From: Thierry Reding <treding@xxxxxxxxxx>
Provide a way to allocate driver-specific data along with a PCI host
bridge structure. The bridge's ->private field points to this data.
Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
---
drivers/pci/probe.c | 9 ++++++---
include/linux/pci.h | 1 +
2 files changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 93583b389058..ecf543014da3 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -521,16 +521,19 @@ static void pci_release_host_bridge_dev(struct device *dev)
kfree(bridge);
}
-static struct pci_host_bridge *pci_alloc_host_bridge(void)
+static struct pci_host_bridge *pci_alloc_host_bridge(size_t priv)
{
struct pci_host_bridge *bridge;
- bridge = kzalloc(sizeof(*bridge), GFP_KERNEL);
+ bridge = kzalloc(sizeof(*bridge) + priv, GFP_KERNEL);
if (!bridge)
return NULL;
INIT_LIST_HEAD(&bridge->windows);
+ if (priv)
+ bridge->private = &bridge[1];
+
return bridge;
}
@@ -2249,7 +2252,7 @@ static struct pci_bus *pci_create_root_bus_msi(struct device *parent,
int error;
struct pci_host_bridge *bridge;
- bridge = pci_alloc_host_bridge();
+ bridge = pci_alloc_host_bridge(0);
if (!bridge)
return NULL;
diff --git a/include/linux/pci.h b/include/linux/pci.h
index ccf298fad9e7..3aa7240800c8 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -421,6 +421,7 @@ struct pci_host_bridge {
resource_size_t start,
resource_size_t size,
resource_size_t align);
+ void *private;
};
#define to_pci_host_bridge(n) container_of(n, struct pci_host_bridge, dev)
--
2.9.0
--
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
