From cde9070d9970eef1f7ec2360586c802a16230ad8 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:43:50 +0000
Subject: [PATCH] rtl88x2CE_WiFi_linux driver
---
kernel/kernel/bpf/bpf_lru_list.c | 26 ++++++++++++++------------
1 files changed, 14 insertions(+), 12 deletions(-)
diff --git a/kernel/kernel/bpf/bpf_lru_list.c b/kernel/kernel/bpf/bpf_lru_list.c
index 9b5eeff..3dabdd1 100644
--- a/kernel/kernel/bpf/bpf_lru_list.c
+++ b/kernel/kernel/bpf/bpf_lru_list.c
@@ -1,8 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* Copyright (c) 2016 Facebook
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
*/
#include <linux/cpumask.h>
#include <linux/spinlock.h>
@@ -44,7 +41,12 @@
/* bpf_lru_node helpers */
static bool bpf_lru_node_is_ref(const struct bpf_lru_node *node)
{
- return node->ref;
+ return READ_ONCE(node->ref);
+}
+
+static void bpf_lru_node_clear_ref(struct bpf_lru_node *node)
+{
+ WRITE_ONCE(node->ref, 0);
}
static void bpf_lru_list_count_inc(struct bpf_lru_list *l,
@@ -92,7 +94,7 @@
bpf_lru_list_count_inc(l, tgt_type);
node->type = tgt_type;
- node->ref = 0;
+ bpf_lru_node_clear_ref(node);
list_move(&node->list, &l->lists[tgt_type]);
}
@@ -113,7 +115,7 @@
bpf_lru_list_count_inc(l, tgt_type);
node->type = tgt_type;
}
- node->ref = 0;
+ bpf_lru_node_clear_ref(node);
/* If the moving node is the next_inactive_rotation candidate,
* move the next_inactive_rotation pointer also.
@@ -356,7 +358,7 @@
*(u32 *)((void *)node + lru->hash_offset) = hash;
node->cpu = cpu;
node->type = BPF_LRU_LOCAL_LIST_T_PENDING;
- node->ref = 0;
+ bpf_lru_node_clear_ref(node);
list_add(&node->list, local_pending_list(loc_l));
}
@@ -422,7 +424,7 @@
if (!list_empty(free_list)) {
node = list_first_entry(free_list, struct bpf_lru_node, list);
*(u32 *)((void *)node + lru->hash_offset) = hash;
- node->ref = 0;
+ bpf_lru_node_clear_ref(node);
__bpf_lru_node_move(l, node, BPF_LRU_LIST_T_INACTIVE);
}
@@ -525,7 +527,7 @@
}
node->type = BPF_LRU_LOCAL_LIST_T_FREE;
- node->ref = 0;
+ bpf_lru_node_clear_ref(node);
list_move(&node->list, local_free_list(loc_l));
raw_spin_unlock_irqrestore(&loc_l->lock, flags);
@@ -571,7 +573,7 @@
node = (struct bpf_lru_node *)(buf + node_offset);
node->type = BPF_LRU_LIST_T_FREE;
- node->ref = 0;
+ bpf_lru_node_clear_ref(node);
list_add(&node->list, &l->lists[BPF_LRU_LIST_T_FREE]);
buf += elem_size;
}
@@ -597,7 +599,7 @@
node = (struct bpf_lru_node *)(buf + node_offset);
node->cpu = cpu;
node->type = BPF_LRU_LIST_T_FREE;
- node->ref = 0;
+ bpf_lru_node_clear_ref(node);
list_add(&node->list, &l->lists[BPF_LRU_LIST_T_FREE]);
i++;
buf += elem_size;
--
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