From: Paul Mackerras Date: Thu, 18 Aug 2005 04:33:01 +0000 (+1000) Subject: [PATCH] PCI: Add pci_walk_bus function to PCI core (nonrecursive) X-Git-Tag: v2.6.14-rc1~492^2~20^2~2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cecf4864cf52a4a243a62b2856a6a155edbb55e8;p=pandora-kernel.git [PATCH] PCI: Add pci_walk_bus function to PCI core (nonrecursive) The PCI error recovery infrastructure needs to be able to contact all the drivers affected by a PCI error event, which may mean traversing all the devices under a given PCI-PCI bridge. This patch adds a function to the PCI core that traverses all the PCI devices on a PCI bus and under any PCI-PCI bridges on that bus (and so on), calling a given function for each device. This provides a way for the error recovery code to iterate through all devices that are affected by an error event. This version is not implemented as a recursive function. Instead, when we reach a PCI-PCI bridge, we set the pointers to start doing the devices on the bus under the bridge, and when we reach the end of a bus's devices, we use the bus->self pointer to go back up to the next higher bus and continue doing its devices. Signed-off-by: Paul Mackerras Signed-off-by: Greg Kroah-Hartman --- Reading git-diff-tree failed