[igt-dev] [PATCH i-g-t] lib: Silence Valgrind warning in synce_fence_status

[Tvrtko Ursulin]

From: Tvrtko Ursulin <tvrtko.ursulin at intel.com>

Let Valgrind know the ioctl initializes the passed in info block to reduce
the noise while debugging.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
---
 lib/sw_sync.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/lib/sw_sync.c b/lib/sw_sync.c
index f208603312c2..73f3f7015d9d 100644
--- a/lib/sw_sync.c
+++ b/lib/sw_sync.c
@@ -41,6 +41,15 @@
 #include "drmtest.h"
 #include "ioctl_wrappers.h"
 
+#ifdef HAVE_VALGRIND
+#include <valgrind/valgrind.h>
+#include <valgrind/memcheck.h>
+
+#define VG(x) x
+#else
+#define VG(x) do {} while (0)
+#endif
+
 /**
  * SECTION:sw_sync
  * @short_description: Software sync (fencing) support library
@@ -218,6 +227,8 @@ int sync_fence_status(int fence)
 	if (file_info.num_fences != 1)
 		return -EINVAL;
 
+	VG(VALGRIND_MAKE_MEM_DEFINED(&fence_info, sizeof(fence_info)));
+
 	return fence_info.status;
 }
 
-- 
2.20.1