From e4ef7b3910036f5f381f14ecc2774ecef5557399 Mon Sep 17 00:00:00 2001
From: Jim Harris <james.r.harris@intel.com>
Date: Thu, 13 Jan 2022 17:55:00 +0000
Subject: [PATCH] setup.sh: fix incorrect help message

Reported-by: Chris Demia on Slack
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Ib77cee03fbd9eaf600f2c0b74f5b6ceae9624600
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/11108
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Dong Yi <dongx.yi@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
---
 scripts/setup.sh | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/scripts/setup.sh b/scripts/setup.sh
index c044eb685..2fd520ac4 100755
--- a/scripts/setup.sh
+++ b/scripts/setup.sh
@@ -63,8 +63,9 @@ function usage() {
 	echo "PCI_BLOCKED       Whitespace separated list of PCI devices (NVMe, I/OAT, VMD, Virtio)."
 	echo "                  Each device must be specified as a full PCI address."
 	echo "                  E.g. PCI_ALLOWED=\"0000:01:00.0 0000:02:00.0\""
-	echo "                  To block all PCI devices use a non-valid address."
-	echo "                  E.g. PCI_BLOCKED=\"none\""
+	echo "                  To block all PCI devices: PCI_ALLOWED=\"none\""
+	echo "                  To allow all PCI devices except 0000:01:00.0: PCI_BLOCKED=\"0000:01:00.0\""
+	echo "                  To allow only PCI device 0000:01:00.0: PCI_ALLOWED=\"0000:01:00.0\""
 	echo "                  If PCI_ALLOWED and PCI_BLOCKED are empty or unset, all PCI devices"
 	echo "                  will be bound."
 	echo "                  Each device in PCI_BLOCKED will be ignored (driver won't be changed)."