Revert "kernel: disable module verification"

This reverts commit d492913.

kernel/module.c

@@ -1350,7 +1350,7 @@ static int check_version(const struct load_info *info,
 bad_version:
 	pr_warn("%s: disagrees about version of symbol %s\n",
 	       info->name, symname);
-	return 1;
+	return 0;
 }
 
 static inline int check_modstruct_version(const struct load_info *info,
@@ -2917,10 +2917,6 @@ static int module_sig_check(struct load_info *info, int flags)
 	const char *reason;
 	const void *mod = info->hdr;
 
-#if 1
-	return 0;
-#endif
-
 	/*
 	 * Require flags == 0, as a module with version information
 	 * removed is no longer the module that was signed
@@ -4017,11 +4013,6 @@ static int load_module(struct load_info *info, const char __user *uargs,
 		goto free_copy;
 	}
 
-#if 1
-	flags |= MODULE_INIT_IGNORE_MODVERSIONS;
-	flags |= MODULE_INIT_IGNORE_VERMAGIC;
-#endif
-
 	err = rewrite_section_headers(info, flags);
 	if (err)
 		goto free_copy;