[src/trunk]: src/sys/external/bsd/drm2/include/linux Make uninitialized_var k...

[riastradh <riastradh%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/c44c538de03f
branches:  trunk
changeset: 794662:c44c538de03f
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Fri Mar 21 02:25:05 2014 +0000

description:
Make uninitialized_var kludge expand to `x = 0'.

Forgot to commit this the other day.

diffstat:

 sys/external/bsd/drm2/include/linux/kernel.h |  8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)

diffs (22 lines):

diff -r c7401277cd0b -r c44c538de03f sys/external/bsd/drm2/include/linux/kernel.h
--- a/sys/external/bsd/drm2/include/linux/kernel.h      Fri Mar 21 01:43:33 2014 +0000
+++ b/sys/external/bsd/drm2/include/linux/kernel.h      Fri Mar 21 02:25:05 2014 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: kernel.h,v 1.2 2014/03/18 18:20:43 riastradh Exp $     */
+/*     $NetBSD: kernel.h,v 1.3 2014/03/21 02:25:05 riastradh Exp $     */
 
 /*-
  * Copyright (c) 2013 The NetBSD Foundation, Inc.
@@ -44,7 +44,11 @@
 #define        barrier()       __insn_barrier()
 #define        unlikely(X)     __predict_false(X)
 
-#define        uninitialized_var(x)    x
+/*
+ * XXX Linux kludge to work around GCC uninitialized variable warning.
+ * Linux does `x = x', which is bollocks.
+ */
+#define        uninitialized_var(x)    x = 0
 
 /* XXX These will multiply evaluate their arguments.  */
 #define        max_t(T, X, Y)  MAX(X, Y)