The following commit has been merged into the irq/msi branch of tip: Commit-ID: f6632bb2c1454b857adcd131320379ec16fd8666 Gitweb: https://git.kernel.org/tip/f6632bb2c1454b857adcd131320379ec16fd8666 Author: Thomas Gleixner <tglx@xxxxxxxxxxxxx> AuthorDate: Fri, 10 Dec 2021 23:19:28 +01:00 Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx> CommitterDate: Thu, 16 Dec 2021 22:16:41 +01:00 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@xxxxxxxxxxxxx> Reviewed-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Reviewed-by: Jason Gunthorpe <jgg@xxxxxxxxxx> Acked-by: Vinod Koul <vkoul@xxxxxxxxxx> Link: https://lore.kernel.org/r/20211210221814.970099984@xxxxxxxxxxxxx --- drivers/dma/mv_xor_v2.c | 16 +++++----------- 1 file changed, 5 insertions(+), 11 deletions(-) diff --git a/drivers/dma/mv_xor_v2.c b/drivers/dma/mv_xor_v2.c index 9b0d463..9c8b408 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);
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