[openib-general] [PATCH 31 of 53] ipath - forbid sending of bad packet sizes

[Bryan O'Sullivan]

Signed-off-by: Bryan O'Sullivan <bos at pathscale.com>

diff -r b098b021b6fd -r 4868daa7f215 drivers/infiniband/hw/ipath/ipath_ud.c
--- a/drivers/infiniband/hw/ipath/ipath_ud.c	Fri May 12 15:55:28 2006 -0700
+++ b/drivers/infiniband/hw/ipath/ipath_ud.c	Fri May 12 15:55:28 2006 -0700
@@ -273,6 +273,11 @@ int ipath_post_ud_send(struct ipath_qp *
 		}
 		len += wr->sg_list[i].length;
 		ss.num_sge++;
+	}
+	/* Check for invalid packet size. */
+	if (len > ipath_layer_get_ibmtu(dev->dd)) {
+		ret = -EINVAL;
+		goto bail;
 	}
 	extra_bytes = (4 - len) & 3;
 	nwords = (len + extra_bytes) >> 2;