To address the EBUSY fail of interrupt affinity settings in case that the
previous setting has not been cleaned up yet, use the new apic_ack_irq()
function instead of the special uv_ack_apic() implementation which is
merily a wrapper around ack_APIC_irq().

Preparatory change for the real fix

Fixes: dccfe3147b42 ("x86/vector: Simplify vector move cleanup")
Reported-by: Song Liu <liu.song....@gmail.com>
Signed-off-by: Thomas Gleixner <t...@linutronix.de>
Cc: sta...@vger.kernel.org
---
 arch/x86/platform/uv/uv_irq.c |    7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

--- a/arch/x86/platform/uv/uv_irq.c
+++ b/arch/x86/platform/uv/uv_irq.c
@@ -47,11 +47,6 @@ static void uv_program_mmr(struct irq_cf
 
 static void uv_noop(struct irq_data *data) { }
 
-static void uv_ack_apic(struct irq_data *data)
-{
-       ack_APIC_irq();
-}
-
 static int
 uv_set_irq_affinity(struct irq_data *data, const struct cpumask *mask,
                    bool force)
@@ -73,7 +68,7 @@ static struct irq_chip uv_irq_chip = {
        .name                   = "UV-CORE",
        .irq_mask               = uv_noop,
        .irq_unmask             = uv_noop,
-       .irq_eoi                = uv_ack_apic,
+       .irq_eoi                = apic_ack_irq,
        .irq_set_affinity       = uv_set_irq_affinity,
 };
 


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