From f9004dbfff8a3fbbd7e2a88c8a4327c7f2f8e5b2 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 31 Jan 2024 01:04:47 +0000
Subject: [PATCH] add driver 5G
---
kernel/include/net/busy_poll.h | 22 +++++++---------------
1 files changed, 7 insertions(+), 15 deletions(-)
diff --git a/kernel/include/net/busy_poll.h b/kernel/include/net/busy_poll.h
index c76a5e9..36e5e75 100644
--- a/kernel/include/net/busy_poll.h
+++ b/kernel/include/net/busy_poll.h
@@ -1,19 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* net busy poll support
* Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
*
* Author: Eliezer Tamir
*
@@ -43,7 +31,7 @@
static inline bool net_busy_loop_on(void)
{
- return sysctl_net_busy_poll;
+ return READ_ONCE(sysctl_net_busy_poll);
}
static inline bool sk_can_busy_loop(const struct sock *sk)
@@ -126,7 +114,11 @@
struct napi_struct *napi)
{
#ifdef CONFIG_NET_RX_BUSY_POLL
- skb->napi_id = napi->napi_id;
+ /* If the skb was already marked with a valid NAPI ID, avoid overwriting
+ * it.
+ */
+ if (skb->napi_id < MIN_NAPI_ID)
+ skb->napi_id = napi->napi_id;
#endif
}
--
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