[PATCH v4 07/10] sunrpc: remove unused xpo_prep_reply_hdr callback

Vasily Averin
2018-12-24T11:46:05Z

xpo_prep_reply_hdr are not used now.

It was defined for tcp transport only, however it cannot be
called indirectly, so let's move it to its caller and
remove unused callback.

Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
---
include/linux/sunrpc/svc_rdma.h | 1 -
include/linux/sunrpc/svc_xprt.h | 1 -
net/sunrpc/svc.c | 11 +++++++++++
net/sunrpc/svcsock.c | 17 -----------------
net/sunrpc/xprtrdma/svc_rdma_sendto.c | 4 ----
net/sunrpc/xprtrdma/svc_rdma_transport.c | 1 -
6 files changed, 11 insertions(+), 24 deletions(-)

diff --git a/include/linux/sunrpc/svc_rdma.h b/include/linux/sunrpc/svc_rdma.h
index e6e26918504c..cc2f25a10dcf 100644
--- a/include/linux/sunrpc/svc_rdma.h
+++ b/include/linux/sunrpc/svc_rdma.h
@@ -192,7 +192,6 @@ extern int svc_rdma_sendto(struct svc_rqst *);
extern int svc_rdma_create_listen(struct svc_serv *, int, struct sockaddr *);
extern void svc_sq_reap(struct svcxprt_rdma *);
extern void svc_rq_reap(struct svcxprt_rdma *);
-extern void svc_rdma_prep_reply_hdr(struct svc_rqst *);

extern struct svc_xprt_class svc_rdma_class;
#ifdef CONFIG_SUNRPC_BACKCHANNEL
diff --git a/include/linux/sunrpc/svc_xprt.h b/include/linux/sunrpc/svc_xprt.h
index 6b7a86c4d6e6..b3f9577e17d6 100644
--- a/include/linux/sunrpc/svc_xprt.h
+++ b/include/linux/sunrpc/svc_xprt.h
@@ -20,7 +20,6 @@ struct svc_xprt_ops {
struct svc_xprt *(*xpo_accept)(struct svc_xprt *);
int (*xpo_has_wspace)(struct svc_xprt *);
int (*xpo_recvfrom)(struct svc_rqst *);
- void (*xpo_prep_reply_hdr)(struct svc_rqst *);
int (*xpo_sendto)(struct svc_rqst *);
void (*xpo_release_rqst)(struct svc_rqst *);
void (*xpo_detach)(struct svc_xprt *);
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index fb647bc01fc5..1e6701c065f9 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -1144,6 +1144,17 @@ void svc_printk(struct svc_rqst *rqstp, const char *fmt, ...)
static __printf(2,3) void svc_printk(struct svc_rqst *rqstp, const char *fmt, ...) {}
#endif

+/*
+ * Setup response header for TCP, it has a 4B record length field.
+ */
+static void svc_tcp_prep_reply_hdr(struct svc_rqst *rqstp)
+{
+ struct kvec *resv = &rqstp->rq_res.head[0];
+
+ /* tcp needs a space for the record length... */
+ svc_putnl(resv, 0);
+}
+
/*
* Common routine for processing the RPC request.
*/
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index 19acf10dfca1..c7ae1ed5324f 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -610,10 +610,6 @@ svc_udp_sendto(struct svc_rqst *rqstp)
return error;
}

-static void svc_udp_prep_reply_hdr(struct svc_rqst *rqstp)
-{
-}
-
static int svc_udp_has_wspace(struct svc_xprt *xprt)
{
struct svc_sock *svsk = container_of(xprt, struct svc_sock, sk_xprt);
@@ -657,7 +653,6 @@ static const struct svc_xprt_ops svc_udp_ops = {
.xpo_release_rqst = svc_release_udp_skb,
.xpo_detach = svc_sock_detach,
.xpo_free = svc_sock_free,
- .xpo_prep_reply_hdr = svc_udp_prep_reply_hdr,
.xpo_has_wspace = svc_udp_has_wspace,
.xpo_accept = svc_udp_accept,
.xpo_secure_port = svc_sock_secure_port,
@@ -1163,17 +1158,6 @@ static int svc_tcp_sendto(struct svc_rqst *rqstp)
return sent;
}

-/*
- * Setup response header. TCP has a 4B record length field.
- */
-void svc_tcp_prep_reply_hdr(struct svc_rqst *rqstp)
-{
- struct kvec *resv = &rqstp->rq_res.head[0];
-
- /* tcp needs a space for the record length... */
- svc_putnl(resv, 0);
-}
-
static struct svc_xprt *svc_tcp_create(struct svc_serv *serv,
struct net *net,
struct sockaddr *sa, int salen,
@@ -1189,7 +1173,6 @@ static const struct svc_xprt_ops svc_tcp_ops = {
.xpo_release_rqst = svc_release_skb,
.xpo_detach = svc_tcp_sock_detach,
.xpo_free = svc_sock_free,
- .xpo_prep_reply_hdr = svc_tcp_prep_reply_hdr,
.xpo_has_wspace = svc_tcp_has_wspace,
.xpo_accept = svc_tcp_accept,
.xpo_secure_port = svc_sock_secure_port,
diff --git a/net/sunrpc/xprtrdma/svc_rdma_sendto.c b/net/sunrpc/xprtrdma/svc_rdma_sendto.c
index 8602a5f1b515..e8016c428890 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_sendto.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_sendto.c
@@ -741,10 +741,6 @@ static int svc_rdma_send_error_msg(struct svcxprt_rdma *rdma,
return 0;
}

-void svc_rdma_prep_reply_hdr(struct svc_rqst *rqstp)
-{
-}
-
/**
* svc_rdma_sendto - Transmit an RPC reply
* @rqstp: processed RPC request, reply XDR already in ::rq_res
diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c
index 085933cc6b3e..924c17d46903 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_transport.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c
@@ -85,7 +85,6 @@ static const struct svc_xprt_ops svc_rdma_ops = {
.xpo_release_rqst = svc_rdma_release_rqst,
.xpo_detach = svc_rdma_detach,
.xpo_free = svc_rdma_free,
- .xpo_prep_reply_hdr = svc_rdma_prep_reply_hdr,
.xpo_has_wspace = svc_rdma_has_wspace,
.xpo_accept = svc_rdma_accept,
.xpo_secure_port = svc_rdma_secure_port,
--
2.17.1