Commit fd2b4bfa authored by Ricardo B. Marliere's avatar Ricardo B. Marliere Committed by Heiko Carstens
Browse files

s390/cio: make ccw_bus_type const 



Now that the driver core can properly handle constant struct bus_type,
move the ccw_bus_type variable to be a constant structure as well,
placing it into read-only memory which can not be modified at runtime.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Suggested-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatar"Ricardo B. Marliere" <ricardo@marliere.net>
Reviewed-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20240203-bus_cleanup-s390-v1-3-ac891afc7282@marliere.net


Signed-off-by: default avatarHeiko Carstens <hca@linux.ibm.com>
parent 42c4c8fd

drivers/s390/cio/device.c

+2 −2
Original line number Diff line number Diff line
@@ -49,7 +49,7 @@ static const unsigned long recovery_delay[] = { 3, 30, 300 }; 


static atomic_t ccw_device_init_count = ATOMIC_INIT(0);

static DECLARE_WAIT_QUEUE_HEAD(ccw_device_init_wq);

static struct bus_type ccw_bus_type;

static const struct bus_type ccw_bus_type;



/******************* bus type handling ***********************/
@@ -1776,7 +1776,7 @@ static void ccw_device_shutdown(struct device *dev) 
	__disable_cmf(cdev);

}



static struct bus_type ccw_bus_type = {

static const struct bus_type ccw_bus_type = {

	.name   = "ccw",

	.match  = ccw_bus_match,

	.uevent = ccw_uevent,