debugfs.c

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/*
 * Linux WiMAX
 * Debugfs support
 *
 *
 * Copyright (C) 2005-2006 Intel Corporation <[email protected]>
 * Inaky Perez-Gonzalez <[email protected]>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License version
 * 2 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 <linux/debugfs.h>
#include <linux/wimax.h>
#include "wimax-internal.h"

#define D_SUBMODULE debugfs
#include "debug-levels.h"


#define __debugfs_register(prefix, name, parent)            \
do {                                    \
    result = d_level_register_debugfs(prefix, name, parent);    \
    if (result < 0)                         \
        goto error;                     \
} while (0)


int wimax_debugfs_add(struct wimax_dev *wimax_dev)
{
    int result;
    struct net_device *net_dev = wimax_dev->net_dev;
    struct device *dev = net_dev->dev.parent;
    struct dentry *dentry;
    char buf[128];

    snprintf(buf, sizeof(buf), "wimax:%s", net_dev->name);
    dentry = debugfs_create_dir(buf, NULL);
    result = PTR_ERR(dentry);
    if (IS_ERR(dentry)) {
        if (result == -ENODEV)
            result = 0; /* No debugfs support */
        else
            dev_err(dev, "Can't create debugfs dentry: %d\n",
                result);
        goto out;
    }
    wimax_dev->debugfs_dentry = dentry;
    __debugfs_register("wimax_dl_", debugfs, dentry);
    __debugfs_register("wimax_dl_", id_table, dentry);
    __debugfs_register("wimax_dl_", op_msg, dentry);
    __debugfs_register("wimax_dl_", op_reset, dentry);
    __debugfs_register("wimax_dl_", op_rfkill, dentry);
    __debugfs_register("wimax_dl_", op_state_get, dentry);
    __debugfs_register("wimax_dl_", stack, dentry);
    result = 0;
out:
    return result;

error:
    debugfs_remove_recursive(wimax_dev->debugfs_dentry);
    return result;
}

void wimax_debugfs_rm(struct wimax_dev *wimax_dev)
{
    debugfs_remove_recursive(wimax_dev->debugfs_dentry);
}