linux-kernel - [PATCH 2/7] xen/events: remove unused functions

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Date:   Mon, 16 Oct 2023 08:28:26 +0200
From:   Juergen Gross <jgross@...e.com>
To:     linux-kernel@...r.kernel.org
Cc:     Juergen Gross <jgross@...e.com>,
        Stefano Stabellini <sstabellini@...nel.org>,
        Oleksandr Tyshchenko <oleksandr_tyshchenko@...m.com>,
        xen-devel@...ts.xenproject.org
Subject: [PATCH 2/7] xen/events: remove unused functions

There are no users of xen_irq_from_pirq() and xen_set_irq_pending().

Remove those functions.

Signed-off-by: Juergen Gross <jgross@...e.com>
---
 drivers/xen/events/events_base.c | 30 ------------------------------
 include/xen/events.h             |  4 ----
 2 files changed, 34 deletions(-)

diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c
index 0e458b1c0c8c..1d797dd85d0e 100644
--- a/drivers/xen/events/events_base.c
+++ b/drivers/xen/events/events_base.c
@@ -1165,29 +1165,6 @@ int xen_destroy_irq(int irq)
 	return rc;
 }
 
-int xen_irq_from_pirq(unsigned pirq)
-{
-	int irq;
-
-	struct irq_info *info;
-
-	mutex_lock(&irq_mapping_update_lock);
-
-	list_for_each_entry(info, &xen_irq_list_head, list) {
-		if (info->type != IRQT_PIRQ)
-			continue;
-		irq = info->irq;
-		if (info->u.pirq.pirq == pirq)
-			goto out;
-	}
-	irq = -1;
-out:
-	mutex_unlock(&irq_mapping_update_lock);
-
-	return irq;
-}
-
-
 int xen_pirq_from_irq(unsigned irq)
 {
 	return pirq_from_irq(irq);
@@ -2026,13 +2003,6 @@ void xen_clear_irq_pending(int irq)
 		event_handler_exit(info);
 }
 EXPORT_SYMBOL(xen_clear_irq_pending);
-void xen_set_irq_pending(int irq)
-{
-	evtchn_port_t evtchn = evtchn_from_irq(irq);
-
-	if (VALID_EVTCHN(evtchn))
-		set_evtchn(evtchn);
-}
 
 bool xen_test_irq_pending(int irq)
 {
diff --git a/include/xen/events.h b/include/xen/events.h
index 23932b0673dc..a129cafa80ed 100644
--- a/include/xen/events.h
+++ b/include/xen/events.h
@@ -88,7 +88,6 @@ void xen_irq_resume(void);
 
 /* Clear an irq's pending state, in preparation for polling on it */
 void xen_clear_irq_pending(int irq);
-void xen_set_irq_pending(int irq);
 bool xen_test_irq_pending(int irq);
 
 /* Poll waiting for an irq to become pending.  In the usual case, the
@@ -122,9 +121,6 @@ int xen_bind_pirq_msi_to_irq(struct pci_dev *dev, struct msi_desc *msidesc,
 /* De-allocates the above mentioned physical interrupt. */
 int xen_destroy_irq(int irq);
 
-/* Return irq from pirq */
-int xen_irq_from_pirq(unsigned pirq);
-
 /* Return the pirq allocated to the irq. */
 int xen_pirq_from_irq(unsigned irq);
 
-- 
2.35.3