From 4352b8aee98005853aa63f57d6377282de17a33f Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 23 Aug 2026 13:28:57 -0700 Subject: Merge tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux Pull I3C updates from Alexandre Belloni: "A new driver this cycle, for the AMD AXI I3C controller. There are also new features such as IBI wakeup support, SETAASA device discovery and ACPI support for the the DAA methods, meaning we can now communicate with the SPD devices on DDR5 modules. New driver: - AMD AXI I3C master controller Subsystem: - I3C Common Command Code (CCC) handling improvements, especially around GET CCCs - SETAASA device discovery support - ACPI support for all existing DAA methods like SETDASA, SETNEWDA as well as I2C devices on I3C bus - IBI-based wakeup support Drivers: - dw: SETAASA support - mipi-i3c-hci: advertise IBI wakeup capability, AMD_PT I3C controller support, PIO queue management support for HCI v1.2 - renesas: improve suspend to RAM support, add runtime PM support" * tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: (70 commits) i3c: dw: reduce do_daa time if there's no client i3c: mipi-i3c-hci: Add support for AMD_PT I3C controller i3c: mipi-i3c-hci: Add PIO queue management support for HCI v1.2 i3c: mipi-i3c-hci: Fix missing STAT_IBI_STATUS_THLD in PIO mode i3c: dw: rename "pclk" to "apb" to match dt-binding i3c: dw: make struct dw_i3c_cmd smaller i3c: dw: use COMMAND_PORT_TRANSFER_ARG instead of hardcoding i3c: renesas: Don't register devices when ENTDAA times out i3c: master: dw-i3c-master: fix OD timing for first broadcast i3c: mipi-i3c-hci: Advertise IBI wakeup capability i3c: mipi-i3c-hci: Factor out i3c_hci_sysdev() i3c: mipi-i3c-hci-pci: Propagate I3C wakeup requirements to PCI i3c: master: Reject IBI requests from non-IBI-capable devices i3c: master: Add helper to query bus wakeup requirements i3c: master: Report wakeup events for IBIs i3c: master: Support IBI-based wakeup capability i3c: master: Fix potential UAF in i3c_device_match() i3c: master: Fix potential UAF in i3c_device_uevent() i3c: Make dev->desc locking assumptions explicit i3c: master: Fix use-after-free of master->this ... --- scripts/kconfig/tests/conftest.py | 318 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 318 insertions(+) create mode 100644 scripts/kconfig/tests/conftest.py (limited to 'scripts/kconfig/tests/conftest.py') diff --git a/scripts/kconfig/tests/conftest.py b/scripts/kconfig/tests/conftest.py new file mode 100644 index 000000000..66f95e4ed --- /dev/null +++ b/scripts/kconfig/tests/conftest.py @@ -0,0 +1,318 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Copyright (C) 2018 Masahiro Yamada +# + +""" +Kconfig unit testing framework. + +This provides fixture functions commonly used from test files. +""" + +import os +import pytest +import shutil +import subprocess +import tempfile + +CONF_PATH = os.path.abspath(os.path.join('scripts', 'kconfig', 'conf')) + + +class Conf: + """Kconfig runner and result checker. + + This class provides methods to run text-based interface of Kconfig + (scripts/kconfig/conf) and retrieve the resulted configuration, + stdout, and stderr. It also provides methods to compare those + results with expectations. + """ + + def __init__(self, request): + """Create a new Conf instance. + + request: object to introspect the requesting test module + """ + # the directory of the test being run + self._test_dir = os.path.dirname(str(request.fspath)) + + # runners + def _run_conf(self, mode, dot_config=None, out_file='.config', + interactive=False, in_keys=None, extra_env={}, + silent=False): + """Run text-based Kconfig executable and save the result. + + mode: input mode option (--oldaskconfig, --defconfig= etc.) + dot_config: .config file to use for configuration base + out_file: file name to contain the output config data + interactive: flag to specify the interactive mode + in_keys: key inputs for interactive modes + extra_env: additional environments + returncode: exit status of the Kconfig executable + """ + command = [CONF_PATH] + if