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authorSteve Wise <swise@opengridcomputing.com>2010-08-11 12:47:08 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2010-08-11 12:47:08 -0400
commit7a8b80eb38b248cfdf84048dad12073d5cfba3e6 (patch)
treed66e1ec8f4b95a1d17dad42af67dd1137a6ece77 /net
parent5d7ca35a182a626f8ed5596023ad42eb219a332e (diff)
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xprtrdma: Do not truncate iova_start values in frmr registrations.
A bad cast causes the iova_start, which in this case is a 64b DMA bus address, to be truncated on 32b systems. This breaks frmrs on 32b systems. No cast is needed. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net')
-rw-r--r--net/sunrpc/xprtrdma/verbs.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
index 27015c6d8eb..3bdbd9f3b88 100644
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -1490,7 +1490,7 @@ rpcrdma_register_frmr_external(struct rpcrdma_mr_seg *seg,
memset(&frmr_wr, 0, sizeof frmr_wr);
frmr_wr.opcode = IB_WR_FAST_REG_MR;
frmr_wr.send_flags = 0; /* unsignaled */
- frmr_wr.wr.fast_reg.iova_start = (unsigned long)seg1->mr_dma;
+ frmr_wr.wr.fast_reg.iova_start = seg1->mr_dma;
frmr_wr.wr.fast_reg.page_list = seg1->mr_chunk.rl_mw->r.frmr.fr_pgl;
frmr_wr.wr.fast_reg.page_list_len = i;
frmr_wr.wr.fast_reg.page_shift = PAGE_SHIFT;