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    Subject[patch V2 31/36] perf/smmuv3: Use msi_get_virq()
    Date
    Let the core code fiddle with the MSI descriptor retrieval.

    Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
    Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
    Cc: Mark Rutland <mark.rutland@arm.com>
    Cc: Will Deacon <will@kernel.org>
    Cc: linux-arm-kernel@lists.infradead.org
    ---
    drivers/perf/arm_smmuv3_pmu.c | 5 +----
    1 file changed, 1 insertion(+), 4 deletions(-)

    --- a/drivers/perf/arm_smmuv3_pmu.c
    +++ b/drivers/perf/arm_smmuv3_pmu.c
    @@ -684,7 +684,6 @@ static void smmu_pmu_write_msi_msg(struc

    static void smmu_pmu_setup_msi(struct smmu_pmu *pmu)
    {
    - struct msi_desc *desc;
    struct device *dev = pmu->dev;
    int ret;

    @@ -701,9 +700,7 @@ static void smmu_pmu_setup_msi(struct sm
    return;
    }

    - desc = first_msi_entry(dev);
    - if (desc)
    - pmu->irq = desc->irq;
    + pmu->irq = msi_get_virq(dev, 0);

    /* Add callback to free MSIs on teardown */
    devm_add_action(dev, smmu_pmu_free_msis, dev);
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