diff options
| author | Yinghai Lu <yinghai@kernel.org> | 2012-09-17 22:24:30 -0700 |
|---|---|---|
| committer | Yinghai Lu <yinghai@kernel.org> | 2012-09-17 22:24:30 -0700 |
| commit | 719e863587dbc1acc601d420084059170370579e (patch) | |
| tree | f0e893ff78ce78903d2fb4d341143c7500af025a | |
| parent | 2762c1e232bafb8017cb4e47ac0f003155610a08 (diff) | |
| download | linux-yinghai-719e863587dbc1acc601d420084059170370579e.tar.gz | |
PCI, pciehp: Remove not needed bus number range checking
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>
| -rw-r--r-- | drivers/pci/hotplug-pci.c | 12 |
1 files changed, 1 insertions, 11 deletions
diff --git a/drivers/pci/hotplug-pci.c b/drivers/pci/hotplug-pci.c index 6258dc260d9f5..2221a279f6f40 100644 --- a/drivers/pci/hotplug-pci.c +++ b/drivers/pci/hotplug-pci.c @@ -7,18 +7,8 @@ int __ref pci_hp_add_bridge(struct pci_dev *dev) { struct pci_bus *parent = dev->bus; - int pass, busnr, start = parent->busn_res.start; - int end = parent->busn_res.end; + int pass, busnr = parent->busn_res.start; - for (busnr = start; busnr <= end; busnr++) { - if (!pci_find_bus(pci_domain_nr(parent), busnr)) - break; - } - if (busnr-- > end) { - printk(KERN_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) |