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Message-ID: <146661141539.15011.1341051886880487259.stgit@warthog.procyon.org.uk>
Date: Wed, 22 Jun 2016 17:03:35 +0100
From: David Howells <dhowells@...hat.com>
To: davem@...emloft.net
Cc: dhowells@...hat.com, netdev@...r.kernel.org,
linux-afs@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH net-next 06/14] rxrpc: Pass sk_buff * rather than
rxrpc_host_header * to functions [ver #2]
Pass a pointer to struct sk_buff rather than struct rxrpc_host_header to
functions so that they can in the future get at transport protocol parameters
rather than just RxRPC parameters.
Signed-off-by: David Howells <dhowells@...hat.com>
---
net/rxrpc/ar-internal.h | 6 +++---
net/rxrpc/call_accept.c | 4 ++--
net/rxrpc/call_object.c | 21 +++++++++++---------
net/rxrpc/conn_object.c | 49 ++++++++++++++++++++++++-----------------------
net/rxrpc/input.c | 7 +++----
5 files changed, 44 insertions(+), 43 deletions(-)
diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h
index 4ca99445e0b7..60ba22f56957 100644
--- a/net/rxrpc/ar-internal.h
+++ b/net/rxrpc/ar-internal.h
@@ -544,7 +544,7 @@ struct rxrpc_call *rxrpc_new_client_call(struct rxrpc_sock *,
unsigned long, gfp_t);
struct rxrpc_call *rxrpc_incoming_call(struct rxrpc_sock *,
struct rxrpc_connection *,
- struct rxrpc_host_header *);
+ struct sk_buff *);
void rxrpc_release_call(struct rxrpc_call *);
void rxrpc_release_calls_on_socket(struct rxrpc_sock *);
void __rxrpc_put_call(struct rxrpc_call *);
@@ -574,9 +574,9 @@ int rxrpc_connect_call(struct rxrpc_sock *, struct rxrpc_conn_parameters *,
void rxrpc_put_connection(struct rxrpc_connection *);
void __exit rxrpc_destroy_all_connections(void);
struct rxrpc_connection *rxrpc_find_connection(struct rxrpc_transport *,
- struct rxrpc_host_header *);
+ struct sk_buff *);
extern struct rxrpc_connection *
-rxrpc_incoming_connection(struct rxrpc_transport *, struct rxrpc_host_header *);
+rxrpc_incoming_connection(struct rxrpc_transport *, struct sk_buff *);
static inline bool rxrpc_conn_is_client(const struct rxrpc_connection *conn)
{
diff --git a/net/rxrpc/call_accept.c b/net/rxrpc/call_accept.c
index 553b67c144e5..5a70dc4e28c6 100644
--- a/net/rxrpc/call_accept.c
+++ b/net/rxrpc/call_accept.c
@@ -110,7 +110,7 @@ static int rxrpc_accept_incoming_call(struct rxrpc_local *local,
goto error;
}
- conn = rxrpc_incoming_connection(trans, &sp->hdr);
+ conn = rxrpc_incoming_connection(trans, skb);
rxrpc_put_transport(trans);
if (IS_ERR(conn)) {
_debug("no conn");
@@ -118,7 +118,7 @@ static int rxrpc_accept_incoming_call(struct rxrpc_local *local,
goto error;
}
- call = rxrpc_incoming_call(rx, conn, &sp->hdr);
+ call = rxrpc_incoming_call(rx, conn, skb);
rxrpc_put_connection(conn);
if (IS_ERR(call)) {
_debug("no call");
diff --git a/net/rxrpc/call_object.c b/net/rxrpc/call_object.c
index 5c2dceaf6a9c..d83f2cbb80a9 100644
--- a/net/rxrpc/call_object.c
+++ b/net/rxrpc/call_object.c
@@ -421,8 +421,9 @@ found_user_ID_now_present:
*/
struct rxrpc_call *rxrpc_incoming_call(struct rxrpc_sock *rx,
struct rxrpc_connection *conn,
