[Patch Part2 v4 07/33] x86/irq: Kill GENERIC_IRQ_LEGACY_ALLOC_HWIRQ

[Jiang Liu]

There's no user of irq_alloc_hwirqs(), irq_alloc_hwirq(), irq_free_hwirqs()
and irq_free_hwirq() anymore, so kill GENERIC_IRQ_LEGACY_ALLOC_HWIRQ and
related code.

Signed-off-by: Jiang Liu <jiang.liu@xxxxxxxxxxxxxxx>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Cc: Tony Luck <tony.luck@xxxxxxxxx>
Cc: Joerg Roedel <joro@xxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Cc: Rafael J. Wysocki <rjw@xxxxxxxxxxxxx>
Cc: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Cc: Yinghai Lu <yinghai@xxxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
Link: http://lkml.kernel.org/r/1416901802-24211-17-git-send-email-jiang.liu@xxxxxxxxxxxxxxx
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
 arch/x86/Kconfig              |    1 -
 arch/x86/kernel/apic/vector.c |   34 ----------------------------------
 2 files changed, 35 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 89a530a5836e..66513678ad11 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -882,7 +882,6 @@ config X86_UP_IOAPIC
 config X86_LOCAL_APIC
 	def_bool y
 	depends on X86_64 || SMP || X86_32_NON_STANDARD || X86_UP_APIC || PCI_MSI
-	select GENERIC_IRQ_LEGACY_ALLOC_HWIRQ
 	select IRQ_DOMAIN_HIERARCHY
 	select PCI_MSI_IRQ_DOMAIN if PCI_MSI
 
diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c
index 4b8fad9aa685..31dc4a871673 100644
--- a/arch/x86/kernel/apic/vector.c
+++ b/arch/x86/kernel/apic/vector.c
@@ -660,40 +660,6 @@ void irq_force_complete_move(int irq)
 }
 #endif
 
-/*
- * Dynamic irq allocate and deallocation. Should be replaced by irq domains!
- */
-int arch_setup_hwirq(unsigned int irq, int node)
-{
-	struct irq_cfg *cfg;
-	unsigned long flags;
-	int ret;
-
-	cfg = alloc_irq_cfg(node);
-	if (!cfg)
-		return -ENOMEM;
-
-	raw_spin_lock_irqsave(&vector_lock, flags);
-	ret = __assign_irq_vector(irq, cfg, apic->target_cpus());
-	raw_spin_unlock_irqrestore(&vector_lock, flags);
-
-	if (!ret)
-		irq_set_chip_data(irq, cfg);
-	else
-		free_irq_cfg(cfg);
-	return ret;
-}
-
-void arch_teardown_hwirq(unsigned int irq)
-{
-	struct irq_cfg *cfg = irq_cfg(irq);
-
-	free_remapped_irq(irq);
-	clear_irq_vector(irq, cfg);
-	irq_set_chip_data(irq, NULL);
-	free_irq_cfg(cfg);
-}
-
 static void __init print_APIC_field(int base)
 {
 	int i;
-- 
1.7.10.4

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