X-Git-Url: https://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=arch_atomic_s390.h;h=8857d422e2f53d8899bc741778dbe99bf42eebe4;hp=cb85e6a0ae80b83698f2a23ba1630ff53ca3425a;hb=2f873279bc92fac32e6549d6eb72f3197c7048ac;hpb=ac26f1a80b59a596a904a8d3a271460c8eb4334d

diff --git a/arch_atomic_s390.h b/arch_atomic_s390.h
index cb85e6a..8857d42 100644
--- a/arch_atomic_s390.h
+++ b/arch_atomic_s390.h
@@ -2,17 +2,30 @@
 #define _ARCH_ATOMIC_S390_H
 
 /*
- * Atomic exchange operations for the S390 architecture.
+ * Atomic exchange operations for the S390 architecture. Based on information
+ * taken from the Principles of Operation Appendix A "Conditional Swapping
+ * Instructions (CS, CDS)".
  *
- * Copyright (C) 2009 Novell, Inc.
+ * Copyright (c) 2009 Novell, Inc.
  * Author: Jan Blunck <jblunck@suse.de>
  *
- * This is taken from the Principles of Operation Appendix A "Conditional
- * Swapping Instructions (CS, CDS)".
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU Lesser General Public License version 2.1 as
- * published by the Free  Software Foundation.
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
  */
 
 #ifndef __SIZEOF_LONG__
@@ -29,7 +42,7 @@
 
 #ifndef _INCLUDE_API_H
 
-static __attribute__((always_inline))
+static inline __attribute__((always_inline))
 unsigned int atomic_exchange_32(volatile unsigned int *addr, unsigned int val)
 {
 	unsigned int result;
@@ -46,7 +59,7 @@ unsigned int atomic_exchange_32(volatile unsigned int *addr, unsigned int val)
 
 #if (BITS_PER_LONG == 64)
 
-static __attribute__((always_inline))
+static inline __attribute__((always_inline))
 unsigned long atomic_exchange_64(volatile unsigned long *addr,
 				 unsigned long val)
 {
@@ -64,7 +77,7 @@ unsigned long atomic_exchange_64(volatile unsigned long *addr,
 
 #endif
 
-static __attribute__((always_inline))
+static inline __attribute__((always_inline))
 unsigned long _atomic_exchange(volatile void *addr, unsigned long val, int len)
 {
 	switch (len) {
@@ -81,8 +94,9 @@ unsigned long _atomic_exchange(volatile void *addr, unsigned long val, int len)
 	return 0;
 }
 
-#define xchg(addr, v)	(__typeof__(*(addr))) _atomic_exchange((addr), (v), \
-							       sizeof(*(addr)))
+#define xchg(addr, v)							\
+	(__typeof__(*(addr))) _atomic_exchange((addr), (unsigned long)(v), \
+					       sizeof(*(addr)))
 
 #endif /* #ifndef _INCLUDE_API_H */