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path: root/drivers/staging/batman-adv/bat_debugfs.c
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Diffstat (limited to 'drivers/staging/batman-adv/bat_debugfs.c')
-rw-r--r--drivers/staging/batman-adv/bat_debugfs.c343
1 files changed, 0 insertions, 343 deletions
diff --git a/drivers/staging/batman-adv/bat_debugfs.c b/drivers/staging/batman-adv/bat_debugfs.c
deleted file mode 100644
index 57f84a9f8234..000000000000
--- a/drivers/staging/batman-adv/bat_debugfs.c
+++ /dev/null
@@ -1,343 +0,0 @@
-/*
- * Copyright (C) 2010 B.A.T.M.A.N. contributors:
- *
- * Marek Lindner
- *
- * 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.
- *
- * This program is distributed in the hope that 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 Street, Fifth Floor, Boston, MA
- * 02110-1301, USA
- *
- */
-
-#include "main.h"
-
-#include <linux/debugfs.h>
-
-#include "bat_debugfs.h"
-#include "translation-table.h"
-#include "originator.h"
-#include "hard-interface.h"
-#include "vis.h"
-#include "icmp_socket.h"
-
-static struct dentry *bat_debugfs;
-
-#ifdef CONFIG_BATMAN_ADV_DEBUG
-#define LOG_BUFF_MASK (log_buff_len-1)
-#define LOG_BUFF(idx) (debug_log->log_buff[(idx) & LOG_BUFF_MASK])
-
-static int log_buff_len = LOG_BUF_LEN;
-
-static void emit_log_char(struct debug_log *debug_log, char c)
-{
- LOG_BUFF(debug_log->log_end) = c;
- debug_log->log_end++;
-
- if (debug_log->log_end - debug_log->log_start > log_buff_len)
- debug_log->log_start = debug_log->log_end - log_buff_len;
-}
-
-static int fdebug_log(struct debug_log *debug_log, char *fmt, ...)
-{
- int printed_len;
- va_list args;
- static char debug_log_buf[256];
- char *p;
- unsigned long flags;
-
- if (!debug_log)
- return 0;
-
- spin_lock_irqsave(&debug_log->lock, flags);
- va_start(args, fmt);
- printed_len = vscnprintf(debug_log_buf, sizeof(debug_log_buf),
- fmt, args);
- va_end(args);
-
- for (p = debug_log_buf; *p != 0; p++)
- emit_log_char(debug_log, *p);
-
- spin_unlock_irqrestore(&debug_log->lock, flags);
-
- wake_up(&debug_log->queue_wait);
-
- return 0;
-}
-
-int debug_log(struct bat_priv *bat_priv, char *fmt, ...)
-{
- va_list args;
- char tmp_log_buf[256];
-
- va_start(args, fmt);
- vscnprintf(tmp_log_buf, sizeof(tmp_log_buf), fmt, args);
- fdebug_log(bat_priv->debug_log, "[%10u] %s",
- (jiffies / HZ), tmp_log_buf);
- va_end(args);
-
- return 0;
-}
-
-static int log_open(struct inode *inode, struct file *file)
-{
- nonseekable_open(inode, file);
- file->private_data = inode->i_private;
- inc_module_count();
- return 0;
-}
-
-static int log_release(struct inode *inode, struct file *file)
-{
- dec_module_count();
- return 0;
-}
-
-static ssize_t log_read(struct file *file, char __user *buf,
- size_t count, loff_t *ppos)
-{
- struct bat_priv *bat_priv = file->private_data;
- struct debug_log *debug_log = bat_priv->debug_log;
- int error, i = 0;
- char c;
- unsigned long flags;
-
- if ((file->f_flags & O_NONBLOCK) &&
- !(debug_log->log_end - debug_log->log_start))
- return -EAGAIN;
-
- if ((!buf) || (count < 0))
- return -EINVAL;
-
- if (count == 0)
- return 0;
-
- if (!access_ok(VERIFY_WRITE, buf, count))
- return -EFAULT;
-
- error = wait_event_interruptible(debug_log->queue_wait,
- (debug_log->log_start - debug_log->log_end));
-
- if (error)
- return error;
-
- spin_lock_irqsave(&debug_log->lock, flags);
-
- while ((!error) && (i < count) &&
- (debug_log->log_start != debug_log->log_end)) {
- c = LOG_BUFF(debug_log->log_start);
-
- debug_log->log_start++;
-
- spin_unlock_irqrestore(&debug_log->lock, flags);
-
- error = __put_user(c, buf);
-
- spin_lock_irqsave(&debug_log->lock, flags);
-
- buf++;
- i++;
-
- }
-
- spin_unlock_irqrestore(&debug_log->lock, flags);
-
- if (!error)
- return i;
-
- return error;
-}
-
-static unsigned int log_poll(struct file *file, poll_table *wait)
-{
- struct bat_priv *bat_priv = file->private_data;
- struct debug_log *debug_log = bat_priv->debug_log;
-
- poll_wait(file, &debug_log->queue_wait, wait);
-
- if (debug_log->log_end - debug_log->log_start)
- return POLLIN | POLLRDNORM;
-
- return 0;
-}
-
