[PATCH v2 13/23] test_firmware: wrap sysfs timeout test into helper

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This cannot run on all kernel builds. This will help us later
skip this test on kernel configs where non-applicable.

Signed-off-by: Luis R. Rodriguez <mcgrof@xxxxxxxxxx>
---
 tools/testing/selftests/firmware/fw_fallback.sh | 69 +++++++++++++------------
 1 file changed, 37 insertions(+), 32 deletions(-)

diff --git a/tools/testing/selftests/firmware/fw_fallback.sh b/tools/testing/selftests/firmware/fw_fallback.sh
index 34a42c68ebfb..e364631837d6 100755
--- a/tools/testing/selftests/firmware/fw_fallback.sh
+++ b/tools/testing/selftests/firmware/fw_fallback.sh
@@ -175,39 +175,44 @@ trap "test_finish" EXIT
 echo "ABCD0123" >"$FW"
 NAME=$(basename "$FW")
 
-DEVPATH="$DIR"/"nope-$NAME"/loading
-
-# Test failure when doing nothing (timeout works).
-echo -n 2 >/sys/class/firmware/timeout
-echo -n "nope-$NAME" >"$DIR"/trigger_request 2>/dev/null &
-
-# Give the kernel some time to load the loading file, must be less
-# than the timeout above.
-sleep 1
-if [ ! -f $DEVPATH ]; then
-	echo "$0: fallback mechanism immediately cancelled"
-	echo ""
-	echo "The file never appeared: $DEVPATH"
-	echo ""
-	echo "This might be a distribution udev rule setup by your distribution"
-	echo "to immediately cancel all fallback requests, this must be"
-	echo "removed before running these tests. To confirm look for"
-	echo "a firmware rule like /lib/udev/rules.d/50-firmware.rules"
-	echo "and see if you have something like this:"
-	echo ""
-	echo "SUBSYSTEM==\"firmware\", ACTION==\"add\", ATTR{loading}=\"-1\""
-	echo ""
-	echo "If you do remove this file or comment out this line before"
-	echo "proceeding with these tests."
-	exit 1
-fi
+test_syfs_timeout()
+{
+	DEVPATH="$DIR"/"nope-$NAME"/loading
+
+	# Test failure when doing nothing (timeout works).
+	echo -n 2 >/sys/class/firmware/timeout
+	echo -n "nope-$NAME" >"$DIR"/trigger_request 2>/dev/null &
+
+	# Give the kernel some time to load the loading file, must be less
+	# than the timeout above.
+	sleep 1
+	if [ ! -f $DEVPATH ]; then
+		echo "$0: fallback mechanism immediately cancelled"
+		echo ""
+		echo "The file never appeared: $DEVPATH"
+		echo ""
+		echo "This might be a distribution udev rule setup by your distribution"
+		echo "to immediately cancel all fallback requests, this must be"
+		echo "removed before running these tests. To confirm look for"
+		echo "a firmware rule like /lib/udev/rules.d/50-firmware.rules"
+		echo "and see if you have something like this:"
+		echo ""
+		echo "SUBSYSTEM==\"firmware\", ACTION==\"add\", ATTR{loading}=\"-1\""
+		echo ""
+		echo "If you do remove this file or comment out this line before"
+		echo "proceeding with these tests."
+		exit 1
+	fi
 
-if diff -q "$FW" /dev/test_firmware >/dev/null ; then
-	echo "$0: firmware was not expected to match" >&2
-	exit 1
-else
-	echo "$0: timeout works"
-fi
+	if diff -q "$FW" /dev/test_firmware >/dev/null ; then
+		echo "$0: firmware was not expected to match" >&2
+		exit 1
+	else
+		echo "$0: timeout works"
+	fi
+}
+
+test_syfs_timeout
 
 # Put timeout high enough for us to do work but not so long that failures
 # slow down this test too much.
-- 
2.15.0




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