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| author | Chuck Lever <chuck.lever@oracle.com> | 2017-02-07 11:58:40 -0500 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2017-02-08 14:41:58 -0500 |
| commit | c2ccf64a6c4bf3bcbf4e6e6b94a51500991022a1 (patch) | |
| tree | 810d9839608bad02bb37ca7176263885bff0df97 /net | |
| parent | 647e18e3bd0308b38d5341fc08cd70ed1ce28a71 (diff) | |
| download | linux-c2ccf64a6c4bf3bcbf4e6e6b94a51500991022a1.tar.gz linux-c2ccf64a6c4bf3bcbf4e6e6b94a51500991022a1.tar.xz | |
svcrdma: Clean up backchannel send header encoding
Replace C structure-based XDR decoding with pointer arithmetic.
Pointer arithmetic is considered more portable.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/sunrpc/xprtrdma/svc_rdma_backchannel.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/net/sunrpc/xprtrdma/svc_rdma_backchannel.c b/net/sunrpc/xprtrdma/svc_rdma_backchannel.c index 288e35c2d8f4..b1bc7a796782 100644 --- a/net/sunrpc/xprtrdma/svc_rdma_backchannel.c +++ b/net/sunrpc/xprtrdma/svc_rdma_backchannel.c @@ -200,19 +200,20 @@ rpcrdma_bc_send_request(struct svcxprt_rdma *rdma, struct rpc_rqst *rqst) { struct rpc_xprt *xprt = rqst->rq_xprt; struct rpcrdma_xprt *r_xprt = rpcx_to_rdmax(xprt); - struct rpcrdma_msg *headerp = (struct rpcrdma_msg *)rqst->rq_buffer; + __be32 *p; int rc; /* Space in the send buffer for an RPC/RDMA header is reserved * via xprt->tsh_size. */ - headerp->rm_xid = rqst->rq_xid; - headerp->rm_vers = rpcrdma_version; - headerp->rm_credit = cpu_to_be32(r_xprt->rx_buf.rb_bc_max_requests); - headerp->rm_type = rdma_msg; - headerp->rm_body.rm_chunks[0] = xdr_zero; - headerp->rm_body.rm_chunks[1] = xdr_zero; - headerp->rm_body.rm_chunks[2] = xdr_zero; + p = rqst->rq_buffer; + *p++ = rqst->rq_xid; + *p++ = rpcrdma_version; + *p++ = cpu_to_be32(r_xprt->rx_buf.rb_bc_max_requests); + *p++ = rdma_msg; + *p++ = xdr_zero; + *p++ = xdr_zero; + *p = xdr_zero; #ifdef SVCRDMA_BACKCHANNEL_DEBUG pr_info("%s: %*ph\n", __func__, 64, rqst->rq_buffer); |