Re: [PATCH] xsave: export get_xsave_addr

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On 28/11/2014 10:28, Tiejun Chen wrote:
> After commit, 1d7fe1d1, "KVM: x86: support XSAVES usage in the host",
> is introduced,
> 
>   ...
>   Building modules, stage 2.
>   MODPOST 20 modules
> ERROR: "get_xsave_addr" [arch/x86/kvm/kvm.ko] undefined!
> make[1]: *** [__modpost] Error 1
> make: *** [modules] Error 2
> 
> so we need to export get_xsave_addr() while using KVM as
> a module.
> 
> Signed-off-by: Tiejun Chen <tiejun.chen@xxxxxxxxx>
> ---
> 
> I'm not sure if this is already fixed so just post in advance.

Yes, it is fixed---Stephen Rothwell's linux-next testing caught it
immediately.  Pushing the XSAVES patch was unintended, since it hadn't
been tested nor reviewed.

Paolo

> 
>  arch/x86/kernel/xsave.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/x86/kernel/xsave.c b/arch/x86/kernel/xsave.c
> index 4c540c4..0de1fae 100644
> --- a/arch/x86/kernel/xsave.c
> +++ b/arch/x86/kernel/xsave.c
> @@ -738,3 +738,4 @@ void *get_xsave_addr(struct xsave_struct *xsave, int xstate)
>  
>  	return (void *)xsave + xstate_comp_offsets[feature];
>  }
> +EXPORT_SYMBOL_GPL(get_xsave_addr);
> 
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