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authorBjorn Helgaas <bhelgaas@google.com>2016-02-17 21:26:33 +0300
committerBjorn Helgaas <bhelgaas@google.com>2016-02-17 21:26:33 +0300
commitfe25d078874f2c29c38f4160467d74f5756537c9 (patch)
treee252e0ed3039c5c4da74100c0152b1de58b95ca2 /arch
parent0cf1337e0b83c16de4e7e98dad3a6afce6043fea (diff)
downloadlinux-fe25d078874f2c29c38f4160467d74f5756537c9.tar.xz
Revert "x86/PCI: Don't alloc pcibios-irq when MSI is enabled"
Revert 8affb487d4a4 ("x86/PCI: Don't alloc pcibios-irq when MSI is enabled"). This is part of reverting 991de2e59090 ("PCI, x86: Implement pcibios_alloc_irq() and pcibios_free_irq()") to fix regressions it introduced. Link: https://bugzilla.kernel.org/show_bug.cgi?id=111211 Fixes: 991de2e59090 ("PCI, x86: Implement pcibios_alloc_irq() and pcibios_free_irq()") Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Rafael J. Wysocki <rafael@kernel.org> CC: Jiang Liu <jiang.liu@linux.intel.com> CC: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/pci/common.c8
1 files changed, 0 insertions, 8 deletions
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 2879efc73a96..cb499c5b6ae5 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -713,14 +713,6 @@ int pcibios_add_device(struct pci_dev *dev)
int pcibios_alloc_irq(struct pci_dev *dev)
{
- /*
- * If the PCI device was already claimed by core code and has
- * MSI enabled, probing of the pcibios IRQ will overwrite
- * dev->irq. So bail out if MSI is already enabled.
- */
- if (pci_dev_msi_enabled(dev))
- return -EBUSY;
-
return pcibios_enable_irq(dev);
}