- struct rxrpc_host_header *hdr)
+ struct sk_buff *skb)
{
+ struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
struct rxrpc_call *call, *candidate;
struct rb_node **p, *parent;
u32 call_id;
@@ -435,13 +436,13 @@ struct rxrpc_call *rxrpc_incoming_call(struct rxrpc_sock *rx,
if (!candidate)
return ERR_PTR(-EBUSY);
- candidate->socket = rx;
- candidate->conn = conn;
- candidate->cid = hdr->cid;
- candidate->call_id = hdr->callNumber;
- candidate->channel = hdr->cid & RXRPC_CHANNELMASK;
- candidate->rx_data_post = 0;
- candidate->state = RXRPC_CALL_SERVER_ACCEPTING;
+ candidate->socket = rx;
+ candidate->conn = conn;
+ candidate->cid = sp->hdr.cid;
+ candidate->call_id = sp->hdr.callNumber;
+ candidate->channel = sp->hdr.cid & RXRPC_CHANNELMASK;
+ candidate->rx_data_post = 0;
+ candidate->state = RXRPC_CALL_SERVER_ACCEPTING;
if (conn->security_ix > 0)
candidate->state = RXRPC_CALL_SERVER_SECURING;
@@ -450,7 +451,7 @@ struct rxrpc_call *rxrpc_incoming_call(struct rxrpc_sock *rx,
/* set the channel for this call */
call = conn->channels[candidate->channel];
_debug("channel[%u] is %p", candidate->channel, call);
- if (call && call->call_id == hdr->callNumber) {
+ if (call && call->call_id == sp->hdr.callNumber) {
/* already set; must've been a duplicate packet */
_debug("extant call [%d]", call->state);
ASSERTCMP(call->conn, ==, conn);
@@ -488,7 +489,7 @@ struct rxrpc_call *rxrpc_incoming_call(struct rxrpc_sock *rx,
/* check the call number isn't duplicate */
_debug("check dup");
- call_id = hdr->callNumber;
+ call_id = sp->hdr.callNumber;
p = &conn->calls.rb_node;
parent = NULL;
while (*p) {
diff --git a/net/rxrpc/conn_object.c b/net/rxrpc/conn_object.c
index 6164373d6ce3..3b42fc4f4fe3 100644
--- a/net/rxrpc/conn_object.c
+++ b/net/rxrpc/conn_object.c
@@ -588,10 +588,10 @@ interrupted:
* get a record of an incoming connection
*/
struct rxrpc_connection *
-rxrpc_incoming_connection(struct rxrpc_transport *trans,
- struct rxrpc_host_header *hdr)
+rxrpc_incoming_connection(struct rxrpc_transport *trans, struct sk_buff *skb)
{
struct rxrpc_connection *conn, *candidate = NULL;
+ struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
struct rb_node *p, **pp;
const char *new = "old";
__be32 epoch;
@@ -599,10 +599,10 @@ rxrpc_incoming_connection(struct rxrpc_transport *trans,
_enter("");
- ASSERT(hdr->flags & RXRPC_CLIENT_INITIATED);
+ ASSERT(sp->hdr.flags & RXRPC_CLIENT_INITIATED);
- epoch = hdr->epoch;
- cid = hdr->cid & RXRPC_CIDMASK;
+ epoch = sp->hdr.epoch;
+ cid = sp->hdr.cid & RXRPC_CIDMASK;
/* search the connection list first */
read_lock_bh(&trans->conn_lock);
@@ -634,19 +634,19 @@ rxrpc_incoming_connection(struct rxrpc_transport *trans,
return ERR_PTR(-ENOMEM);
}
- candidate->trans = trans;
- candidate->proto.local = trans->local;
- candidate->proto.epoch = hdr->epoch;
- candidate->proto.cid = hdr->cid & RXRPC_CIDMASK;
- candidate->proto.in_clientflag = RXRPC_CLIENT_INITIATED;
- candidate->params.local = trans->local;
- candidate->params.peer = trans->peer;
- candidate->params.service_id = hdr->serviceId;
