[PATCH] kdbus: use FIELD_SIZEOF in kdbus_member_set_user macro

[Sergei Zviagintsev]

sizeof(((_t *)0)->_m) -> FIELD_SIZEOF(_t, _m)

Use conventional macro according to chapter 17 of
Documentation/CodingStyle.

Signed-off-by: Sergei Zviagintsev <sergei@xxxxxxxx>
---
 ipc/kdbus/util.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ipc/kdbus/util.h b/ipc/kdbus/util.h
index 9fedf8ab41cd..529716669fe7 100644
--- a/ipc/kdbus/util.h
+++ b/ipc/kdbus/util.h
@@ -40,7 +40,7 @@
 ({									\
 	u64 __user *_sz =						\
 		(void __user *)((u8 __user *)(_b) + offsetof(_t, _m));	\
-	copy_to_user(_sz, _s, sizeof(((_t *)0)->_m));			\
+	copy_to_user(_sz, _s, FIELD_SIZEOF(_t, _m));			\
 })
 
 /**
-- 
1.8.3.1

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