[PATCH v4 0/6] dma-buf: Check status of enable-signaling bit on debug

[Arvind Yadav]

Fence signaling must be enabled to make sure that
the dma_fence_is_signaled() function ever returns true.
Since drivers and implementations sometimes mess this up,
this ensures correct behaviour when DEBUG_WW_MUTEX_SLOWPATH
is used during debugging.
This should make any implementation bugs resulting in not
signaled fences much more obvious.

Arvind Yadav (6):
  [PATCH v4 1/6] dma-buf: Remove the signaled bit status check
  [PATCH v4 2/6] dma-buf: set signaling bit for the stub fence
  [PATCH v4 3/6] dma-buf: Enable signaling on fence for selftests
  [PATCH v4 4/6] dma-buf: dma_fence_wait must enable signaling
  [PATCH v4 5/6] drm/sched: Use parent fence instead of finished
  [PATCH v4 6/6] dma-buf: Check status of enable-signaling bit on debug

 drivers/dma-buf/Kconfig                |  7 +++++++
 drivers/dma-buf/dma-fence.c            | 16 ++++++++++------
 drivers/dma-buf/st-dma-fence-chain.c   |  4 ++++
 drivers/dma-buf/st-dma-fence-unwrap.c  | 22 ++++++++++++++++++++++
 drivers/dma-buf/st-dma-fence.c         | 16 ++++++++++++++++
 drivers/dma-buf/st-dma-resv.c          | 10 ++++++++++
 drivers/gpu/drm/scheduler/sched_main.c |  4 ++--
 include/linux/dma-fence.h              |  5 +++++
 8 files changed, 76 insertions(+), 8 deletions(-)

-- 
2.25.1