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authorMichael Kelley <mikelley@microsoft.com>2022-07-25 17:53:40 -0700
committerMarc Zyngier <maz@kernel.org>2022-08-04 10:02:09 +0100
commitb0a4ab7ca4ce993d1cc51cbc85e9f341c729a3d4 (patch)
tree04c9ffa37267552b94238f76e951b43327f77a79 /drivers/iommu
parent2bd1753e8c431fc7475c04ac8d14a4e9930f47f6 (diff)
iommu/hyper-v: Use helper instead of directly accessing affinity
Recent changes to solve inconsistencies in handling IRQ masks #ifdef out the affinity field in irq_common_data for non-SMP configurations. The current code in hyperv_irq_remapping_alloc() gets a compiler error in that case. Fix this by using the new irq_data_update_affinity() helper, which handles the non-SMP case correctly. Signed-off-by: Michael Kelley <mikelley@microsoft.com> Reported-by: Randy Dunlap <rdunlap@infradead.org> Tested-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Marc Zyngier <maz@kernel.org> Fixes: aa0813581b8d ("genirq: Provide an IRQ affinity mask in non-SMP configs") Link: https://lore.kernel.org/r/1658796820-2261-1-git-send-email-mikelley@microsoft.com
Diffstat (limited to 'drivers/iommu')
-rw-r--r--drivers/iommu/hyperv-iommu.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/iommu/hyperv-iommu.c b/drivers/iommu/hyperv-iommu.c
index 51bd66a45a11..e190bb8c225c 100644
--- a/drivers/iommu/hyperv-iommu.c
+++ b/drivers/iommu/hyperv-iommu.c
@@ -68,7 +68,6 @@ static int hyperv_irq_remapping_alloc(struct irq_domain *domain,
{
struct irq_alloc_info *info = arg;
struct irq_data *irq_data;
- struct irq_desc *desc;
int ret = 0;
if (!info || info->type != X86_IRQ_ALLOC_TYPE_IOAPIC || nr_irqs > 1)
@@ -90,8 +89,7 @@ static int hyperv_irq_remapping_alloc(struct irq_domain *domain,
* Hypver-V IO APIC irq affinity should be in the scope of
* ioapic_max_cpumask because no irq remapping support.
*/
- desc = irq_data_to_desc(irq_data);
- cpumask_copy(desc->irq_common_data.affinity, &ioapic_max_cpumask);
+ irq_data_update_affinity(irq_data, &ioapic_max_cpumask);
return 0;
}