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UPSTREAM: KVM: arm64: vgic: Drop WARN from vgic_get_irq

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vgic_get_irq(intid) is used all over the vgic code in order to get a
reference to a struct irq. It warns whenever intid is not a valid number
(like when it's a reserved IRQ number). The issue is that this warning
can be triggered from userspace (e.g., KVM_IRQ_LINE for intid 1020).

Drop the WARN call from vgic_get_irq.

Signed-off-by: Ricardo Koller <ricarkol@google.com>
Reviewed-by: Oliver Upton <oupton@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210818213205.598471-1-ricarkol@google.com
(cherry picked from commit b9a51949ce)
Signed-off-by: Will Deacon <willdeacon@google.com>
Bug: 198418208
Change-Id: I413e6059a75dcf2794a34e8be3a9a9c3404a9b1f
This commit is contained in:
Ricardo Koller
2021-08-18 14:32:05 -07:00
committed by Will Deacon
parent a92c085d26
commit 0306d69e37
1 changed files with 0 additions and 1 deletions
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1
arch/arm64/kvm/vgic/vgic.c
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@@ -106,7 +106,6 @@ struct vgic_irq *vgic_get_irq(struct kvm *kvm, struct kvm_vcpu *vcpu,
if (intid >= VGIC_MIN_LPI)
return vgic_get_lpi(kvm, intid);
WARN(1, "Looking up struct vgic_irq for reserved INTID");
return NULL;
}