[PATCH 6.6 131/299] xen/events: modify internal [un]bind interfaces

Greg Kroah-Hartman
2024-02-27T13:54:04Z

From: Juergen Gross <jgross@suse.com>

[ Upstream commit 3fcdaf3d7634338c3f5cbfa7451eb0b6b0024844 ]

Modify the internal bind- and unbind-interfaces to take a struct
irq_info parameter. When allocating a new IRQ pass the pointer from
the allocating function further up.

This will reduce the number of info_for_irq() calls and make the code
more efficient.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Stable-dep-of: fa765c4b4aed ("xen/events: close evtchn after mapping cleanup")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/xen/events/events_base.c | 259 +++++++++++++++----------------
1 file changed, 124 insertions(+), 135 deletions(-)

diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c
index 4dfd68382465b..6f57ef78f5507 100644
--- a/drivers/xen/events/events_base.c
+++ b/drivers/xen/events/events_base.c
@@ -327,7 +327,6 @@ static void delayed_free_irq(struct work_struct *work)

/* Constructors for packed IRQ information. */
static int xen_irq_info_common_setup(struct irq_info *info,
- unsigned irq,
enum xen_irq_type type,
evtchn_port_t evtchn,
unsigned short cpu)
@@ -342,23 +341,22 @@ static int xen_irq_info_common_setup(struct irq_info *info,
info->mask_reason = EVT_MASK_REASON_EXPLICIT;
raw_spin_lock_init(&info->lock);

- ret = set_evtchn_to_irq(evtchn, irq);
+ ret = set_evtchn_to_irq(evtchn, info->irq);
if (ret < 0)
return ret;

- irq_clear_status_flags(irq, IRQ_NOREQUEST|IRQ_NOAUTOEN);
+ irq_clear_status_flags(info->irq, IRQ_NOREQUEST | IRQ_NOAUTOEN);

return xen_evtchn_port_setup(evtchn);
}

-static int xen_irq_info_evtchn_setup(unsigned irq,
+static int xen_irq_info_evtchn_setup(struct irq_info *info,
evtchn_port_t evtchn,
struct xenbus_device *dev)
{
- struct irq_info *info = info_for_irq(irq);
int ret;

- ret = xen_irq_info_common_setup(info, irq, IRQT_EVTCHN, evtchn, 0);
+ ret = xen_irq_info_common_setup(info, IRQT_EVTCHN, evtchn, 0);
info->u.interdomain = dev;
if (dev)
atomic_inc(&dev->event_channels);
@@ -366,50 +364,37 @@ static int xen_irq_info_evtchn_setup(unsigned irq,
return ret;
}

-static int xen_irq_info_ipi_setup(unsigned cpu,
- unsigned irq,
- evtchn_port_t evtchn,
- enum ipi_vector ipi)
+static int xen_irq_info_ipi_setup(struct irq_info *info, unsigned int cpu,
+ evtchn_port_t evtchn, enum ipi_vector ipi)
{
- struct irq_info *info = info_for_irq(irq);
-
info->u.ipi = ipi;

- per_cpu(ipi_to_irq, cpu)[ipi] = irq;
+ per_cpu(ipi_to_irq, cpu)[ipi] = info->irq;
per_cpu(ipi_to_evtchn, cpu)[ipi] = evtchn;

- return xen_irq_info_common_setup(info, irq, IRQT_IPI, evtchn, 0);
+ return xen_irq_info_common_setup(info, IRQT_IPI, evtchn, 0);
}

-static int xen_irq_info_virq_setup(unsigned cpu,
- unsigned irq,
- evtchn_port_t evtchn,
- unsigned virq)
+static int xen_irq_info_virq_setup(struct irq_info *info, unsigned int cpu,
+ evtchn_port_t evtchn, unsigned int virq)
{
- struct irq_info *info = info_for_irq(irq);
-
info->u.virq = virq;

- per_cpu(virq_to_irq, cpu)[virq] = irq;
+ per_cpu(virq_to_irq, cpu)[virq] = info->irq;

- return xen_irq_info_common_setup(info, irq, IRQT_VIRQ, evtchn, 0);
+ return xen_irq_info_common_setup(info, IRQT_VIRQ, evtchn, 0);
}

