#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).
{
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;