On Mon, 28 Sep 2015, Dave Hansen wrote:
> +/*
> + * State component 9: 32-bit PKRU register.
> + */
> +struct pkru {
> +     u32 pkru;
> +} __packed;
> +
> +struct pkru_state {
> +     union {
> +             struct pkru             pkru;
> +             u8                      pad_to_8_bytes[8];
> +     };

Why do you need two structs?

    struct pkru_state {
           u32 pkru;
           u32 pad;
    }

should be sufficient. So instead of

       xsave.pkru_state.pkru.pkru

you get the more obvious

       xsave.pkru_state.pkru

Hmm?

Thanks,

        tglx



      

       
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