Messages in this thread Patch in this message | | | From | Krzysztof Kozlowski <> | Subject | [PATCH 1/2] dmaengine: fsl-edma: Add lockdep assert for exported function | Date | Thu, 11 Jun 2020 14:17:40 +0200 |
| |
Add lockdep assert for an exported function expected to be called under spin lock. Since this function is called in different modules, the lockdep assert will be self-documenting note about need for locking.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> --- drivers/dma/fsl-edma-common.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/dma/fsl-edma-common.c b/drivers/dma/fsl-edma-common.c index 5697c3622699..4550818cca4a 100644 --- a/drivers/dma/fsl-edma-common.c +++ b/drivers/dma/fsl-edma-common.c @@ -589,6 +589,8 @@ void fsl_edma_xfer_desc(struct fsl_edma_chan *fsl_chan) { struct virt_dma_desc *vdesc; + lockdep_assert_held(&fsl_chan->vchan.lock); + vdesc = vchan_next_desc(&fsl_chan->vchan); if (!vdesc) return; -- 2.7.4
| |