- candidate->security_ix = hdr->securityIndex;
- candidate->out_clientflag = 0;
- candidate->state = RXRPC_CONN_SERVER;
+ candidate->trans = trans;
+ candidate->proto.local = trans->local;
+ candidate->proto.epoch = sp->hdr.epoch;
+ candidate->proto.cid = sp->hdr.cid & RXRPC_CIDMASK;
+ candidate->proto.in_clientflag = RXRPC_CLIENT_INITIATED;
+ candidate->params.local = trans->local;
+ candidate->params.peer = trans->peer;
+ candidate->params.service_id = sp->hdr.serviceId;
+ candidate->security_ix = sp->hdr.securityIndex;
+ candidate->out_clientflag = 0;
+ candidate->state = RXRPC_CONN_SERVER;
if (candidate->params.service_id)
- candidate->state = RXRPC_CONN_SERVER_UNSECURED;
+ candidate->state = RXRPC_CONN_SERVER_UNSECURED;
write_lock_bh(&trans->conn_lock);
@@ -691,7 +691,7 @@ success:
/* we found the connection in the list immediately */
found_extant_connection:
- if (hdr->securityIndex != conn->security_ix) {
+ if (sp->hdr.securityIndex != conn->security_ix) {
read_unlock_bh(&trans->conn_lock);
goto security_mismatch;
}
@@ -701,7 +701,7 @@ found_extant_connection:
/* we found the connection on the second time through the list */
found_extant_second:
- if (hdr->securityIndex != conn->security_ix) {
+ if (sp->hdr.securityIndex != conn->security_ix) {
write_unlock_bh(&trans->conn_lock);
goto security_mismatch;
}
@@ -721,20 +721,21 @@ security_mismatch:
* packet
*/
struct rxrpc_connection *rxrpc_find_connection(struct rxrpc_transport *trans,
- struct rxrpc_host_header *hdr)
+ struct sk_buff *skb)
{
struct rxrpc_connection *conn;
+ struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
struct rb_node *p;
u32 epoch, cid;
- _enter(",{%x,%x}", hdr->cid, hdr->flags);
+ _enter(",{%x,%x}", sp->hdr.cid, sp->hdr.flags);
read_lock_bh(&trans->conn_lock);
- cid = hdr->cid & RXRPC_CIDMASK;
- epoch = hdr->epoch;
+ cid = sp->hdr.cid & RXRPC_CIDMASK;
+ epoch = sp->hdr.epoch;
- if (hdr->flags & RXRPC_CLIENT_INITIATED)
+ if (sp->hdr.flags & RXRPC_CLIENT_INITIATED)
p = trans->server_conns.rb_node;
else
p = trans->client_conns.rb_node;
diff --git a/net/rxrpc/input.c b/net/rxrpc/input.c
index 6af7f40c5030..cf540efa9c17 100644
--- a/net/rxrpc/input.c
+++ b/net/rxrpc/input.c
@@ -628,8 +628,7 @@ int rxrpc_extract_header(struct rxrpc_skb_priv *sp, struct sk_buff *skb)
}
static struct rxrpc_connection *rxrpc_conn_from_local(struct rxrpc_local *local,
- struct sk_buff *skb,
- struct rxrpc_skb_priv *sp)
+ struct sk_buff *skb)
{
struct rxrpc_peer *peer;
struct rxrpc_transport *trans;
@@ -647,7 +646,7 @@ static struct rxrpc_connection *rxrpc_conn_from_local(struct rxrpc_local *local,
if (!trans)
goto cant_find_conn;
- conn = rxrpc_find_connection(trans, &sp->hdr);
+ conn = rxrpc_find_connection(trans, skb);
rxrpc_put_transport(trans);
if (!conn)
goto cant_find_conn;
@@ -739,7 +738,7 @@ void rxrpc_data_ready(struct sock *sk)
* old-fashioned way doesn't really hurt */
struct rxrpc_connection *conn;
- conn = rxrpc_conn_from_local(local, skb, sp);
+ conn = rxrpc_conn_from_local(local, skb);
if (!conn)
goto cant_route_call;
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