openwrtv4/target/linux/brcm2708/patches-4.4/0198-drm-vc4-Drop-error-message-on-seqno-wait-timeouts.patch

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From ed499ca6841fc64d564d100cb31b30aba9b4d40f Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Mon, 25 Jan 2016 14:33:50 -0800
Subject: [PATCH 198/304] drm/vc4: Drop error message on seqno wait timeouts.
These ioctls end up getting exposed to userspace, and having normal
user requests print DRM errors is obviously wrong. The message was
originally to give us some idea of what happened when a hang occurred,
but we have a DRM_INFO from reset for that.
Signed-off-by: Eric Anholt <eric@anholt.net>
---
drivers/gpu/drm/vc4/vc4_gem.c | 3 ---
1 file changed, 3 deletions(-)
--- a/drivers/gpu/drm/vc4/vc4_gem.c
+++ b/drivers/gpu/drm/vc4/vc4_gem.c
@@ -352,9 +352,6 @@ vc4_wait_for_seqno(struct drm_device *de
finish_wait(&vc4->job_wait_queue, &wait);
trace_vc4_wait_for_seqno_end(dev, seqno);
- if (ret && ret != -ERESTARTSYS)
- DRM_ERROR("timeout waiting for render thread idle\n");
-
return ret;
}