[PATCH/libmlx4] Fix generation of IBV_WC_GRH

[Jason Gunthorpe <jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>]

Byte swap was erroneously using short not long, so the test always
returns false as 0x80000000 is greater than 16 bits.

Signed-off-by: Jason Gunthorpe <jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
---
 src/cq.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

Found and tested on a MT25418

Looks like this is a cut and paste error from libmthca which has a
similar line.

Also confirmed that the kernel has a correct version.

diff --git a/src/cq.c b/src/cq.c
index 2d04883..bc53f9b 100644
--- a/src/cq.c
+++ b/src/cq.c
@@ -317,7 +317,7 @@ static int mlx4_poll_one(struct mlx4_cq *cq,
 		wc->src_qp	   = ntohl(cqe->g_mlpath_rqpn) & 0xffffff;
 		wc->dlid_path_bits = (ntohl(cqe->g_mlpath_rqpn) >> 24) & 0x7f;
 		wc->pkey_index     = ntohl(cqe->immed_rss_invalid) >> 16;
-		wc->wc_flags      |= ntohs(cqe->g_mlpath_rqpn) & 0x80000000 ?
+		wc->wc_flags      |= ntohl(cqe->g_mlpath_rqpn) & 0x80000000 ?
 			IBV_WC_GRH : 0;
 	}
 
-- 
1.7.1

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