nvme: fix async event trace event

Mixing AER Event Type and Event Info has masking clashes. Just print the
event type, but also include the event info of the AER result in the
trace.

Fixes: 09bd1ff4b15143b ("nvme-core: add async event trace helper")
Reported-by: Nate Thornton <[e-mail]>
Reviewed-by: Sagi Grimberg <[e-mail]>
Reviewed-by: Minwoo Im <[e-mail]>
Reviewed-by: Chaitanya Kulkarni <[e-mail]>
Signed-off-by: Keith Busch <[e-mail]>
Signed-off-by: Christoph Hellwig <[e-mail]>

drivers/nvme/host/core.c

···
 	u32 aer_notice_type = nvme_aer_subtype(result);
 	bool requeue = true;
 
-	trace_nvme_async_event(ctrl, aer_notice_type);
-
 	switch (aer_notice_type) {
 	case NVME_AER_NOTICE_NS_CHANGED:
 		set_bit(NVME_AER_NOTICE_NS_CHANGED, &ctrl->events);
···
 
 static void nvme_handle_aer_persistent_error(struct nvme_ctrl *ctrl)
 {
-	trace_nvme_async_event(ctrl, NVME_AER_ERROR);
 	dev_warn(ctrl->device, "resetting controller due to AER\n");
 	nvme_reset_ctrl(ctrl);
 }
···
 	if (le16_to_cpu(status) >> 1 != NVME_SC_SUCCESS)
 		return;
 
+	trace_nvme_async_event(ctrl, result);
 	switch (aer_type) {
 	case NVME_AER_NOTICE:
 		requeue = nvme_handle_aen_notice(ctrl, result);
···
 	case NVME_AER_SMART:
 	case NVME_AER_CSS:
 	case NVME_AER_VS:
-		trace_nvme_async_event(ctrl, aer_type);
 		ctrl->aen_result = result;
 		break;
 	default:

drivers/nvme/host/trace.h

···
 	),
 	TP_printk("nvme%d: NVME_AEN=%#08x [%s]",
 		__entry->ctrl_id, __entry->result,
-		__print_symbolic(__entry->result,
-		aer_name(NVME_AER_NOTICE_NS_CHANGED),
-		aer_name(NVME_AER_NOTICE_ANA),
-		aer_name(NVME_AER_NOTICE_FW_ACT_STARTING),
-		aer_name(NVME_AER_NOTICE_DISC_CHANGED),
-		aer_name(NVME_AER_ERROR),
-		aer_name(NVME_AER_SMART),
-		aer_name(NVME_AER_CSS),
-		aer_name(NVME_AER_VS))
+		__print_symbolic(__entry->result & 0x7,
+			aer_name(NVME_AER_ERROR),
+			aer_name(NVME_AER_SMART),
+			aer_name(NVME_AER_NOTICE),
+			aer_name(NVME_AER_CSS),
+			aer_name(NVME_AER_VS))
 	)
 );