To query the fence status, and only the fence status, you only need to
pass .num_fences = 0.
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Petri Latvala <petri.latvala@xxxxxxxxx>
---
lib/sw_sync.c | 13 +++----------
1 file changed, 3 insertions(+), 10 deletions(-)
diff --git a/lib/sw_sync.c b/lib/sw_sync.c
index f20860331..d671923c9 100644
--- a/lib/sw_sync.c
+++ b/lib/sw_sync.c
@@ -206,19 +206,12 @@ int sync_fence_count_status(int fd, int status)
int sync_fence_status(int fence)
{
- struct sync_fence_info fence_info;
- struct sync_file_info file_info = {
- .sync_fence_info = to_user_pointer(&fence_info),
- .num_fences = 1,
- };
+ struct sync_file_info info = { };
- if (ioctl(fence, SYNC_IOC_FILE_INFO, &file_info))
+ if (ioctl(fence, SYNC_IOC_FILE_INFO, &info))
return -errno;
- if (file_info.num_fences != 1)
- return -EINVAL;
-
- return fence_info.status;
+ return info.status;
}
static void modprobe(const char *driver)
--
2.20.1
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