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dmaengine: mv_xor_v2: Get rid of msi_desc abuse

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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
This commit is contained in:
Thomas Gleixner 2021-12-10 23:19:28 +01:00
parent f482359001
commit f6632bb2c1
1 changed files with 5 additions and 11 deletions
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16
drivers/dma/mv_xor_v2.c
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@ -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);