linux-kernel - [PATCH] kernel/bounds: Provide prototype for foo

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Message-Id: <20180921142234.16882-1-kieran.bingham+renesas@ideasonboard.com>
Date:   Fri, 21 Sep 2018 15:22:33 +0100
From:   Kieran Bingham <kieran.bingham+renesas@...asonboard.com>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     linux-renesas-soc@...r.kernel.org,
        Kieran Bingham <kieran.bingham+renesas@...asonboard.com>,
        stable@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
        Kate Stewart <kstewart@...uxfoundation.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Philippe Ombredanne <pombredanne@...b.com>,
        linux-kernel@...r.kernel.org (open list)
Subject: [PATCH] kernel/bounds: Provide prototype for foo

kernel/bounds.c is recompiled on every build, and shows the following
warning when compiling with W=1:

  CC      kernel/bounds.s
linux/kernel/bounds.c:16:6: warning: no previous prototype for ‘foo’ [-Wmissing-prototypes]
 void foo(void)
      ^~~

Provide a prototype to satisfy the compiler.

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@...asonboard.com>
Cc: stable@...r.kernel.org

---
I compile all of my incremental builds with W=1, which allows me to know
instantly if I add a new compiler warning in code I generate.

This warning always comes up and seems trivial to clean up.
---
 kernel/bounds.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/kernel/bounds.c b/kernel/bounds.c
index c373e887c066..60136d937800 100644
--- a/kernel/bounds.c
+++ b/kernel/bounds.c
@@ -13,6 +13,8 @@
 #include <linux/log2.h>
 #include <linux/spinlock_types.h>
 
+void foo(void);
+
 void foo(void)
 {
 	/* The enum constants to put into include/generated/bounds.h */
-- 
2.17.1