drm/msm: Ratelimit invalid-fence message

[ Upstream commit 7ad48d27a2846bfda29214fb454d001c3e02b9e7 ]

We have seen a couple cases where low memory situations cause something
bad to happen, followed by a flood of these messages obscuring the root
cause.  Lets ratelimit the dmesg spam so that next time it happens we
don't lose the kernel traces leading up to this.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/gpu/drm/msm/msm_fence.c b/drivers/gpu/drm/msm/msm_fence.c
index ad27036..cd59a59 100644 (file)
--- a/drivers/gpu/drm/msm/msm_fence.c
+++ b/drivers/gpu/drm/msm/msm_fence.c
@@ -45,7 +45,7 @@ int msm_wait_fence(struct msm_fence_context *fctx, uint32_t fence,
        int ret;
 
        if (fence > fctx->last_fence) {
-               DRM_ERROR("%s: waiting on invalid fence: %u (of %u)\n",
+               DRM_ERROR_RATELIMITED("%s: waiting on invalid fence: %u (of %u)\n",
                                fctx->name, fence, fctx->last_fence);
                return -EINVAL;
        }