Messages in this thread Patch in this message | | | From | Yijing Wang <> | Subject | [PATCH v8 08/30] PCI: Update pci_host_bridge bus resource | Date | Tue, 24 Mar 2015 11:34:02 +0800 |
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From: Yijing Wang <wangyijing0307@gmail.com>
Sometimes, the bus resource start number is not equal to root bus number. For example, in pci_scan_bus(), we always add the default bus resource which start bus number is 0, but the root bus number callers given may != 0, so we need to update pci_host_bridge bus resource, because we would check whether host bridge bus resoruce is confict in later patch.
Signed-off-by: Yijing Wang <wangyijing@huawei.com> --- drivers/pci/host-bridge.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/drivers/pci/host-bridge.c b/drivers/pci/host-bridge.c index ecc1a7c..1a9834b 100644 --- a/drivers/pci/host-bridge.c +++ b/drivers/pci/host-bridge.c @@ -26,8 +26,11 @@ static void pci_host_update_busn_res( struct resource_entry *window; resource_list_for_each_entry(window, resources) - if (window->res->flags & IORESOURCE_BUS) + if (window->res->flags & IORESOURCE_BUS) { + if (bus > window->res->start) + window->res->start = bus; return; + } pr_info( "No busn resource found for pci%04x:%02x, will use [bus %02x-ff]\n", -- 1.7.1
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