Merge tag 'usercopy-v4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees...

[linux-2.6-microblaze.git] / arch / arm64 / include / asm / processor.h

diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h
index cee4ae2..6db43eb 100644 (file)
--- a/arch/arm64/include/asm/processor.h
+++ b/arch/arm64/include/asm/processor.h
@@ -113,6 +113,16 @@ struct thread_struct {
        struct debug_info       debug;          /* debugging */
 };
 
+/*
+ * Everything usercopied to/from thread_struct is statically-sized, so
+ * no hardened usercopy whitelist is needed.
+ */
+static inline void arch_thread_struct_whitelist(unsigned long *offset,
+                                               unsigned long *size)
+{
+       *offset = *size = 0;
+}
+
 #ifdef CONFIG_COMPAT
 #define task_user_tls(t)                                               \
 ({                                                                     \