修改4g拨号为QMI,需要在系统里后台执行quectel-CM

hc

2024-10-22 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5

 kernel/net/batman-adv/log.c
..
..
@@ -1,19 +1,7 @@
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1
 // SPDX-License-Identifier: GPL-2.0
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-/* Copyright (C) 2010-2018  B.A.T.M.A.N. contributors:
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+/* Copyright (C) 2010-2020  B.A.T.M.A.N. contributors:
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  *
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  * Marek Lindner
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- *
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- * This program is free software; you can redistribute it and/or
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- * modify it under the terms of version 2 of the GNU General Public
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- * License as published by the Free Software Foundation.
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- *
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- * This program is distributed in the hope that it will be useful, but
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- * WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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- * General Public License for more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with this program; if not, see <http://www.gnu.org/licenses/>.
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5
  */
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6
 
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 #include "log.h"
..
..
@@ -39,6 +27,11 @@
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 #include <linux/uaccess.h>
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 #include <linux/wait.h>
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 #include <stdarg.h>
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+
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+#include "debugfs.h"
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+#include "trace.h"
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+
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+#ifdef CONFIG_BATMAN_ADV_DEBUGFS
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35
 
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 #define BATADV_LOG_BUFF_MASK (batadv_log_buff_len - 1)
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37
 
..
..
@@ -89,33 +82,15 @@
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 	return 0;
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 }
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84
 
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-/**
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- * batadv_debug_log() - Add debug log entry
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- * @bat_priv: the bat priv with all the soft interface information
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- * @fmt: format string
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- *
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- * Return: 0 on success or negative error number in case of failure
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- */
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-int batadv_debug_log(struct batadv_priv *bat_priv, const char *fmt, ...)
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-{
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-	va_list args;
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-	char tmp_log_buf[256];
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-
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-	va_start(args, fmt);
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-	vscnprintf(tmp_log_buf, sizeof(tmp_log_buf), fmt, args);
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-	batadv_fdebug_log(bat_priv->debug_log, "[%10u] %s",
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-			  jiffies_to_msecs(jiffies), tmp_log_buf);
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-	va_end(args);
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-
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-	return 0;
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-}
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-
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 static int batadv_log_open(struct inode *inode, struct file *file)
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 {
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 	if (!try_module_get(THIS_MODULE))
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 		return -EBUSY;
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89
 
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-	nonseekable_open(inode, file);
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+	batadv_debugfs_deprecated(file,
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+				  "Use tracepoint batadv:batadv_dbg instead\n");
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+
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+	stream_open(inode, file);
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 	file->private_data = inode->i_private;
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 	return 0;
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 }
..
..
@@ -149,7 +124,7 @@
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 	if (count == 0)
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 		return 0;
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-	if (!access_ok(VERIFY_WRITE, buf, count))
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+	if (!access_ok(buf, count))
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 		return -EFAULT;
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129
 
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 	error = wait_event_interruptible(debug_log->queue_wait,
..
..
@@ -216,27 +191,16 @@
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191
  */
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 int batadv_debug_log_setup(struct batadv_priv *bat_priv)
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 {
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-	struct dentry *d;
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-
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-	if (!bat_priv->debug_dir)
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-		goto err;
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-
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 	bat_priv->debug_log = kzalloc(sizeof(*bat_priv->debug_log), GFP_ATOMIC);
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 	if (!bat_priv->debug_log)
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-		goto err;
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+		return -ENOMEM;
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197
 
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 	spin_lock_init(&bat_priv->debug_log->lock);
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 	init_waitqueue_head(&bat_priv->debug_log->queue_wait);
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200
 
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-	d = debugfs_create_file("log", 0400, bat_priv->debug_dir, bat_priv,
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-				&batadv_log_fops);
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-	if (!d)
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-		goto err;
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-
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+	debugfs_create_file("log", 0400, bat_priv->debug_dir, bat_priv,
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+			    &batadv_log_fops);
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 	return 0;
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-
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-err:
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-	return -ENOMEM;
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 }
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 /**
..
..
@@ -248,3 +212,34 @@
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 	kfree(bat_priv->debug_log);
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 	bat_priv->debug_log = NULL;
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 }
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+
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+#endif /* CONFIG_BATMAN_ADV_DEBUGFS */
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+
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+/**
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+ * batadv_debug_log() - Add debug log entry
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+ * @bat_priv: the bat priv with all the soft interface information
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+ * @fmt: format string
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+ *
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+ * Return: 0 on success or negative error number in case of failure
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+ */
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+int batadv_debug_log(struct batadv_priv *bat_priv, const char *fmt, ...)
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+{
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+	struct va_format vaf;
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+	va_list args;
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+
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+	va_start(args, fmt);
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+
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+	vaf.fmt = fmt;
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+	vaf.va = &args;
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+
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+#ifdef CONFIG_BATMAN_ADV_DEBUGFS
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+	batadv_fdebug_log(bat_priv->debug_log, "[%10u] %pV",
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+			  jiffies_to_msecs(jiffies), &vaf);
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+#endif
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+
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+	trace_batadv_dbg(bat_priv, &vaf);
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+
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+	va_end(args);
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+
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+	return 0;
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+}