* Yuji Shimada <shimada-yxb@xxxxxxxxxxxxxxx>: > Thank you for your review. > > > This patch setups disabled bridges even if buses have already been > added. > > pci_assign_unassigned_resources is called after buses are added. > pci_assign_unassigned_resources calls pci_bus_assign_resources. > pci_bus_assign_resources calls pci_setup_bridge to configure BARs of > bridges. > > Currently pci_setup_bridge returns immediately if the bus have already > been added. So pci_assign_unassigned_resources can't configure BARs of > bridge. > > The patch fixes the issue. > > On logical hot-add, we need to prevent the kernel from re-initializing > bridges that have already been initialized. To achieve this, > pci_setup_bridge returns immediately if the bridge have already been > enabled. > > We don't need to check whether the specified bus is a root bus or not. > pci_setup_bridge is not called on a root bus, because a root bus does > not have a bridge. > > The patch adds a new helper function, pci_is_enabled. I made the > function name similar to pci_is_managed. The codes which use > enable_cnt directly are changed to use pci_is_enabled. > > Thanks, > -- > Yuji Shimada Acked-by: Alex Chiang <achiang@xxxxxx> > Signed-off-by: Yuji Shimada <shimada-yxb@xxxxxxxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
