linux-kernel - [PATCH 5/9] irqdomain: Kill irq_create_strict_mappings()/irq_create_identity

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Date:   Tue,  6 Apr 2021 10:35:53 +0100
From:   Marc Zyngier <maz@...nel.org>
To:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-mips@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-sh@...r.kernel.org
Cc:     Daniel Mack <daniel@...que.org>,
        Robert Jarzmik <robert.jarzmik@...e.fr>,
        Haojian Zhuang <haojian.zhuang@...il.com>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Rich Felker <dalias@...c.org>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Michael Ellerman <mpe@...erman.id.au>,
        Thomas Gleixner <tglx@...utronix.de>
Subject: [PATCH 5/9] irqdomain: Kill irq_create_strict_mappings()/irq_create_identity_mapping()

No user of these APIs are left, remove them.

Signed-off-by: Marc Zyngier <maz@...nel.org>
---
 include/linux/irqdomain.h |  9 ---------
 kernel/irq/irqdomain.c    | 35 -----------------------------------
 2 files changed, 44 deletions(-)

diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index b9600f24878a..3997ed9e4d7d 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -411,15 +411,6 @@ static inline unsigned int irq_linear_revmap(struct irq_domain *domain,
 }
 
 extern unsigned int irq_create_direct_mapping(struct irq_domain *host);
-extern int irq_create_strict_mappings(struct irq_domain *domain,
-				      unsigned int irq_base,
-				      irq_hw_number_t hwirq_base, int count);
-
-static inline int irq_create_identity_mapping(struct irq_domain *host,
-					      irq_hw_number_t hwirq)
-{
-	return irq_create_strict_mappings(host, hwirq, hwirq, 1);
-}
 
 extern const struct irq_domain_ops irq_domain_simple_ops;
 
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index dfa716305ea9..0ba761e6b0a8 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -703,41 +703,6 @@ unsigned int irq_create_mapping_affinity(struct irq_domain *domain,
 }
 EXPORT_SYMBOL_GPL(irq_create_mapping_affinity);
 
-/**
- * irq_create_strict_mappings() - Map a range of hw irqs to fixed linux irqs
- * @domain: domain owning the interrupt range
- * @irq_base: beginning of linux IRQ range
- * @hwirq_base: beginning of hardware IRQ range
- * @count: Number of interrupts to map
- *
- * This routine is used for allocating and mapping a range of hardware
- * irqs to linux irqs where the linux irq numbers are at pre-defined
- * locations. For use by controllers that already have static mappings
- * to insert in to the domain.
- *
- * Non-linear users can use irq_create_identity_mapping() for IRQ-at-a-time
- * domain insertion.
- *
- * 0 is returned upon success, while any failure to establish a static
- * mapping is treated as an error.
- */
-int irq_create_strict_mappings(struct irq_domain *domain, unsigned int irq_base,
-			       irq_hw_number_t hwirq_base, int count)
-{
-	struct device_node *of_node;
-	int ret;
-
-	of_node = irq_domain_get_of_node(domain);
-	ret = irq_alloc_descs(irq_base, irq_base, count,
-			      of_node_to_nid(of_node));
-	if (unlikely(ret < 0))
-		return ret;
-
-	irq_domain_associate_many(domain, irq_base, hwirq_base, count);
-	return 0;
-}
-EXPORT_SYMBOL_GPL(irq_create_strict_mappings);
-
 static int irq_domain_translate(struct irq_domain *d,
 				struct irq_fwspec *fwspec,
 				irq_hw_number_t *hwirq, unsigned int *type)
-- 
2.29.2