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871b569a3e
[ Upstream commit 30e3b4f256b4e366a61658c294f6a21b8626dda7 ] Since commit30fdfb929e("PCI: Add a call to pci_assign_irq() in pci_device_probe()"), the PCI code will call the IRQ mapping function whenever a PCI driver is probed. If these are marked as __init, this causes an oops if a PCI driver is loaded or bound after the kernel has initialised. Fixes:30fdfb929e("PCI: Add a call to pci_assign_irq() in pci_device_probe()") Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Sasha Levin <sashal@kernel.org>
49 lines
1.1 KiB
C
49 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* linux/arch/arm/mach-footbridge/ebsa285-pci.c
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*
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* PCI bios-type initialisation for PCI machines
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*
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* Bits taken from various places.
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*/
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#include <linux/kernel.h>
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#include <linux/pci.h>
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#include <linux/init.h>
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#include <asm/irq.h>
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#include <asm/mach/pci.h>
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#include <asm/mach-types.h>
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static int irqmap_ebsa285[] = { IRQ_IN3, IRQ_IN1, IRQ_IN0, IRQ_PCI };
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static int ebsa285_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
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{
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if (dev->vendor == PCI_VENDOR_ID_CONTAQ &&
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dev->device == PCI_DEVICE_ID_CONTAQ_82C693)
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switch (PCI_FUNC(dev->devfn)) {
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case 1: return 14;
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case 2: return 15;
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case 3: return 12;
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}
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return irqmap_ebsa285[(slot + pin) & 3];
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}
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static struct hw_pci ebsa285_pci __initdata = {
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.map_irq = ebsa285_map_irq,
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.nr_controllers = 1,
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.ops = &dc21285_ops,
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.setup = dc21285_setup,
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.preinit = dc21285_preinit,
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.postinit = dc21285_postinit,
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};
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static int __init ebsa285_init_pci(void)
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{
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if (machine_is_ebsa285())
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pci_common_init(&ebsa285_pci);
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return 0;
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}
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subsys_initcall(ebsa285_init_pci);
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