x86/htirq: Create named domain

Use the fwnode to create a named domain so diagnosis works.

Mark the init function __init while at it.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Keith Busch <keith.busch@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Christoph Hellwig <hch@lst.de>
Link: http://lkml.kernel.org/r/20170619235443.829047007@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/arch/x86/kernel/apic/htirq.c b/arch/x86/kernel/apic/htirq.c
index ae50d3454d7874e98f1e71e3402fb786dacb67c7..56ccf9346b08ac4bf3e54e7994074b6c04fb02e8 100644 (file)
--- a/arch/x86/kernel/apic/htirq.c
+++ b/arch/x86/kernel/apic/htirq.c
@@ -150,16 +150,27 @@ static const struct irq_domain_ops htirq_domain_ops = {
        .deactivate     = htirq_domain_deactivate,
 };
 
-void arch_init_htirq_domain(struct irq_domain *parent)
+void __init arch_init_htirq_domain(struct irq_domain *parent)
 {
+       struct fwnode_handle *fn;
+
        if (disable_apic)
                return;
 
-       htirq_domain = irq_domain_add_tree(NULL, &htirq_domain_ops, NULL);
+       fn = irq_domain_alloc_named_fwnode("PCI-HT");
+       if (!fn)
+               goto warn;
+
+       htirq_domain = irq_domain_create_tree(fn, &htirq_domain_ops, NULL);
+       irq_domain_free_fwnode(fn);
        if (!htirq_domain)
-               pr_warn("failed to initialize irqdomain for HTIRQ.\n");
-       else
-               htirq_domain->parent = parent;
+               goto warn;
+
+       htirq_domain->parent = parent;
+       return;
+
+warn:
+       pr_warn("Failed to initialize irqdomain for HTIRQ.\n");
 }
 
 int arch_setup_ht_irq(int idx, int pos, struct pci_dev *dev,