-static int xen_irq_info_pirq_setup(unsigned irq,
- evtchn_port_t evtchn,
- unsigned pirq,
- unsigned gsi,
- uint16_t domid,
- unsigned char flags)
+static int xen_irq_info_pirq_setup(struct irq_info *info, evtchn_port_t evtchn,
+ unsigned int pirq, unsigned int gsi,
+ uint16_t domid, unsigned char flags)
{
- struct irq_info *info = info_for_irq(irq);
-
info->u.pirq.pirq = pirq;
info->u.pirq.gsi = gsi;
info->u.pirq.domid = domid;
info->u.pirq.flags = flags;

- return xen_irq_info_common_setup(info, irq, IRQT_PIRQ, evtchn, 0);
+ return xen_irq_info_common_setup(info, IRQT_PIRQ, evtchn, 0);
}

static void xen_irq_info_cleanup(struct irq_info *info)
@@ -453,20 +438,16 @@ int irq_evtchn_from_virq(unsigned int cpu, unsigned int virq,
return irq;
}

-static enum ipi_vector ipi_from_irq(unsigned irq)
+static enum ipi_vector ipi_from_irq(struct irq_info *info)
{
- struct irq_info *info = info_for_irq(irq);
-
BUG_ON(info == NULL);
BUG_ON(info->type != IRQT_IPI);

return info->u.ipi;
}

-static unsigned virq_from_irq(unsigned irq)
+static unsigned int virq_from_irq(struct irq_info *info)
{
- struct irq_info *info = info_for_irq(irq);
-
BUG_ON(info == NULL);
BUG_ON(info->type != IRQT_VIRQ);

@@ -533,13 +514,9 @@ static bool pirq_needs_eoi_flag(unsigned irq)
return info->u.pirq.flags & PIRQ_NEEDS_EOI;
}

-static void bind_evtchn_to_cpu(evtchn_port_t evtchn, unsigned int cpu,
+static void bind_evtchn_to_cpu(struct irq_info *info, unsigned int cpu,
bool force_affinity)
{
- struct irq_info *info = evtchn_to_info(evtchn);
-
- BUG_ON(info == NULL);
-
if (IS_ENABLED(CONFIG_SMP) && force_affinity) {
struct irq_data *data = irq_get_irq_data(info->irq);

@@ -547,7 +524,7 @@ static void bind_evtchn_to_cpu(evtchn_port_t evtchn, unsigned int cpu,
irq_data_update_effective_affinity(data, cpumask_of(cpu));
}

- xen_evtchn_port_bind_to_cpu(evtchn, cpu, info->cpu);
+ xen_evtchn_port_bind_to_cpu(info->evtchn, cpu, info->cpu);

channels_on_cpu_dec(info);
info->cpu = cpu;
@@ -762,23 +739,24 @@ static struct irq_info *xen_irq_init(unsigned int irq)
return info;
}

-static inline int __must_check xen_allocate_irq_dynamic(void)
+static struct irq_info *xen_allocate_irq_dynamic(void)
{
int irq = irq_alloc_desc_from(0, -1);
+ struct irq_info *info = NULL;

if (irq >= 0) {
- if (!xen_irq_init(irq)) {
+ info = xen_irq_init(irq);
+ if (!info)
xen_irq_free_desc(irq);
- irq = -1;
- }
}

- return irq;
+ return info;
}

-static int __must_check xen_allocate_irq_gsi(unsigned gsi)
+static struct irq_info *xen_allocate_irq_gsi(unsigned int gsi)
{
int irq;
+ struct irq_info *info;

/*
* A PV guest has no concept of a GSI (since it has no ACPI
@@ -795,18 +773,15 @@ static int __must_check xen_allocate_irq_gsi(unsigned gsi)
else
irq = irq_alloc_desc_at(gsi, -1);

- if (!xen_irq_init(irq)) {
+ info = xen_irq_init(irq);
+ if (!info)
xen_irq_free_desc(irq);
- irq = -1;
- }

- return irq;
+ return info;
}

-static void xen_free_irq(unsigned irq)
+static void xen_free_irq(struct irq_info *info)
{
- struct irq_info *info = info_for_irq(irq);
-
if (WARN_ON(!info))
return;

@@ -897,7 +872,7 @@ static unsigned int __startup_pirq(unsigned int irq)
goto err;

info->evtchn = evtchn;
- bind_evtchn_to_cpu(evtchn, 0, false);
+ bind_evtchn_to_cpu(info, 0, false);

rc = xen_evtchn_port_setup(evtchn);
if (rc)
@@ -963,10 +938,9 @@ int xen_irq_from_gsi(unsigned gsi)
}
EXPORT_SYMBOL_GPL(xen_irq_from_gsi);

