linux-kernel - [PATCH 2/2] selftests: firmware: skip unsupported custom firmware fallback tests

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Message-Id: <1510141660-31612-3-git-send-email-amit.pundir@linaro.org>
Date:   Wed,  8 Nov 2017 17:17:40 +0530
From:   Amit Pundir <amit.pundir@...aro.org>
To:     kselftest <linux-kselftest@...r.kernel.org>,
        lkml <linux-kernel@...r.kernel.org>
Cc:     Shuah Khan <shuah@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Luis R . Rodriguez" <mcgrof@...nel.org>,
        Masami Hiramatsu <masami.hiramatsu@...aro.org>,
        Sumit Semwal <sumit.semwal@...aro.org>
Subject: [PATCH 2/2] selftests: firmware: skip unsupported custom firmware fallback tests

Ignore custom firmware loading and cancellation tests on older
kernel releases, which do not support this feature.

Signed-off-by: Amit Pundir <amit.pundir@...aro.org>
---
 tools/testing/selftests/firmware/fw_fallback.sh | 38 +++++++++++++++++--------
 1 file changed, 26 insertions(+), 12 deletions(-)

diff --git a/tools/testing/selftests/firmware/fw_fallback.sh b/tools/testing/selftests/firmware/fw_fallback.sh
index a52a3bab532b..72858c921eed 100755
--- a/tools/testing/selftests/firmware/fw_fallback.sh
+++ b/tools/testing/selftests/firmware/fw_fallback.sh
@@ -86,6 +86,11 @@ load_fw_cancel()
 
 load_fw_custom()
 {
+	if [ ! -e "$DIR"/trigger_custom_fallback ]; then
+		echo "$0: custom fallback loading trigger not supported" >&2
+		return 1
+	fi
+
 	local name="$1"
 	local file="$2"
 
@@ -108,11 +113,17 @@ load_fw_custom()
 
 	# Wait for request to finish.
 	wait
+	return 0
 }
 
 
 load_fw_custom_cancel()
 {
+	if [ ! -e "$DIR"/trigger_custom_fallback ]; then
+		echo "$0: cancelling custom fallback trigger not supported" >&2
+		return 1
+	fi
+
 	local name="$1"
 	local file="$2"
 
@@ -133,6 +144,7 @@ load_fw_custom_cancel()
 
 	# Wait for request to finish.
 	wait
+	return 0
 }
 
 load_fw_fallback_with_child()
@@ -227,20 +239,22 @@ else
 	echo "$0: cancelling fallback mechanism works"
 fi
 
-load_fw_custom "$NAME" "$FW"
-if ! diff -q "$FW" /dev/test_firmware >/dev/null ; then
-	echo "$0: firmware was not loaded" >&2
-	exit 1
-else
-	echo "$0: custom fallback loading mechanism works"
+if load_fw_custom "$NAME" "$FW" ; then
+	if ! diff -q "$FW" /dev/test_firmware >/dev/null ; then
+		echo "$0: firmware was not loaded" >&2
+		exit 1
+	else
+		echo "$0: custom fallback loading mechanism works"
+	fi
 fi
 
-load_fw_custom_cancel "nope-$NAME" "$FW"
-if diff -q "$FW" /dev/test_firmware >/dev/null ; then
-	echo "$0: firmware was expected to be cancelled" >&2
-	exit 1
-else
-	echo "$0: cancelling custom fallback mechanism works"
+if load_fw_custom_cancel "nope-$NAME" "$FW" ; then
+	if diff -q "$FW" /dev/test_firmware >/dev/null ; then
+		echo "$0: firmware was expected to be cancelled" >&2
+		exit 1
+	else
+		echo "$0: cancelling custom fallback mechanism works"
+	fi
 fi
 
 set +e
-- 
2.7.4