From c7924fb07a2646c9ff661efcad1167a1106d6019 Mon Sep 17 00:00:00 2001 From: Vitaly Kuznetsov Date: Sun, 29 Oct 2017 12:21:07 -0700 Subject: hyper-v: trace vmbus_onversion_response() Add tracepoint to CHANNELMSG_VERSION_RESPONSE handler. Signed-off-by: Vitaly Kuznetsov Signed-off-by: K. Y. Srinivasan Signed-off-by: Greg Kroah-Hartman --- drivers/hv/channel_mgmt.c | 3 +++ drivers/hv/hv_trace.h | 11 +++++++++++ 2 files changed, 14 insertions(+) (limited to 'drivers/hv') diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c index d1cb85257bf0..c33b7412f303 100644 --- a/drivers/hv/channel_mgmt.c +++ b/drivers/hv/channel_mgmt.c @@ -1127,6 +1127,9 @@ static void vmbus_onversion_response( unsigned long flags; version_response = (struct vmbus_channel_version_response *)hdr; + + trace_vmbus_onversion_response(version_response); + spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags); list_for_each_entry(msginfo, &vmbus_connection.chn_msg_list, diff --git a/drivers/hv/hv_trace.h b/drivers/hv/hv_trace.h index 84c08cdf7235..2a046547107f 100644 --- a/drivers/hv/hv_trace.h +++ b/drivers/hv/hv_trace.h @@ -111,6 +111,17 @@ TRACE_EVENT(vmbus_ongpadl_torndown, TP_printk("gpadl 0x%x", __entry->gpadl) ); +TRACE_EVENT(vmbus_onversion_response, + TP_PROTO(const struct vmbus_channel_version_response *response), + TP_ARGS(response), + TP_STRUCT__entry( + __field(u8, ver) + ), + TP_fast_assign(__entry->ver = response->version_supported; + ), + TP_printk("version_supported %d", __entry->ver) + ); + #undef TRACE_INCLUDE_PATH #define TRACE_INCLUDE_PATH . #undef TRACE_INCLUDE_FILE -- cgit v1.2.3