linux-kernel - [PATCH 15/17] x86/hyperv: Make hv_vcpu_is

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Date:   Thu, 21 Mar 2019 15:00:07 -0700
From:   Andi Kleen <andi@...stfloor.org>
To:     x86@...nel.org
Cc:     akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
        Andi Kleen <ak@...ux.intel.com>, yi.y.sun@...ux.intel.com,
        kys@...rosoft.com, haiyangz@...rosoft.com
Subject: [PATCH 15/17] x86/hyperv: Make hv_vcpu_is_preempted visible

From: Andi Kleen <ak@...ux.intel.com>

This function is referrenced from assembler, so need to be marked
visible for LTO.

Cc: yi.y.sun@...ux.intel.com
Cc: kys@...rosoft.com
Cc: haiyangz@...rosoft.com
Fixes: 3a025de64bf8 x86/hyperv: Enable PV qspinlock for Hyper-V
Signed-off-by: Andi Kleen <ak@...ux.intel.com>
---
 arch/x86/hyperv/hv_spinlock.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/hyperv/hv_spinlock.c b/arch/x86/hyperv/hv_spinlock.c
index a861b0456b1a..07f21a06392f 100644
--- a/arch/x86/hyperv/hv_spinlock.c
+++ b/arch/x86/hyperv/hv_spinlock.c
@@ -56,7 +56,7 @@ static void hv_qlock_wait(u8 *byte, u8 val)
 /*
  * Hyper-V does not support this so far.
  */
-bool hv_vcpu_is_preempted(int vcpu)
+__visible bool hv_vcpu_is_preempted(int vcpu)
 {
 	return false;
 }
-- 
2.20.1