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/sched/act_csum.c | 57 ++++++++++++++++++++++++++++++++-------------------------
1 files changed, 32 insertions(+), 25 deletions(-)
diff --git a/kernel/net/sched/act_csum.c b/kernel/net/sched/act_csum.c
index 24ad4ce..4fa4fcb 100644
--- a/kernel/net/sched/act_csum.c
+++ b/kernel/net/sched/act_csum.c
@@ -1,13 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Checksum updating actions
*
* Copyright (c) 2010 Gregoire Baron <baronchon@n7mm.org>
- *
- * 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.
- *
*/
#include <linux/types.h>
@@ -33,6 +28,7 @@
#include <net/sctp/checksum.h>
#include <net/act_api.h>
+#include <net/pkt_cls.h>
#include <linux/tc_act/tc_csum.h>
#include <net/tc_act/tc_csum.h>
@@ -46,12 +42,13 @@
static int tcf_csum_init(struct net *net, struct nlattr *nla,
struct nlattr *est, struct tc_action **a, int ovr,
- int bind, bool rtnl_held,
- struct netlink_ext_ack *extack)
+ int bind, bool rtnl_held, struct tcf_proto *tp,
+ u32 flags, struct netlink_ext_ack *extack)
{
struct tc_action_net *tn = net_generic(net, csum_net_id);
struct tcf_csum_params *params_new;
struct nlattr *tb[TCA_CSUM_MAX + 1];
+ struct tcf_chain *goto_ch = NULL;
struct tc_csum *parm;
struct tcf_csum *p;
int ret = 0, err;
@@ -60,7 +57,8 @@
if (nla == NULL)
return -EINVAL;
- err = nla_parse_nested(tb, TCA_CSUM_MAX, nla, csum_policy, NULL);
+ err = nla_parse_nested_deprecated(tb, TCA_CSUM_MAX, nla, csum_policy,
+ NULL);
if (err < 0)
return err;
@@ -70,8 +68,8 @@
index = parm->index;
err = tcf_idr_check_alloc(tn, &index, a, bind);
if (!err) {
- ret = tcf_idr_create(tn, index, est, a,
- &act_csum_ops, bind, true);
+ ret = tcf_idr_create_from_flags(tn, index, est, a,
+ &act_csum_ops, bind, flags);
if (ret) {
tcf_idr_cleanup(tn, index);
return ret;
@@ -88,28 +86,37 @@
return err;
}
+ err = tcf_action_check_ctrlact(parm->action, tp, &goto_ch, extack);
+ if (err < 0)
+ goto release_idr;
+
p = to_tcf_csum(*a);
params_new = kzalloc(sizeof(*params_new), GFP_KERNEL);
if (unlikely(!params_new)) {
- tcf_idr_release(*a, bind);
- return -ENOMEM;
+ err = -ENOMEM;
+ goto put_chain;
}
params_new->update_flags = parm->update_flags;
spin_lock_bh(&p->tcf_lock);
- p->tcf_action = parm->action;
- rcu_swap_protected(p->params, params_new,
- lockdep_is_held(&p->tcf_lock));
+ goto_ch = tcf_action_set_ctrlact(*a, parm->action, goto_ch);
+ params_new = rcu_replace_pointer(p->params, params_new,
+ lockdep_is_held(&p->tcf_lock));
spin_unlock_bh(&p->tcf_lock);
+ if (goto_ch)
+ tcf_chain_put_by_act(goto_ch);
if (params_new)
kfree_rcu(params_new, rcu);
- if (ret == ACT_P_CREATED)
- tcf_idr_insert(tn, *a);
-
return ret;
+put_chain:
+ if (goto_ch)
+ tcf_chain_put_by_act(goto_ch);
+release_idr:
+ tcf_idr_release(*a, bind);
+ return err;
}
/**
@@ -570,7 +577,7 @@
params = rcu_dereference_bh(p->params);
tcf_lastuse_update(&p->tcf_tm);
- bstats_cpu_update(this_cpu_ptr(p->common.cpu_bstats), skb);
+ tcf_action_update_bstats(&p->common, skb);
action = READ_ONCE(p->tcf_action);
if (unlikely(action == TC_ACT_SHOT))
@@ -588,7 +595,8 @@
if (!tcf_csum_ipv6(skb, update_flags))
goto drop;
break;
- case cpu_to_be16(ETH_P_8021AD): /* fall through */
+ case cpu_to_be16(ETH_P_8021AD):
+ fallthrough;
case cpu_to_be16(ETH_P_8021Q):
if (skb_vlan_tag_present(skb) && !orig_vlan_tag_present) {
protocol = skb->protocol;
@@ -614,7 +622,7 @@
return action;
drop:
- qstats_drop_inc(this_cpu_ptr(p->common.cpu_qstats));
+ tcf_action_inc_drop_qstats(&p->common);
action = TC_ACT_SHOT;
goto out;
}
@@ -674,8 +682,7 @@
return tcf_generic_walker(tn, skb, cb, type, ops, extack);
}
-static int tcf_csum_search(struct net *net, struct tc_action **a, u32 index,
- struct netlink_ext_ack *extack)
+static int tcf_csum_search(struct net *net, struct tc_action **a, u32 index)
{
struct tc_action_net *tn = net_generic(net, csum_net_id);
@@ -689,7 +696,7 @@
static struct tc_action_ops act_csum_ops = {
.kind = "csum",
- .type = TCA_ACT_CSUM,
+ .id = TCA_ID_CSUM,
.owner = THIS_MODULE,
.act = tcf_csum_act,
.dump = tcf_csum_dump,
--
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