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[PATCH 3/3] hw/display/qxl.c: Use trace_event_get_state_backends()
From: |
Peter Maydell |
Subject: |
[PATCH 3/3] hw/display/qxl.c: Use trace_event_get_state_backends() |
Date: |
Mon, 20 Jan 2020 15:11:42 +0000 |
The preferred way to test whether a trace event is enabled is to
use trace_event_get_state_backends(), because this will give the
correct answer (allowing expensive computations to be skipped)
whether the trace event is compile-time or run-time disabled.
Convert the old-style direct use of TRACE_FOO_ENABLED.
Signed-off-by: Peter Maydell <address@hidden>
---
hw/display/qxl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/display/qxl.c b/hw/display/qxl.c
index 6d43b7433cf..80a4dcc40e4 100644
--- a/hw/display/qxl.c
+++ b/hw/display/qxl.c
@@ -1764,7 +1764,7 @@ async_common:
qxl_set_mode(d, val, 0);
break;
case QXL_IO_LOG:
- if (TRACE_QXL_IO_LOG_ENABLED || d->guestdebug) {
+ if (trace_event_get_state_backends(TRACE_QXL_IO_LOG) || d->guestdebug)
{
/* We cannot trust the guest to NUL terminate d->ram->log_buf */
char *log_buf = g_strndup((const char *)d->ram->log_buf,
sizeof(d->ram->log_buf));
--
2.20.1