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Commit eb67bc3f authored by Luis R. Rodriguez's avatar Luis R. Rodriguez Committed by Greg Kroah-Hartman
Browse files

tools: firmware: add fallback cancelation testing 



Add a test case for cancelling the sync fallback mechanism.

Signed-off-by: default avatarLuis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 823b0221

tools/testing/selftests/firmware/fw_fallback.sh

+32 −0
Original line number Diff line number Diff line
@@ -58,6 +58,31 @@ load_fw() 
	wait

}



load_fw_cancel()

{

	local name="$1"

	local file="$2"



	# This will block until our load (below) has finished.

	echo -n "$name" >"$DIR"/trigger_request 2>/dev/null &



	# Give kernel a chance to react.

	local timeout=10

	while [ ! -e "$DIR"/"$name"/loading ]; do

		sleep 0.1

		timeout=$(( $timeout - 1 ))

		if [ "$timeout" -eq 0 ]; then

			echo "$0: firmware interface never appeared" >&2

			exit 1

		fi

	done



	echo -1 >"$DIR"/"$name"/loading



	# Wait for request to finish.

	wait

}



trap "test_finish" EXIT



# This is an unlikely real-world firmware content. :)
@@ -118,7 +143,14 @@ if ! diff -q "$FW" /dev/test_firmware >/dev/null ; then 
	exit 1

else

	echo "$0: fallback mechanism works"

fi



load_fw_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 fallback mechanism works"

fi



exit 0