1 files changed, 15 insertions, 0 deletions

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 6633e83e608a..93ed0b682adb 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2556,8 +2556,22 @@ extern struct mm_struct *mm_access(struct task_struct *task, unsigned int mode);
 /* Remove the current tasks stale references to the old mm_struct */
 extern void mm_release(struct task_struct *, struct mm_struct *);
 
+#ifdef CONFIG_HAVE_COPY_THREAD_TLS
+extern int copy_thread_tls(unsigned long, unsigned long, unsigned long,
+                        struct task_struct *, unsigned long);
+#else
 extern int copy_thread(unsigned long, unsigned long, unsigned long,
                         struct task_struct *);
+
+/* Architectures that haven't opted into copy_thread_tls get the tls argument
+ * via pt_regs, so ignore the tls argument passed via C. */
+static inline int copy_thread_tls(
+                unsigned long clone_flags, unsigned long sp, unsigned long arg,
+                struct task_struct *p, unsigned long tls)
+{
+        return copy_thread(clone_flags, sp, arg, p);
+}
+#endif
 extern void flush_thread(void);
 extern void exit_thread(void);
 
@@ -2576,6 +2590,7 @@ extern int do_execveat(int, struct filename *,
                        const char __user * const __user *,
                        const char __user * const __user *,
                        int);
+extern long _do_fork(unsigned long, unsigned long, unsigned long, int __user *, int __user *, unsigned long);
 extern long do_fork(unsigned long, unsigned long, unsigned long, int __user *, int __user *);
 struct task_struct *fork_idle(int);
 extern pid_t kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);