[tip:irq/core] x86/vector: Create named irq domain

[tip-bot for Thomas Gleixner]

Commit-ID:  9d35f859590efa48be51b8ccded6550e0440e2c7
Gitweb:     http://git.kernel.org/tip/9d35f859590efa48be51b8ccded6550e0440e2c7
Author:     Thomas Gleixner <tglx@xxxxxxxxxxxxx>
AuthorDate: Tue, 20 Jun 2017 01:37:06 +0200
Committer:  Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Thu, 22 Jun 2017 18:21:08 +0200

x86/vector: Create named irq domain

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

Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Jens Axboe <axboe@xxxxxxxxx>
Cc: Marc Zyngier <marc.zyngier@xxxxxxx>
Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Cc: Keith Busch <keith.busch@xxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxx>
Link: http://lkml.kernel.org/r/20170619235443.673635238@xxxxxxxxxxxxx
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>

---
 arch/x86/kernel/apic/vector.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c
index 6b21b9e..47c5d01 100644
--- a/arch/x86/kernel/apic/vector.c
+++ b/arch/x86/kernel/apic/vector.c
@@ -429,11 +429,16 @@ static void init_legacy_irqs(void) { }
 
 int __init arch_early_irq_init(void)
 {
+	struct fwnode_handle *fn;
+
 	init_legacy_irqs();
 
-	x86_vector_domain = irq_domain_add_tree(NULL, &x86_vector_domain_ops,
-						NULL);
+	fn = irq_domain_alloc_named_fwnode("VECTOR");
+	BUG_ON(!fn);
+	x86_vector_domain = irq_domain_create_tree(fn, &x86_vector_domain_ops,
+						   NULL);
 	BUG_ON(x86_vector_domain == NULL);
+	irq_domain_free_fwnode(fn);
 	irq_set_default_host(x86_vector_domain);
 
 	arch_init_msi_domain(x86_vector_domain);