From: Jesse Gross <jesse@nicira.com>
Date: Thu, 3 Mar 2011 21:38:09 +0000 (-0800)
Subject: datapath: Add backport for USHRT_MAX.
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f45ee2cd9a8cd2a4f2a60fd36da9f95775e2efa6;p=openvswitch

datapath: Add backport for USHRT_MAX.

Kernels before 2.6.26 didn't have type limits for short at all
and before 2.6.35 it was called SHORT instead of SHRT.

Signed-off-by: Jesse Gross <jesse@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
---

diff --git a/datapath/linux-2.6/compat-2.6/include/linux/kernel.h b/datapath/linux-2.6/compat-2.6/include/linux/kernel.h
index 1c9f4014..2c2220b9 100644
--- a/datapath/linux-2.6/compat-2.6/include/linux/kernel.h
+++ b/datapath/linux-2.6/compat-2.6/include/linux/kernel.h
@@ -48,4 +48,10 @@
 #error "CONFIG_PREEMPT is broken before 2.6.21--see commit 4498121ca3, \"[NET]: Handle disabled preemption in gfp_any()\""
 #endif
 
+#ifndef USHRT_MAX
+#define USHRT_MAX	((u16)(~0U))
+#define SHRT_MAX	((s16)(USHRT_MAX>>1))
+#define SHRT_MIN	((s16)(-SHRT_MAX - 1))
+#endif
+
 #endif /* linux/kernel.h */