linux-kernel - [PATCH] irqchip: irq-msi-lib: fix build with PCI disabled

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Message-Id: <20250710080021.2303640-1-arnd@kernel.org>
Date: Thu, 10 Jul 2025 10:00:12 +0200
From: Arnd Bergmann <arnd@...nel.org>
To: Marc Zyngier <maz@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>
Cc: Arnd Bergmann <arnd@...db.de>,
	Anna-Maria Behnsen <anna-maria@...utronix.de>,
	Shivamurthy Shastri <shivamurthy.shastri@...utronix.de>,
	linux-kernel@...r.kernel.org
Subject: [PATCH] irqchip: irq-msi-lib: fix build with PCI disabled

From: Arnd Bergmann <arnd@...db.de>

The armada-370-xp irqchip fails in some randconfig builds because
of a missing declaration:

In file included from drivers/irqchip/irq-armada-370-xp.c:23:
include/linux/irqchip/irq-msi-lib.h:25:39: error: 'struct msi_domain_info' declared inside parameter list will not be visible outside of this definition or declaration [-Werror]

Add a forward declaration for the msi_domain_info structure.

Fixes: e51b27438a10 ("irqchip: Make irq-msi-lib.h globally available")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 include/linux/irqchip/irq-msi-lib.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/irqchip/irq-msi-lib.h b/include/linux/irqchip/irq-msi-lib.h
index dd8d1d138544..224ac28e88d7 100644
--- a/include/linux/irqchip/irq-msi-lib.h
+++ b/include/linux/irqchip/irq-msi-lib.h
@@ -17,6 +17,7 @@
 
 #define MATCH_PLATFORM_MSI	BIT(DOMAIN_BUS_PLATFORM_MSI)
 
+struct msi_domain_info;
 int msi_lib_irq_domain_select(struct irq_domain *d, struct irq_fwspec *fwspec,
 			      enum irq_domain_bus_token bus_token);
 
-- 
2.39.5