diff --git a/arch/x86/um/shared/sysdep/ptrace_32.h b/arch/x86/um/shared/sysdep/ptrace_32.h
index ae00d22bce02..db8478a83a09 100644
--- a/arch/x86/um/shared/sysdep/ptrace_32.h
+++ b/arch/x86/um/shared/sysdep/ptrace_32.h
@@ -8,8 +8,6 @@
 
 #define MAX_FP_NR HOST_FPX_SIZE
 
-static inline void update_debugregs(int seq) {}
-
 void set_using_sysemu(int value);
 int get_using_sysemu(void);
 extern int sysemu_supported;