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-rw-r--r--include/asm-s390/compat.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/asm-s390/compat.h b/include/asm-s390/compat.h
index a007715f4ae..356a0b18353 100644
--- a/include/asm-s390/compat.h
+++ b/include/asm-s390/compat.h
@@ -128,6 +128,11 @@ static inline void __user *compat_ptr(compat_uptr_t uptr)
return (void __user *)(unsigned long)(uptr & 0x7fffffffUL);
}
+static inline compat_uptr_t ptr_to_compat(void __user *uptr)
+{
+ return (u32)(unsigned long)uptr;
+}
+
static inline void __user *compat_alloc_user_space(long len)
{
unsigned long stack;