From 4f11fa5b6c046732054c1636c40435043d9578fb Mon Sep 17 00:00:00 2001
From: Konrad Sztyber <konrad.sztyber@intel.com>
Date: Wed, 31 Mar 2021 17:35:36 +0200
Subject: [PATCH] scripts/setup: use `test -e` to test for msr presence

Current `test -f` never succeeds, because `/dev/cpu/0/msr` is a
character device file.

Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Change-Id: Iaa28f04866ab24140668ad43351a37f0ccccef65
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7166
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
---
 scripts/setup.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/setup.sh b/scripts/setup.sh
index a2319ec71..4d2346424 100755
--- a/scripts/setup.sh
+++ b/scripts/setup.sh
@@ -509,7 +509,7 @@ function configure_linux() {
 		fi
 	fi
 
-	if [ ! -f /dev/cpu/0/msr ]; then
+	if [ ! -e /dev/cpu/0/msr ]; then
 		# Some distros build msr as a module.  Make sure it's loaded to ensure
 		#  DPDK can easily figure out the TSC rate rather than relying on 100ms
 		#  sleeps.