[openib-general] Re: ipoib: question

[Michael S. Tsirkin]

Quoting r. Roland Dreier <rdreier at cisco.com>:
> Subject: Re: ipoib: question
> 
>  > where exactly does the following math come from?
>  > 
>  > static inline struct ipoib_neigh **to_ipoib_neigh(struct neighbour *neigh)
>  > {
>  >         return (struct ipoib_neigh **) (neigh->ha + 24 -
>  >                                         (offsetof(struct neighbour, ha) & 4));
>  > }
 
> The idea is that we want to get something aligned to 8 bytes.

Does & 4 do that?

-- 
MST