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

…ernel/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 ...
gwr · Nov 4, 2023 · d934aef · d934aef
2 parents 2c40c1c + 03f25d5
commit d934aef
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diff --git a/Documentation/ABI/stable/sysfs-driver-dma-idxd b/Documentation/ABI/stable/sysfs-driver-dma-idxd
@@ -270,6 +270,12 @@ Description:	Shows the operation capability bits displayed in bitmap format
 		correlates to the operations allowed. It's visible only
 		on platforms that support the capability.
 
+What:		/sys/bus/dsa/devices/wq<m>.<n>/driver_name
+Date:		Sept 8, 2023
+KernelVersion:	6.7.0
+Contact:	[email protected]
+Description:	Name of driver to be bounded to the wq.
+
 What:           /sys/bus/dsa/devices/engine<m>.<n>/group_id
 Date:           Oct 25, 2019
 KernelVersion:  5.6.0

diff --git a/Documentation/devicetree/bindings/dma/qcom,gpi.yaml b/Documentation/devicetree/bindings/dma/qcom,gpi.yaml
@@ -69,6 +69,8 @@ properties:
   dma-channel-mask:
     maxItems: 1
 
+  dma-coherent: true
+
 required:
   - compatible
   - reg

diff --git a/MAINTAINERS b/MAINTAINERS
@@ -8338,6 +8338,14 @@ F:	Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt
 F:	drivers/spi/spi-fsl-dspi.c
 F:	include/linux/spi/spi-fsl-dspi.h
 
+FREESCALE eDMA DRIVER
+M:	Frank Li <[email protected]>
+L:	[email protected]
+L:	[email protected]
+S:	Maintained
+F:	Documentation/devicetree/bindings/dma/fsl,edma.yaml
+F:	drivers/dma/fsl-edma*.*
+
 FREESCALE ENETC ETHERNET DRIVERS
 M:	Claudiu Manoil <[email protected]>
 M:	Vladimir Oltean <[email protected]>

diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
@@ -362,7 +362,7 @@ config INTEL_IOATDMA
 
 config K3_DMA
 	tristate "Hisilicon K3 DMA support"
-	depends on ARCH_HI3xxx || ARCH_HISI || COMPILE_TEST
+	depends on ARCH_HISI || COMPILE_TEST
 	select DMA_ENGINE
 	select DMA_VIRTUAL_CHANNELS
 	help

diff --git a/drivers/dma/altera-msgdma.c b/drivers/dma/altera-msgdma.c
@@ -923,7 +923,7 @@ static int msgdma_probe(struct platform_device *pdev)
  *
  * Return: Always '0'
  */
-static int msgdma_remove(struct platform_device *pdev)
+static void msgdma_remove(struct platform_device *pdev)
 {
 	struct msgdma_device *mdev = platform_get_drvdata(pdev);
 
@@ -933,8 +933,6 @@ static int msgdma_remove(struct platform_device *pdev)
 	msgdma_dev_remove(mdev);
 
 	dev_notice(&pdev->dev, "Altera mSGDMA driver removed\n");
-
-	return 0;
 }
 
 #ifdef CONFIG_OF
@@ -952,7 +950,7 @@ static struct platform_driver msgdma_driver = {
 		.of_match_table = of_match_ptr(msgdma_match),
 	},
 	.probe = msgdma_probe,
-	.remove = msgdma_remove,
+	.remove_new = msgdma_remove,
 };
 
 module_platform_driver(msgdma_driver);

diff --git a/drivers/dma/apple-admac.c b/drivers/dma/apple-admac.c
@@ -128,7 +128,7 @@ struct admac_data {
 	int irq;
 	int irq_index;
 	int nchannels;
-	struct admac_chan channels[];
+	struct admac_chan channels[] __counted_by(nchannels);
 };
 
 struct admac_tx {
@@ -925,16 +925,14 @@ static int admac_probe(struct platform_device *pdev)
 	return err;
 }
 
-static int admac_remove(struct platform_device *pdev)
+static void admac_remove(struct platform_device *pdev)
 {
 	struct admac_data *ad = platform_get_drvdata(pdev);
 
 	of_dma_controller_free(pdev->dev.of_node);
 	dma_async_device_unregister(&ad->dma);
 	free_irq(ad->irq, ad);
 	reset_control_rearm(ad->rstc);
-
-	return 0;
 }
 
 static const struct of_device_id admac_of_match[] = {
@@ -949,7 +947,7 @@ static struct platform_driver apple_admac_driver = {
 		.of_match_table = admac_of_match,
 	},
 	.probe = admac_probe,
-	.remove = admac_remove,
+	.remove_new = admac_remove,
 };
 module_platform_driver(apple_admac_driver);
 

diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
@@ -239,7 +239,7 @@ struct at_desc {
 	bool				memset_buffer;
 	dma_addr_t			memset_paddr;
 	int				*memset_vaddr;
-	struct atdma_sg			sg[];
+	struct atdma_sg			sg[] __counted_by(sglen);
 };
 
