diff options
Diffstat (limited to 'kernel/irq/handle.c')
| -rw-r--r-- | kernel/irq/handle.c | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c index 79f987b942b8..38554bc35375 100644 --- a/kernel/irq/handle.c +++ b/kernel/irq/handle.c @@ -1,12 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0 /* - * linux/kernel/irq/handle.c - * * Copyright (C) 1992, 1998-2006 Linus Torvalds, Ingo Molnar * Copyright (C) 2005-2006, Thomas Gleixner, Russell King * - * This file contains the core interrupt handling code. - * - * Detailed information is available in Documentation/core-api/genericirq.rst + * This file contains the core interrupt handling code. Detailed + * information is available in Documentation/core-api/genericirq.rst * */ @@ -20,6 +18,10 @@ #include "internals.h" +#ifdef CONFIG_GENERIC_IRQ_MULTI_HANDLER +void (*handle_arch_irq)(struct pt_regs *) __ro_after_init; +#endif + /** * handle_bad_irq - handle spurious and unhandled irqs * @desc: description of the interrupt @@ -207,3 +209,14 @@ irqreturn_t handle_irq_event(struct irq_desc *desc) irqd_clear(&desc->irq_data, IRQD_IRQ_INPROGRESS); return ret; } + +#ifdef CONFIG_GENERIC_IRQ_MULTI_HANDLER +int __init set_handle_irq(void (*handle_irq)(struct pt_regs *)) +{ + if (handle_arch_irq) + return -EBUSY; + + handle_arch_irq = handle_irq; + return 0; +} +#endif |