ACPI: Cleanup custom_method debug stuff

- Move param aml_debug_output to other params into sysfs.c
- Split acpi_debugfs_init to prepare custom_method to be
  an own .config option and driver.

Signed-off-by: Thomas Renninger <trenn@suse.de>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: rui.zhang@intel.com
Signed-off-by: Len Brown <len.brown@intel.com>

3 files changed, 23 insertions, 20 deletions

diff --git a/drivers/acpi/debugfs.c b/drivers/acpi/debugfs.c
index 384f7abcff77..e7abc6e3bba0 100644
--- a/drivers/acpi/debugfs.c
+++ b/drivers/acpi/debugfs.c
@@ -12,13 +12,8 @@
 #define _COMPONENT              ACPI_SYSTEM_COMPONENT
 ACPI_MODULE_NAME("debugfs");
 
-
-/* /sys/modules/acpi/parameters/aml_debug_output */
-
-module_param_named(aml_debug_output, acpi_gbl_enable_aml_debug_object,
-                   bool, 0644);
-MODULE_PARM_DESC(aml_debug_output,
-                 "To enable/disable the ACPI Debug Object output.");
+struct dentry *acpi_debugfs_dir;
+static struct dentry *cm_dentry;
 
 /* /sys/kernel/debug/acpi/custom_method */
 
@@ -80,23 +75,22 @@ static const struct file_operations cm_fops = {
         .llseek = default_llseek,
 };
 
-int __init acpi_debugfs_init(void)
+static int __init acpi_custom_method_init(void)
 {
-        struct dentry *acpi_dir, *cm_dentry;
-
-        acpi_dir = debugfs_create_dir("acpi", NULL);
-        if (!acpi_dir)
-                goto err;
+        if (!acpi_debugfs_dir)
+                return -ENOENT;
 
         cm_dentry = debugfs_create_file("custom_method", S_IWUSR,
-                                        acpi_dir, NULL, &cm_fops);
+                                        acpi_debugfs_dir, NULL, &cm_fops);
         if (!cm_dentry)
-                goto err;
+                return -ENODEV;
 
         return 0;
+}
+
+void __init acpi_debugfs_init(void)
+{
+        acpi_debugfs_dir = debugfs_create_dir("acpi", NULL);
 
-err:
-        if (acpi_dir)
-                debugfs_remove(acpi_dir);
-        return -EINVAL;
+        acpi_custom_method_init();
 }
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 4bfb759deb10..ca75b9ce0489 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -28,9 +28,10 @@ int acpi_scan_init(void);
 int acpi_sysfs_init(void);
 
 #ifdef CONFIG_DEBUG_FS
+extern struct dentry *acpi_debugfs_dir;
 int acpi_debugfs_init(void);
 #else
-static inline int acpi_debugfs_init(void) { return 0; }
+static inline void acpi_debugfs_init(void) { return; }
 #endif
 
 /* --------------------------------------------------------------------------
diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c
index 61891e75583d..77255f250dbb 100644
--- a/drivers/acpi/sysfs.c
+++ b/drivers/acpi/sysfs.c
@@ -220,6 +220,14 @@ module_param_call(trace_state, param_set_trace_state, param_get_trace_state,
                   NULL, 0644);
 #endif /* CONFIG_ACPI_DEBUG */
 
+
+/* /sys/modules/acpi/parameters/aml_debug_output */
+
+module_param_named(aml_debug_output, acpi_gbl_enable_aml_debug_object,
+                   bool, 0644);
+MODULE_PARM_DESC(aml_debug_output,
+                 "To enable/disable the ACPI Debug Object output.");
+
 /* /sys/module/acpi/parameters/acpica_version */
 static int param_get_acpica_version(char *buffer, struct kernel_param *kp)
 {