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Date: Thu, 30 Jun 2016 15:11:18 +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 05/19] rxrpc: Turn connection #defines into enums
and put outside struct def
Turn the connection event and state #define lists into enums and move
outside of the struct definition.
Whilst we're at it, change _SERVER to _SERVICE in those identifiers and add
EV_ into the event name to distinguish them from flags and states.
Also add a symbol indicating the number of states and use that in the state
text array.
Signed-off-by: David Howells <dhowells@...hat.com>
---
net/rxrpc/ar-internal.h | 42 ++++++++++++++++++++++++++++++------------
net/rxrpc/call_accept.c | 6 +++---
net/rxrpc/conn_event.c | 6 +++---
net/rxrpc/conn_object.c | 4 ++--
net/rxrpc/proc.c | 18 +++++++++---------
5 files changed, 47 insertions(+), 29 deletions(-)
diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h
index f2b1c6dd5e9a..6f62b0eef0e0 100644
--- a/net/rxrpc/ar-internal.h
+++ b/net/rxrpc/ar-internal.h
@@ -254,6 +254,35 @@ struct rxrpc_conn_parameters {
};
/*
+ * Bits in the connection flags.
+ */
+enum rxrpc_conn_flag {
+ RXRPC_CONN_HAS_IDR, /* Has a client conn ID assigned */
+};
+
+/*
+ * Events that can be raised upon a connection.
+ */
+enum rxrpc_conn_event {
+ RXRPC_CONN_EV_CHALLENGE, /* Send challenge packet */
+};
+
+/*
+ * The connection protocol state.
+ */
+enum rxrpc_conn_proto_state {
+ RXRPC_CONN_UNUSED, /* Connection not yet attempted */
+ RXRPC_CONN_CLIENT, /* Client connection */
+ RXRPC_CONN_SERVICE_UNSECURED, /* Service unsecured connection */
+ RXRPC_CONN_SERVICE_CHALLENGING, /* Service challenging for security */
+ RXRPC_CONN_SERVICE, /* Service secured connection */
+ RXRPC_CONN_REMOTELY_ABORTED, /* Conn aborted by peer */
+ RXRPC_CONN_LOCALLY_ABORTED, /* Conn aborted locally */
+ RXRPC_CONN_NETWORK_ERROR, /* Conn terminated by network error */
+ RXRPC_CONN__NR_STATES
+};
+
+/*
* RxRPC connection definition
* - matched by { local, peer, epoch, conn_id, direction }
* - each connection can only handle four simultaneous calls
@@ -280,23 +309,12 @@ struct rxrpc_connection {
struct crypto_skcipher *cipher; /* encryption handle */
struct rxrpc_crypt csum_iv; /* packet checksum base */
unsigned long flags;
-#define RXRPC_CONN_HAS_IDR 0 /* - Has a client conn ID assigned */
unsigned long events;
-#define RXRPC_CONN_CHALLENGE 0 /* send challenge packet */
unsigned long put_time; /* Time at which last put */
rwlock_t lock; /* access lock */
spinlock_t state_lock; /* state-change lock */
atomic_t usage;
- enum { /* current state of connection */
- RXRPC_CONN_UNUSED, /* - connection not yet attempted */
- RXRPC_CONN_CLIENT, /* - client connection */
- RXRPC_CONN_SERVER_UNSECURED, /* - server unsecured connection */
- RXRPC_CONN_SERVER_CHALLENGING, /* - server challenging for security */
- RXRPC_CONN_SERVER, /* - server secured connection */
- RXRPC_CONN_REMOTELY_ABORTED, /* - conn aborted by peer */
- RXRPC_CONN_LOCALLY_ABORTED, /* - conn aborted locally */
- RXRPC_CONN_NETWORK_ERROR, /* - conn terminated by network error */
- } state;
+ enum rxrpc_conn_proto_state state : 8; /* current state of connection */
u32 local_abort; /* local abort code */
u32 remote_abort; /* remote abort code */
int error; /* local error incurred */
diff --git a/net/rxrpc/call_accept.c b/net/rxrpc/call_accept.c
