forked from Minki/linux
Staging: hv: Get rid of the forward declaration for vmbus_probe
Get rid of the forward declaration of vmbus_probe by moving the code around. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Mike Sterling <mike.sterling@microsoft.com> Signed-off-by: Abhishek Kane <v-abkane@microsoft.com> Signed-off-by: Hank Janssen <hjanssen@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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@ -47,7 +47,6 @@ struct hv_bus {
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struct tasklet_struct event_dpc;
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};
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static int vmbus_probe(struct device *device);
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static int vmbus_remove(struct device *device);
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static void vmbus_shutdown(struct device *device);
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@ -196,6 +195,59 @@ static int vmbus_match(struct device *device, struct device_driver *driver)
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return match;
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}
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/*
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* vmbus_probe_failed_cb - Callback when a driver probe failed in vmbus_probe()
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*
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* We need a callback because we cannot invoked device_unregister() inside
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* vmbus_probe() since vmbus_probe() may be invoked inside device_register()
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* i.e. we cannot call device_unregister() inside device_register()
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*/
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static void vmbus_probe_failed_cb(struct work_struct *context)
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{
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struct hv_device *device_ctx = (struct hv_device *)context;
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/*
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* Kick off the process of unregistering the device.
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* This will call vmbus_remove() and eventually vmbus_device_release()
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*/
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device_unregister(&device_ctx->device);
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/* put_device(&device_ctx->device); */
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}
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/*
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* vmbus_probe - Add the new vmbus's child device
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*/
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static int vmbus_probe(struct device *child_device)
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{
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int ret = 0;
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struct hv_driver *drv =
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drv_to_hv_drv(child_device->driver);
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struct hv_device *dev = device_to_hv_device(child_device);
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/* Let the specific open-source driver handles the probe if it can */
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if (drv->driver.probe) {
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ret = dev->probe_error =
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drv->driver.probe(child_device);
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if (ret != 0) {
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DPRINT_ERR(VMBUS_DRV, "probe() failed for device %s "
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"(%p) on driver %s (%d)...",
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dev_name(child_device), child_device,
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child_device->driver->name, ret);
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INIT_WORK(&dev->probe_failed_work_item,
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vmbus_probe_failed_cb);
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schedule_work(&dev->probe_failed_work_item);
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}
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} else {
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DPRINT_ERR(VMBUS_DRV, "probe() method not set for driver - %s",
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child_device->driver->name);
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ret = -1;
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}
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return ret;
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}
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/* The one and only one */
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static struct hv_bus hv_bus = {
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.bus.name = "vmbus",
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@ -724,59 +776,6 @@ void vmbus_child_device_unregister(struct hv_device *device_obj)
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&device_obj->device);
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}
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/*
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* vmbus_probe_failed_cb - Callback when a driver probe failed in vmbus_probe()
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*
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* We need a callback because we cannot invoked device_unregister() inside
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* vmbus_probe() since vmbus_probe() may be invoked inside device_register()
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* i.e. we cannot call device_unregister() inside device_register()
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*/
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static void vmbus_probe_failed_cb(struct work_struct *context)
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{
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struct hv_device *device_ctx = (struct hv_device *)context;
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/*
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* Kick off the process of unregistering the device.
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* This will call vmbus_remove() and eventually vmbus_device_release()
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*/
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device_unregister(&device_ctx->device);
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/* put_device(&device_ctx->device); */
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}
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/*
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* vmbus_probe - Add the new vmbus's child device
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*/
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static int vmbus_probe(struct device *child_device)
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{
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int ret = 0;
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struct hv_driver *drv =
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drv_to_hv_drv(child_device->driver);
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struct hv_device *dev = device_to_hv_device(child_device);
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/* Let the specific open-source driver handles the probe if it can */
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if (drv->driver.probe) {
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ret = dev->probe_error =
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drv->driver.probe(child_device);
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if (ret != 0) {
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DPRINT_ERR(VMBUS_DRV, "probe() failed for device %s "
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"(%p) on driver %s (%d)...",
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dev_name(child_device), child_device,
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child_device->driver->name, ret);
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INIT_WORK(&dev->probe_failed_work_item,
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vmbus_probe_failed_cb);
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schedule_work(&dev->probe_failed_work_item);
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}
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} else {
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DPRINT_ERR(VMBUS_DRV, "probe() method not set for driver - %s",
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child_device->driver->name);
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ret = -1;
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}
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return ret;
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}
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/*
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* vmbus_remove - Remove a vmbus device
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*/
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