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From:   Sasha Levin <Alexander.Levin@microsoft.com>
To:     "stable@vger.kernel.org" <stable@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
CC:     Michael Kelley <mhkelley@outlook.com>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Peter Zijlstra <peterz@infradead.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        KY Srinivasan <kys@microsoft.com>,
        "martin.petersen@oracle.com" <martin.petersen@oracle.com>,
        "Michael Kelley (EOSG)" <Michael.H.Kelley@microsoft.com>,
        Ingo Molnar <mingo@kernel.org>,
        Sasha Levin <Alexander.Levin@microsoft.com>
Subject: [PATCH AUTOSEL for 4.15 188/189] cpumask: Make for_each_cpu_wrap()
 available on UP as well
Thread-Topic: [PATCH AUTOSEL for 4.15 188/189] cpumask: Make
 for_each_cpu_wrap() available on UP as well
Thread-Index: AQHTz5hlGMIUaEniZ0a+eADlYu9dGA==
Date:   Mon, 9 Apr 2018 00:19:17 +0000
Message-ID: <20180409001637.162453-188-alexander.levin@microsoft.com>
References: <20180409001637.162453-1-alexander.levin@microsoft.com>
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From: Michael Kelley <mhkelley@outlook.com>

[ Upstream commit d207af2eab3f8668b95ad02b21930481c42806fd ]

for_each_cpu_wrap() was originally added in the #else half of a
large "#if NR_CPUS =3D=3D 1" statement, but was omitted in the #if
half.  This patch adds the missing #if half to prevent compile
errors when NR_CPUS is 1.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Michael Kelley <mhkelley@outlook.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: kys@microsoft.com
Cc: martin.petersen@oracle.com
Cc: mikelley@microsoft.com
Fixes: c743f0a5c50f ("sched/fair, cpumask: Export for_each_cpu_wrap()")
Link: http://lkml.kernel.org/r/SN6PR1901MB2045F087F59450507D4FCC17CBF50@SN6=
PR1901MB2045.namprd19.prod.outlook.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 include/linux/cpumask.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
index 75b565194437..09b8d8aaa35f 100644
--- a/include/linux/cpumask.h
+++ b/include/linux/cpumask.h
@@ -170,6 +170,8 @@ static inline unsigned int cpumask_local_spread(unsigne=
d int i, int node)
 	for ((cpu) =3D 0; (cpu) < 1; (cpu)++, (void)mask)
 #define for_each_cpu_not(cpu, mask)		\
 	for ((cpu) =3D 0; (cpu) < 1; (cpu)++, (void)mask)
+#define for_each_cpu_wrap(cpu, mask, start)	\
+	for ((cpu) =3D 0; (cpu) < 1; (cpu)++, (void)mask, (void)(start))
 #define for_each_cpu_and(cpu, mask, and)	\
 	for ((cpu) =3D 0; (cpu) < 1; (cpu)++, (void)mask, (void)and)
 #else
--=20
2.15.1