Messages in this thread Patch in this message | | | From | Michael Ellerman <> | Subject | [PATCH] x86: Remove never-called arch_setup_msi_irq() | Date | Mon, 19 Jan 2009 17:06:42 +1100 (EST) |
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Since commit 75c46fa, "x64, x2apic/intr-remap: MSI and MSI-X support for interrupt remapping infrastructure", x86 has had an implementation of arch_setup_msi_irqs().
That implementation does not call arch_setup_msi_irq(), instead it calls setup_irq(). No other x86 code calls arch_setup_msi_irq().
That leaves only arch_setup_msi_irqs() in drivers/pci/msi.c, but that routine is overridden by the x86 version of arch_setup_msi_irqs().
So arch_setup_msi_irq() is dead code, remove it.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au> --- arch/x86/kernel/io_apic.c | 34 ---------------------------------- 1 files changed, 0 insertions(+), 34 deletions(-)
diff --git a/arch/x86/kernel/io_apic.c b/arch/x86/kernel/io_apic.c index 1c4a130..9f41c22 100644 --- a/arch/x86/kernel/io_apic.c +++ b/arch/x86/kernel/io_apic.c @@ -3463,40 +3463,6 @@ static int setup_msi_irq(struct pci_dev *dev, struct msi_desc *msidesc, int irq) return 0; } -int arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *msidesc) -{ - unsigned int irq; - int ret; - unsigned int irq_want; - - irq_want = nr_irqs_gsi; - irq = create_irq_nr(irq_want); - if (irq == 0) - return -1; - -#ifdef CONFIG_INTR_REMAP - if (!intr_remapping_enabled) - goto no_ir; - - ret = msi_alloc_irte(dev, irq, 1); - if (ret < 0) - goto error; -no_ir: -#endif - ret = setup_msi_irq(dev, msidesc, irq); - if (ret < 0) { - destroy_irq(irq); - return ret; - } - return 0; - -#ifdef CONFIG_INTR_REMAP -error: - destroy_irq(irq); - return ret; -#endif -} - int arch_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) { unsigned int irq; -- 1.5.5
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