hv: delete struct hv_dev_port_info

It's no longer needed, and the struct hv_ring_buffer_debug_info
structure shouldn't be "global" so move it to the local .h file instead.

Tested-by: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/hv/hyperv_vmbus.h

@@ -514,6 +514,13 @@ struct hv_context {
 
 extern struct hv_context hv_context;
 
+struct hv_ring_buffer_debug_info {
+	u32 current_interrupt_mask;
+	u32 current_read_index;
+	u32 current_write_index;
+	u32 bytes_avail_toread;
+	u32 bytes_avail_towrite;
+};
 
 /* Hv Interface */
 

drivers/hv/vmbus_drv.c

@@ -47,8 +47,8 @@ static struct completion probe_event;
 static int irq;
 
 struct hv_device_info {
-	struct hv_dev_port_info inbound;
-	struct hv_dev_port_info outbound;
+	struct hv_ring_buffer_debug_info inbound;
+	struct hv_ring_buffer_debug_info outbound;
 };
 
 static int vmbus_exists(void)
@@ -63,26 +63,11 @@ static int vmbus_exists(void)
 static void get_channel_info(struct hv_device *device,
 			     struct hv_device_info *info)
 {
-	struct hv_ring_buffer_debug_info inbound;
-	struct hv_ring_buffer_debug_info outbound;
-
 	if (!device->channel)
 		return;
 
-	hv_ringbuffer_get_debuginfo(&device->channel->inbound, &inbound);
-	hv_ringbuffer_get_debuginfo(&device->channel->outbound, &outbound);
-
-	info->inbound.int_mask = inbound.current_interrupt_mask;
-	info->inbound.read_idx = inbound.current_read_index;
-	info->inbound.write_idx = inbound.current_write_index;
-	info->inbound.bytes_avail_toread = inbound.bytes_avail_toread;
-	info->inbound.bytes_avail_towrite = inbound.bytes_avail_towrite;
-
-	info->outbound.int_mask = outbound.current_interrupt_mask;
-	info->outbound.read_idx = outbound.current_read_index;
-	info->outbound.write_idx = outbound.current_write_index;
-	info->outbound.bytes_avail_toread = outbound.bytes_avail_toread;
-	info->outbound.bytes_avail_towrite = outbound.bytes_avail_towrite;
+	hv_ringbuffer_get_debuginfo(&device->channel->inbound, &info->inbound);
+	hv_ringbuffer_get_debuginfo(&device->channel->outbound, &info->outbound);
 }
 
 #define VMBUS_ALIAS_LEN ((sizeof((struct hv_vmbus_device_id *)0)->guid) * 2)
@@ -114,11 +99,11 @@ static ssize_t vmbus_show_device_attr(struct device *dev,
 	get_channel_info(hv_dev, device_info);
 
 	if (!strcmp(dev_attr->attr.name, "out_intr_mask")) {
-		ret = sprintf(buf, "%d\n", device_info->outbound.int_mask);
+		ret = sprintf(buf, "%d\n", device_info->outbound.current_interrupt_mask);
 	} else if (!strcmp(dev_attr->attr.name, "out_read_index")) {
-		ret = sprintf(buf, "%d\n", device_info->outbound.read_idx);
+		ret = sprintf(buf, "%d\n", device_info->outbound.current_read_index);
 	} else if (!strcmp(dev_attr->attr.name, "out_write_index")) {
-		ret = sprintf(buf, "%d\n", device_info->outbound.write_idx);
+		ret = sprintf(buf, "%d\n", device_info->outbound.current_write_index);
 	} else if (!strcmp(dev_attr->attr.name, "out_read_bytes_avail")) {
 		ret = sprintf(buf, "%d\n",
 			       device_info->outbound.bytes_avail_toread);
@@ -126,11 +111,11 @@ static ssize_t vmbus_show_device_attr(struct device *dev,
 		ret = sprintf(buf, "%d\n",
 			       device_info->outbound.bytes_avail_towrite);
 	} else if (!strcmp(dev_attr->attr.name, "in_intr_mask")) {
-		ret = sprintf(buf, "%d\n", device_info->inbound.int_mask);
+		ret = sprintf(buf, "%d\n", device_info->inbound.current_interrupt_mask);
 	} else if (!strcmp(dev_attr->attr.name, "in_read_index")) {
-		ret = sprintf(buf, "%d\n", device_info->inbound.read_idx);
+		ret = sprintf(buf, "%d\n", device_info->inbound.current_read_index);
 	} else if (!strcmp(dev_attr->attr.name, "in_write_index")) {
-		ret = sprintf(buf, "%d\n", device_info->inbound.write_idx);
+		ret = sprintf(buf, "%d\n", device_info->inbound.current_write_index);
 	} else if (!strcmp(dev_attr->attr.name, "in_read_bytes_avail")) {
 		ret = sprintf(buf, "%d\n",
 			       device_info->inbound.bytes_avail_toread);

include/linux/hyperv.h

@@ -429,15 +429,6 @@ struct hv_ring_buffer_info {
 	u32 ring_data_startoffset;
 };
 
-struct hv_ring_buffer_debug_info {
-	u32 current_interrupt_mask;
-	u32 current_read_index;
-	u32 current_write_index;
-	u32 bytes_avail_toread;
-	u32 bytes_avail_towrite;
-};
-
-
 /*
  *
  * hv_get_ringbuffer_availbytes()
@@ -1166,14 +1157,6 @@ extern int vmbus_recvpacket_raw(struct vmbus_channel *channel,
 
 extern void vmbus_ontimer(unsigned long data);
 
-struct hv_dev_port_info {
-	u32 int_mask;
-	u32 read_idx;
-	u32 write_idx;
-	u32 bytes_avail_toread;
-	u32 bytes_avail_towrite;
-};
-
 /* Base driver object */
 struct hv_driver {
 	const char *name;