From 1a0e62a49ad417712cfa79a395f6c39f67aadb44 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sat, 12 Mar 2011 13:47:18 +0100 Subject: [PATCH] x86: ioapic: Avoid redundant lookup of irq_cfg The caller of ioapic_register_intr() has a pointer to the irq_cfg for the irq already. Hand it in to avoid a full lookup. In msi_compose_msg() the pointer to irq_cfg is already available. No need to look it up again. Signed-off-by: Thomas Gleixner --- arch/x86/kernel/apic/io_apic.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c index e9d4b963ba0..4b5ebd26f56 100644 --- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -1240,7 +1240,8 @@ static inline int IO_APIC_irq_trigger(int irq) } #endif -static void ioapic_register_intr(unsigned int irq, unsigned long trigger) +static void ioapic_register_intr(unsigned int irq, struct irq_cfg *cfg, + unsigned long trigger) { struct irq_chip *chip = &ioapic_chip; irq_flow_handler_t hdl; @@ -1255,7 +1256,7 @@ static void ioapic_register_intr(unsigned int irq, unsigned long trigger) fasteoi = false; } - if (irq_remapped(irq_get_chip_data(irq))) { + if (irq_remapped(cfg)) { irq_set_status_flags(irq, IRQ_MOVE_PCNTXT); chip = &ir_ioapic_chip; fasteoi = trigger != 0; @@ -1361,7 +1362,7 @@ static void setup_ioapic_irq(int apic_id, int pin, unsigned int irq, return; } - ioapic_register_intr(irq, trigger); + ioapic_register_intr(irq, cfg, trigger); if (irq < legacy_pic->nr_legacy_irqs) legacy_pic->mask(irq); @@ -3088,7 +3089,7 @@ static int msi_compose_msg(struct pci_dev *pdev, unsigned int irq, dest = apic->cpu_mask_to_apicid_and(cfg->domain, apic->target_cpus()); - if (irq_remapped(irq_get_chip_data(irq))) { + if (irq_remapped(cfg)) { struct irte irte; int ir_index; u16 sub_handle; -- 2.43.2