commit 867aae6ebe593db73fb8a676475ee20227292cfe Author: Bjorn Helgaas <bhelgaas@google.com> Date: Tue May 15 17:01:09 2012 -0600 x86/PCI: only check for spinlock being held in SMP kernels spin_is_locked() is always false on UP kernels: spin_lock_irqsave() does no locking, so we can't tell whether the lock is held or not. Therefore, this warning is only valid for SMP kernels. CC: Myron Stowe <myron.stowe@redhat.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c index 831971e..dd8ca6f 100644 --- a/arch/x86/pci/i386.c +++ b/arch/x86/pci/i386.c @@ -57,7 +57,7 @@ static struct pcibios_fwaddrmap *pcibios_fwaddrmap_lookup(struct pci_dev *dev) { struct pcibios_fwaddrmap *map; - WARN_ON(!spin_is_locked(&pcibios_fwaddrmap_lock)); + WARN_ON_SMP(!spin_is_locked(&pcibios_fwaddrmap_lock)); list_for_each_entry(map, &pcibios_fwaddrmappings, list) if (map->dev == dev)