[PATCH 06/39] PCI: add host bridge release support
From: Yinghai Lu <yinghai@kernel.org>
Date: 2012-02-29 23:10:09
Also in:
linux-pci, lkml
Subsystem:
pci subsystem, the rest · Maintainers:
Bjorn Helgaas, Linus Torvalds
We need one hook to release host bridge resource that are created for host bridge. Signed-off-by: Yinghai Lu <yinghai@kernel.org> --- drivers/pci/host-bridge.c | 8 ++++++++ drivers/pci/probe.c | 3 ++- include/linux/pci.h | 5 +++++ 3 files changed, 15 insertions(+), 1 deletions(-)
diff --git a/drivers/pci/host-bridge.c b/drivers/pci/host-bridge.c
index 03d8db1..a710a60 100644
--- a/drivers/pci/host-bridge.c
+++ b/drivers/pci/host-bridge.c@@ -27,6 +27,14 @@ static struct pci_host_bridge *find_pci_host_bridge(struct pci_dev *dev) return to_pci_host_bridge(bus->bridge); } +void pci_set_host_bridge_release(struct pci_host_bridge *bridge, + void (*release_fn)(struct pci_host_bridge *), + void *release_data) +{ + bridge->release_fn = release_fn; + bridge->release_data = release_data; +} + static bool resource_contains(struct resource *res1, struct resource *res2) { return res1->start <= res2->start && res1->end >= res2->end;
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index fb3dd4b..675d7ed 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c@@ -1136,7 +1136,8 @@ static void pci_release_bus_bridge_dev(struct device *dev) { struct pci_host_bridge *bridge = to_pci_host_bridge(dev); - /* TODO: need to free window->res */ + if (bridge->release_fn) + bridge->release_fn(bridge); pci_free_resource_list(&bridge->windows);
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 310610e..d93d3ae 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h@@ -378,9 +378,14 @@ struct pci_host_bridge { struct device dev; struct pci_bus *bus; /* root bus */ struct list_head windows; /* pci_host_bridge_windows */ + void (*release_fn)(struct pci_host_bridge *); + void *release_data; }; #define to_pci_host_bridge(n) container_of(n, struct pci_host_bridge, dev) +void pci_set_host_bridge_release(struct pci_host_bridge *bridge, + void (*release_fn)(struct pci_host_bridge *), + void *release_data); /* * The first PCI_BRIDGE_RESOURCE_NUM PCI bus resources (those that correspond
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1.7.7