* [PATCH libdrm] xf86drm: Fix type-punned pointer build warning
@ 2017-01-12 21:48 Thierry Reding
2017-01-16 14:42 ` Emil Velikov
0 siblings, 1 reply; 2+ messages in thread
From: Thierry Reding @ 2017-01-12 21:48 UTC (permalink / raw)
To: dri-devel; +Cc: Emil Velikov
From: Thierry Reding <treding@nvidia.com>
CC libdrm_la-xf86drmMode.lo
../xf86drmMode.c: In function 'drmHandleEvent':
../xf86drmMode.c:854:15: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
e = (struct drm_event *)(&buffer[i]);
^
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
xf86drmMode.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/xf86drmMode.c b/xf86drmMode.c
index 43cdbbd1ede4..c669774f8fc5 100644
--- a/xf86drmMode.c
+++ b/xf86drmMode.c
@@ -901,7 +901,7 @@ int drmHandleEvent(int fd, drmEventContextPtr evctx)
i = 0;
while (i < len) {
- e = (struct drm_event *) &buffer[i];
+ e = (struct drm_event *)(buffer + i);
switch (e->type) {
case DRM_EVENT_VBLANK:
if (evctx->version < 1 ||
--
2.11.0
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^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH libdrm] xf86drm: Fix type-punned pointer build warning
2017-01-12 21:48 [PATCH libdrm] xf86drm: Fix type-punned pointer build warning Thierry Reding
@ 2017-01-16 14:42 ` Emil Velikov
0 siblings, 0 replies; 2+ messages in thread
From: Emil Velikov @ 2017-01-16 14:42 UTC (permalink / raw)
To: Thierry Reding; +Cc: ML dri-devel
On 12 January 2017 at 21:48, Thierry Reding <thierry.reding@gmail.com> wrote:
> From: Thierry Reding <treding@nvidia.com>
>
> CC libdrm_la-xf86drmMode.lo
> ../xf86drmMode.c: In function 'drmHandleEvent':
> ../xf86drmMode.c:854:15: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
> e = (struct drm_event *)(&buffer[i]);
> ^
>
> Signed-off-by: Thierry Reding <treding@nvidia.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99350
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
-Emil
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