1 files changed, 17 insertions, 6 deletions

diff --git a/include/asm-x86/vdso.h b/include/asm-x86/vdso.h
index 629bcb6e8e45..86e085e003d2 100644
--- a/include/asm-x86/vdso.h
+++ b/include/asm-x86/vdso.h
@@ -8,9 +8,11 @@ extern const char VDSO64_PRELINK[];
  * Given a pointer to the vDSO image, find the pointer to VDSO64_name
  * as that symbol is defined in the vDSO sources or linker script.
  */
-#define VDSO64_SYMBOL(base, name) ({            \
-        extern const char VDSO64_##name[];      \
-        (void *) (VDSO64_##name - VDSO64_PRELINK + (unsigned long) (base)); })
+#define VDSO64_SYMBOL(base, name)                                       \
+({                                                                      \
+        extern const char VDSO64_##name[];                              \
+        (void *)(VDSO64_##name - VDSO64_PRELINK + (unsigned long)(base)); \
+})
 #endif
 
 #if defined CONFIG_X86_32 || defined CONFIG_COMPAT
@@ -20,9 +22,18 @@ extern const char VDSO32_PRELINK[];
  * Given a pointer to the vDSO image, find the pointer to VDSO32_name
  * as that symbol is defined in the vDSO sources or linker script.
  */
-#define VDSO32_SYMBOL(base, name) ({            \
-        extern const char VDSO32_##name[];      \
-        (void *) (VDSO32_##name - VDSO32_PRELINK + (unsigned long) (base)); })
+#define VDSO32_SYMBOL(base, name)                                       \
+({                                                                      \
+        extern const char VDSO32_##name[];                              \
+        (void *)(VDSO32_##name - VDSO32_PRELINK + (unsigned long)(base)); \
+})
 #endif
 
+/*
+ * These symbols are defined with the addresses in the vsyscall page.
+ * See vsyscall-sigreturn.S.
+ */
+extern void __user __kernel_sigreturn;
+extern void __user __kernel_rt_sigreturn;
+
 #endif  /* asm-x86/vdso.h */