-static const struct file_operations log_fops = {
- .open = log_open,
- .release = log_release,
- .read = log_read,
- .poll = log_poll,
- .llseek = no_llseek,
-};
-
-static int debug_log_setup(struct bat_priv *bat_priv)
-{
- struct dentry *d;
-
- if (!bat_priv->debug_dir)
- goto err;
-
- bat_priv->debug_log = kzalloc(sizeof(struct debug_log), GFP_ATOMIC);
- if (!bat_priv->debug_log)
- goto err;
-
- spin_lock_init(&bat_priv->debug_log->lock);
- init_waitqueue_head(&bat_priv->debug_log->queue_wait);
-
- d = debugfs_create_file("log", S_IFREG | S_IRUSR,
- bat_priv->debug_dir, bat_priv, &log_fops);
- if (d)
- goto err;
-
- return 0;
-
-err:
- return 1;
-}
-
-static void debug_log_cleanup(struct bat_priv *bat_priv)
-{
- kfree(bat_priv->debug_log);
- bat_priv->debug_log = NULL;
-}
-#else /* CONFIG_BATMAN_ADV_DEBUG */
-static int debug_log_setup(struct bat_priv *bat_priv)
-{
- bat_priv->debug_log = NULL;
- return 0;
-}
-
-static void debug_log_cleanup(struct bat_priv *bat_priv)
-{
- return;
-}
-#endif
-
-static int originators_open(struct inode *inode, struct file *file)
-{
- struct net_device *net_dev = (struct net_device *)inode->i_private;
- return single_open(file, orig_seq_print_text, net_dev);
-}
-
-static int transtable_global_open(struct inode *inode, struct file *file)
-{
- struct net_device *net_dev = (struct net_device *)inode->i_private;
- return single_open(file, hna_global_seq_print_text, net_dev);
-}
-
-static int transtable_local_open(struct inode *inode, struct file *file)
-{
- struct net_device *net_dev = (struct net_device *)inode->i_private;
- return single_open(file, hna_local_seq_print_text, net_dev);
-}
-
-static int vis_data_open(struct inode *inode, struct file *file)
-{
- struct net_device *net_dev = (struct net_device *)inode->i_private;
- return single_open(file, vis_seq_print_text, net_dev);
-}
-
-struct bat_debuginfo {
- struct attribute attr;
- const struct file_operations fops;
-};
-
-#define BAT_DEBUGINFO(_name, _mode, _open) \
-struct bat_debuginfo bat_debuginfo_##_name = { \
- .attr = { .name = __stringify(_name), \
- .mode = _mode, }, \
- .fops = { .owner = THIS_MODULE, \
- .open = _open, \
- .read = seq_read, \
- .llseek = seq_lseek, \
- .release = single_release, \
- } \
-};
-
-static BAT_DEBUGINFO(originators, S_IRUGO, originators_open);
-static BAT_DEBUGINFO(transtable_global, S_IRUGO, transtable_global_open);
-static BAT_DEBUGINFO(transtable_local, S_IRUGO, transtable_local_open);
-static BAT_DEBUGINFO(vis_data, S_IRUGO, vis_data_open);
-
-static struct bat_debuginfo *mesh_debuginfos[] = {
- &bat_debuginfo_originators,
- &bat_debuginfo_transtable_global,
- &bat_debuginfo_transtable_local,
- &bat_debuginfo_vis_data,
- NULL,
-};
-
-void debugfs_init(void)
-{
- bat_debugfs = debugfs_create_dir(DEBUGFS_BAT_SUBDIR, NULL);
- if (bat_debugfs == ERR_PTR(-ENODEV))
- bat_debugfs = NULL;
-}
-
-void debugfs_destroy(void)
-{
- if (bat_debugfs) {
- debugfs_remove_recursive(bat_debugfs);
- bat_debugfs = NULL;
- }
-}
-
-int debugfs_add_meshif(struct net_device *dev)
-{
- struct bat_priv *bat_priv = netdev_priv(dev);
- struct bat_debuginfo **bat_debug;
- struct dentry *file;
-
- if (!bat_debugfs)
- goto out;
-
- bat_priv->debug_dir = debugfs_create_dir(dev->name, bat_debugfs);
- if (!bat_priv->debug_dir)
- goto out;
-
- bat_socket_setup(bat_priv);
- debug_log_setup(bat_priv);
-
- for (bat_debug = mesh_debuginfos; *bat_debug; ++bat_debug) {
- file = debugfs_create_file(((*bat_debug)->attr).name,
- S_IFREG | ((*bat_debug)->attr).mode,
- bat_priv->debug_dir,
- dev, &(*bat_debug)->fops);
- if (!file) {
- bat_err(dev, "Can't add debugfs file: %s/%s\n",
- dev->name, ((*bat_debug)->attr).name);
- goto rem_attr;
- }
- }
-
- return 0;
-rem_attr:
- debugfs_remove_recursive(bat_priv->debug_dir);
- bat_priv->debug_dir = NULL;
-out:
-#ifdef CONFIG_DEBUG_FS
- return -ENOMEM;
-#else
- return 0;
-#endif /* CONFIG_DEBUG_FS */
-}
-
-void debugfs_del_meshif(struct net_device *dev)
-{
- struct bat_priv *bat_priv = netdev_priv(dev);
-
- debug_log_cleanup(bat_priv);
-
- if (bat_debugfs) {
- debugfs_remove_recursive(bat_priv->debug_dir);
- bat_priv->debug_dir = NULL;
- }
-}