-static void __unbind_from_irq(unsigned int irq)
+static void __unbind_from_irq(struct irq_info *info, unsigned int irq)
{
- evtchn_port_t evtchn = evtchn_from_irq(irq);
- struct irq_info *info = info_for_irq(irq);
+ evtchn_port_t evtchn;

if (!info) {
xen_irq_free_desc(irq);
@@ -979,6 +953,8 @@ static void __unbind_from_irq(unsigned int irq)
return;
}

+ evtchn = info->evtchn;
+
if (VALID_EVTCHN(evtchn)) {
unsigned int cpu = info->cpu;
struct xenbus_device *dev;
@@ -988,11 +964,11 @@ static void __unbind_from_irq(unsigned int irq)

switch (info->type) {
case IRQT_VIRQ:
- per_cpu(virq_to_irq, cpu)[virq_from_irq(irq)] = -1;
+ per_cpu(virq_to_irq, cpu)[virq_from_irq(info)] = -1;
break;
case IRQT_IPI:
- per_cpu(ipi_to_irq, cpu)[ipi_from_irq(irq)] = -1;
- per_cpu(ipi_to_evtchn, cpu)[ipi_from_irq(irq)] = 0;
+ per_cpu(ipi_to_irq, cpu)[ipi_from_irq(info)] = -1;
+ per_cpu(ipi_to_evtchn, cpu)[ipi_from_irq(info)] = 0;
break;
case IRQT_EVTCHN:
dev = info->u.interdomain;
@@ -1006,7 +982,7 @@ static void __unbind_from_irq(unsigned int irq)
xen_irq_info_cleanup(info);
}

- xen_free_irq(irq);
+ xen_free_irq(info);
}

/*
@@ -1022,24 +998,24 @@ static void __unbind_from_irq(unsigned int irq)
int xen_bind_pirq_gsi_to_irq(unsigned gsi,
unsigned pirq, int shareable, char *name)
{
- int irq;
+ struct irq_info *info;
struct physdev_irq irq_op;
int ret;

mutex_lock(&irq_mapping_update_lock);

- irq = xen_irq_from_gsi(gsi);
- if (irq != -1) {
+ ret = xen_irq_from_gsi(gsi);
+ if (ret != -1) {
pr_info("%s: returning irq %d for gsi %u\n",
- __func__, irq, gsi);
+ __func__, ret, gsi);
goto out;
}

- irq = xen_allocate_irq_gsi(gsi);
- if (irq < 0)
+ info = xen_allocate_irq_gsi(gsi);
+ if (!info)
goto out;

- irq_op.irq = irq;
+ irq_op.irq = info->irq;
irq_op.vector = 0;

/* Only the privileged domain can do this. For non-priv, the pcifront
@@ -1047,20 +1023,19 @@ int xen_bind_pirq_gsi_to_irq(unsigned gsi,
* this in the priv domain. */
if (xen_initial_domain() &&
HYPERVISOR_physdev_op(PHYSDEVOP_alloc_irq_vector, &irq_op)) {
- xen_free_irq(irq);
- irq = -ENOSPC;
+ xen_free_irq(info);
+ ret = -ENOSPC;
goto out;
}

- ret = xen_irq_info_pirq_setup(irq, 0, pirq, gsi, DOMID_SELF,
+ ret = xen_irq_info_pirq_setup(info, 0, pirq, gsi, DOMID_SELF,
shareable ? PIRQ_SHAREABLE : 0);
if (ret < 0) {
- __unbind_from_irq(irq);
- irq = ret;
+ __unbind_from_irq(info, info->irq);
goto out;
}

- pirq_query_unmask(irq);
+ pirq_query_unmask(info->irq);
/* We try to use the handler with the appropriate semantic for the
* type of interrupt: if the interrupt is an edge triggered
* interrupt we use handle_edge_irq.
@@ -1077,16 +1052,18 @@ int xen_bind_pirq_gsi_to_irq(unsigned gsi,
* is the right choice either way.
*/
if (shareable)
- irq_set_chip_and_handler_name(irq, &xen_pirq_chip,
+ irq_set_chip_and_handler_name(info->irq, &xen_pirq_chip,
handle_fasteoi_irq, name);
else
- irq_set_chip_and_handler_name(irq, &xen_pirq_chip,
+ irq_set_chip_and_handler_name(info->irq, &xen_pirq_chip,
handle_edge_irq, name);

