[patch V3 30/35] perf/smmuv3: Use msi_get_virq()

[Thomas Gleixner <tglx@xxxxxxxxxxxxx>]

From: Thomas Gleixner <tglx@xxxxxxxxxxxxx>

Let the core code fiddle with the MSI descriptor retrieval.

Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Reviewed-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Reviewed-by: Jason Gunthorpe <jgg@xxxxxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Cc: Will Deacon <will@xxxxxxxxxx>
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
---
 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);