hyper-v: trace vmbus_on_msg_dpc()

obj-$(CONFIG_HYPERV_UTILS)	+= hv_utils.o

obj-$(CONFIG_HYPERV_BALLOON)	+= hv_balloon.o

CFLAGS_hv_trace.o = -I$(src)

hv_vmbus-y := vmbus_drv.o \

		 hv.o connection.o channel.o \

		 channel_mgmt.o ring_buffer.o

		 channel_mgmt.o ring_buffer.o hv_trace.o

hv_utils-y := hv_util.o hv_kvp.o hv_snapshot.o hv_fcopy.o hv_utils_transport.o

#include "hyperv_vmbus.h"

#define CREATE_TRACE_POINTS

#include "hv_trace.h"

#undef TRACE_SYSTEM

#define TRACE_SYSTEM hyperv

#if !defined(_HV_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)

#define _HV_TRACE_H

#include <linux/tracepoint.h>

DECLARE_EVENT_CLASS(vmbus_hdr_msg,

	TP_PROTO(const struct vmbus_channel_message_header *hdr),

	TP_ARGS(hdr),

	TP_STRUCT__entry(__field(unsigned int, msgtype)),

	TP_fast_assign(__entry->msgtype = hdr->msgtype;),

	TP_printk("msgtype=%u", __entry->msgtype)

);

DEFINE_EVENT(vmbus_hdr_msg, vmbus_on_msg_dpc,

	TP_PROTO(const struct vmbus_channel_message_header *hdr),

	TP_ARGS(hdr)

);

#undef TRACE_INCLUDE_PATH

#define TRACE_INCLUDE_PATH .

#undef TRACE_INCLUDE_FILE

#define TRACE_INCLUDE_FILE hv_trace

#endif /* _HV_TRACE_H */

/* This part must be outside protection */

#include <trace/define_trace.h>

#include <linux/hyperv.h>

#include <linux/interrupt.h>

#include "hv_trace.h"

/*

 * Timeout for services such as KVP and fcopy.

 */

	hdr = (struct vmbus_channel_message_header *)msg->u.payload;

	trace_vmbus_on_msg_dpc(hdr);

	if (hdr->msgtype >= CHANNELMSG_COUNT) {

		WARN_ONCE(1, "unknown msgtype=%d\n", hdr->msgtype);

		goto msg_handled;