--- kernel/linux/sysfs.c.orig	2015-05-05 00:16:41 UTC
+++ kernel/linux/sysfs.c
@@ -1,49 +0,0 @@
-// Copyright 2004-present Facebook. All Rights Reserved.
-
-#include <linux/sysfs.h>
-#include <linux/kobject.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-
-#include "hash.h"
-#include "sysfs.h"
-
-struct kobject *camb_kobj;
-
-extern ssize_t syscall_addr_modified_show(struct kobject *obj,
-                                          struct attribute *attr,
-                                          char *buf);
-extern ssize_t text_segment_hash_show(struct kobject *obj,
-                                      struct attribute *attr,
-                                      char *buf);
-
-struct kobj_attribute attr_syscall_addr_modified =
-  __ATTR(syscall_addr_modified, 0444, syscall_addr_modified_show, NULL);
-
-struct kobj_attribute attr_text_segment_hash =
-  __ATTR(text_segment_hash, 0444, text_segment_hash_show, NULL);
-
-struct attribute *camb_attrs[] = {
-  &attr_text_segment_hash.attr,
-  &attr_syscall_addr_modified.attr,
-  NULL,
-};
-
-struct attribute_group attr_group = {
-  .attrs = camb_attrs
-};
-
-int expose_sysfs(void) {
-  int err = 0;
-  camb_kobj = kobject_create_and_add("camb", kernel_kobj);
-  if (camb_kobj) {
-    if ((err = sysfs_create_group(camb_kobj, &attr_group)) != 0) {
-      kobject_put(camb_kobj);
-    }
-  }
-  return err;
-}
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("@unixist");
-MODULE_DESCRIPTION("Detect kernel tampering");