linux-kernel - linux-next: build failure after merge of the akpm-current tree

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Date:	Mon, 13 Apr 2015 21:20:48 +1000
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	Andrew Morton <akpm@...ux-foundation.org>,
	Michael Ellerman <mpe@...erman.id.au>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	<linuxppc-dev@...ts.ozlabs.org>
Cc:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Ulrich Obergfell <uobergfe@...hat.com>,
	Anton Blanchard <anton@...ba.org>
Subject: linux-next: build failure after merge of the akpm-current tree

Hi Andrew,

After merging the akpm-current tree, today's linux-next build (powerpc
ppc64_defconfig) failed like this:

arch/powerpc/kernel/setup_64.c: In function 'disable_hardlockup_detector':
arch/powerpc/kernel/setup_64.c:796:2: error: implicit declaration of function 'watchdog_enable_hardlockup_detector' [-Werror=implicit-function-declaration]
  watchdog_enable_hardlockup_detector(false);
  ^

Caused by commit 069bb95b9e38 ("watchdog: introduce the
hardlockup_detector_disable() function") interacting with commit
c54b2bf1b5e9 ("powerpc: Add ppc64 hard lockup detector support") from
the powerpc-mpe tree.

I applied the following merge fix patch (hopefully that is all that is
required):

From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Mon, 13 Apr 2015 21:18:01 +1000
Subject: [PATCH] powerpc: merge fix for watchdog_enable_hardlockup_detector API change

Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
 arch/powerpc/kernel/setup_64.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index 7551e5692597..c69671c03c3b 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -793,7 +793,7 @@ u64 hw_nmi_get_sample_period(int watchdog_thresh)
  */
 static int __init disable_hardlockup_detector(void)
 {
-	watchdog_enable_hardlockup_detector(false);
+	hardlockup_detector_disable();
 
 	return 0;
 }
-- 
2.1.4

-- 
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au

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