 /*--  Channels  --------------------------------------------------------*/
@@ -2100,7 +2100,7 @@ static int __init at_dma_probe(struct platform_device *pdev)
 	return err;
 }
 
-static int at_dma_remove(struct platform_device *pdev)
+static void at_dma_remove(struct platform_device *pdev)
 {
 	struct at_dma		*atdma = platform_get_drvdata(pdev);
 	struct dma_chan		*chan, *_chan;
@@ -2122,8 +2122,6 @@ static int at_dma_remove(struct platform_device *pdev)
 	}
 
 	clk_disable_unprepare(atdma->clk);
-
-	return 0;
 }
 
 static void at_dma_shutdown(struct platform_device *pdev)
@@ -2242,7 +2240,7 @@ static const struct dev_pm_ops __maybe_unused at_dma_dev_pm_ops = {
 };
 
 static struct platform_driver at_dma_driver = {
-	.remove		= at_dma_remove,
+	.remove_new	= at_dma_remove,
 	.shutdown	= at_dma_shutdown,
 	.id_table	= atdma_devtypes,
 	.driver = {

diff --git a/drivers/dma/at_xdmac.c b/drivers/dma/at_xdmac.c
@@ -2431,7 +2431,7 @@ static int at_xdmac_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int at_xdmac_remove(struct platform_device *pdev)
+static void at_xdmac_remove(struct platform_device *pdev)
 {
 	struct at_xdmac	*atxdmac = (struct at_xdmac *)platform_get_drvdata(pdev);
 	int		i;
@@ -2452,8 +2452,6 @@ static int at_xdmac_remove(struct platform_device *pdev)
 		tasklet_kill(&atchan->tasklet);
 		at_xdmac_free_chan_resources(&atchan->chan);
 	}
-
-	return 0;
 }
 
 static const struct dev_pm_ops __maybe_unused atmel_xdmac_dev_pm_ops = {
@@ -2478,7 +2476,7 @@ MODULE_DEVICE_TABLE(of, atmel_xdmac_dt_ids);
 
 static struct platform_driver at_xdmac_driver = {
 	.probe		= at_xdmac_probe,
-	.remove		= at_xdmac_remove,
+	.remove_new	= at_xdmac_remove,
 	.driver = {
 		.name		= "at_xdmac",
 		.of_match_table	= of_match_ptr(atmel_xdmac_dt_ids),

diff --git a/drivers/dma/bcm-sba-raid.c b/drivers/dma/bcm-sba-raid.c
@@ -1734,7 +1734,7 @@ static int sba_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int sba_remove(struct platform_device *pdev)
+static void sba_remove(struct platform_device *pdev)
 {
 	struct sba_device *sba = platform_get_drvdata(pdev);
 
@@ -1745,8 +1745,6 @@ static int sba_remove(struct platform_device *pdev)
 	sba_freeup_channel_resources(sba);
 
 	mbox_free_channel(sba->mchan);
-
-	return 0;
 }
 
 static const struct of_device_id sba_of_match[] = {
@@ -1758,7 +1756,7 @@ MODULE_DEVICE_TABLE(of, sba_of_match);
 
 static struct platform_driver sba_driver = {
 	.probe = sba_probe,
-	.remove = sba_remove,
+	.remove_new = sba_remove,
 	.driver = {
 		.name = "bcm-sba-raid",
 		.of_match_table = sba_of_match,

diff --git a/drivers/dma/bcm2835-dma.c b/drivers/dma/bcm2835-dma.c
@@ -1019,19 +1019,17 @@ static int bcm2835_dma_probe(struct platform_device *pdev)
 	return rc;
 }
 
-static int bcm2835_dma_remove(struct platform_device *pdev)
+static void bcm2835_dma_remove(struct platform_device *pdev)
 {
 	struct bcm2835_dmadev *od = platform_get_drvdata(pdev);
 
 	dma_async_device_unregister(&od->ddev);
 	bcm2835_dma_free(od);
-
-	return 0;
 }
 
 static struct platform_driver bcm2835_dma_driver = {
 	.probe	= bcm2835_dma_probe,
-	.remove	= bcm2835_dma_remove,
+	.remove_new = bcm2835_dma_remove,
 	.driver = {
 		.name = "bcm2835-dma",
 		.of_match_table = of_match_ptr(bcm2835_dma_of_match),

diff --git a/drivers/dma/bestcomm/bestcomm.c b/drivers/dma/bestcomm/bestcomm.c
@@ -455,7 +455,7 @@ static int mpc52xx_bcom_probe(struct platform_device *op)
 }
 
