From 4393f43fbe0452c50eae27e002d28bd69719f755 Mon Sep 17 00:00:00 2001
From: Daniel Verkamp <daniel.verkamp@intel.com>
Date: Thu, 4 Jan 2018 21:20:09 -0700
Subject: [PATCH] setup.sh: fix NVMe status on older kernels

Very old kernels (e.g. 3.13 from Ubuntu 14.04) don't have the nvme
directory in /sys/bus/pci/devices/$bdf/, so check for its existence
before trying to list it.

Change-Id: I1f1ca04c71de6359de2b924fb9437ad03c56523b
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/393725
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
---
 scripts/setup.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/setup.sh b/scripts/setup.sh
index 0e28c8f32..a9cf63eb6 100755
--- a/scripts/setup.sh
+++ b/scripts/setup.sh
@@ -277,7 +277,7 @@ function status_linux {
 	for bdf in $(iter_pci_class_code 01 08 02); do
 		driver=`grep DRIVER /sys/bus/pci/devices/$bdf/uevent |awk -F"=" '{print $2}'`
 		node=`cat /sys/bus/pci/devices/$bdf/numa_node`;
-		if [ "$driver" = "nvme" ]; then
+		if [ "$driver" = "nvme" -a -d /sys/bus/pci/devices/$bdf/nvme ]; then
 			name="\t"`ls /sys/bus/pci/devices/$bdf/nvme`;
 		else
 			name="-";