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Re: [Xen-devel] [PATCH v4 04/10] Make MEM_ACCESS configurable

>>> On 31.05.18 at 23:48, <sstabellini@xxxxxxxxxx> wrote:
> --- a/xen/common/Kconfig
> +++ b/xen/common/Kconfig
> @@ -20,8 +20,16 @@ config HAS_DEVICE_TREE
>  config HAS_EX_TABLE
>       bool
> -config HAS_MEM_ACCESS
> -     bool
> +     def_bool n

Only "bool" please - there should be no defaults other than y for options 
prompts. Otherwise, if later an option gains a prompt, the user won't be
presented with the option to enable it when using one of the *oldconfig targets
(due to the previously recorded setting).

With that replaced
Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
also in case you follow Tamas'es suggestion and switch ...

> +config MEM_ACCESS
> +     def_bool y
> +     prompt "Memory Access and VM events" if !MEM_ACCESS_ALWAYS_ON

... the default here to MEM_ACCESS_ALWAYS_ON (or !ARM or X86).


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