linux-kernel - [PATCH v2] arm-cci: add cci_enable_port_for

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Date:   Mon, 12 Sep 2016 18:52:39 +0800
From:   Baoyou Xie <baoyou.xie@...aro.org>
To:     will.deacon@....com, suzuki.poulose@....com, olof@...om.net,
        mark.rutland@....com, bigeasy@...utronix.de, a.hajda@...sung.com
Cc:     linux-kernel@...r.kernel.org, arnd@...db.de, baoyou.xie@...aro.org,
        xie.baoyou@....com.cn
Subject: [PATCH v2] arm-cci: add cci_enable_port_for_self() declaration in arm-cci.h

We get 1 warning when building kernel with W=1:
drivers/bus/arm-cci.c:2027:25: warning: no previous prototype for 'cci_enable_port_for_self' [-Wmissing-prototypes]

In fact, this function is used in a few files,
but should be declared in a header file.

So this patch adds the declaration in arm-cci.h.

Signed-off-by: Baoyou Xie <baoyou.xie@...aro.org>
---
 include/linux/arm-cci.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/linux/arm-cci.h b/include/linux/arm-cci.h
index 521ec1f..626083b 100644
--- a/include/linux/arm-cci.h
+++ b/include/linux/arm-cci.h
@@ -39,6 +39,7 @@ extern int cci_ace_get_port(struct device_node *dn);
 extern int cci_disable_port_by_cpu(u64 mpidr);
 extern int __cci_control_port_by_device(struct device_node *dn, bool enable);
 extern int __cci_control_port_by_index(u32 port, bool enable);
+extern asmlinkage void __naked cci_enable_port_for_self(void);
 #else
 static inline int cci_ace_get_port(struct device_node *dn)
 {
@@ -54,6 +55,9 @@ static inline int __cci_control_port_by_index(u32 port, bool enable)
 {
 	return -ENODEV;
 }
+static inline void ci_enable_port_for_self(void)
+{
+}
 #endif
 
 #define cci_disable_port_by_device(dev) \
-- 
2.7.4