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svcrdma: Remove svc_rdma_xdr_decode_deferred_req()

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svc_rdma_xdr_decode_deferred_req() indexes an array with an
un-byte-swapped value off the wire. Fortunately this function
isn't used anywhere, so simply remove it.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Chuck Lever 2015-05-26 13:49:07 -04:00 committed by J. Bruce Fields
parent 3f87d5d6ac
commit da7049f834
2 changed files with 0 additions and 57 deletions
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1
include/linux/sunrpc/svc_rdma.h
View File

@ -182,7 +182,6 @@ struct svcxprt_rdma {
/* svc_rdma_marshal.c */
extern int svc_rdma_xdr_decode_req(struct rpcrdma_msg **, struct svc_rqst *);
extern int svc_rdma_xdr_decode_deferred_req(struct svc_rqst *);
extern int svc_rdma_xdr_encode_error(struct svcxprt_rdma *,
struct rpcrdma_msg *,
enum rpcrdma_errcode, u32 *);

56
net/sunrpc/xprtrdma/svc_rdma_marshal.c
View File

@ -211,62 +211,6 @@ int svc_rdma_xdr_decode_req(struct rpcrdma_msg **rdma_req,
return hdr_len;
}
int svc_rdma_xdr_decode_deferred_req(struct svc_rqst *rqstp)
{
struct rpcrdma_msg *rmsgp = NULL;
struct rpcrdma_read_chunk *ch;
struct rpcrdma_write_array *ary;
u32 *va;
u32 hdrlen;
dprintk("svcrdma: processing deferred RDMA header on rqstp=%p\n",
rqstp);
rmsgp = (struct rpcrdma_msg *)rqstp->rq_arg.head[0].iov_base;
/* Pull in the extra for the padded case and bump our pointer */
if (rmsgp->rm_type == RDMA_MSGP) {
va = &rmsgp->rm_body.rm_padded.rm_pempty[4];
rqstp->rq_arg.head[0].iov_base = va;
hdrlen = (u32)((unsigned long)va - (unsigned long)rmsgp);
rqstp->rq_arg.head[0].iov_len -= hdrlen;
return hdrlen;
}
/*
* Skip all chunks to find RPC msg. These were previously processed
*/
va = &rmsgp->rm_body.rm_chunks[0];
/* Skip read-list */
for (ch = (struct rpcrdma_read_chunk *)va;
ch->rc_discrim != xdr_zero; ch++);
va = (u32 *)&ch->rc_position;
/* Skip write-list */
ary = (struct rpcrdma_write_array *)va;
if (ary->wc_discrim == xdr_zero)
va = (u32 *)&ary->wc_nchunks;
else
/*
* rs_length is the 2nd 4B field in wc_target and taking its
* address skips the list terminator
*/
va = (u32 *)&ary->wc_array[ary->wc_nchunks].wc_target.rs_length;
/* Skip reply-array */
ary = (struct rpcrdma_write_array *)va;
if (ary->wc_discrim == xdr_zero)
va = (u32 *)&ary->wc_nchunks;
else
va = (u32 *)&ary->wc_array[ary->wc_nchunks];
rqstp->rq_arg.head[0].iov_base = va;
hdrlen = (unsigned long)va - (unsigned long)rmsgp;
rqstp->rq_arg.head[0].iov_len -= hdrlen;
return hdrlen;
}
int svc_rdma_xdr_encode_error(struct svcxprt_rdma *xprt,
struct rpcrdma_msg *rmsgp,
enum rpcrdma_errcode err, u32 *va)