From: Ricardo B. Marliere Date: Sun, 4 Feb 2024 13:56:44 +0000 (-0300) Subject: memory tier: make memory_tier_subsys const X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=e374ae2be2f7cb4aad46e17e3fa5da7bbb0d2a09;p=linux.git 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 --- diff --git a/mm/memory-tiers.c b/mm/memory-tiers.c index 5462d9e3c84c7..ed20f96bf89dc 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", };