+ ret = info->irq;
+
out:
mutex_unlock(&irq_mapping_update_lock);

- return irq;
+ return ret;
}

#ifdef CONFIG_PCI_MSI
@@ -1108,6 +1085,7 @@ int xen_bind_pirq_msi_to_irq(struct pci_dev *dev, struct msi_desc *msidesc,
int pirq, int nvec, const char *name, domid_t domid)
{
int i, irq, ret;
+ struct irq_info *info;

mutex_lock(&irq_mapping_update_lock);

@@ -1116,12 +1094,13 @@ int xen_bind_pirq_msi_to_irq(struct pci_dev *dev, struct msi_desc *msidesc,
goto out;

for (i = 0; i < nvec; i++) {
- if (!xen_irq_init(irq + i))
+ info = xen_irq_init(irq + i);
+ if (!info)
goto error_irq;

irq_set_chip_and_handler_name(irq + i, &xen_pirq_chip, handle_edge_irq, name);

- ret = xen_irq_info_pirq_setup(irq + i, 0, pirq + i, 0, domid,
+ ret = xen_irq_info_pirq_setup(info, 0, pirq + i, 0, domid,
i == 0 ? 0 : PIRQ_MSI_GROUP);
if (ret < 0)
goto error_irq;
@@ -1133,9 +1112,12 @@ int xen_bind_pirq_msi_to_irq(struct pci_dev *dev, struct msi_desc *msidesc,
out:
mutex_unlock(&irq_mapping_update_lock);
return irq;
+
error_irq:
- while (nvec--)
- __unbind_from_irq(irq + nvec);
+ while (nvec--) {
+ info = info_for_irq(irq + nvec);
+ __unbind_from_irq(info, irq + nvec);
+ }
mutex_unlock(&irq_mapping_update_lock);
return ret;
}
@@ -1171,7 +1153,7 @@ int xen_destroy_irq(int irq)
}
}

- xen_free_irq(irq);
+ xen_free_irq(info);

out:
mutex_unlock(&irq_mapping_update_lock);
@@ -1210,8 +1192,7 @@ EXPORT_SYMBOL_GPL(xen_pirq_from_irq);
static int bind_evtchn_to_irq_chip(evtchn_port_t evtchn, struct irq_chip *chip,
struct xenbus_device *dev)
{
- int irq;
- int ret;
+ int ret = -ENOMEM;
struct irq_info *info;

if (evtchn >= xen_evtchn_max_channels())
@@ -1222,17 +1203,16 @@ static int bind_evtchn_to_irq_chip(evtchn_port_t evtchn, struct irq_chip *chip,
info = evtchn_to_info(evtchn);

if (!info) {
- irq = xen_allocate_irq_dynamic();
- if (irq < 0)
+ info = xen_allocate_irq_dynamic();
+ if (!info)
goto out;

- irq_set_chip_and_handler_name(irq, chip,
+ irq_set_chip_and_handler_name(info->irq, chip,
handle_edge_irq, "event");

- ret = xen_irq_info_evtchn_setup(irq, evtchn, dev);
+ ret = xen_irq_info_evtchn_setup(info, evtchn, dev);
if (ret < 0) {
- __unbind_from_irq(irq);
- irq = ret;
+ __unbind_from_irq(info, info->irq);
goto out;
}
/*
@@ -1242,17 +1222,17 @@ static int bind_evtchn_to_irq_chip(evtchn_port_t evtchn, struct irq_chip *chip,
* affinity setting is not invoked on them so nothing would
* bind the channel.
*/
- bind_evtchn_to_cpu(evtchn, 0, false);
- } else {
- if (!WARN_ON(info->type != IRQT_EVTCHN))
- info->refcnt++;
- irq = info->irq;
+ bind_evtchn_to_cpu(info, 0, false);
+ } else if (!WARN_ON(info->type != IRQT_EVTCHN)) {
+ info->refcnt++;
}

+ ret = info->irq;
+
out:
mutex_unlock(&irq_mapping_update_lock);

