ipc: add definitions of USHORT_MAX and others

Add definitions of USHORT_MAX and others into kernel.  ipc uses it and slub
implementation might also use it.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Zhang Yanmin <yanmin.zhang@intel.com>
Reviewed-by: Christoph Lameter <clameter@sgi.com>
Cc: Nadia Derbey <Nadia.Derbey@bull.net>
Cc: "Pierre Peiffer" <peifferp@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index ad5d05efcd1a..53839ba265ec 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -20,6 +20,9 @@
 extern const char linux_banner[];
 extern const char linux_proc_banner[];
 
+#define USHORT_MAX      ((u16)(~0U))
+#define SHORT_MAX       ((s16)(USHORT_MAX>>1))
+#define SHORT_MIN       (-SHORT_MAX - 1)
 #define INT_MAX         ((int)(~0U>>1))
 #define INT_MIN         (-INT_MAX - 1)
 #define UINT_MAX        (~0U)