drm/vblank: Fix vblank timestamp debugs

We're currently calling ktime_to_timespec64() on stack garbage
hence the debug output for vblank timestamps also contains garbage.
Let's assing something to the ktime_t first before we go converting
it to a timespec.

While at it micro-optimize the ktime_to_timespec64() calls away
when vblank debugging isn't enabled.

Fixes: 67680d3c0464 ("drm: vblank: use ktime_t instead of timeval")
Cc: Arnd Bergmann <[email protected]>
Cc: Keith Packard <[email protected]>
Cc: Sean Paul <[email protected]>
Cc: Dave Airlie <[email protected]>
Signed-off-by: Ville Syrjälä <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Acked-by: Arnd Bergmann <[email protected]>

0 files changed, 0 insertions, 0 deletions