linux-kernel - RE: FRV build failure with latest kernel

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Date:	Wed, 6 Aug 2014 20:37:14 +0000
From:	"Bueso, Davidlohr" <davidlohr@...com>
To:	Guenter Roeck <linux@...ck-us.net>,
	David Howells <dhowells@...hat.com>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: FRV build failure with latest kernel


________________________________________
From: Guenter Roeck [linux@...ck-us.net]
Sent: Wednesday, August 06, 2014 6:59 AM
To: David Howells
Cc: linux-kernel@...r.kernel.org; Bueso, Davidlohr
Subject: FRV build failure with latest kernel

Building frv:defconfig ... failed
--------------
Error log:
In file included from kernel/locking/mutex.c:28:0:
kernel/locking/mcs_spinlock.h: In function 'mcs_spin_lock':
kernel/locking/mcs_spinlock.h:87:2: error: implicit declaration of function 'cpu_relax_lowlatency' [-Werror=implicit-function-declaration]https://lkml.org/lkml/2014/8/5/442
cc1: some warnings being treated as errors
make[2]: *** [kernel/locking/mutex.o] Error 1

Due to commit 3a6bfbc91d (arch, locking: Ciao arch_mutex_cpu_relax()), which missed frv.

Yeah, I sent out the fix yesterday: https://lkml.org/lkml/2014/8/5/442


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