From 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 22 Oct 2024 10:36:11 +0000
Subject: [PATCH] 修改4g拨号为QMI,需要在系统里后台执行quectel-CM
---
kernel/net/rxrpc/conn_object.c | 76 ++++++++++++++++++-------------------
1 files changed, 37 insertions(+), 39 deletions(-)
diff --git a/kernel/net/rxrpc/conn_object.c b/kernel/net/rxrpc/conn_object.c
index 2adb7c5..d829b97 100644
--- a/kernel/net/rxrpc/conn_object.c
+++ b/kernel/net/rxrpc/conn_object.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/* RxRPC virtual connection handler, common bits.
*
* Copyright (C) 2007, 2016 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
@@ -45,8 +41,6 @@
conn = kzalloc(sizeof(struct rxrpc_connection), gfp);
if (conn) {
INIT_LIST_HEAD(&conn->cache_link);
- spin_lock_init(&conn->channel_lock);
- INIT_LIST_HEAD(&conn->waiting_calls);
timer_setup(&conn->timer, &rxrpc_connection_timer, 0);
INIT_WORK(&conn->processor, &rxrpc_process_connection);
INIT_LIST_HEAD(&conn->proc_link);
@@ -86,11 +80,12 @@
_enter(",%x", sp->hdr.cid & RXRPC_CIDMASK);
- if (rxrpc_extract_addr_from_skb(local, &srx, skb) < 0)
+ if (rxrpc_extract_addr_from_skb(&srx, skb) < 0)
goto not_found;
- /* We may have to handle mixing IPv4 and IPv6 */
- if (srx.transport.family != local->srx.transport.family) {
+ if (srx.transport.family != local->srx.transport.family &&
+ (srx.transport.family == AF_INET &&
+ local->srx.transport.family != AF_INET6)) {
pr_warn_ratelimited("AF_RXRPC: Protocol mismatch %u not %u\n",
srx.transport.family,
local->srx.transport.family);
@@ -110,7 +105,7 @@
goto not_found;
*_peer = peer;
conn = rxrpc_find_service_conn_rcu(peer, skb);
- if (!conn || atomic_read(&conn->usage) == 0)
+ if (!conn || refcount_read(&conn->ref) == 0)
goto not_found;
_leave(" = %p", conn);
return conn;
@@ -120,7 +115,7 @@
*/
conn = idr_find(&rxrpc_client_conn_ids,
sp->hdr.cid >> RXRPC_CIDSHIFT);
- if (!conn || atomic_read(&conn->usage) == 0) {
+ if (!conn || refcount_read(&conn->ref) == 0) {
_debug("no conn");
goto not_found;
}
@@ -189,7 +184,7 @@
chan->last_type = RXRPC_PACKET_TYPE_ABORT;
break;
default:
- chan->last_abort = RX_USER_ABORT;
+ chan->last_abort = RX_CALL_DEAD;
chan->last_type = RXRPC_PACKET_TYPE_ABORT;
break;
}
@@ -222,11 +217,11 @@
}
if (rxrpc_is_client_call(call))
- return rxrpc_disconnect_client_call(call);
+ return rxrpc_disconnect_client_call(conn->bundle, call);
- spin_lock(&conn->channel_lock);
+ spin_lock(&conn->bundle->channel_lock);
__rxrpc_disconnect_call(conn, call);
- spin_unlock(&conn->channel_lock);
+ spin_unlock(&conn->bundle->channel_lock);
set_bit(RXRPC_CALL_DISCONNECTED, &call->flags);
conn->idle_timestamp = jiffies;
@@ -269,11 +264,12 @@
bool rxrpc_queue_conn(struct rxrpc_connection *conn)
{
const void *here = __builtin_return_address(0);
- int n = atomic_fetch_add_unless(&conn->usage, 1, 0);
- if (n == 0)
+ int r;
+
+ if (!__refcount_inc_not_zero(&conn->ref, &r))
return false;
if (rxrpc_queue_work(&conn->processor))
- trace_rxrpc_conn(conn->debug_id, rxrpc_conn_queued, n + 1, here);
+ trace_rxrpc_conn(conn->debug_id, rxrpc_conn_queued, r + 1, here);
else
rxrpc_put_connection(conn);
return true;
@@ -286,7 +282,7 @@
{
const void *here = __builtin_return_address(0);
if (conn) {
- int n = atomic_read(&conn->usage);
+ int n = refcount_read(&conn->ref);
trace_rxrpc_conn(conn->debug_id, rxrpc_conn_seen, n, here);
}
@@ -295,12 +291,14 @@
/*
* Get a ref on a connection.
