From 8be0c877fb3b671dac0cf56d1f1f9e65f9a9fb81 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Tue, 19 Dec 2023 16:43:05 +0100 Subject: [PATCH] thunderbolt: make tb_bus_type const Now that the driver core can properly handle constant struct bus_type, move the tb_bus_type variable to be a constant structure as well, placing it into read-only memory which can not be modified at runtime. Cc: Andreas Noever Cc: Michael Jamet Cc: Yehezkel Bernat Cc: Acked-by: Mika Westerberg Link: https://lore.kernel.org/r/2023121904-utopia-broadcast-06d1@gregkh Signed-off-by: Greg Kroah-Hartman --- drivers/thunderbolt/domain.c | 2 +- include/linux/thunderbolt.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/thunderbolt/domain.c b/drivers/thunderbolt/domain.c index ec7b5f65804e..9fb1a64f3300 100644 --- a/drivers/thunderbolt/domain.c +++ b/drivers/thunderbolt/domain.c @@ -307,7 +307,7 @@ static const struct attribute_group *domain_attr_groups[] = { NULL, }; -struct bus_type tb_bus_type = { +const struct bus_type tb_bus_type = { .name = "thunderbolt", .match = tb_service_match, .probe = tb_service_probe, diff --git a/include/linux/thunderbolt.h b/include/linux/thunderbolt.h index 6151c210d987..2c835e5c41f6 100644 --- a/include/linux/thunderbolt.h +++ b/include/linux/thunderbolt.h @@ -86,7 +86,7 @@ struct tb { unsigned long privdata[]; }; -extern struct bus_type tb_bus_type; +extern const struct bus_type tb_bus_type; extern struct device_type tb_service_type; extern struct device_type tb_xdomain_type; -- 2.20.1