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

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From ab28176ed8636d47a33183238b3003585b02bafc Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Mon, 25 Jan 2016 14:33:50 -0800
Subject: [PATCH] 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;
}