From 9fd2eb9e18a0a0b5a127937586388ed0181d9dac Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Sun, 14 Sep 2025 15:42:40 +0200 Subject: [PATCH] cdx: make cdx_bus_type constant Now that the driver core can properly handle constant struct bus_type, move the cdx_bus_type variable to be a constant structure as well, placing it into read-only memory which can not be modified at runtime. Cc: Nipun Gupta Cc: Nikhil Agarwal Acked-by: Nipun Gupta Signed-off-by: Greg Kroah-Hartman Link: https://patch.msgid.link/2025091439-sustained-acorn-4af4@gregkh Signed-off-by: Greg Kroah-Hartman --- drivers/cdx/cdx.c | 4 ++-- include/linux/cdx/cdx_bus.h | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/cdx/cdx.c b/drivers/cdx/cdx.c index 3d50f8cd9c0bd..b39af2f1937f7 100644 --- a/drivers/cdx/cdx.c +++ b/drivers/cdx/cdx.c @@ -170,7 +170,7 @@ static int cdx_unregister_device(struct device *dev, return 0; } -static void cdx_unregister_devices(struct bus_type *bus) +static void cdx_unregister_devices(const struct bus_type *bus) { /* Reset all the devices attached to cdx bus */ bus_for_each_dev(bus, NULL, NULL, cdx_unregister_device); @@ -651,7 +651,7 @@ static struct attribute *cdx_bus_attrs[] = { }; ATTRIBUTE_GROUPS(cdx_bus); -struct bus_type cdx_bus_type = { +const struct bus_type cdx_bus_type = { .name = "cdx", .match = cdx_bus_match, .probe = cdx_probe, diff --git a/include/linux/cdx/cdx_bus.h b/include/linux/cdx/cdx_bus.h index 79bb80e567908..b1ba97f6c9ad6 100644 --- a/include/linux/cdx/cdx_bus.h +++ b/include/linux/cdx/cdx_bus.h @@ -234,7 +234,7 @@ int __must_check __cdx_driver_register(struct cdx_driver *cdx_driver, */ void cdx_driver_unregister(struct cdx_driver *cdx_driver); -extern struct bus_type cdx_bus_type; +extern const struct bus_type cdx_bus_type; /** * cdx_dev_reset - Reset CDX device -- 2.47.3