On 11/06/2015 12:51, Feng Wu wrote:
> +     union {
> +             struct {
> +                             /* bit 256 - Outstanding Notification */
> +                     u64     on      : 1,
> +                             /* bit 257 - Suppress Notification */
> +                             sn      : 1,
> +                             /* bit 271:258 - Reserved */
> +                             rsvd_1  : 14,
> +                             /* bit 279:272 - Notification Vector */
> +                             nv      : 8,
> +                             /* bit 287:280 - Reserved */
> +                             rsvd_2  : 8,
> +                             /* bit 319:288 - Notification Destination */
> +                             ndst    : 32;

Please do not use bitfields, Linus doesn't like them.  Use static
inlines instead to extract or set the fields from the control field.

Paolo

> +             };
> +             u64 control;
> +     };
> +     u32 rsvd[6];
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