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| author |   Chuck Lever <chuck.lever@oracle.com> | 2015-01-21 11:02:29 -0500 |
|---|---|---|
| committer |   Anna Schumaker <Anna.Schumaker@Netapp.com> | 2015-01-30 10:47:48 -0500 |
| commit | f2846481b4bf758cf7c3fe8f24b35950306f1db2 (patch) | |
| tree | e0d5e559cbcef05e8893a7966693bb89f89c251f | |
| parent | xprtrdma: Display XIDs in host byte order (diff) | |
| download | linux-dev-f2846481b4bf758cf7c3fe8f24b35950306f1db2.tar.xz linux-dev-f2846481b4bf758cf7c3fe8f24b35950306f1db2.zip | |
xprtrdma: Clean up hdrlen
Clean up: Replace naked integers with a documenting macro.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
| -rw-r--r-- | include/linux/sunrpc/rpc_rdma.h | 5 | ||||
| -rw-r--r-- | net/sunrpc/xprtrdma/rpc_rdma.c | 12 |
2 files changed, 11 insertions, 6 deletions
diff --git a/include/linux/sunrpc/rpc_rdma.h b/include/linux/sunrpc/rpc_rdma.h index 1578ed241c19..f33c5a4d6fe4 100644 --- a/include/linux/sunrpc/rpc_rdma.h +++ b/include/linux/sunrpc/rpc_rdma.h @@ -98,7 +98,10 @@ struct rpcrdma_msg { } rm_body; }; -#define RPCRDMA_HDRLEN_MIN 28 +/* + * Smallest RPC/RDMA header: rm_xid through rm_type, then rm_nochunks + */ +#define RPCRDMA_HDRLEN_MIN (sizeof(__be32) * 7) enum rpcrdma_errcode { ERR_VERS = 1, diff --git a/net/sunrpc/xprtrdma/rpc_rdma.c b/net/sunrpc/xprtrdma/rpc_rdma.c index 150dd7641803..dcf5ebc3d373 100644 --- a/net/sunrpc/xprtrdma/rpc_rdma.c +++ b/net/sunrpc/xprtrdma/rpc_rdma.c @@ -472,7 +472,7 @@ rpcrdma_marshal_req(struct rpc_rqst *rqst) return -EIO; } - hdrlen = 28; /*sizeof *headerp;*/ + hdrlen = RPCRDMA_HDRLEN_MIN; padlen = 0; /* @@ -748,7 +748,7 @@ rpcrdma_reply_handler(struct rpcrdma_rep *rep) } return; } - if (rep->rr_len < 28) { + if (rep->rr_len < RPCRDMA_HDRLEN_MIN) { dprintk("RPC: %s: short/invalid reply\n", __func__); goto repost; } @@ -830,8 +830,9 @@ repost: } else { /* else ordinary inline */ rdmalen = 0; - iptr = (__be32 *)((unsigned char *)headerp + 28); - rep->rr_len -= 28; /*sizeof *headerp;*/ + iptr = (__be32 *)((unsigned char *)headerp + + RPCRDMA_HDRLEN_MIN); + rep->rr_len -= RPCRDMA_HDRLEN_MIN; status = rep->rr_len; } /* Fix up the rpc results for upper layer */ @@ -845,7 +846,8 @@ repost: headerp->rm_body.rm_chunks[2] != xdr_one || req->rl_nchunks == 0) goto badheader; - iptr = (__be32 *)((unsigned char *)headerp + 28); + iptr = (__be32 *)((unsigned char *)headerp + + RPCRDMA_HDRLEN_MIN); rdmalen = rpcrdma_count_chunks(rep, req->rl_nchunks, 0, &iptr); if (rdmalen < 0) goto badheader; |