 
-static int mpc52xx_bcom_remove(struct platform_device *op)
+static void mpc52xx_bcom_remove(struct platform_device *op)
 {
 	/* Clean up the engine */
 	bcom_engine_cleanup();
@@ -473,8 +473,6 @@ static int mpc52xx_bcom_remove(struct platform_device *op)
 	/* Release memory */
 	kfree(bcom_eng);
 	bcom_eng = NULL;
-
-	return 0;
 }
 
 static const struct of_device_id mpc52xx_bcom_of_match[] = {
@@ -488,7 +486,7 @@ MODULE_DEVICE_TABLE(of, mpc52xx_bcom_of_match);
 
 static struct platform_driver mpc52xx_bcom_of_platform_driver = {
 	.probe		= mpc52xx_bcom_probe,
-	.remove		= mpc52xx_bcom_remove,
+	.remove_new	= mpc52xx_bcom_remove,
 	.driver = {
 		.name = DRIVER_NAME,
 		.of_match_table = mpc52xx_bcom_of_match,

diff --git a/drivers/dma/dma-axi-dmac.c b/drivers/dma/dma-axi-dmac.c
@@ -117,7 +117,7 @@ struct axi_dmac_desc {
 	unsigned int num_submitted;
 	unsigned int num_completed;
 	unsigned int num_sgs;
-	struct axi_dmac_sg sg[];
+	struct axi_dmac_sg sg[] __counted_by(num_sgs);
 };
 
 struct axi_dmac_chan {
@@ -484,12 +484,11 @@ static struct axi_dmac_desc *axi_dmac_alloc_desc(unsigned int num_sgs)
 	desc = kzalloc(struct_size(desc, sg, num_sgs), GFP_NOWAIT);
 	if (!desc)
 		return NULL;
+	desc->num_sgs = num_sgs;
 
 	for (i = 0; i < num_sgs; i++)
 		desc->sg[i].id = AXI_DMAC_SG_UNUSED;
 
-	desc->num_sgs = num_sgs;
-
 	return desc;
 }
 
@@ -1029,7 +1028,7 @@ static int axi_dmac_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int axi_dmac_remove(struct platform_device *pdev)
+static void axi_dmac_remove(struct platform_device *pdev)
 {
 	struct axi_dmac *dmac = platform_get_drvdata(pdev);
 
@@ -1038,8 +1037,6 @@ static int axi_dmac_remove(struct platform_device *pdev)
 	tasklet_kill(&dmac->chan.vchan.task);
 	dma_async_device_unregister(&dmac->dma_dev);
 	clk_disable_unprepare(dmac->clk);
-
-	return 0;
 }
 
 static const struct of_device_id axi_dmac_of_match_table[] = {
@@ -1054,7 +1051,7 @@ static struct platform_driver axi_dmac_driver = {
 		.of_match_table = axi_dmac_of_match_table,
 	},
 	.probe = axi_dmac_probe,
-	.remove = axi_dmac_remove,
+	.remove_new = axi_dmac_remove,
 };
 module_platform_driver(axi_dmac_driver);
 

diff --git a/drivers/dma/dma-jz4780.c b/drivers/dma/dma-jz4780.c
@@ -1008,7 +1008,7 @@ static int jz4780_dma_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int jz4780_dma_remove(struct platform_device *pdev)
+static void jz4780_dma_remove(struct platform_device *pdev)
 {
 	struct jz4780_dma_dev *jzdma = platform_get_drvdata(pdev);
 	int i;
@@ -1020,8 +1020,6 @@ static int jz4780_dma_remove(struct platform_device *pdev)
 
 	for (i = 0; i < jzdma->soc_data->nb_channels; i++)
 		tasklet_kill(&jzdma->chan[i].vchan.task);
-
-	return 0;
 }
 
 static const struct jz4780_dma_soc_data jz4740_dma_soc_data = {
@@ -1124,7 +1122,7 @@ MODULE_DEVICE_TABLE(of, jz4780_dma_dt_match);
 
 static struct platform_driver jz4780_dma_driver = {
 	.probe		= jz4780_dma_probe,
-	.remove		= jz4780_dma_remove,
+	.remove_new	= jz4780_dma_remove,
 	.driver	= {
 		.name	= "jz4780-dma",
 		.of_match_table = jz4780_dma_dt_match,