selftests: firmware: only modprobe if driver is missing
No need to load test_firmware if its already there.
Also use a more generic form to recommend what is required
to be built.
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/tools/testing/selftests/firmware/fw_filesystem.sh b/tools/testing/selftests/firmware/fw_filesystem.sh
index 5c495ad..c8ccdaa 100755
--- a/tools/testing/selftests/firmware/fw_filesystem.sh
+++ b/tools/testing/selftests/firmware/fw_filesystem.sh
@@ -5,9 +5,24 @@
# know so we can be sure we're not accidentally testing the user helper.
set -e
-modprobe test_firmware
-
DIR=/sys/devices/virtual/misc/test_firmware
+TEST_DIR=$(dirname $0)
+
+test_modprobe()
+{
+ if [ ! -d $DIR ]; then
+ echo "$0: $DIR not present"
+ echo "You must have the following enabled in your kernel:"
+ cat $TEST_DIR/config
+ exit 1
+ fi
+}
+
+trap "test_modprobe" EXIT
+
+if [ ! -d $DIR ]; then
+ modprobe test_firmware
+fi
# CONFIG_FW_LOADER_USER_HELPER has a sysfs class under /sys/class/firmware/
# These days no one enables CONFIG_FW_LOADER_USER_HELPER so check for that