Fix build with libdrm >= 2.4.78

drmEventContext has grown by one pointer, so the build fails with an
error about a member without initialization.

 qeglfskmsgbmdevice.cpp:147:5: error: missing initializer for member ‘_drmEventContext::page_flip_handler2’ [-Werror=missing-field-initializers]

Change-Id: I0e1a09998253489388abfffd14b6014b1ddc90e1
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

2 files changed, 10 insertions, 10 deletions

diff --git a/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms/qeglfskmsgbmdevice.cpp b/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms/qeglfskmsgbmdevice.cpp
index 2040d6bc0e..5f85e4b0b0 100644
--- a/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms/qeglfskmsgbmdevice.cpp
+++ b/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms/qeglfskmsgbmdevice.cpp
@@ -140,11 +140,11 @@ void QEglFSKmsGbmDevice::destroyGlobalCursor()
 
 void QEglFSKmsGbmDevice::handleDrmEvent()
 {
-    drmEventContext drmEvent = {
-        DRM_EVENT_CONTEXT_VERSION,
-        Q_NULLPTR,      // vblank handler
-        pageFlipHandler // page flip handler
-    };
+    drmEventContext drmEvent;
+    memset(&drmEvent, 0, sizeof(drmEvent));
+    drmEvent.version = DRM_EVENT_CONTEXT_VERSION;
+    drmEvent.vblank_handler = nullptr;
+    drmEvent.page_flip_handler = pageFlipHandler;
 
     drmHandleEvent(fd(), &drmEvent);
 }
diff --git a/src/plugins/platforms/linuxfb/qlinuxfbdrmscreen.cpp b/src/plugins/platforms/linuxfb/qlinuxfbdrmscreen.cpp
index 2ca251c4af..c9fbb8281c 100644
--- a/src/plugins/platforms/linuxfb/qlinuxfbdrmscreen.cpp
+++ b/src/plugins/platforms/linuxfb/qlinuxfbdrmscreen.cpp
@@ -312,11 +312,11 @@ void QLinuxFbDevice::swapBuffers(Output *output)
 
     const int fbIdx = output->backFb;
     while (output->backFb == fbIdx) {
-        drmEventContext drmEvent = {
-            DRM_EVENT_CONTEXT_VERSION,
-            nullptr,
-            pageFlipHandler
-        };
+        drmEventContext drmEvent;
+        memset(&drmEvent, 0, sizeof(drmEvent));
+        drmEvent.version = DRM_EVENT_CONTEXT_VERSION;
+        drmEvent.vblank_handler = nullptr;
+        drmEvent.page_flip_handler = pageFlipHandler;
         // Blocks until there is something to read on the drm fd
         // and calls back pageFlipHandler once the flip completes.
         drmHandleEvent(fd(), &drmEvent);