[ofa-general] Re: [PATCH ibverbs] Make the gid argument to ibv_attach_mcast and ibv_detach_mcast const

[Roland Dreier]

 > -int ibv_attach_mcast(struct ibv_qp *qp, union ibv_gid *gid, uint16_t lid);
 > +int ibv_attach_mcast(struct ibv_qp *qp, const union ibv_gid *gid, uint16_t lid);

Seems fine to me... I can't think of any risk of this breaking
compatibility anywhere, but maybe I'm not being paranoid enough?

 - R.