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thunderbolt: make tb_bus_type const

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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 <andreas.noever@gmail.com>
Cc: Michael Jamet <michael.jamet@intel.com>
Cc: Yehezkel Bernat <YehezkelShB@gmail.com>
Cc:  <linux-usb@vger.kernel.org>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Link: https://lore.kernel.org/r/2023121904-utopia-broadcast-06d1@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2023-12-19 16:43:05 +01:00
parent e9158c7e55
commit 8be0c877fb
2 changed files with 2 additions and 2 deletions
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2
drivers/thunderbolt/domain.c
View File

@ -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,

2
include/linux/thunderbolt.h
View File

@ -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;