Staging: hv: rename context to channel in struct hv_device

As it really is a channel, not a "context" name it so.

This also entailed making a few more functions typesafe as they were
sending a struct vmbus_channel pointer as a void pointer.

There are still a few more that need to be converted (the osd callbacks
are one), but this is good for now.

Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

6 files changed, 21 insertions, 21 deletions

diff --git a/drivers/staging/hv/channel_interface.c b/drivers/staging/hv/channel_interface.c
index 5016668aea7..35b700f8612 100644
--- a/drivers/staging/hv/channel_interface.c
+++ b/drivers/staging/hv/channel_interface.c
@@ -31,21 +31,21 @@ static int ivmbus_open(struct hv_device *device, u32 sendbuffer_size,
                              void (*channel_callback)(void *context),
                              void *context)
 {
-        return vmbus_open(device->context, sendbuffer_size,
+        return vmbus_open(device->channel, sendbuffer_size,
                                 recv_ringbuffer_size, userdata, userdatalen,
                                 channel_callback, context);
 }
 
 static void ivmbus_close(struct hv_device *device)
 {
-        vmbus_close(device->context);
+        vmbus_close(device->channel);
 }
 
 static int ivmbus_sendpacket(struct hv_device *device, const void *buffer,
                                    u32 bufferlen, u64 requestid, u32 type,
                                    u32 flags)
 {
-        return vmbus_sendpacket(device->context, buffer, bufferlen,
+        return vmbus_sendpacket(device->channel, buffer, bufferlen,
                                       requestid, type, flags);
 }
 
@@ -54,7 +54,7 @@ static int ivmbus_sendpacket_pagebuffer(struct hv_device *device,
                                 u32 pagecount, void *buffer,
                                 u32 bufferlen, u64 requestid)
 {
-        return vmbus_sendpacket_pagebuffer(device->context, pagebuffers,
+        return vmbus_sendpacket_pagebuffer(device->channel, pagebuffers,
                                                 pagecount, buffer, bufferlen,
                                                 requestid);
 }
@@ -63,7 +63,7 @@ static int ivmbus_sendpacket_multipagebuffer(struct hv_device *device,
                                 struct hv_multipage_buffer *multi_pagebuffer,
                                 void *buffer, u32 bufferlen, u64 requestid)
 {
-        return vmbus_sendpacket_multipagebuffer(device->context,
+        return vmbus_sendpacket_multipagebuffer(device->channel,
                                                      multi_pagebuffer, buffer,
                                                      bufferlen, requestid);
 }
@@ -72,7 +72,7 @@ static int ivmbus_recvpacket(struct hv_device *device, void *buffer,
                                    u32 bufferlen, u32 *buffer_actuallen,
                                    u64 *requestid)
 {
-        return vmbus_recvpacket(device->context, buffer, bufferlen,
+        return vmbus_recvpacket(device->channel, buffer, bufferlen,
                                       buffer_actuallen, requestid);
 }
 
@@ -80,7 +80,7 @@ static int ivmbus_recvpacket_raw(struct hv_device *device, void *buffer,
                                       u32 bufferlen, u32 *buffer_actuallen,
                                       u64 *requestid)
 {
-        return vmbus_recvpacket_raw(device->context, buffer, bufferlen,
+        return vmbus_recvpacket_raw(device->channel, buffer, bufferlen,
                                          buffer_actuallen, requestid);
 }
 
diff --git a/drivers/staging/hv/netvsc.c b/drivers/staging/hv/netvsc.c
index 4c29c31ad3a..1c15f9a1a12 100644
--- a/drivers/staging/hv/netvsc.c
+++ b/drivers/staging/hv/netvsc.c
@@ -240,7 +240,7 @@ static int NetVscInitializeReceiveBufferWithNetVsp(struct hv_device *Device)
          * channel.  Note: This call uses the vmbus connection rather
          * than the channel to establish the gpadl handle.
          */
-        ret = vmbus_establish_gpadl(Device->context, netDevice->ReceiveBuffer,
+        ret = vmbus_establish_gpadl(Device->channel, netDevice->ReceiveBuffer,
                                     netDevice->ReceiveBufferSize,
                                     &netDevice->ReceiveBufferGpadlHandle);
         if (ret != 0) {
@@ -368,7 +368,7 @@ static int NetVscInitializeSendBufferWithNetVsp(struct hv_device *Device)
          * channel.  Note: This call uses the vmbus connection rather
          * than the channel to establish the gpadl handle.
          */
-        ret = vmbus_establish_gpadl(Device->context, netDevice->SendBuffer,
+        ret = vmbus_establish_gpadl(Device->channel, netDevice->SendBuffer,
                                     netDevice->SendBufferSize,
                                     &netDevice->SendBufferGpadlHandle);
         if (ret != 0) {
@@ -467,7 +467,7 @@ static int NetVscDestroyReceiveBuffer(struct netvsc_device *NetDevice)
         if (NetDevice->ReceiveBufferGpadlHandle) {
                 DPRINT_INFO(NETVSC, "Tearing down receive buffer's GPADL...");
 
-                ret = vmbus_teardown_gpadl(NetDevice->Device->context,
+                ret = vmbus_teardown_gpadl(NetDevice->Device->channel,
                                            NetDevice->ReceiveBufferGpadlHandle);
 
