drm/i915: Use memmove() for punching the hole into infoframes

Replace the hand rolled memmove() with the real thing.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180920185145.1912-9-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index a2dab0b6bde6a6a1034b8dcc76c27e03b1004f27..3b56ab253171d34e30436483d97fb4a3ce99ffa2 100644 (file)
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -457,9 +457,7 @@ static void intel_write_infoframe(struct drm_encoder *encoder,
                return;
 
        /* Insert the 'hole' (see big comment above) at position 3 */
-       buffer[0] = buffer[1];
-       buffer[1] = buffer[2];
-       buffer[2] = buffer[3];
+       memmove(&buffer[0], &buffer[1], 3);
        buffer[3] = 0;
        len++;