4.16-stable review patch. If anyone has any objections, please let me know.
------------------
From: Thomas Gleixner <t...@linutronix.de>
commit 8a2b7d142e7ac477d52f5f92251e59fc136d7ddd upstream.
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 ir_ack_apic_edge() implementation which is
merily a wrapper around ack_APIC_irq().
Preparatory change for the real fix
Fixes: dccfe3147b42 ("x86/vector: Simplify vector move cleanup")
Signed-off-by: Thomas Gleixner <t...@linutronix.de>
Tested-by: Song Liu <songliubrav...@fb.com>
Cc: Joerg Roedel <jroe...@suse.de>
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Song Liu <liu.song....@gmail.com>
Cc: Dmitry Safonov <0x7f454...@gmail.com>
Cc: sta...@vger.kernel.org
Cc: Mike Travis <mike.tra...@hpe.com>
Cc: Borislav Petkov <b...@alien8.de>
Cc: Tariq Toukan <tar...@mellanox.com>
Link: https://lkml.kernel.org/r/20180604162224.555716...@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/iommu/amd_iommu.c | 2 +-
drivers/iommu/intel_irq_remapping.c | 2 +-
drivers/iommu/irq_remapping.c | 5 -----
drivers/iommu/irq_remapping.h | 2 --
4 files changed, 2 insertions(+), 9 deletions(-)
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -4352,7 +4352,7 @@ static void ir_compose_msi_msg(struct ir
static struct irq_chip amd_ir_chip = {
.name = "AMD-IR",
- .irq_ack = ir_ack_apic_edge,
+ .irq_ack = apic_ack_irq,
.irq_set_affinity = amd_ir_set_affinity,
.irq_set_vcpu_affinity = amd_ir_set_vcpu_affinity,
.irq_compose_msi_msg = ir_compose_msi_msg,
--- a/drivers/iommu/intel_irq_remapping.c
+++ b/drivers/iommu/intel_irq_remapping.c
@@ -1223,7 +1223,7 @@ static int intel_ir_set_vcpu_affinity(st
static struct irq_chip intel_ir_chip = {
.name = "INTEL-IR",
- .irq_ack = ir_ack_apic_edge,
+ .irq_ack = apic_ack_irq,
.irq_set_affinity = intel_ir_set_affinity,
.irq_compose_msi_msg = intel_ir_compose_msi_msg,
.irq_set_vcpu_affinity = intel_ir_set_vcpu_affinity,
--- a/drivers/iommu/irq_remapping.c
+++ b/drivers/iommu/irq_remapping.c
@@ -156,11 +156,6 @@ void panic_if_irq_remap(const char *msg)
panic(msg);
}
-void ir_ack_apic_edge(struct irq_data *data)
-{
- ack_APIC_irq();
-}
-
/**
* irq_remapping_get_ir_irq_domain - Get the irqdomain associated with the
IOMMU
* device serving request @info
--- a/drivers/iommu/irq_remapping.h
+++ b/drivers/iommu/irq_remapping.h
@@ -65,8 +65,6 @@ struct irq_remap_ops {
extern struct irq_remap_ops intel_irq_remap_ops;
extern struct irq_remap_ops amd_iommu_irq_ops;
-extern void ir_ack_apic_edge(struct irq_data *data);
-
#else /* CONFIG_IRQ_REMAP */
#define irq_remapping_enabled 0
