Re: [Xen-devel] [PATCH] xen/p2m: Export set_phys_to_machine.

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 06.09.13 at 16:00, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> wrote:
> We have already exported 'get_phys_to_machine' and there are
> third-party drivers that depend on this other symbol. As such
> lets make this balanced and also export this symbol.

I tend to disagree: Allowing external modules read access to some
internal state is quite different from also allowing them to alter it.

Jan

> Reported-by: Yuval Shaia <yuval.shaia@xxxxxxxxxx>
> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
> ---
>  arch/x86/xen/p2m.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c
> index 0d4ec35..cdb96bc 100644
> --- a/arch/x86/xen/p2m.c
> +++ b/arch/x86/xen/p2m.c
> @@ -847,6 +847,7 @@ bool set_phys_to_machine(unsigned long pfn, unsigned long 
> mfn)
>  
>       return true;
>  }
> +EXPORT_SYMBOL_GPL(set_phys_to_machine);
>  
>  #define M2P_OVERRIDE_HASH_SHIFT      10
>  #define M2P_OVERRIDE_HASH    (1 << M2P_OVERRIDE_HASH_SHIFT)
> -- 
> 1.8.3.1
> 
> 
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> http://lists.xen.org/xen-devel 




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