From 24f8c827f9b8ab2c8644f7ab85a1b1d58fc0fcf7 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Thu, 20 Dec 2007 14:54:56 +1100 Subject: [PATCH] [POWERPC] Updates/fixes to 32 bits pcibios_enable_device() Our implementation of pcibios_enable_device() incorrectly ignores the mask argument and always checks that all resources have been allocated, which isn't the right thing to do anymore. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/pci_32.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c index ce7c20c..12b74fd 100644 --- a/arch/powerpc/kernel/pci_32.c +++ b/arch/powerpc/kernel/pci_32.c @@ -530,10 +530,16 @@ int pcibios_enable_device(struct pci_dev *dev, int mask) pci_read_config_word(dev, PCI_COMMAND, &cmd); old_cmd = cmd; - for (idx=0; idx<6; idx++) { + for (idx = 0; idx < PCI_NUM_RESOURCES; idx++) { + /* Only set up the requested stuff */ + if (!(mask & (1 << idx))) + continue; r = &dev->resource[idx]; + if (!(r->flags & (IORESOURCE_IO | IORESOURCE_MEM))) + continue; if (r->flags & IORESOURCE_UNSET) { - printk(KERN_ERR "PCI: Device %s not available because of resource collisions\n", pci_name(dev)); + printk(KERN_ERR "PCI: Device %s not available because" + " of resource collisions\n", pci_name(dev)); return -EINVAL; } if (r->flags & IORESOURCE_IO) -- 2.7.4