linux-kernel - [PATCH] x86/Hyper-V: Fix reference of pv_ops with CONFIG

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Date:   Wed, 28 Aug 2019 16:07:47 +0800
From:   lantianyu1986@...il.com
To:     kys@...rosoft.com, haiyangz@...rosoft.com, sthemmin@...rosoft.com,
        sashal@...nel.org, tglx@...utronix.de, mingo@...hat.com,
        bp@...en8.de, hpa@...or.com, x86@...nel.org,
        michael.h.kelley@...rosoft.com
Cc:     Tianyu Lan <Tianyu.Lan@...rosoft.com>,
        linux-hyperv@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] x86/Hyper-V: Fix reference of pv_ops with CONFIG_PARAVIRT=N

From: Tianyu Lan <Tianyu.Lan@...rosoft.com>

hv_setup_sched_clock() references pv_ops and this should
be under CONFIG_PARAVIRT=Y. Fix it.

Signed-off-by: Tianyu Lan <Tianyu.Lan@...rosoft.com>
---
This patch is based on git://git.kernel.org/pub/scm/linux/
kernel/git/tip/tip.git timers/core.

 arch/x86/kernel/cpu/mshyperv.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c
index 53afd33990eb..267daad8c036 100644
--- a/arch/x86/kernel/cpu/mshyperv.c
+++ b/arch/x86/kernel/cpu/mshyperv.c
@@ -346,7 +346,9 @@ static void __init ms_hyperv_init_platform(void)
 
 void hv_setup_sched_clock(void *sched_clock)
 {
+#ifdef CONFIG_PARAVIRT
 	pv_ops.time.sched_clock = sched_clock;
+#endif
 }
 
 const __initconst struct hypervisor_x86 x86_hyper_ms_hyperv = {
-- 
2.14.5