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RDMA/irdma: Use irq_update_affinity_hint()

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The driver uses irq_set_affinity_hint() to update the affinity_hint mask
that is consumed by the userspace to distribute the interrupts. However,
under the hood irq_set_affinity_hint() also applies the provided cpumask
(if not NULL) as the affinity for the given interrupt which is an
undocumented side effect.

To remove this side effect irq_set_affinity_hint() has been marked
as deprecated and new interfaces have been introduced. Hence, replace the
irq_set_affinity_hint() with the new interface irq_update_affinity_hint()
that only updates the affinity_hint pointer.

Signed-off-by: Nitesh Narayan Lal <nitesh@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com>
Link: https://lore.kernel.org/r/20210903152430.244937-7-nitesh@redhat.com
This commit is contained in:
Nitesh Narayan Lal 2021-09-03 11:24:22 -04:00 committed by Thomas Gleixner
parent fdb8ed13a7
commit fb5bd85471
1 changed files with 2 additions and 2 deletions
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4
drivers/infiniband/hw/irdma/hw.c
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@ -545,7 +545,7 @@ static void irdma_destroy_irq(struct irdma_pci_f *rf,
struct irdma_sc_dev *dev = &rf->sc_dev;
dev->irq_ops->irdma_dis_irq(dev, msix_vec->idx);
irq_set_affinity_hint(msix_vec->irq, NULL);
irq_update_affinity_hint(msix_vec->irq, NULL);
free_irq(msix_vec->irq, dev_id);
}
@ -1095,7 +1095,7 @@ irdma_cfg_ceq_vector(struct irdma_pci_f *rf, struct irdma_ceq *iwceq,
}
cpumask_clear(&msix_vec->mask);
cpumask_set_cpu(msix_vec->cpu_affinity, &msix_vec->mask);
irq_set_affinity_hint(msix_vec->irq, &msix_vec->mask);
irq_update_affinity_hint(msix_vec->irq, &msix_vec->mask);
if (status) {
ibdev_dbg(&rf->iwdev->ibdev, "ERR: ceq irq config fail\n");
return IRDMA_ERR_CFG;