Address feedback. Add doc strings

volatility3/framework/symbols/linux/__init__.py

@@ -7,7 +7,7 @@
 import functools
 import logging
 from abc import ABC, abstractmethod
-from typing import Iterator, List, Tuple, Optional, Union, Dict
+from typing import List, Tuple, Optional, Union, Dict, Generator, Iterator
 
 import volatility3.framework.symbols.linux.utilities.modules as linux_utilities_modules
 from volatility3 import framework
@@ -429,7 +429,28 @@ def lookup_module_address(
         )
 
     @classmethod
-    def walk_internal_list(cls, vmlinux, struct_name, list_member, list_start):
+    def walk_internal_list(
+        cls,
+        vmlinux: interfaces.context.ModuleInterface,
+        struct_name: str,
+        list_member: str,
+        list_start: interfaces.objects.ObjectInterface,
+        max_count: int = 4096,
+    ) -> Generator[interfaces.objects.ObjectInterface, None, None]:
+        """
+        An API that provides generic, smear-resistant enumeration of embedded lists
+
+        Args:
+            vmlinux:
+            struct_name: name of the structure of the list elements
+            list_member: name of the list_member holding the internal list
+            list_start: Starting (head) member of the list
+            max_count: Optional maximum amount of list elements that will be yielded
+
+        Returns:
+            Instances of `struct_name`
+        """
+
         count = 0
         seen = set()
 
@@ -452,9 +473,9 @@ def walk_internal_list(cls, vmlinux, struct_name, list_member, list_start):
 
             list_start = getattr(list_struct, list_member)
 
-            if count == 4096:
+            if count == max_count:
                 vollog.debug(
-                    f"walk_internal_list: Breaking list enumeration at {count}"
+                    f"walk_internal_list: Breaking list enumeration at maximum allowed count of {count}"
                 )
                 break