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s390/topology: move to use bus_get_dev_root()

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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: linux-s390@vger.kernel.org
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Link: https://lore.kernel.org/r/20230313182918.1312597-18-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2023-03-13 19:29:00 +01:00
parent 93c42c0b03
commit 9493ed19fb
1 changed files with 10 additions and 1 deletions
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11
arch/s390/kernel/topology.c
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@ -649,12 +649,21 @@ static struct ctl_table topology_dir_table[] = {
static int __init topology_init(void) static int __init topology_init(void)
{ {
struct device *dev_root;
int rc = 0;
timer_setup(&topology_timer, topology_timer_fn, TIMER_DEFERRABLE); timer_setup(&topology_timer, topology_timer_fn, TIMER_DEFERRABLE);
if (MACHINE_HAS_TOPOLOGY) if (MACHINE_HAS_TOPOLOGY)
set_topology_timer(); set_topology_timer();
else else
topology_update_polarization_simple(); topology_update_polarization_simple();
register_sysctl_table(topology_dir_table); register_sysctl_table(topology_dir_table);
return device_create_file(cpu_subsys.dev_root, &dev_attr_dispatching);
dev_root = bus_get_dev_root(&cpu_subsys);
if (dev_root) {
rc = device_create_file(dev_root, &dev_attr_dispatching);
put_device(dev_root);
}
return rc;
} }
device_initcall(topology_init); device_initcall(topology_init);