From e374ae2be2f7cb4aad46e17e3fa5da7bbb0d2a09 Mon Sep 17 00:00:00 2001 From: "Ricardo B. Marliere" Date: Sun, 4 Feb 2024 10:56:44 -0300 Subject: memory tier: make memory_tier_subsys const Now that the driver core can properly handle constant struct bus_type, move the memory_tier_subsys variable to be a constant structure as well, placing it into read-only memory which can not be modified at runtime. Link: https://lkml.kernel.org/r/20240204-bus_cleanup-mm-v1-1-00f49286f164@marliere.net Signed-off-by: Ricardo B. Marliere Suggested-by: Greg Kroah-Hartman Reviewed-by: Greg Kroah-Hartman Signed-off-by: Andrew Morton --- mm/memory-tiers.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/memory-tiers.c b/mm/memory-tiers.c index 5462d9e3c84c..ed20f96bf89d 100644 --- a/mm/memory-tiers.c +++ b/mm/memory-tiers.c @@ -39,7 +39,7 @@ static LIST_HEAD(memory_tiers); static struct node_memory_type_map node_memory_types[MAX_NUMNODES]; struct memory_dev_type *default_dram_type; -static struct bus_type memory_tier_subsys = { +static const struct bus_type memory_tier_subsys = { .name = "memory_tiering", .dev_name = "memory_tier", }; -- cgit v1.2.3