From 8e58bce0409db7415b963fc394e93a2a4c68d61c Mon Sep 17 00:00:00 2001
From: Amir Rossert <amir.rossert@gmail.com>
Date: Thu, 20 Oct 2022 19:13:28 -0400
Subject: [PATCH] Linux: fix missing SPEED_UNKNOWN definition (#2156)

Signed-off-by: Amir Rossert <amir.rossert@gmail.com>
---
 psutil/_psutil_linux.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/psutil/_psutil_linux.c b/psutil/_psutil_linux.c
index 1ed1f91a0..0bacb2048 100644
--- a/psutil/_psutil_linux.c
+++ b/psutil/_psutil_linux.c
@@ -58,6 +58,11 @@ static const int NCPUS_START = sizeof(unsigned long) * CHAR_BIT;
 #endif
 
 
+#ifndef SPEED_UNKNOWN
+    #define SPEED_UNKNOWN -1
+#endif
+
+
 #if PSUTIL_HAVE_IOPRIO
 enum {
     IOPRIO_WHO_PROCESS = 1,