Module: xenomai-2.6
Branch: master
Commit: 6fd8de1f5bdd69b09dcb8ef2fb9f1e4508ed9789
URL:
http://git.xenomai.org/?p=xenomai-2.6.git;a=commit;h=6fd8de1f5bdd69b09dcb8ef2fb9f1e4508ed9789
Author: Gilles Chanteperdrix <gilles.chanteperd...@xenomai.org>
Date: Wed Dec 19 20:46:16 2012 +0100
wrappers: define the clamp() macro for older kernels
---
include/asm-generic/wrappers.h | 11 +++++++++++
1 files changed, 11 insertions(+), 0 deletions(-)
diff --git a/include/asm-generic/wrappers.h b/include/asm-generic/wrappers.h
index c2ed2b5..5a06035 100644
--- a/include/asm-generic/wrappers.h
+++ b/include/asm-generic/wrappers.h
@@ -508,6 +508,17 @@ static inline void *kzalloc(size_t size, int flags)
#define IRQF_SHARED SA_SHIRQ
#endif /* < 2.6.18 */
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26)
+#define clamp(val, min, max) ({ \
+ typeof(val) __val = (val); \
+ typeof(min) __min = (min); \
+ typeof(max) __max = (max); \
+ (void) (&__val == &__min); \
+ (void) (&__val == &__max); \
+ __val = __val < __min ? __min: __val; \
+ __val > __max ? __max: __val; })
+#endif /* < 2.6.25 */
+
#if defined(CONFIG_LTT) || \
(LINUX_VERSION_CODE > KERNEL_VERSION(2,6,31) && defined(CONFIG_MARKERS))
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