Messages in this thread | | | From | Guenter Roeck <> | Date | Wed, 8 Jun 2022 09:28:49 -0700 | Subject | Re: [PATCH v3 19/23] platform/chrome: cros_ec_proto: add Kunit tests for getting cmd mask |
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On Wed, Jun 8, 2022 at 4:08 AM Tzung-Bi Shih <tzungbi@kernel.org> wrote: > > cros_ec_get_host_command_version_mask() expects to receive > sizeof(struct ec_response_get_cmd_versions) from send_command(). > The payload is valid only if the return value is positive. > > Add Kunit tests for returning 0 from send_command() in > cros_ec_get_host_command_version_mask(). > > Note that because the 2 cros_ec_get_host_command_version_mask() use the > same `ver_mask`. cros_ec_proto_test_query_all_no_host_sleep_return0() > polluates the `ver_mask` and returns 0 on the second send_command() to > make sure the second cros_ec_get_host_command_version_mask() doesn't > take the garbage from the previous call. > > Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
> --- > No v2. New and separated from the original series. > > drivers/platform/chrome/cros_ec_proto_test.c | 197 +++++++++++++++++++ > 1 file changed, 197 insertions(+) > > diff --git a/drivers/platform/chrome/cros_ec_proto_test.c b/drivers/platform/chrome/cros_ec_proto_test.c > index eb6d77b95c9f..c988ff1e2a5a 100644 > --- a/drivers/platform/chrome/cros_ec_proto_test.c > +++ b/drivers/platform/chrome/cros_ec_proto_test.c > @@ -980,6 +980,94 @@ static void cros_ec_proto_test_query_all_no_mkbp_return_error(struct kunit *test > } > } > > +static void cros_ec_proto_test_query_all_no_mkbp_return0(struct kunit *test) > +{ > + struct cros_ec_proto_test_priv *priv = test->priv; > + struct cros_ec_device *ec_dev = &priv->ec_dev; > + struct ec_xfer_mock *mock; > + int ret; > + > + /* Set some garbage bytes. */ > + ec_dev->mkbp_event_supported = 0xbf; > + > + /* For cros_ec_get_proto_info() without passthru. */ > + { > + struct ec_response_get_protocol_info *data; > + > + mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data)); > + KUNIT_ASSERT_PTR_NE(test, mock, NULL); > + > + /* > + * Although it doesn't check the value, provides valid sizes so that > + * cros_ec_query_all() allocates din and dout correctly. > + */ > + data = (struct ec_response_get_protocol_info *)mock->o_data; > + data->max_request_packet_size = 0xbe; > + data->max_response_packet_size = 0xef; > + } > + > + /* For cros_ec_get_proto_info() with passthru. */ > + { > + mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0); > + KUNIT_ASSERT_PTR_NE(test, mock, NULL); > + } > + > + /* For cros_ec_get_host_command_version_mask() for MKBP. */ > + { > + mock = cros_kunit_ec_xfer_mock_add(test, 0); > + KUNIT_ASSERT_PTR_NE(test, mock, NULL); > + } > + > + cros_ec_proto_test_query_all_pretest(test); > + ret = cros_ec_query_all(ec_dev); > + KUNIT_EXPECT_EQ(test, ret, 0); > + > + /* For cros_ec_get_proto_info() without passthru. */ > + { > + mock = cros_kunit_ec_xfer_mock_next(); > + KUNIT_EXPECT_PTR_NE(test, mock, NULL); > + > + KUNIT_EXPECT_EQ(test, mock->msg.version, 0); > + KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_PROTOCOL_INFO); > + KUNIT_EXPECT_EQ(test, mock->msg.insize, > + sizeof(struct ec_response_get_protocol_info)); > + KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0); > + } > + > + /* For cros_ec_get_proto_info() with passthru. */ > + { > + mock = cros_kunit_ec_xfer_mock_next(); > + KUNIT_EXPECT_PTR_NE(test, mock, NULL); > + > + KUNIT_EXPECT_EQ(test, mock->msg.version, 0); > + KUNIT_EXPECT_EQ(test, mock->msg.command, > + EC_CMD_PASSTHRU_OFFSET(CROS_EC_DEV_PD_INDEX) | > + EC_CMD_GET_PROTOCOL_INFO); > + KUNIT_EXPECT_EQ(test, mock->msg.insize, > + sizeof(struct ec_response_get_protocol_info)); > + KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0); > + } > + > + /* For cros_ec_get_host_command_version_mask() for MKBP. */ > + { > + struct ec_params_get_cmd_versions *data; > + > + mock = cros_kunit_ec_xfer_mock_next(); > + KUNIT_EXPECT_PTR_NE(test, mock, NULL); > + > + KUNIT_EXPECT_EQ(test, mock->msg.version, 0); > + KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_CMD_VERSIONS); > + KUNIT_EXPECT_EQ(test, mock->msg.insize, > + sizeof(struct ec_response_get_cmd_versions)); > + KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(*data)); > + > + data = (struct ec_params_get_cmd_versions *)mock->i_data; > + KUNIT_EXPECT_EQ(test, data->cmd, EC_CMD_GET_NEXT_EVENT); > + > + KUNIT_EXPECT_EQ(test, ec_dev->mkbp_event_supported, 0); > + } > +} > + > static void cros_ec_proto_test_query_all_no_host_sleep(struct kunit *test) > { > struct cros_ec_proto_test_priv *priv = test->priv; > @@ -1086,6 +1174,113 @@ static void cros_ec_proto_test_query_all_no_host_sleep(struct kunit *test) > } > } > > +static void cros_ec_proto_test_query_all_no_host_sleep_return0(struct kunit *test) > +{ > + struct cros_ec_proto_test_priv *priv = test->priv; > + struct cros_ec_device *ec_dev = &priv->ec_dev; > + struct ec_xfer_mock *mock; > + int ret; > + > + /* Set some garbage bytes. */ > + ec_dev->host_sleep_v1 = true; > + > + /* For cros_ec_get_proto_info() without passthru. */ > + { > + struct ec_response_get_protocol_info *data; > + > + mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data)); > + KUNIT_ASSERT_PTR_NE(test, mock, NULL); > + > + /* > + * Although it doesn't check the value, provides valid sizes so that > + * cros_ec_query_all() allocates din and dout correctly. > + */ > + data = (struct ec_response_get_protocol_info *)mock->o_data; > + data->max_request_packet_size = 0xbe; > + data->max_response_packet_size = 0xef; > + } > + > + /* For cros_ec_get_proto_info() with passthru. */ > + { > + mock = cros_kunit_ec_xfer_mock_addx(test, 0, EC_RES_INVALID_COMMAND, 0); > + KUNIT_ASSERT_PTR_NE(test, mock, NULL); > + } > + > + /* For cros_ec_get_host_command_version_mask() for MKBP. */ > + { > + struct ec_response_get_cmd_versions *data; > + > + mock = cros_kunit_ec_xfer_mock_add(test, sizeof(*data)); > + KUNIT_ASSERT_PTR_NE(test, mock, NULL); > + > + /* In order to pollute next cros_ec_get_host_command_version_mask(). */ > + data = (struct ec_response_get_cmd_versions *)mock->o_data; > + data->version_mask = 0xbeef; > + } > + > + /* For cros_ec_get_host_command_version_mask() for host sleep v1. */ > + { > + mock = cros_kunit_ec_xfer_mock_add(test, 0); > + KUNIT_ASSERT_PTR_NE(test, mock, NULL); > + } > + > + cros_ec_proto_test_query_all_pretest(test); > + ret = cros_ec_query_all(ec_dev); > + KUNIT_EXPECT_EQ(test, ret, 0); > + > + /* For cros_ec_get_proto_info() without passthru. */ > + { > + mock = cros_kunit_ec_xfer_mock_next(); > + KUNIT_EXPECT_PTR_NE(test, mock, NULL); > + > + KUNIT_EXPECT_EQ(test, mock->msg.version, 0); > + KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_PROTOCOL_INFO); > + KUNIT_EXPECT_EQ(test, mock->msg.insize, > + sizeof(struct ec_response_get_protocol_info)); > + KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0); > + } > + > + /* For cros_ec_get_proto_info() with passthru. */ > + { > + mock = cros_kunit_ec_xfer_mock_next(); > + KUNIT_EXPECT_PTR_NE(test, mock, NULL); > + > + KUNIT_EXPECT_EQ(test, mock->msg.version, 0); > + KUNIT_EXPECT_EQ(test, mock->msg.command, > + EC_CMD_PASSTHRU_OFFSET(CROS_EC_DEV_PD_INDEX) | > + EC_CMD_GET_PROTOCOL_INFO); > + KUNIT_EXPECT_EQ(test, mock->msg.insize, > + sizeof(struct ec_response_get_protocol_info)); > + KUNIT_EXPECT_EQ(test, mock->msg.outsize, 0); > + } > + > + /* For cros_ec_get_host_command_version_mask() for MKBP. */ > + { > + mock = cros_kunit_ec_xfer_mock_next(); > + KUNIT_EXPECT_PTR_NE(test, mock, NULL); > + > + KUNIT_EXPECT_EQ(test, mock->msg.version, 0); > + KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_CMD_VERSIONS); > + KUNIT_EXPECT_EQ(test, mock->msg.insize, > + sizeof(struct ec_response_get_cmd_versions)); > + KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(struct ec_params_get_cmd_versions)); > + } > + > + /* For cros_ec_get_host_command_version_mask() for host sleep v1. */ > + { > + mock = cros_kunit_ec_xfer_mock_next(); > + KUNIT_EXPECT_PTR_NE(test, mock, NULL); > + > + KUNIT_EXPECT_EQ(test, mock->msg.version, 0); > + KUNIT_EXPECT_EQ(test, mock->msg.command, EC_CMD_GET_CMD_VERSIONS); > + KUNIT_EXPECT_EQ(test, mock->msg.insize, > + sizeof(struct ec_response_get_cmd_versions)); > + KUNIT_EXPECT_EQ(test, mock->msg.outsize, sizeof(struct ec_params_get_cmd_versions)); > + > + KUNIT_EXPECT_FALSE(test, ec_dev->host_sleep_v1); > + } > +} > + > static void cros_ec_proto_test_query_all_default_wake_mask_return_error(struct kunit *test) > { > struct cros_ec_proto_test_priv *priv = test->priv; > @@ -1274,7 +1469,9 @@ static struct kunit_case cros_ec_proto_test_cases[] = { > KUNIT_CASE(cros_ec_proto_test_query_all_legacy_return0), > KUNIT_CASE(cros_ec_proto_test_query_all_no_mkbp), > KUNIT_CASE(cros_ec_proto_test_query_all_no_mkbp_return_error), > + KUNIT_CASE(cros_ec_proto_test_query_all_no_mkbp_return0), > KUNIT_CASE(cros_ec_proto_test_query_all_no_host_sleep), > + KUNIT_CASE(cros_ec_proto_test_query_all_no_host_sleep_return0), > KUNIT_CASE(cros_ec_proto_test_query_all_default_wake_mask_return_error), > {} > }; > -- > 2.36.1.255.ge46751e96f-goog >
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