silent: + command.append('-s') + command += [mode, 'Kconfig'] + + # Override 'srctree' environment to make the test as the top directory + extra_env['srctree'] = self._test_dir + + # Clear KCONFIG_DEFCONFIG_LIST to keep unit tests from being affected + # by the user's environment. + extra_env['KCONFIG_DEFCONFIG_LIST'] = '' + + # Run Kconfig in a temporary directory. + # This directory is automatically removed when done. + with tempfile.TemporaryDirectory() as temp_dir: + + # if .config is given, copy it to the working directory + if dot_config: + shutil.copyfile(os.path.join(self._test_dir, dot_config), + os.path.join(temp_dir, '.config')) + + ps = subprocess.Popen(command, + stdin=subprocess.PIPE, + stdout=subprocess.PIPE, + stderr=subprocess.PIPE, + cwd=temp_dir, + env=dict(os.environ, **extra_env)) + + # If input key sequence is given, feed it to stdin. + if in_keys: + ps.stdin.write(in_keys.encode('utf-8')) + + while ps.poll() is None: + # For interactive modes such as oldaskconfig, oldconfig, + # send 'Enter' key until the program finishes. + if interactive: + try: + ps.stdin.write(b'\n') + ps.stdin.flush() + except (BrokenPipeError, OSError): + # Process has exited, stop sending input + break + + # Close stdin gracefully + try: + ps.stdin.close() + except (BrokenPipeError, OSError): + # Ignore broken pipe on close + pass + + # Wait for process to complete + ps.wait() + + self.retcode = ps.returncode + self.stdout = ps.stdout.read().decode() + self.stderr = ps.stderr.read().decode() + + # Retrieve the resulted config data only when .config is supposed + # to exist. If the command fails, the .config does not exist. + # 'listnewconfig' does not produce .config in the first place. + if self.retcode == 0 and out_file: + with open(os.path.join(temp_dir, out_file)) as f: + self.config = f.read() + else: + self.config = None + + # Logging: + # Pytest captures the following information by default. In failure + # of tests, the captured log will be displayed. This will be useful to + # figure out what has happened. + + print("[command]\n{}\n".format(' '.join(command))) + + print("[retcode]\n{}\n".format(self.retcode)) + + print("[stdout]") + print(self.stdout) + + print("[stderr]") + print(self.stderr) + + if self.config is not None: + print("[output for '{}']".format(out_file)) + print(self.config) + + return self.retcode + + def oldaskconfig(self, dot_config=None, in_keys=None): + """Run oldaskconfig. + + dot_config: .config file to use for configuration base (optional) + in_key: key inputs (optional) + returncode: exit status of the Kconfig executable + """ + return self._run_conf('--oldaskconfig', dot_config=dot_config, + interactive=True, in_keys=in_keys) + + def oldconfig(self, dot_config=None, in_keys=None): + """Run oldconfig. + + dot_config: .config file to use for configuration base (optional) + in_key: key inputs (optional) + returncode: exit status of the Kconfig executable + """ + return self._run_conf('--oldconfig', dot_config=dot_config, + interactive=True, in_keys=in_keys) + + def olddefconfig(self, dot_config=None): + """Run olddefconfig. + + dot_config: .config file to use for configuration base (optional) + returncode: exit status of the Kconfig executable + """ + return self._run_conf('--olddefconfig', dot_config=dot_config) + + def defconfig(self, defconfig): + """Run defconfig. + + defconfig: defconfig file for input + returncode: exit status of the Kconfig executable + """ + defconfig_path = os.path.join(self._test_dir, defconfig) + return self._run_conf('--defconfig={}'.format(defconfig_path)) + + def _allconfig(self, mode, all_config, extra_env={}): + if all_config: + all_config_path = os.path.join(self._test_dir, all_config) + extra_env['KCONFIG_ALLCONFIG'] = all_config_path + + return self._run_conf('--{}config'.format(mode), extra_env=extra_env) + + def allyesconfig(self, all_config=None): + """Run allyesconfig. + + all_config: fragment config file for KCONFIG_ALLCONFIG (optional) + returncode: exit status of the Kconfig executable + """ + return