Messages in this thread Patch in this message | | | From | Yinghai Lu <> | Subject | [PATCH 36/36] PCI, pciehp: Remove not needed bus number range checking | Date | Wed, 29 Feb 2012 19:00:37 -0800 |
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Found hotplug adding one EM with bridge fail, bios only leave one bus range for slot.
[ 1169.621444] pciehp: No bus number available for hot-added bridge 0000:55:00.0 [ 1169.633277] pcieport 0000:40:03.0: PCI bridge to [bus 55-55]
With busn_res tracking and allocating, we don't need that checking anymore.
Parent bridges' bus number will be extended safely.
Signed-off-by: Yinghai Lu <yinghai@kernel.org> --- drivers/pci/hotplug/pciehp_pci.c | 12 +----------- 1 files changed, 1 insertions(+), 11 deletions(-)
diff --git a/drivers/pci/hotplug/pciehp_pci.c b/drivers/pci/hotplug/pciehp_pci.c index 47d9dc0..e21171c 100644 --- a/drivers/pci/hotplug/pciehp_pci.c +++ b/drivers/pci/hotplug/pciehp_pci.c @@ -37,18 +37,8 @@ static int __ref pciehp_add_bridge(struct pci_dev *dev) { struct pci_bus *parent = dev->bus; - int pass, busnr, start = parent->secondary; - int end = parent->subordinate; + int pass, busnr = parent->secondary; - for (busnr = start; busnr <= end; busnr++) { - if (!pci_find_bus(pci_domain_nr(parent), busnr)) - break; - } - if (busnr-- > end) { - err("No bus number available for hot-added bridge %s\n", - pci_name(dev)); - return -1; - } for (pass = 0; pass < 2; pass++) busnr = pci_scan_bridge(parent, dev, busnr, pass); if (!dev->subordinate) -- 1.7.7
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