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SubjectRe: [PATCH 15/17] x86/hyperv: Make hv_vcpu_is_preempted visible
On 19-03-21 15:00:07, Andi Kleen wrote:
> From: Andi Kleen <ak@linux.intel.com>
>
> This function is referrenced from assembler, so need to be marked
> visible for LTO.
>
> Cc: yi.y.sun@linux.intel.com
> Cc: kys@microsoft.com
> Cc: haiyangz@microsoft.com
> Fixes: 3a025de64bf8 x86/hyperv: Enable PV qspinlock for Hyper-V
> Signed-off-by: Andi Kleen <ak@linux.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;
> }

Reviewed-by: Yi Sun <yi.y.sun@linux.intel.com>

> --
> 2.20.1

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