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include/linux/compiler-gcc.h: use __same_type() in __must_be_array() 

We should use the __same_type() helper in __must_be_array().

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Reported-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Rusty Russell 2010-08-09 17:20:18 -07:00 committed by Linus Torvalds
parent 7387be3373
commit ea6b101d8a
1 changed files with 1 additions and 2 deletions
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3
include/linux/compiler-gcc.h
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@ -35,8 +35,7 @@
(typeof(ptr)) (__ptr + (off)); })
/* &a[0] degrades to a pointer: a different type from an array */
#define __must_be_array(a) \
BUILD_BUG_ON_ZERO(__builtin_types_compatible_p(typeof(a), typeof(&a[0])))
#define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0]))
/*
* Force always-inline if the user requests it so via the .config,