From c000a3f70b74752a307d533c3cd7432ce7ebff83 Mon Sep 17 00:00:00 2001
From: Qiang Zhang <qiang4.zhang@intel.com>
Date: Thu, 31 Aug 2023 13:58:37 +0800
Subject: [PATCH] hv: add clamp macro for convenience

Add clamp macro to clamp a value within a range.

Tracked-On: #8500
Reviewed-by: Junjie Mao <junjie.mao@intel.com>
Signed-off-by: Qiang Zhang <qiang4.zhang@intel.com>
---
 hypervisor/include/lib/util.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/hypervisor/include/lib/util.h b/hypervisor/include/lib/util.h
index 176455a3e..c7e3604d2 100644
--- a/hypervisor/include/lib/util.h
+++ b/hypervisor/include/lib/util.h
@@ -22,6 +22,9 @@
 
 #define max(x, y)	(((x) < (y)) ? (y) : (x))
 
+/** return a value of v clamped to the range [l, h] */
+#define clamp(v, l, h)	(max(min((v), (h)), (l)))
+
 /** Replaces 'x' by the string "x". */
 #define STRINGIFY(x) #x