tree 500ce20507a4c75e1e179492b7d70f2135e1ca94
parent 0f3d2bd54f8fb178f516fc6903366e16e20f7428
author Andi Kleen <ak@suse.de> 1126599913 -0700
committer Linus Torvalds <torvalds@g5.osdl.org> 1126624948 -0700

[PATCH] Make BUILD_BUG_ON fail at compile time.

Force a compiler error instead of a link error, because they are easier to
track down.  Idea stolen from code by Jan Beulich <jbeulich@novell.com>

If the argument to BUILD_BUG_ON evaluates to non-zero the compiler will do:

	t.c:6: error: size of array `type name' is negative

(surprised that gcc doesn't have an extension for this)

Signed-off-by: "Andi Kleen" <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>