linux-kernel - [PATCH 3/4] ARM: export set_irq_flags/irq_set_chip_and

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Date:	Wed, 22 Aug 2012 16:29:39 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	Russell King <rmk+kernel@....linux.org.uk>
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Arnd Bergmann <arnd@...db.de>,
	Magnus Damm <damm@...nsource.se>,
	Linus Walleij <linus.walleij@...aro.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: [PATCH 3/4] ARM: export set_irq_flags/irq_set_chip_and_handler

The recently added Emma Mobile GPIO driver calls set_irq_flags
and irq_set_chip_and_handler for the interrupts it exports and
it can be built as a module, which currently fails with

ERROR: "set_irq_flags" [drivers/gpio/gpio-em.ko] undefined!
ERROR: "irq_set_chip_and_handler_name" [drivers/gpio/gpio-em.ko] undefined!

We either need to replace the call to set_irq_flags with something
else or export that function. This patch does the latter.

Signed-off-by: Arnd Bergmann <arnd@...db.de>
Cc: Magnus Damm <damm@...nsource.se>
Cc: Linus Walleij <linus.walleij@...aro.org>
Cc: Rafael J. Wysocki <rjw@...k.pl>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Russell King <rmk+kernel@....linux.org.uk>
---
 arch/arm/kernel/irq.c |    2 ++
 kernel/irq/chip.c     |    2 ++
 2 files changed, 4 insertions(+)

diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c
index 16cedb4..8961650 100644
--- a/arch/arm/kernel/irq.c
+++ b/arch/arm/kernel/irq.c
@@ -34,6 +34,7 @@
 #include <linux/list.h>
 #include <linux/kallsyms.h>
 #include <linux/proc_fs.h>
+#include <linux/export.h>
 
 #include <asm/exception.h>
 #include <asm/mach/arch.h>
@@ -109,6 +110,7 @@ void set_irq_flags(unsigned int irq, unsigned int iflags)
 	/* Order is clear bits in "clr" then set bits in "set" */
 	irq_modify_status(irq, clr, set & ~clr);
 }
+EXPORT_SYMBOL_GPL(set_irq_flags);
 
 void __init init_IRQ(void)
 {
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index eebd6d5..3c3cea3 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -13,6 +13,7 @@
 #include <linux/irq.h>
 #include <linux/msi.h>
 #include <linux/module.h>
+#include <linux/export.h>
 #include <linux/interrupt.h>
 #include <linux/kernel_stat.h>
 
@@ -671,6 +672,7 @@ irq_set_chip_and_handler_name(unsigned int irq, struct irq_chip *chip,
 	irq_set_chip(irq, chip);
 	__irq_set_handler(irq, handle, 0, name);
 }
+EXPORT_SYMBOL_GPL(irq_set_chip_and_handler_name);
 
 void irq_modify_status(unsigned int irq, unsigned long clr, unsigned long set)
 {
-- 
1.7.10

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