Commit 31e7c4cc authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
Browse files

s390/smp: move to use bus_get_dev_root() 



Direct access to the struct bus_type dev_root pointer is going away soon
so replace that with a call to bus_get_dev_root() instead, which is what
it is there for.

Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Ilya Leoshkevich <iii@linux.ibm.com>
Cc: linux-s390@vger.kernel.org
Acked-by: default avatarHeiko Carstens <hca@linux.ibm.com>
Link: https://lore.kernel.org/r/20230313182918.1312597-19-gregkh@linuxfoundation.org


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 9493ed19

arch/s390/kernel/smp.c

+9 −3
Original line number Diff line number Diff line
@@ -1227,11 +1227,17 @@ static DEVICE_ATTR_WO(rescan); 


static int __init s390_smp_init(void)

{

	struct device *dev_root;

	int cpu, rc = 0;



	rc = device_create_file(cpu_subsys.dev_root, &dev_attr_rescan);

	dev_root = bus_get_dev_root(&cpu_subsys);

	if (dev_root) {

		rc = device_create_file(dev_root, &dev_attr_rescan);

		put_device(dev_root);

		if (rc)

			return rc;

	}



	for_each_present_cpu(cpu) {

		rc = smp_add_present_cpu(cpu);

		if (rc)