wimax: debugfs controls

Expose knobs to control the stack's debug output.

Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 90 insertions, 0 deletions

diff --git a/net/wimax/debugfs.c b/net/wimax/debugfs.c
new file mode 100644
index 000000000000..87cf4430079c
--- /dev/null
+++ b/net/wimax/debugfs.c
@@ -0,0 +1,90 @@
+/*
+ * Linux WiMAX
+ * Debugfs support
+ *
+ *
+ * Copyright (C) 2005-2006 Intel Corporation <linux-wimax@intel.com>
+ * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
+ *
+ * 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"
+
+
+/* Debug framework control of debug levels */
+struct d_level D_LEVEL[] = {
+        D_SUBMODULE_DEFINE(debugfs),
+        D_SUBMODULE_DEFINE(id_table),
+        D_SUBMODULE_DEFINE(op_msg),
+        D_SUBMODULE_DEFINE(op_reset),
+        D_SUBMODULE_DEFINE(op_rfkill),
+        D_SUBMODULE_DEFINE(stack),
+};
+size_t D_LEVEL_SIZE = ARRAY_SIZE(D_LEVEL);
+
+#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_", 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);
+}
+
+