This patch implements generic pcie_port_find_service() routine.
Signed-off-by: Oza Pawandeep <poza@xxxxxxxxxxxxxx>
diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c
index 4acec3b..aeb8236 100644
--- a/drivers/pci/pcie/aer/aerdrv_core.c
+++ b/drivers/pci/pcie/aer/aerdrv_core.c
@@ -231,32 +231,6 @@ static bool find_source_device(struct pci_dev *parent,
return true;
}
-static int find_aer_service_iter(struct device *device, void *data)
-{
- struct pcie_port_service_driver *service_driver, **drv;
-
- drv = (struct pcie_port_service_driver **) data;
-
- if (device->bus == &pcie_port_bus_type && device->driver) {
- service_driver = to_service_driver(device->driver);
- if (service_driver->service == PCIE_PORT_SERVICE_AER) {
- *drv = service_driver;
- return 1;
- }
- }
-
- return 0;
-}
-
-struct pcie_port_service_driver *find_aer_service(struct pci_dev *dev)
-{
- struct pcie_port_service_driver *drv = NULL;
-
- device_for_each_child(&dev->dev, &drv, find_aer_service_iter);
-
- return drv;
-}
-
/**
* handle_error_source - handle logging error into an event log
* @aerdev: pointer to pcie_device data structure of the root port
diff --git a/drivers/pci/pcie/err.c b/drivers/pci/pcie/err.c
index c48eb0a..98aeec4 100644
--- a/drivers/pci/pcie/err.c
+++ b/drivers/pci/pcie/err.c
@@ -194,7 +194,7 @@ static pci_ers_result_t reset_link(struct pci_dev *dev)
}
/* Use the aer driver of the component firstly */
- driver = find_aer_service(udev);
+ driver = pcie_port_find_service(udev, PCIE_PORT_SERVICE_AER);
if (driver && driver->reset_link) {
status = driver->reset_link(udev);
diff --git a/drivers/pci/pcie/portdrv.h b/drivers/pci/pcie/portdrv.h
index 9a8d0dd..419bdf3 100644
--- a/drivers/pci/pcie/portdrv.h
+++ b/drivers/pci/pcie/portdrv.h
@@ -79,5 +79,6 @@ static inline void pcie_port_platform_notify(struct pci_dev *port, int *mask)
static inline void pcie_port_platform_notify(struct pci_dev *port, int *mask){}
#endif /* !CONFIG_ACPI */
-struct pcie_port_service_driver *find_aer_service(struct pci_dev *dev);
+struct pcie_port_service_driver *pcie_port_find_service(struct pci_dev *dev,
+ u32 service);
#endif /* _PORTDRV_H_ */
diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c
index ef3bad4..ffc6f4f 100644
--- a/drivers/pci/pcie/portdrv_core.c
+++ b/drivers/pci/pcie/portdrv_core.c
@@ -23,6 +23,11 @@
bool pciehp_msi_disabled;
+struct portdrv_service_data {
+ struct pcie_port_service_driver *drv;
+ u32 service;
+};
+
static int __init pciehp_setup(char *str)
{
if (!strncmp(str, "nomsi", 5))
@@ -414,6 +419,45 @@ static int remove_iter(struct device *dev, void *data)
return 0;
}
+static int find_service_iter(struct device *device, void *data)
+{
+ struct pcie_port_service_driver *service_driver;
+ struct portdrv_service_data *pdrvs;
+ u32 service;
+
+ pdrvs = (struct portdrv_service_data *) data;
+ service = pdrvs->service;
+
+ if (device->bus == &pcie_port_bus_type && device->driver) {
+ service_driver = to_service_driver(device->driver);
+ if (service_driver->service == service) {
+ pdrvs->drv = service_driver;
+ return 1;
+ }
+ }
+
+ return 0;
+}
+/**
+ * pcie_port_find_service - find the service driver
+ * @dev: PCI Express port the service devices associated with
+ * @service: Service to find
+ *
+ * Find PCI Express port service driver associated with given service
+ */
+struct pcie_port_service_driver *pcie_port_find_service(struct pci_dev *dev,
+ u32 service)
+{
+ struct pcie_port_service_driver *drv = NULL;
+ struct portdrv_service_data pdrvs;
+
+ pdrvs.service = service;
+ device_for_each_child(&dev->dev, &pdrvs, find_service_iter);
+
+ drv = pdrvs.drv;
+ return drv;
+}
+
/**
* pcie_port_device_remove - unregister PCI Express port service devices
* @dev: PCI Express port the service devices to unregister are associated with
--
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a Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.
