[PATCH v4 1/2] PCI: Expose devm_pci_alloc_host_bridge_release()

[Bjorn Helgaas <helgaas@kernel.org>]

devm_pci_alloc_host_bridge() allocates a struct pci_host_bridge and also
parses device tree resources and claims them.  There are drivers, e.g.,
pcie-iproc-bcma.c, that need to allocate a pci_host_bridge but do not need
device tree resources.

Expose devm_pci_alloc_host_bridge_release() so they can avoid the device
tree parts by calling pci_alloc_host_bridge() directly and adding the devm
release function manually.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 drivers/pci/pci.h   | 1 +
 drivers/pci/probe.c | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index ba3c3fddddc2..5e21cd29cc7c 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -502,6 +502,7 @@ enum pci_bar_type {
 	pci_bar_mem64,		/* A 64-bit memory BAR */
 };
 
+void devm_pci_alloc_host_bridge_release(void *data);
 struct device *pci_get_host_bridge_device(struct pci_dev *dev);
 void pci_put_host_bridge_device(struct device *dev);
 
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 27008e2ea5af..e214da95ca94 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -696,7 +696,7 @@ struct pci_host_bridge *pci_alloc_host_bridge(size_t priv)
 }
 EXPORT_SYMBOL(pci_alloc_host_bridge);
 
-static void devm_pci_alloc_host_bridge_release(void *data)
+void devm_pci_alloc_host_bridge_release(void *data)
 {
 	pci_free_host_bridge(data);
 }
-- 
2.53.0