From ccf002223ce06012bf6bd94af7e17e132b0c43b1 Mon Sep 17 00:00:00 2001
From: "Devon H. O'Dell" <devon.odell@gmail.com>
Date: Wed, 2 Mar 2011 23:12:56 -0500
Subject: [PATCH] x86: fix btX functions

C casts to unsigned int by default, so we were experiencing some negative
undefined behavior in the 1 << 31 case. x86 now works; bts and btc are
both passing.
---
 include/ck_pr.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/ck_pr.h b/include/ck_pr.h
index bd5acff..29bb1a9 100644
--- a/include/ck_pr.h
+++ b/include/ck_pr.h
@@ -303,7 +303,7 @@ CK_PR_BIN_S(or, 8, uint8_t, |)
 		punt = ck_pr_load_##S(target);							\
 		previous = (T)punt;								\
 		while (ck_pr_cas_##S##_value(target, (C)previous,				\
-			(C)(previous P (R (1 << offset))), &previous) == false)			\
+			(C)(previous P (R ((T)1 << offset))), &previous) == false)		\
 				ck_pr_stall();							\
 		return ((previous >> offset) & 1);						\
 	}