linux-kernel - [PATCH 4.9 77/84] NTB: ntb_test: fix bug printing ntb

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Date:   Mon, 28 Aug 2017 10:05:42 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Logan Gunthorpe <logang@...tatee.com>,
        Allen Hubbe <Allen.Hubbe@...l.com>,
        Jon Mason <jdmason@...zu.us>
Subject: [PATCH 4.9 77/84] NTB: ntb_test: fix bug printing ntb_perf results

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Logan Gunthorpe <logang@...tatee.com>

commit 07b0b22b3e58824f70b9188d085d400069ca3240 upstream.

The code mistakenly prints the local perf results for the remote test
so the script reports identical results for both directions. Fix this
by ensuring we print the remote result.

Signed-off-by: Logan Gunthorpe <logang@...tatee.com>
Fixes: a9c59ef77458 ("ntb_test: Add a selftest script for the NTB subsystem")
Acked-by: Allen Hubbe <Allen.Hubbe@...l.com>
Signed-off-by: Jon Mason <jdmason@...zu.us>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 tools/testing/selftests/ntb/ntb_test.sh |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/tools/testing/selftests/ntb/ntb_test.sh
+++ b/tools/testing/selftests/ntb/ntb_test.sh
@@ -305,7 +305,7 @@ function perf_test()
 	echo "Running remote perf test $WITH DMA"
 	write_file "" $REMOTE_PERF/run
 	echo -n "  "
-	read_file $LOCAL_PERF/run
+	read_file $REMOTE_PERF/run
 	echo "  Passed"
 
 	_modprobe -r ntb_perf