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Message-Id: <20210219113904.41736-4-mark.rutland@arm.com>
Date: Fri, 19 Feb 2021 11:38:59 +0000
From: Mark Rutland <mark.rutland@....com>
To: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc: catalin.marinas@....com, james.morse@....com, marcan@...can.st,
mark.rutland@....com, maz@...nel.org, tglx@...utronix.de,
will@...nel.org
Subject: [PATCH 3/8] genirq: Allow architectures to override set_handle_irq() fallback
From: Marc Zyngier <maz@...nel.org>
Some architectures want to provide the generic set_handle_irq() API, but
for structural reasons need to provide their own implementation. For
example, arm64 needs to do this to provide unifoprm set_handle_irq() and
set_handle_fiq() registration functions.
Make this possible by allowing architectures to provide their own
implementation of set_handle_irq when CONFIG_GENERIC_IRQ_MULTI_HANDLER
is not selected.
Signed-off-by: Marc Zyngier <maz@...nel.org>
[Mark: expand commit message]
Signed-off-by: Mark Rutland <mark.rutland@....com>
Cc: Catalin Marinas <catalin.marinas@....com>
Cc: Hector Martin <marcan@...can.st>
Cc: James Morse <james.morse@....com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Will Deacon <will@...nel.org>
---
include/linux/irq.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 2efde6a79b7e..9890180b84fd 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -1258,11 +1258,13 @@ int __init set_handle_irq(void (*handle_irq)(struct pt_regs *));
*/
extern void (*handle_arch_irq)(struct pt_regs *) __ro_after_init;
#else
+#ifndef set_handle_irq
#define set_handle_irq(handle_irq) \
do { \
(void)handle_irq; \
WARN_ON(1); \
} while (0)
#endif
+#endif
#endif /* _LINUX_IRQ_H */
--
2.11.0
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