Messages in this thread Patch in this message | | | From | Arvind Yadav <> | Subject | [PATCH RFC] dma-buf: To check DMA_FENCE_FLAG_ENABLE_SIGNAL_BIT status on debug | Date | Thu, 4 Aug 2022 17:49:38 +0530 |
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If core DMA-buf framework forgets to call dma_fence_enable_signaling() before calling the dma_fence_is_signaled(). To handle this scenario on debug kernel the DMA_FENCE_FLAG_ENABLE_SIGNAL_BIT needs to be checked before checking the actual signaling status.
Signed-off-by: Arvind Yadav <Arvind.Yadav@amd.com> --- include/linux/dma-fence.h | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/include/linux/dma-fence.h b/include/linux/dma-fence.h index 775cdc0b4f24..7c95c8d5e5f5 100644 --- a/include/linux/dma-fence.h +++ b/include/linux/dma-fence.h @@ -428,6 +428,10 @@ dma_fence_is_signaled_locked(struct dma_fence *fence) static inline bool dma_fence_is_signaled(struct dma_fence *fence) { +#ifdef CONFIG_DEBUG_FS + if (test_bit(DMA_FENCE_FLAG_ENABLE_SIGNAL_BIT, &fence->flags)) + return true; +#endif if (test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags)) return true; -- 2.25.1
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