                 /* If we failed here, we might as well return and have a leak rather than continue and a bugchk */
@@ -538,7 +538,7 @@ static int NetVscDestroySendBuffer(struct netvsc_device *NetDevice)
         /* Teardown the gpadl on the vsp end */
         if (NetDevice->SendBufferGpadlHandle) {
                 DPRINT_INFO(NETVSC, "Tearing down send buffer's GPADL...");
-                ret = vmbus_teardown_gpadl(NetDevice->Device->context,
+                ret = vmbus_teardown_gpadl(NetDevice->Device->channel,
                                            NetDevice->SendBufferGpadlHandle);
 
                 /*
diff --git a/drivers/staging/hv/vmbus.c b/drivers/staging/hv/vmbus.c
index ffdbd30e3ba..d449daf8197 100644
--- a/drivers/staging/hv/vmbus.c
+++ b/drivers/staging/hv/vmbus.c
@@ -65,12 +65,12 @@ static void VmbusGetChannelOffers(void)
  */
 struct hv_device *VmbusChildDeviceCreate(struct hv_guid *DeviceType,
                                          struct hv_guid *DeviceInstance,
-                                         void *Context)
+                                         struct vmbus_channel *channel)
 {
         struct vmbus_driver *vmbusDriver = (struct vmbus_driver *)gDriver;
 
         return vmbusDriver->OnChildDeviceCreate(DeviceType, DeviceInstance,
-                                                Context);
+                                                channel);
 }
 
 /*
diff --git a/drivers/staging/hv/vmbus_api.h b/drivers/staging/hv/vmbus_api.h
index 55bd00ddb61..17e3c9addc6 100644
--- a/drivers/staging/hv/vmbus_api.h
+++ b/drivers/staging/hv/vmbus_api.h
@@ -152,7 +152,7 @@ struct hv_device {
         /* the device instance id of this device */
         struct hv_guid deviceInstance;
 
-        struct vmbus_channel *context;
+        struct vmbus_channel *channel;
 
         /* Device extension; */
         void *Extension;
@@ -167,7 +167,7 @@ struct vmbus_driver {
         /* Set by the caller */
         struct hv_device * (*OnChildDeviceCreate)(struct hv_guid *DeviceType,
                                                 struct hv_guid *DeviceInstance,
-                                                void *Context);
+                                                struct vmbus_channel *channel);
         void (*OnChildDeviceDestroy)(struct hv_device *device);
         int (*OnChildDeviceAdd)(struct hv_device *RootDevice,
                                 struct hv_device *ChildDevice);
diff --git a/drivers/staging/hv/vmbus_drv.c b/drivers/staging/hv/vmbus_drv.c
index 1e0a1de8261..92ba95c7c6d 100644
--- a/drivers/staging/hv/vmbus_drv.c
+++ b/drivers/staging/hv/vmbus_drv.c
@@ -71,7 +71,7 @@ static void vmbus_bus_release(struct device *device);
 
 static struct hv_device *vmbus_child_device_create(struct hv_guid *type,
                                                    struct hv_guid *instance,
-                                                   void *context);
+                                                   struct vmbus_channel *channel);
 static void vmbus_child_device_destroy(struct hv_device *device_obj);
 static int vmbus_child_device_register(struct hv_device *root_device_obj,
                                        struct hv_device *child_device_obj);
@@ -134,10 +134,10 @@ static void get_channel_info(struct hv_device *device,
 {
         struct vmbus_channel_debug_info debug_info;
 
-        if (!device->context)
+        if (!device->channel)
                 return;
 
-        vmbus_get_debug_info(device->context, &debug_info);
+        vmbus_get_debug_info(device->channel, &debug_info);
 
         info->ChannelId = debug_info.RelId;
         info->ChannelState = debug_info.State;
@@ -508,7 +508,7 @@ EXPORT_SYMBOL(vmbus_get_interface);
  */
 static struct hv_device *vmbus_child_device_create(struct hv_guid *type,
                                                    struct hv_guid *instance,
-                                                   void *context)
+                                                   struct vmbus_channel *channel)
 {
         struct vm_device *child_device_ctx;
         struct hv_device *child_device_obj;
@@ -541,7 +541,7 @@ static struct hv_device *vmbus_child_device_create(struct hv_guid *type,
                 instance->data[14], instance->data[15]);
 
         child_device_obj = &child_device_ctx->device_obj;
-        child_device_obj->context = context;
+        child_device_obj->channel = channel;
         memcpy(&child_device_obj->deviceType, type, sizeof(struct hv_guid));
         memcpy(&child_device_obj->deviceInstance, instance,
                sizeof(struct hv_guid));
diff --git a/drivers/staging/hv/vmbus_private.h b/drivers/staging/hv/vmbus_private.h
index 7bdb29ac895..09eaec964b3 100644
--- a/drivers/staging/hv/vmbus_private.h
+++ b/drivers/staging/hv/vmbus_private.h
@@ -104,7 +104,7 @@ extern struct VMBUS_CONNECTION gVmbusConnection;
 
 struct hv_device *VmbusChildDeviceCreate(struct hv_guid *deviceType,
                                          struct hv_guid *deviceInstance,
-                                         void *context);
+                                         struct vmbus_channel *channel);
 
 int VmbusChildDeviceAdd(struct hv_device *Device);