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s390/topology: 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: 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>
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@ -649,12 +649,21 @@ static struct ctl_table topology_dir_table[] = {
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static int __init topology_init(void)
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{
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struct device *dev_root;
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int rc = 0;
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timer_setup(&topology_timer, topology_timer_fn, TIMER_DEFERRABLE);
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if (MACHINE_HAS_TOPOLOGY)
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set_topology_timer();
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else
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topology_update_polarization_simple();
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register_sysctl_table(topology_dir_table);
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return device_create_file(cpu_subsys.dev_root, &dev_attr_dispatching);
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dev_root = bus_get_dev_root(&cpu_subsys);
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if (dev_root) {
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rc = device_create_file(dev_root, &dev_attr_dispatching);
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put_device(dev_root);
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}
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return rc;
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}
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device_initcall(topology_init);
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