[PATCH] block: Fix elevator name declaration

[Damien Le Moal <damien.lemoal@wdc.com>]

The elevator_name field in struct elevator_type is declared as an array
of characters (ELV_NAME_MAX size) but in practice used as a string
pointer with its initialization done statically within each
elevator elevator_type structure declaration.

Change the declaration of elevator_name to the more appropriate
"const char *" type.

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
---
 include/linux/elevator.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/elevator.h b/include/linux/elevator.h
index 9842e53623f3..b73e6f35fbad 100644
--- a/include/linux/elevator.h
+++ b/include/linux/elevator.h
@@ -75,7 +75,7 @@ struct elevator_type
 	size_t icq_size;	/* see iocontext.h */
 	size_t icq_align;	/* ditto */
 	struct elv_fs_entry *elevator_attrs;
-	char elevator_name[ELV_NAME_MAX];
+	const char *elevator_name;
 	const char *elevator_alias;
 	struct module *elevator_owner;
 #ifdef CONFIG_BLK_DEBUG_FS
-- 
2.21.0