dmaengine: idxd: set DMA_INTERRUPT cap bit

[ Upstream commit 4e5a4eb20393b851590b4465f1197a8041c2076b ]

Even though idxd driver has always supported interrupt, it never actually
set the DMA_INTERRUPT cap bit. Rectify this mistake so the interrupt
capability is advertised.

Reported-by: Ben Walker <benjamin.walker@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/164971497859.2201379.17925303210723708961.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/dma/idxd/dma.c b/drivers/dma/idxd/dma.c
index c39e948..acb5681 100644 (file)
--- a/drivers/dma/idxd/dma.c
+++ b/drivers/dma/idxd/dma.c
@@ -181,6 +181,7 @@ int idxd_register_dma_device(struct idxd_device *idxd)
        INIT_LIST_HEAD(&dma->channels);
        dma->dev = dev;
 
+       dma_cap_set(DMA_INTERRUPT, dma->cap_mask);
        dma_cap_set(DMA_PRIVATE, dma->cap_mask);
        dma_cap_set(DMA_COMPLETION_NO_ORDER, dma->cap_mask);
        dma->device_release = idxd_dma_release;