forked from Minki/linux
880444e214
Error that we expect should not be spilled to stdout. Without this we get: ./fw_filesystem.sh: line 58: printf: write error: Invalid argument ./fw_filesystem.sh: line 63: printf: write error: No such device ./fw_filesystem.sh: line 69: echo: write error: No such file or directory ./fw_filesystem.sh: filesystem loading works ./fw_filesystem.sh: async filesystem loading works With it: ./fw_filesystem.sh: filesystem loading works ./fw_filesystem.sh: async filesystem loading works Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
120 lines
3.1 KiB
Bash
Executable File
120 lines
3.1 KiB
Bash
Executable File
#!/bin/sh
|
|
# This validates that the kernel will load firmware out of its list of
|
|
# firmware locations on disk. Since the user helper does similar work,
|
|
# we reset the custom load directory to a location the user helper doesn't
|
|
# know so we can be sure we're not accidentally testing the user helper.
|
|
set -e
|
|
|
|
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 $DIR ]; then
|
|
modprobe test_firmware
|
|
fi
|
|
|
|
# CONFIG_FW_LOADER_USER_HELPER has a sysfs class under /sys/class/firmware/
|
|
# These days no one enables CONFIG_FW_LOADER_USER_HELPER so check for that
|
|
# as an indicator for CONFIG_FW_LOADER_USER_HELPER.
|
|
HAS_FW_LOADER_USER_HELPER=$(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)
|
|
fi
|
|
|
|
OLD_FWPATH=$(cat /sys/module/firmware_class/parameters/path)
|
|
|
|
FWPATH=$(mktemp -d)
|
|
FW="$FWPATH/test-firmware.bin"
|
|
|
|
test_finish()
|
|
{
|
|
if [ "$HAS_FW_LOADER_USER_HELPER" = "yes" ]; then
|
|
echo "$OLD_TIMEOUT" >/sys/class/firmware/timeout
|
|
fi
|
|
echo -n "$OLD_PATH" >/sys/module/firmware_class/parameters/path
|
|
rm -f "$FW"
|
|
rmdir "$FWPATH"
|
|
}
|
|
|
|
trap "test_finish" EXIT
|
|
|
|
if [ "$HAS_FW_LOADER_USER_HELPER" = "yes" ]; then
|
|
# Turn down the timeout so failures don't take so long.
|
|
echo 1 >/sys/class/firmware/timeout
|
|
fi
|
|
|
|
# Set the kernel search path.
|
|
echo -n "$FWPATH" >/sys/module/firmware_class/parameters/path
|
|
|
|
# This is an unlikely real-world firmware content. :)
|
|
echo "ABCD0123" >"$FW"
|
|
|
|
NAME=$(basename "$FW")
|
|
|
|
if printf '\000' >"$DIR"/trigger_request 2> /dev/null; then
|
|
echo "$0: empty filename should not succeed" >&2
|
|
exit 1
|
|
fi
|
|
|
|
if printf '\000' >"$DIR"/trigger_async_request 2> /dev/null; then
|
|
echo "$0: empty filename should not succeed (async)" >&2
|
|
exit 1
|
|
fi
|
|
|
|
# Request a firmware that doesn't exist, it should fail.
|
|
if echo -n "nope-$NAME" >"$DIR"/trigger_request 2> /dev/null; then
|
|
echo "$0: firmware shouldn't have loaded" >&2
|
|
exit 1
|
|
fi
|
|
if diff -q "$FW" /dev/test_firmware >/dev/null ; then
|
|
echo "$0: firmware was not expected to match" >&2
|
|
exit 1
|
|
else
|
|
if [ "$HAS_FW_LOADER_USER_HELPER" = "yes" ]; then
|
|
echo "$0: timeout works"
|
|
fi
|
|
fi
|
|
|
|
# This should succeed via kernel load or will fail after 1 second after
|
|
# being handed over to the user helper, which won't find the fw either.
|
|
if ! echo -n "$NAME" >"$DIR"/trigger_request ; then
|
|
echo "$0: could not trigger request" >&2
|
|
exit 1
|
|
fi
|
|
|
|
# Verify the contents are what we expect.
|
|
if ! diff -q "$FW" /dev/test_firmware >/dev/null ; then
|
|
echo "$0: firmware was not loaded" >&2
|
|
exit 1
|
|
else
|
|
echo "$0: filesystem loading works"
|
|
fi
|
|
|
|
# Try the asynchronous version too
|
|
if ! echo -n "$NAME" >"$DIR"/trigger_async_request ; then
|
|
echo "$0: could not trigger async request" >&2
|
|
exit 1
|
|
fi
|
|
|
|
# Verify the contents are what we expect.
|
|
if ! diff -q "$FW" /dev/test_firmware >/dev/null ; then
|
|
echo "$0: firmware was not loaded (async)" >&2
|
|
exit 1
|
|
else
|
|
echo "$0: async filesystem loading works"
|
|
fi
|
|
|
|
exit 0
|