From: Bryan O'Sullivan Date: Thu, 15 Mar 2007 21:45:03 +0000 (-0700) Subject: IB/ipath: Discard multicast packets without a GRH X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=5a7d4eea9185c20275307fcd1077d6f9dfdab48a;p=linux-beck.git IB/ipath: Discard multicast packets without a GRH This patch fixes a bug where multicast packets without a GRH were not being dropped as per the IB spec. Signed-off-by: Ralph Campbell Signed-off-by: Bryan O'Sullivan Signed-off-by: Roland Dreier --- diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c index 9bec5a9b4557..f5604b876500 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs.c +++ b/drivers/infiniband/hw/ipath/ipath_verbs.c @@ -438,6 +438,10 @@ void ipath_ib_rcv(struct ipath_ibdev *dev, void *rhdr, void *data, struct ipath_mcast *mcast; struct ipath_mcast_qp *p; + if (lnh != IPATH_LRH_GRH) { + dev->n_pkt_drops++; + goto bail; + } mcast = ipath_mcast_find(&hdr->u.l.grh.dgid); if (mcast == NULL) { dev->n_pkt_drops++; @@ -445,8 +449,7 @@ void ipath_ib_rcv(struct ipath_ibdev *dev, void *rhdr, void *data, } dev->n_multicast_rcv++; list_for_each_entry_rcu(p, &mcast->qp_list, list) - ipath_qp_rcv(dev, hdr, lnh == IPATH_LRH_GRH, data, - tlen, p->qp); + ipath_qp_rcv(dev, hdr, 1, data, tlen, p->qp); /* * Notify ipath_multicast_detach() if it is waiting for us * to finish.