1 files changed, 50 insertions, 0 deletions
diff --git a/include/asm-generic/vdso/vsyscall.h b/include/asm-generic/vdso/vsyscall.h
new file mode 100644
index 000000000000..e94b19782c92
--- /dev/null
+++ b/include/asm-generic/vdso/vsyscall.h
@@ -0,0 +1,50 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_GENERIC_VSYSCALL_H
+#define __ASM_GENERIC_VSYSCALL_H
+
+#ifndef __ASSEMBLY__
+
+#ifndef __arch_get_k_vdso_data
+static __always_inline struct vdso_data *__arch_get_k_vdso_data(void)
+{
+	return NULL;
+}
+#endif /* __arch_get_k_vdso_data */
+
+#ifndef __arch_update_vdso_data
+static __always_inline int __arch_update_vdso_data(void)
+{
+	return 0;
+}
+#endif /* __arch_update_vdso_data */
+
+#ifndef __arch_get_clock_mode
+static __always_inline int __arch_get_clock_mode(struct timekeeper *tk)
+{
+	return 0;
+}
+#endif /* __arch_get_clock_mode */
+
+#ifndef __arch_use_vsyscall
+static __always_inline int __arch_use_vsyscall(struct vdso_data *vdata)
+{
+	return 1;
+}
+#endif /* __arch_use_vsyscall */
+
+#ifndef __arch_update_vsyscall
+static __always_inline void __arch_update_vsyscall(struct vdso_data *vdata,
+						   struct timekeeper *tk)
+{
+}
+#endif /* __arch_update_vsyscall */
+
+#ifndef __arch_sync_vdso_data
+static __always_inline void __arch_sync_vdso_data(struct vdso_data *vdata)
+{
+}
+#endif /* __arch_sync_vdso_data */
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* __ASM_GENERIC_VSYSCALL_H */