+static uint32_t __ro_after_init conring_size = _CONRING_SIZE;
 static uint32_t conringc, conringp;
 
 static void cf_check conring_notify(void *unused)
-- 
2.52.0