- return irq;
+ return ret;
}

int bind_evtchn_to_irq(evtchn_port_t evtchn)
@@ -1271,18 +1251,19 @@ static int bind_ipi_to_irq(unsigned int ipi, unsigned int cpu)
{
struct evtchn_bind_ipi bind_ipi;
evtchn_port_t evtchn;
- int ret, irq;
+ struct irq_info *info;
+ int ret;

mutex_lock(&irq_mapping_update_lock);

- irq = per_cpu(ipi_to_irq, cpu)[ipi];
+ ret = per_cpu(ipi_to_irq, cpu)[ipi];

- if (irq == -1) {
- irq = xen_allocate_irq_dynamic();
- if (irq < 0)
+ if (ret == -1) {
+ info = xen_allocate_irq_dynamic();
+ if (!info)
goto out;

- irq_set_chip_and_handler_name(irq, &xen_percpu_chip,
+ irq_set_chip_and_handler_name(info->irq, &xen_percpu_chip,
handle_percpu_irq, "ipi");

bind_ipi.vcpu = xen_vcpu_nr(cpu);
@@ -1291,25 +1272,25 @@ static int bind_ipi_to_irq(unsigned int ipi, unsigned int cpu)
BUG();
evtchn = bind_ipi.port;

- ret = xen_irq_info_ipi_setup(cpu, irq, evtchn, ipi);
+ ret = xen_irq_info_ipi_setup(info, cpu, evtchn, ipi);
if (ret < 0) {
- __unbind_from_irq(irq);
- irq = ret;
+ __unbind_from_irq(info, info->irq);
goto out;
}
/*
* Force the affinity mask to the target CPU so proc shows
* the correct target.
*/
- bind_evtchn_to_cpu(evtchn, cpu, true);
+ bind_evtchn_to_cpu(info, cpu, true);
+ ret = info->irq;
} else {
- struct irq_info *info = info_for_irq(irq);
+ info = info_for_irq(ret);
WARN_ON(info == NULL || info->type != IRQT_IPI);
}

out:
mutex_unlock(&irq_mapping_update_lock);
- return irq;
+ return ret;
}

static int bind_interdomain_evtchn_to_irq_chip(struct xenbus_device *dev,
@@ -1377,22 +1358,23 @@ int bind_virq_to_irq(unsigned int virq, unsigned int cpu, bool percpu)
{
struct evtchn_bind_virq bind_virq;
evtchn_port_t evtchn = 0;
- int irq, ret;
+ struct irq_info *info;
+ int ret;

mutex_lock(&irq_mapping_update_lock);

- irq = per_cpu(virq_to_irq, cpu)[virq];
+ ret = per_cpu(virq_to_irq, cpu)[virq];

- if (irq == -1) {
- irq = xen_allocate_irq_dynamic();
- if (irq < 0)
+ if (ret == -1) {
+ info = xen_allocate_irq_dynamic();
+ if (!info)
goto out;

if (percpu)
- irq_set_chip_and_handler_name(irq, &xen_percpu_chip,
+ irq_set_chip_and_handler_name(info->irq, &xen_percpu_chip,
handle_percpu_irq, "virq");
else
- irq_set_chip_and_handler_name(irq, &xen_dynamic_chip,
+ irq_set_chip_and_handler_name(info->irq, &xen_dynamic_chip,
handle_edge_irq, "virq");

bind_virq.virq = virq;
@@ -1407,10 +1389,9 @@ int bind_virq_to_irq(unsigned int virq, unsigned int cpu, bool percpu)
BUG_ON(ret < 0);
}

- ret = xen_irq_info_virq_setup(cpu, irq, evtchn, virq);
+ ret = xen_irq_info_virq_setup(info, cpu, evtchn, virq);
if (ret < 0) {
- __unbind_from_irq(irq);
- irq = ret;
+ __unbind_from_irq(info, info->irq);
goto out;
}

@@ -1418,22 +1399,26 @@ int bind_virq_to_irq(unsigned int virq, unsigned int cpu, bool percpu)
* Force the affinity mask for percpu interrupts so proc
* shows the correct target.
*/
- bind_evtchn_to_cpu(evtchn, cpu, percpu);
+ bind_evtchn_to_cpu(info, cpu, percpu);
+ ret = info->irq;
} else {
- struct irq_info *info = info_for_irq(irq);
+ info = info_for_irq(ret);
WARN_ON(info == NULL || info->type != IRQT_VIRQ);
}

out:
mutex_unlock(&irq_mapping_update_lock);

