1 files changed, 1 insertions, 18 deletions

diff --git a/mm/usercopy.c b/mm/usercopy.c
index d155e12563b1..a9852b24715d 100644
--- a/mm/usercopy.c
+++ b/mm/usercopy.c
@@ -19,15 +19,9 @@
 #include <linux/sched.h>
 #include <linux/sched/task.h>
 #include <linux/sched/task_stack.h>
+#include <linux/thread_info.h>
 #include <asm/sections.h>
 
-enum {
-        BAD_STACK = -1,
-        NOT_STACK = 0,
-        GOOD_FRAME,
-        GOOD_STACK,
-};
-
 /*
  * Checks if a given pointer and length is contained by the current
  * stack frame (if possible).
@@ -206,17 +200,6 @@ static inline const char *check_heap_object(const void *ptr, unsigned long n,
 {
         struct page *page;
 
-        /*
-         * Some architectures (arm64) return true for virt_addr_valid() on
-         * vmalloced addresses. Work around this by checking for vmalloc
-         * first.
-         *
-         * We also need to check for module addresses explicitly since we
-         * may copy static data from modules to userspace
-         */
-        if (is_vmalloc_or_module_addr(ptr))
-                return NULL;
-
         if (!virt_addr_valid(ptr))
                 return NULL;