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Diffstat (limited to 'tools/testing/selftests/firmware/fw_fallback.sh')
-rwxr-xr-xtools/testing/selftests/firmware/fw_fallback.sh65
1 files changed, 28 insertions, 37 deletions
diff --git a/tools/testing/selftests/firmware/fw_fallback.sh b/tools/testing/selftests/firmware/fw_fallback.sh
index 722cad91df74..8e2e34a2ca69 100755
--- a/tools/testing/selftests/firmware/fw_fallback.sh
+++ b/tools/testing/selftests/firmware/fw_fallback.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
# This validates that the kernel will fall back to using the fallback mechanism
# to load firmware it can't find on disk itself. We must request a firmware
@@ -6,31 +6,17 @@
# won't find so that we can do the load ourself manually.
set -e
-modprobe test_firmware
+TEST_REQS_FW_SYSFS_FALLBACK="yes"
+TEST_REQS_FW_SET_CUSTOM_PATH="no"
+TEST_DIR=$(dirname $0)
+source $TEST_DIR/fw_lib.sh
-DIR=/sys/devices/virtual/misc/test_firmware
+check_mods
+check_setup
+verify_reqs
+setup_tmp_file
-# CONFIG_FW_LOADER_USER_HELPER has a sysfs class under /sys/class/firmware/
-# These days no one enables CONFIG_FW_LOADER_USER_HELPER so check for that
-# as an indicator for CONFIG_FW_LOADER_USER_HELPER.
-HAS_FW_LOADER_USER_HELPER=$(if [ -d /sys/class/firmware/ ]; then echo yes; else echo no; fi)
-
-if [ "$HAS_FW_LOADER_USER_HELPER" = "yes" ]; then
- OLD_TIMEOUT=$(cat /sys/class/firmware/timeout)
-else
- echo "usermode helper disabled so ignoring test"
- exit 0
-fi
-
-FWPATH=$(mktemp -d)
-FW="$FWPATH/test-firmware.bin"
-
-test_finish()
-{
- echo "$OLD_TIMEOUT" >/sys/class/firmware/timeout
- rm -f "$FW"
- rmdir "$FWPATH"
-}
+trap "test_finish" EXIT
load_fw()
{
@@ -169,12 +155,6 @@ load_fw_fallback_with_child()
return $RET
}
-trap "test_finish" EXIT
-
-# This is an unlikely real-world firmware content. :)
-echo "ABCD0123" >"$FW"
-NAME=$(basename "$FW")
-
test_syfs_timeout()
{
DEVPATH="$DIR"/"nope-$NAME"/loading
@@ -258,8 +238,10 @@ run_sysfs_main_tests()
run_sysfs_custom_load_tests()
{
- if load_fw_custom "$NAME" "$FW" ; then
- if ! diff -q "$FW" /dev/test_firmware >/dev/null ; then
+ RANDOM_FILE_PATH=$(setup_random_file)
+ RANDOM_FILE="$(basename $RANDOM_FILE_PATH)"
+ if load_fw_custom "$RANDOM_FILE" "$RANDOM_FILE_PATH" ; then
+ if ! diff -q "$RANDOM_FILE_PATH" /dev/test_firmware >/dev/null ; then
echo "$0: firmware was not loaded" >&2
exit 1
else
@@ -267,8 +249,10 @@ run_sysfs_custom_load_tests()
fi
fi
- if load_fw_custom "$NAME" "$FW" ; then
- if ! diff -q "$FW" /dev/test_firmware >/dev/null ; then
+ RANDOM_FILE_PATH=$(setup_random_file)
+ RANDOM_FILE="$(basename $RANDOM_FILE_PATH)"
+ if load_fw_custom "$RANDOM_FILE" "$RANDOM_FILE_PATH" ; then
+ if ! diff -q "$RANDOM_FILE_PATH" /dev/test_firmware >/dev/null ; then
echo "$0: firmware was not loaded" >&2
exit 1
else
@@ -276,8 +260,12 @@ run_sysfs_custom_load_tests()
fi
fi
- if load_fw_custom_cancel "nope-$NAME" "$FW" ; then
- if diff -q "$FW" /dev/test_firmware >/dev/null ; then
+ RANDOM_FILE_REAL="$RANDOM_FILE_PATH"
+ FAKE_RANDOM_FILE_PATH=$(setup_random_file_fake)
+ FAKE_RANDOM_FILE="$(basename $FAKE_RANDOM_FILE_PATH)"
+
+ if load_fw_custom_cancel "$FAKE_RANDOM_FILE" "$RANDOM_FILE_REAL" ; then
+ if diff -q "$RANDOM_FILE_PATH" /dev/test_firmware >/dev/null ; then
echo "$0: firmware was expected to be cancelled" >&2
exit 1
else
@@ -286,7 +274,10 @@ run_sysfs_custom_load_tests()
fi
}
-run_sysfs_main_tests
+if [ "$HAS_FW_LOADER_USER_HELPER_FALLBACK" = "yes" ]; then
+ run_sysfs_main_tests
+fi
+
run_sysfs_custom_load_tests
exit 0