From c71d227fc4133f949dae620ed5e3a250b43f2415 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Wed, 29 Nov 2017 19:00:41 -0500
Subject: make kernel-side POLL... arch-independent

mangle/demangle on the way to/from userland

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 include/uapi/asm-generic/poll.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'include/uapi/asm-generic/poll.h')

diff --git a/include/uapi/asm-generic/poll.h b/include/uapi/asm-generic/poll.h
index 8c0e9dd384b6..639fade14b23 100644
--- a/include/uapi/asm-generic/poll.h
+++ b/include/uapi/asm-generic/poll.h
@@ -33,6 +33,20 @@
 
 #define POLL_BUSY_LOOP	(__force __poll_t)0x8000
 
+#ifdef __KERNEL__
+#ifndef __ARCH_HAS_MANGLED_POLL
+static inline __u16 mangle_poll(__poll_t val)
+{
+	return (__force __u16)val;
+}
+
+static inline __poll_t demangle_poll(__u16 v)
+{
+	return (__force __poll_t)v;
+}
+#endif
+#endif
+
 struct pollfd {
 	int fd;
 	short events;
-- 
cgit