Create a new interface and confine it with a config switch which makes
clear that this is just legacy support and not to be used for new code.
Signed-off-by: Thomas Gleixner <t...@linutronix.de>
---
include/linux/irq.h | 4 ++++
kernel/irq/Kconfig | 4 ++++
kernel/irq/irqdesc.c | 7 +++++++
3 files changed, 15 insertions(+)
Index: tip/include/linux/irq.h
===================================================================
--- tip.orig/include/linux/irq.h
+++ tip/include/linux/irq.h
@@ -637,6 +637,10 @@ int arch_setup_hwirq(unsigned int irq, i
void arch_teardown_hwirq(unsigned int irq);
#endif
+#ifdef CONFIG_GENERIC_IRQ_LEGACY
+void irq_init_desc(unsigned int irq);
+#endif
+
#ifndef irq_reg_writel
# define irq_reg_writel(val, addr) writel(val, addr)
#endif
Index: tip/kernel/irq/Kconfig
===================================================================
--- tip.orig/kernel/irq/Kconfig
+++ tip/kernel/irq/Kconfig
@@ -5,6 +5,10 @@ menu "IRQ subsystem"
config MAY_HAVE_SPARSE_IRQ
bool
+# Legacy support, required for itanic
+config GENERIC_IRQ_LEGACY
+ bool
+
# Enable the generic irq autoprobe mechanism
config GENERIC_IRQ_PROBE
bool
Index: tip/kernel/irq/irqdesc.c
===================================================================
--- tip.orig/kernel/irq/irqdesc.c
+++ tip/kernel/irq/irqdesc.c
@@ -306,6 +306,13 @@ void irq_mark_irq(unsigned int irq)
mutex_unlock(&sparse_irq_lock);
}
+#ifdef CONFIG_GENERIC_IRQ_LEGACY
+void irq_init_desc(unsigned int irq)
+{
+ dynamic_irq_cleanup(irq);
+}
+#endif
+
#endif /* !CONFIG_SPARSE_IRQ */
/**
--
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