[PATCH v2 1/1] Revert "drm/qxl: simplify qxl_fence_wait"

[Greg KH]

On Thu, Apr 04, 2024 at 07:14:48PM +0100, Alex Constantino wrote:
> This reverts commit 5a838e5d5825c85556011478abde708251cc0776.
> 
> Changes from commit 5a838e5d5825 ("drm/qxl: simplify qxl_fence_wait") would
> result in a '[TTM] Buffer eviction failed' exception whenever it reached a
> timeout.
> Due to a dependency to DMA_FENCE_WARN this also restores some code deleted
> by commit d72277b6c37d ("dma-buf: nuke DMA_FENCE_TRACE macros v2").
> 
> Fixes: 5a838e5d5825 ("drm/qxl: simplify qxl_fence_wait")
> Link: https://lore.kernel.org/regressions/ZTgydqRlK6WX_b29@eldamar.lan/
> Reported-by: Timo Lindfors <timo.lindfors at iki.fi>
> Closes: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1054514
> Signed-off-by: Alex Constantino <dreaming.about.electric.sheep at gmail.com>
> ---
>  drivers/gpu/drm/qxl/qxl_release.c | 50 +++++++++++++++++++++++++++----
>  include/linux/dma-fence.h         |  7 +++++
>  2 files changed, 52 insertions(+), 5 deletions(-)

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