self._allconfig('allyes', all_config) + + def allmodconfig(self, all_config=None): + """Run allmodconfig. + + all_config: fragment config file for KCONFIG_ALLCONFIG (optional) + returncode: exit status of the Kconfig executable + """ + return self._allconfig('allmod', all_config) + + def allnoconfig(self, all_config=None): + """Run allnoconfig. + + all_config: fragment config file for KCONFIG_ALLCONFIG (optional) + returncode: exit status of the Kconfig executable + """ + return self._allconfig('allno', all_config) + + def alldefconfig(self, all_config=None): + """Run alldefconfig. + + all_config: fragment config file for KCONFIG_ALLCONFIG (optional) + returncode: exit status of the Kconfig executable + """ + return self._allconfig('alldef', all_config) + + def randconfig(self, all_config=None, seed=None): + """Run randconfig. + + all_config: fragment config file for KCONFIG_ALLCONFIG (optional) + seed: the seed for randconfig (optional) + returncode: exit status of the Kconfig executable + """ + if seed is not None: + extra_env = {'KCONFIG_SEED': hex(seed)} + else: + extra_env = {} + + return self._allconfig('rand', all_config, extra_env=extra_env) + + def savedefconfig(self, dot_config): + """Run savedefconfig. + + dot_config: .config file for input + returncode: exit status of the Kconfig executable + """ + return self._run_conf('--savedefconfig', out_file='defconfig') + + def listnewconfig(self, dot_config=None): + """Run listnewconfig. + + dot_config: .config file to use for configuration base (optional) + returncode: exit status of the Kconfig executable + """ + return self._run_conf('--listnewconfig', dot_config=dot_config, + out_file=None) + + # checkers + def _read_and_compare(self, compare, expected): + """Compare the result with expectation. + + compare: function to compare the result with expectation + expected: file that contains the expected data + """ + with open(os.path.join(self._test_dir, expected)) as f: + expected_data = f.read() + return compare(self, expected_data) + + def _contains(self, attr, expected): + return self._read_and_compare( + lambda s, e: getattr(s, attr).find(e) >= 0, + expected) + + def _matches(self, attr, expected): + return self._read_and_compare(lambda s, e: getattr(s, attr) == e, + expected) + + def config_contains(self, expected): + """Check if resulted configuration contains expected data. + + expected: file that contains the expected data + returncode: True if result contains the expected data, False otherwise + """ + return self._contains('config', expected) + + def config_matches(self, expected): + """Check if resulted configuration exactly matches expected data. + + expected: file that contains the expected data + returncode: True if result matches the expected data, False otherwise + """ + return self._matches('config', expected) + + def stdout_contains(self, expected): + """Check if resulted stdout contains expected data. + + expected: file that contains the expected data + returncode: True if result contains the expected data, False otherwise + """ + return self._contains('stdout', expected) + + def stdout_matches(self, expected): + """Check if resulted stdout exactly matches expected data. + + expected: file that contains the expected data + returncode: True if result matches the expected data, False otherwise + """ + return self._matches('stdout', expected) + + def stderr_contains(self, expected): + """Check if resulted stderr contains expected data. + + expected: file that contains the expected data + returncode: True if result contains the expected data, False otherwise + """ + return self._contains('stderr', expected) + + def stderr_matches(self, expected): + """Check if resulted stderr exactly matches expected data. + + expected: file that contains the expected data + returncode: True if result matches the expected data, False otherwise + """ + return self._matches('stderr', expected) + + +@pytest.fixture(scope="module") +def conf(request): + """Create a Conf instance and provide it to test functions.""" + return Conf(request) -- cgit v1.3.1