Merge tag 'dmaengine-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine

Pull dmaengine updates from Vinod Koul:

 - Big pile of __counted_by attribute annotations to several structures
   for bounds checking of flexible arrays at run-time

 - Another big pile platform remove callback returning void changes

 - Device tree device_get_match_data() usage and dropping
   of_match_device() calls

 - Minor driver updates to pxa, idxd fsl, hisi etc drivers

* tag 'dmaengine-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (106 commits)
  dmaengine: stm32-mdma: correct desc prep when channel running
  dmaengine: dw-axi-dmac: Add support DMAX_NUM_CHANNELS > 16
  dmaengine: xilinx: xilinx_dma: Fix kernel doc about xilinx_dma_remove()
  dmaengine: mmp_tdma: drop unused variable 'of_id'
  MAINTAINERS: Add entries for NXP(Freescale) eDMA drivers
  dmaengine: xilinx: xdma: Support cyclic transfers
  dmaengine: xilinx: xdma: Prepare the introduction of cyclic transfers
  dmaengine: Drop unnecessary of_match_device() calls
  dmaengine: Use device_get_match_data()
  dmaengine: pxa_dma: Annotate struct pxad_desc_sw with __counted_by
  dmaengine: pxa_dma: Remove an erroneous BUG_ON() in pxad_free_desc()
  dmaengine: xilinx: xdma: Use resource_size() in xdma_probe()
  dmaengine: fsl-dpaa2-qdma: Remove redundant initialization owner in dpaa2_qdma_driver
  dmaengine: Remove unused declaration dma_chan_cleanup()
  dmaengine: mmp: fix Wvoid-pointer-to-enum-cast warning
  dmaengine: qcom: fix Wvoid-pointer-to-enum-cast warning
  dmaengine: fsl-edma: Remove redundant dev_err() for platform_get_irq()
  dmaengine: ep93xx_dma: Annotate struct ep93xx_dma_engine with __counted_by
  dmaengine: idxd: add wq driver name support for accel-config user tool
  dmaengine: fsl-edma: Annotate struct struct fsl_edma_engine with __counted_by
  ...

1 files changed, 6 insertions, 7 deletions

diff --git a/drivers/dma/stm32-mdma.c b/drivers/dma/stm32-mdma.c
index bae08b3f55c7..6505081ced44 100644
--- a/drivers/dma/stm32-mdma.c
+++ b/drivers/dma/stm32-mdma.c
@@ -224,7 +224,7 @@ struct stm32_mdma_desc {
 	u32 ccr;
 	bool cyclic;
 	u32 count;
-	struct stm32_mdma_desc_node node[];
+	struct stm32_mdma_desc_node node[] __counted_by(count);
 };
 
 struct stm32_mdma_dma_config {
@@ -256,7 +256,7 @@ struct stm32_mdma_device {
 	u32 nr_ahb_addr_masks;
 	u32 chan_reserved;
 	struct stm32_mdma_chan chan[STM32_MDMA_MAX_CHANNELS];
-	u32 ahb_addr_masks[];
+	u32 ahb_addr_masks[] __counted_by(nr_ahb_addr_masks);
 };
 
 static struct stm32_mdma_device *stm32_mdma_get_dev(
@@ -321,6 +321,7 @@ static struct stm32_mdma_desc *stm32_mdma_alloc_desc(
 	desc = kzalloc(struct_size(desc, node, count), GFP_NOWAIT);
 	if (!desc)
 		return NULL;
+	desc->count = count;
 
 	for (i = 0; i < count; i++) {
 		desc->node[i].hwdesc =
@@ -330,8 +331,6 @@ static struct stm32_mdma_desc *stm32_mdma_alloc_desc(
 			goto err;
 	}
 
-	desc->count = count;
-
 	return desc;
 
 err:
@@ -489,7 +488,7 @@ static int stm32_mdma_set_xfer_param(struct stm32_mdma_chan *chan,
 	src_maxburst = chan->dma_config.src_maxburst;
 	dst_maxburst = chan->dma_config.dst_maxburst;
 
-	ccr = stm32_mdma_read(dmadev, STM32_MDMA_CCR(chan->id));
+	ccr = stm32_mdma_read(dmadev, STM32_MDMA_CCR(chan->id)) & ~STM32_MDMA_CCR_EN;
 	ctcr = stm32_mdma_read(dmadev, STM32_MDMA_CTCR(chan->id));
 	ctbr = stm32_mdma_read(dmadev, STM32_MDMA_CTBR(chan->id));
 
@@ -965,7 +964,7 @@ stm32_mdma_prep_dma_memcpy(struct dma_chan *c, dma_addr_t dest, dma_addr_t src,
 	if (!desc)
 		return NULL;
 
-	ccr = stm32_mdma_read(dmadev, STM32_MDMA_CCR(chan->id));
+	ccr = stm32_mdma_read(dmadev, STM32_MDMA_CCR(chan->id)) & ~STM32_MDMA_CCR_EN;
 	ctcr = stm32_mdma_read(dmadev, STM32_MDMA_CTCR(chan->id));
 	ctbr = stm32_mdma_read(dmadev, STM32_MDMA_CTBR(chan->id));
 	cbndtr = stm32_mdma_read(dmadev, STM32_MDMA_CBNDTR(chan->id));
@@ -1627,13 +1626,13 @@ static int stm32_mdma_probe(struct platform_device *pdev)
 			      GFP_KERNEL);
 	if (!dmadev)
 		return -ENOMEM;
+	dmadev->nr_ahb_addr_masks = count;
 
 	dmadev->nr_channels = nr_channels;
 	dmadev->nr_requests = nr_requests;
 	device_property_read_u32_array(&pdev->dev, "st,ahb-addr-masks",
 				       dmadev->ahb_addr_masks,
 				       count);
-	dmadev->nr_ahb_addr_masks = count;
 
 	dmadev->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(dmadev->base))