index 202e053a3c6d..1c0860df150e 100644
--- a/net/rxrpc/call_accept.c
+++ b/net/rxrpc/call_accept.c
@@ -128,12 +128,12 @@ static int rxrpc_accept_incoming_call(struct rxrpc_local *local,
spin_lock(&call->conn->state_lock);
if (sp->hdr.securityIndex > 0 &&
- call->conn->state == RXRPC_CONN_SERVER_UNSECURED) {
+ call->conn->state == RXRPC_CONN_SERVICE_UNSECURED) {
_debug("await conn sec");
list_add_tail(&call->accept_link, &rx->secureq);
- call->conn->state = RXRPC_CONN_SERVER_CHALLENGING;
+ call->conn->state = RXRPC_CONN_SERVICE_CHALLENGING;
rxrpc_get_connection(call->conn);
- set_bit(RXRPC_CONN_CHALLENGE, &call->conn->events);
+ set_bit(RXRPC_CONN_EV_CHALLENGE, &call->conn->events);
rxrpc_queue_conn(call->conn);
} else {
_debug("conn ready");
diff --git a/net/rxrpc/conn_event.c b/net/rxrpc/conn_event.c
index d7e183c6b5df..b9c39b83eddb 100644
--- a/net/rxrpc/conn_event.c
+++ b/net/rxrpc/conn_event.c
@@ -195,8 +195,8 @@ static int rxrpc_process_event(struct rxrpc_connection *conn,
read_lock_bh(&conn->lock);
spin_lock(&conn->state_lock);
- if (conn->state == RXRPC_CONN_SERVER_CHALLENGING) {
- conn->state = RXRPC_CONN_SERVER;
+ if (conn->state == RXRPC_CONN_SERVICE_CHALLENGING) {
+ conn->state = RXRPC_CONN_SERVICE;
for (loop = 0; loop < RXRPC_MAXCALLS; loop++)
rxrpc_call_is_secure(conn->channels[loop]);
}
@@ -268,7 +268,7 @@ void rxrpc_process_connection(struct work_struct *work)
rxrpc_get_connection(conn);
- if (test_and_clear_bit(RXRPC_CONN_CHALLENGE, &conn->events)) {
+ if (test_and_clear_bit(RXRPC_CONN_EV_CHALLENGE, &conn->events)) {
rxrpc_secure_connection(conn);
rxrpc_put_connection(conn);
}
diff --git a/net/rxrpc/conn_object.c b/net/rxrpc/conn_object.c
index ff0c502ed68d..6d50d0d165b7 100644
--- a/net/rxrpc/conn_object.c
+++ b/net/rxrpc/conn_object.c
@@ -403,9 +403,9 @@ struct rxrpc_connection *rxrpc_incoming_connection(struct rxrpc_local *local,
candidate->params.service_id = sp->hdr.serviceId;
candidate->security_ix = sp->hdr.securityIndex;
candidate->out_clientflag = 0;
- candidate->state = RXRPC_CONN_SERVER;
+ candidate->state = RXRPC_CONN_SERVICE;
if (candidate->params.service_id)
- candidate->state = RXRPC_CONN_SERVER_UNSECURED;
+ candidate->state = RXRPC_CONN_SERVICE_UNSECURED;
write_lock_bh(&peer->conn_lock);
diff --git a/net/rxrpc/proc.c b/net/rxrpc/proc.c
index afb5e1bc1b6e..46d470335263 100644
--- a/net/rxrpc/proc.c
+++ b/net/rxrpc/proc.c
@@ -14,15 +14,15 @@
#include <net/af_rxrpc.h>
#include "ar-internal.h"
-static const char *const rxrpc_conn_states[] = {
- [RXRPC_CONN_UNUSED] = "Unused ",
- [RXRPC_CONN_CLIENT] = "Client ",
- [RXRPC_CONN_SERVER_UNSECURED] = "SvUnsec ",
- [RXRPC_CONN_SERVER_CHALLENGING] = "SvChall ",
- [RXRPC_CONN_SERVER] = "SvSecure",
- [RXRPC_CONN_REMOTELY_ABORTED] = "RmtAbort",
- [RXRPC_CONN_LOCALLY_ABORTED] = "LocAbort",
- [RXRPC_CONN_NETWORK_ERROR] = "NetError",
+static const char *const rxrpc_conn_states[RXRPC_CONN__NR_STATES] = {
+ [RXRPC_CONN_UNUSED] = "Unused ",
+ [RXRPC_CONN_CLIENT] = "Client ",
+ [RXRPC_CONN_SERVICE_UNSECURED] = "SvUnsec ",
+ [RXRPC_CONN_SERVICE_CHALLENGING] = "SvChall ",
+ [RXRPC_CONN_SERVICE] = "SvSecure",
+ [RXRPC_CONN_REMOTELY_ABORTED] = "RmtAbort",
+ [RXRPC_CONN_LOCALLY_ABORTED] = "LocAbort",
+ [RXRPC_CONN_NETWORK_ERROR] = "NetError",
};
/*
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