- return irq;
+ return ret;
}

static void unbind_from_irq(unsigned int irq)
{
+ struct irq_info *info;
+
mutex_lock(&irq_mapping_update_lock);
- __unbind_from_irq(irq);
+ info = info_for_irq(irq);
+ __unbind_from_irq(info, irq);
mutex_unlock(&irq_mapping_update_lock);
}

@@ -1767,11 +1752,11 @@ void rebind_evtchn_irq(evtchn_port_t evtchn, int irq)
BUG_ON(info->type == IRQT_UNBOUND);

info->irq = irq;
- (void)xen_irq_info_evtchn_setup(irq, evtchn, NULL);
+ (void)xen_irq_info_evtchn_setup(info, evtchn, NULL);

mutex_unlock(&irq_mapping_update_lock);

- bind_evtchn_to_cpu(evtchn, info->cpu, false);
+ bind_evtchn_to_cpu(info, info->cpu, false);

/* Unmask the event channel. */
enable_irq(irq);
@@ -1805,7 +1790,7 @@ static int xen_rebind_evtchn_to_cpu(struct irq_info *info, unsigned int tcpu)
* it, but don't do the xenlinux-level rebind in that case.
*/
if (HYPERVISOR_event_channel_op(EVTCHNOP_bind_vcpu, &bind_vcpu) >= 0)
- bind_evtchn_to_cpu(evtchn, tcpu, false);
+ bind_evtchn_to_cpu(info, tcpu, false);

do_unmask(info, EVT_MASK_REASON_TEMPORARY);

@@ -1956,7 +1941,7 @@ static void restore_pirqs(void)
if (rc) {
pr_warn("xen map irq failed gsi=%d irq=%d pirq=%d rc=%d\n",
gsi, irq, pirq, rc);
- xen_free_irq(irq);
+ xen_free_irq(info);
continue;
}

@@ -1970,13 +1955,15 @@ static void restore_cpu_virqs(unsigned int cpu)
{
struct evtchn_bind_virq bind_virq;
evtchn_port_t evtchn;
+ struct irq_info *info;
int virq, irq;

for (virq = 0; virq < NR_VIRQS; virq++) {
if ((irq = per_cpu(virq_to_irq, cpu)[virq]) == -1)
continue;
+ info = info_for_irq(irq);

- BUG_ON(virq_from_irq(irq) != virq);
+ BUG_ON(virq_from_irq(info) != virq);

/* Get a new binding from Xen. */
bind_virq.virq = virq;
@@ -1987,9 +1974,9 @@ static void restore_cpu_virqs(unsigned int cpu)
evtchn = bind_virq.port;

/* Record the new mapping. */
- (void)xen_irq_info_virq_setup(cpu, irq, evtchn, virq);
+ xen_irq_info_virq_setup(info, cpu, evtchn, virq);
/* The affinity mask is still valid */
- bind_evtchn_to_cpu(evtchn, cpu, false);
+ bind_evtchn_to_cpu(info, cpu, false);
}
}

@@ -1997,13 +1984,15 @@ static void restore_cpu_ipis(unsigned int cpu)
{
struct evtchn_bind_ipi bind_ipi;
evtchn_port_t evtchn;
+ struct irq_info *info;
int ipi, irq;

for (ipi = 0; ipi < XEN_NR_IPIS; ipi++) {
if ((irq = per_cpu(ipi_to_irq, cpu)[ipi]) == -1)
continue;
+ info = info_for_irq(irq);

- BUG_ON(ipi_from_irq(irq) != ipi);
+ BUG_ON(ipi_from_irq(info) != ipi);

/* Get a new binding from Xen. */
bind_ipi.vcpu = xen_vcpu_nr(cpu);
@@ -2013,9 +2002,9 @@ static void restore_cpu_ipis(unsigned int cpu)
evtchn = bind_ipi.port;

/* Record the new mapping. */
- (void)xen_irq_info_ipi_setup(cpu, irq, evtchn, ipi);
+ xen_irq_info_ipi_setup(info, cpu, evtchn, ipi);
/* The affinity mask is still valid */
- bind_evtchn_to_cpu(evtchn, cpu, false);
+ bind_evtchn_to_cpu(info, cpu, false);
}
}

--
2.43.0