[PATCH v4 4/7] genirq: Export NMI APIs for qcom-wdt

[Mayank Rungta <mrungta@google.com>]

Currently, request_nmi(), free_nmi(), enable_nmi(), and disable_nmi() are
restricted to built-in kernel code because they are not exported.

Export these symbols with EXPORT_SYMBOL_FOR_MODULES() restricted to the
qcom-wdt module so it can register and manage its pretimeout NMI when
built as a loadable module.

Signed-off-by: Mayank Rungta <mrungta@google.com>
---
 kernel/irq/manage.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 073fd3595d2c..ace4d2796382 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -852,6 +852,7 @@ void disable_nmi(unsigned int irq)
 	if (!__disable_irq_nosync(irq))
 		__synchronize_nmi(desc, true);
 }
+EXPORT_SYMBOL_FOR_MODULES(disable_nmi, "qcom-wdt");
 
 void __enable_irq(struct irq_desc *desc)
 {
@@ -919,6 +920,7 @@ void enable_nmi(unsigned int irq)
 {
 	enable_irq(irq);
 }
+EXPORT_SYMBOL_FOR_MODULES(enable_nmi, "qcom-wdt");
 
 static int set_irq_wake_real(unsigned int irq, unsigned int on)
 {
@@ -2189,6 +2191,7 @@ const void *free_nmi(unsigned int irq, void *dev_id)
 
 	return __cleanup_nmi(irq, desc);
 }
+EXPORT_SYMBOL_FOR_MODULES(free_nmi, "qcom-wdt");
 
 /**
  * request_threaded_irq - allocate an interrupt line
@@ -2455,6 +2458,7 @@ int request_nmi(unsigned int irq, irq_handler_t handler,
 
 	return retval;
 }
+EXPORT_SYMBOL_FOR_MODULES(request_nmi, "qcom-wdt");
 
 void enable_percpu_irq(unsigned int irq, unsigned int type)
 {
-- 
2.56.0.611.g1030f0b940-goog