[PATCH] IB/ipath: disallow send of invalid packet sizes over UD
Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Cc: "Michael S. Tsirkin" <mst@mellanox.co.il> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -275,6 +275,11 @@ int ipath_post_ud_send(struct ipath_qp *qp, struct ib_send_wr *wr)
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len += wr->sg_list[i].length;
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ss.num_sge++;
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}
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/* Check for invalid packet size. */
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if (len > ipath_layer_get_ibmtu(dev->dd)) {
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ret = -EINVAL;
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goto bail;
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}
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extra_bytes = (4 - len) & 3;
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nwords = (len + extra_bytes) >> 2;
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