From 072de836f53be56a70cecf70b43ae43b7ce17376 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 10:08:36 +0000
Subject: [PATCH] mk-rootfs.sh
---
kernel/drivers/net/ppp/ppp_async.c | 17 +++++++----------
1 files changed, 7 insertions(+), 10 deletions(-)
diff --git a/kernel/drivers/net/ppp/ppp_async.c b/kernel/drivers/net/ppp/ppp_async.c
index 6fd8485..f14a9d1 100644
--- a/kernel/drivers/net/ppp/ppp_async.c
+++ b/kernel/drivers/net/ppp/ppp_async.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* PPP async serial channel driver for Linux.
*
* Copyright 1999 Paul Mackerras.
- *
- * 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.
*
* This driver provides the encapsulation and framing for sending
* and receiving PPP frames over async serial lines. It relies on
@@ -70,7 +66,7 @@
struct tasklet_struct tsk;
refcount_t refcnt;
- struct semaphore dead_sem;
+ struct completion dead;
struct ppp_channel chan; /* interface to generic ppp layer */
unsigned char obuf[OBUFSIZE];
};
@@ -148,7 +144,7 @@
static void ap_put(struct asyncppp *ap)
{
if (refcount_dec_and_test(&ap->refcnt))
- up(&ap->dead_sem);
+ complete(&ap->dead);
}
/*
@@ -186,7 +182,7 @@
tasklet_init(&ap->tsk, ppp_async_process, (unsigned long) ap);
refcount_set(&ap->refcnt, 1);
- sema_init(&ap->dead_sem, 0);
+ init_completion(&ap->dead);
ap->chan.private = ap;
ap->chan.ops = &async_ops;
@@ -235,7 +231,7 @@
* by the time it returns.
*/
if (!refcount_dec_and_test(&ap->refcnt))
- down(&ap->dead_sem);
+ wait_for_completion(&ap->dead);
tasklet_kill(&ap->tsk);
ppp_unregister_channel(&ap->chan);
@@ -263,7 +259,8 @@
*/
static ssize_t
ppp_asynctty_read(struct tty_struct *tty, struct file *file,
- unsigned char __user *buf, size_t count)
+ unsigned char *buf, size_t count,
+ void **cookie, unsigned long offset)
{
return -EAGAIN;
}
--
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