linux-kernel - [PATCH 41/58] init/calibrate.c: Add prototype for __weak stub of calibrate_delay_is

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Date:	Sun, 18 Nov 2012 21:28:20 -0800
From:	Josh Triplett <josh@...htriplett.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jack Steiner <steiner@....com>,
	Josh Triplett <josh@...htriplett.org>,
	Ingo Molnar <mingo@...e.hu>,
	Diwakar Tundlam <dtundlam@...dia.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH 41/58] init/calibrate.c: Add prototype for __weak stub of calibrate_delay_is_known

init/calibrate.c defines an empty stub of calibrate_delay_is_known with
__attribute__((weak)), for use on architectures without an alternate
implementation.  Define a prototype of that function, to satisfy gcc
(-Wmissing-prototypes) and Sparse (-Wdecl).

init/calibrate.c:257:150: warning: no previous prototype for ‘calibrate_delay_is_known’ [-Wmissing-prototypes]

Signed-off-by: Josh Triplett <josh@...htriplett.org>
---
 init/calibrate.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/init/calibrate.c b/init/calibrate.c
index fda0a7b..7177627 100644
--- a/init/calibrate.c
+++ b/init/calibrate.c
@@ -254,6 +254,7 @@ static DEFINE_PER_CPU(unsigned long, cpu_loops_per_jiffy) = { 0 };
  * Architectures should override this function if a faster calibration
  * method is available.
  */
+unsigned long calibrate_delay_is_known(void);
 unsigned long __attribute__((weak)) __cpuinit calibrate_delay_is_known(void)
 {
 	return 0;
-- 
1.7.10.4

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