*/
-void rxrpc_get_connection(struct rxrpc_connection *conn)
+struct rxrpc_connection *rxrpc_get_connection(struct rxrpc_connection *conn)
{
const void *here = __builtin_return_address(0);
- int n = atomic_inc_return(&conn->usage);
+ int r;
- trace_rxrpc_conn(conn->debug_id, rxrpc_conn_got, n, here);
+ __refcount_inc(&conn->ref, &r);
+ trace_rxrpc_conn(conn->debug_id, rxrpc_conn_got, r, here);
+ return conn;
}
/*
@@ -310,11 +308,11 @@
rxrpc_get_connection_maybe(struct rxrpc_connection *conn)
{
const void *here = __builtin_return_address(0);
+ int r;
if (conn) {
- int n = atomic_fetch_add_unless(&conn->usage, 1, 0);
- if (n > 0)
- trace_rxrpc_conn(conn->debug_id, rxrpc_conn_got, n + 1, here);
+ if (__refcount_inc_not_zero(&conn->ref, &r))
+ trace_rxrpc_conn(conn->debug_id, rxrpc_conn_got, r + 1, here);
else
conn = NULL;
}
@@ -338,12 +336,11 @@
{
const void *here = __builtin_return_address(0);
unsigned int debug_id = conn->debug_id;
- int n;
+ int r;
- n = atomic_dec_return(&conn->usage);
- trace_rxrpc_conn(debug_id, rxrpc_conn_put_service, n, here);
- ASSERTCMP(n, >=, 0);
- if (n == 1)
+ __refcount_dec(&conn->ref, &r);
+ trace_rxrpc_conn(debug_id, rxrpc_conn_put_service, r - 1, here);
+ if (r - 1 == 1)
rxrpc_set_service_reap_timer(conn->params.local->rxnet,
jiffies + rxrpc_connection_expiry);
}
@@ -356,9 +353,9 @@
struct rxrpc_connection *conn =
container_of(rcu, struct rxrpc_connection, rcu);
- _enter("{%d,u=%d}", conn->debug_id, atomic_read(&conn->usage));
+ _enter("{%d,u=%d}", conn->debug_id, refcount_read(&conn->ref));
- ASSERTCMP(atomic_read(&conn->usage), ==, 0);
+ ASSERTCMP(refcount_read(&conn->ref), ==, 0);
_net("DESTROY CONN %d", conn->debug_id);
@@ -368,6 +365,7 @@
conn->security->clear(conn);
key_put(conn->params.key);
key_put(conn->server_key);
+ rxrpc_put_bundle(conn->bundle);
rxrpc_put_peer(conn->params.peer);
if (atomic_dec_and_test(&conn->params.local->rxnet->nr_conns))
@@ -397,8 +395,8 @@
write_lock(&rxnet->conn_lock);
list_for_each_entry_safe(conn, _p, &rxnet->service_conns, link) {
- ASSERTCMP(atomic_read(&conn->usage), >, 0);
- if (likely(atomic_read(&conn->usage) > 1))
+ ASSERTCMP(refcount_read(&conn->ref), >, 0);
+ if (likely(refcount_read(&conn->ref) > 1))
continue;
if (conn->state == RXRPC_CONN_SERVICE_PREALLOC)
continue;
@@ -410,7 +408,7 @@
expire_at = idle_timestamp + rxrpc_closed_conn_expiry * HZ;
_debug("reap CONN %d { u=%d,t=%ld }",
- conn->debug_id, atomic_read(&conn->usage),
+ conn->debug_id, refcount_read(&conn->ref),
(long)expire_at - (long)now);
if (time_before(now, expire_at)) {
@@ -423,7 +421,7 @@
/* The usage count sits at 1 whilst the object is unused on the
* list; we reduce that to 0 to make the object unavailable.
*/
- if (atomic_cmpxchg(&conn->usage, 1, 0) != 1)
+ if (!refcount_dec_if_one(&conn->ref))
continue;
trace_rxrpc_conn(conn->debug_id, rxrpc_conn_reap_service, 0, NULL);
@@ -447,7 +445,7 @@
link);
list_del_init(&conn->link);
- ASSERTCMP(atomic_read(&conn->usage), ==, 0);
+ ASSERTCMP(refcount_read(&conn->ref), ==, 0);
rxrpc_kill_connection(conn);
}
@@ -475,7 +473,7 @@
write_lock(&rxnet->conn_lock);
list_for_each_entry_safe(conn, _p, &rxnet->service_conns, link) {
pr_err("AF_RXRPC: Leaked conn %p {%d}\n",
- conn, atomic_read(&conn->usage));
+ conn, refcount_read(&conn->ref));
leak = true;
}
write_unlock(&rxnet->conn_lock);
--
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