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authorThomas Gleixner <tglx@linutronix.de>2021-12-10 23:19:28 +0100
committerThomas Gleixner <tglx@linutronix.de>2021-12-16 22:16:41 +0100
commitf6632bb2c1454b857adcd131320379ec16fd8666 (patch)
tree4229119ca89023d56601a552d2a06c387e9d1344
parentf48235900182d64537c6e8f8dc0932b57a1a0638 (diff)
dmaengine: mv_xor_v2: Get rid of msi_desc abuse
Storing a pointer to the MSI descriptor just to keep track of the Linux interrupt number is daft. Use msi_get_virq() instead. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Acked-by: Vinod Koul <vkoul@kernel.org> Link: https://lore.kernel.org/r/20211210221814.970099984@linutronix.de
-rw-r--r--drivers/dma/mv_xor_v2.c16
1 files changed, 5 insertions, 11 deletions
diff --git a/drivers/dma/mv_xor_v2.c b/drivers/dma/mv_xor_v2.c
index 9b0d463f89bb..9c8b4084ba2f 100644
--- a/drivers/dma/mv_xor_v2.c
+++ b/drivers/dma/mv_xor_v2.c
@@ -149,7 +149,7 @@ struct mv_xor_v2_descriptor {
* @desc_size: HW descriptor size
* @npendings: number of pending descriptors (for which tx_submit has
* @hw_queue_idx: HW queue index
- * @msi_desc: local interrupt descriptor information
+ * @irq: The Linux interrupt number
* been called, but not yet issue_pending)
*/
struct mv_xor_v2_device {
@@ -168,7 +168,7 @@ struct mv_xor_v2_device {
int desc_size;
unsigned int npendings;
unsigned int hw_queue_idx;
- struct msi_desc *msi_desc;
+ unsigned int irq;
};
/**
@@ -718,7 +718,6 @@ static int mv_xor_v2_probe(struct platform_device *pdev)
int i, ret = 0;
struct dma_device *dma_dev;
struct mv_xor_v2_sw_desc *sw_desc;
- struct msi_desc *msi_desc;
BUILD_BUG_ON(sizeof(struct mv_xor_v2_descriptor) !=
MV_XOR_V2_EXT_DESC_SIZE);
@@ -770,14 +769,9 @@ static int mv_xor_v2_probe(struct platform_device *pdev)
if (ret)
goto disable_clk;
- msi_desc = first_msi_entry(&pdev->dev);
- if (!msi_desc) {
- ret = -ENODEV;
- goto free_msi_irqs;
- }
- xor_dev->msi_desc = msi_desc;
+ xor_dev->irq = msi_get_virq(&pdev->dev, 0);
- ret = devm_request_irq(&pdev->dev, msi_desc->irq,
+ ret = devm_request_irq(&pdev->dev, xor_dev->irq,
mv_xor_v2_interrupt_handler, 0,
dev_name(&pdev->dev), xor_dev);
if (ret)
@@ -892,7 +886,7 @@ static int mv_xor_v2_remove(struct platform_device *pdev)
xor_dev->desc_size * MV_XOR_V2_DESC_NUM,
xor_dev->hw_desq_virt, xor_dev->hw_desq);
- devm_free_irq(&pdev->dev, xor_dev->msi_desc->irq, xor_dev);
+ devm_free_irq(&pdev->dev, xor_dev->irq, xor_dev);
platform_msi_domain_free_irqs(&pdev->dev);