lkml.org 
[lkml]   [2012]   [Feb]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 17/22] PCI, pciehp: Remove not needed bus number range checking
    Date
    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 a4031df..df1f3ed 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


    \
     
     \ /
      Last update: 2012-02-11 05:11    [W:0.022 / U:1.004 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site