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Date: Fri, 5 Nov 2021 12:16:40 +0200
From: Andy Shevchenko <andy.shevchenko@...il.com>
To: Andriy Tryshnivskyy <andriy.tryshnivskyy@...nsynergy.com>
Cc: jbhayana@...gle.com, Jonathan Cameron <jic23@...nel.org>,
Lars-Peter Clausen <lars@...afoo.de>,
linux-iio <linux-iio@...r.kernel.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Vasyl.Vavrychuk@...nsynergy.com
Subject: Re: [PATCH v1 1/2] iio: test: Add check against NULL for buffer in tests.
On Fri, Nov 5, 2021 at 12:05 PM Andriy Tryshnivskyy
<andriy.tryshnivskyy@...nsynergy.com> wrote:
>
> Add KUNIT_ASSERT_NOT_ERR_OR_NULL(test, buf) for every test.
> Also use ARRAY_SIZE(values) where it is possible.
Strictly speaking 'also' and similar in the commit message means you
have to split. Here are two patches in one. But these are test cases
and I don't care so much about the rules. Up to maintainers.
>
> Signed-off-by: Andriy Tryshnivskyy <andriy.tryshnivskyy@...nsynergy.com>
> ---
> drivers/iio/test/iio-test-format.c | 69 ++++++++++++++++++------------
> 1 file changed, 42 insertions(+), 27 deletions(-)
>
> diff --git a/drivers/iio/test/iio-test-format.c b/drivers/iio/test/iio-test-format.c
> index f1e951eddb43..b746d00bc0ea 100644
> --- a/drivers/iio/test/iio-test-format.c
> +++ b/drivers/iio/test/iio-test-format.c
> @@ -14,10 +14,13 @@
>
> static void iio_test_iio_format_value_integer(struct kunit *test)
> {
> - char *buf = kunit_kmalloc(test, PAGE_SIZE, GFP_KERNEL);
> + char *buf;
> int val;
> int ret;
>
> + buf = kunit_kmalloc(test, PAGE_SIZE, GFP_KERNEL);
> + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, buf);
> +
> val = 42;
> ret = iio_format_value(buf, IIO_VAL_INT, 1, &val);
> IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "42\n");
> @@ -41,142 +44,154 @@ static void iio_test_iio_format_value_integer(struct kunit *test)
>
> static void iio_test_iio_format_value_fixedpoint(struct kunit *test)
> {
> - char *buf = kunit_kmalloc(test, PAGE_SIZE, GFP_KERNEL);
> int values[2];
> + char *buf;
> int ret;
>
> + buf = kunit_kmalloc(test, PAGE_SIZE, GFP_KERNEL);
> + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, buf);
> +
> /* positive >= 1 */
> values[0] = 1;
> values[1] = 10;
>
> - ret = iio_format_value(buf, IIO_VAL_INT_PLUS_MICRO, 2, values);
> + ret = iio_format_value(buf, IIO_VAL_INT_PLUS_MICRO, ARRAY_SIZE(values), values);
> IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "1.000010\n");
>
> - ret = iio_format_value(buf, IIO_VAL_INT_PLUS_MICRO_DB, 2, values);
> + ret = iio_format_value(buf, IIO_VAL_INT_PLUS_MICRO_DB, ARRAY_SIZE(values), values);
> IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "1.000010 dB\n");
>
> - ret = iio_format_value(buf, IIO_VAL_INT_PLUS_NANO, 2, values);
> + ret = iio_format_value(buf, IIO_VAL_INT_PLUS_NANO, ARRAY_SIZE(values), values);
> IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "1.000000010\n");
>
> /* positive < 1 */
> values[0] = 0;
> values[1] = 12;
>
> - ret = iio_format_value(buf, IIO_VAL_INT_PLUS_MICRO, 2, values);
> + ret = iio_format_value(buf, IIO_VAL_INT_PLUS_MICRO, ARRAY_SIZE(values), values);
> IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "0.000012\n");
>
> - ret = iio_format_value(buf, IIO_VAL_INT_PLUS_MICRO_DB, 2, values);
> + ret = iio_format_value(buf, IIO_VAL_INT_PLUS_MICRO_DB, ARRAY_SIZE(values), values);
> IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "0.000012 dB\n");
>
> - ret = iio_format_value(buf, IIO_VAL_INT_PLUS_NANO, 2, values);
> + ret = iio_format_value(buf, IIO_VAL_INT_PLUS_NANO, ARRAY_SIZE(values), values);
> IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "0.000000012\n");
>
> /* negative <= -1 */
> values[0] = -1;
> values[1] = 10;
>
> - ret = iio_format_value(buf, IIO_VAL_INT_PLUS_MICRO, 2, values);
> + ret = iio_format_value(buf, IIO_VAL_INT_PLUS_MICRO, ARRAY_SIZE(values), values);
> IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "-1.000010\n");
>
> - ret = iio_format_value(buf, IIO_VAL_INT_PLUS_MICRO_DB, 2, values);
> + ret = iio_format_value(buf, IIO_VAL_INT_PLUS_MICRO_DB, ARRAY_SIZE(values), values);
> IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "-1.000010 dB\n");
>
> - ret = iio_format_value(buf, IIO_VAL_INT_PLUS_NANO, 2, values);
> + ret = iio_format_value(buf, IIO_VAL_INT_PLUS_NANO, ARRAY_SIZE(values), values);
> IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "-1.000000010\n");
>
> /* negative > -1 */
> values[0] = 0;
> values[1] = -123;
> - ret = iio_format_value(buf, IIO_VAL_INT_PLUS_MICRO, 2, values);
> + ret = iio_format_value(buf, IIO_VAL_INT_PLUS_MICRO, ARRAY_SIZE(values), values);
> IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "-0.000123\n");
>
> - ret = iio_format_value(buf, IIO_VAL_INT_PLUS_MICRO_DB, 2, values);
> + ret = iio_format_value(buf, IIO_VAL_INT_PLUS_MICRO_DB, ARRAY_SIZE(values), values);
> IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "-0.000123 dB\n");
>
> - ret = iio_format_value(buf, IIO_VAL_INT_PLUS_NANO, 2, values);
> + ret = iio_format_value(buf, IIO_VAL_INT_PLUS_NANO, ARRAY_SIZE(values), values);
> IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "-0.000000123\n");
> }
>
> static void iio_test_iio_format_value_fractional(struct kunit *test)
> {
> - char *buf = kunit_kmalloc(test, PAGE_SIZE, GFP_KERNEL);
> int values[2];
> + char *buf;
> int ret;
>
> + buf = kunit_kmalloc(test, PAGE_SIZE, GFP_KERNEL);
> + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, buf);
> +
> /* positive < 1 */
> values[0] = 1;
> values[1] = 10;
> - ret = iio_format_value(buf, IIO_VAL_FRACTIONAL, 2, values);
> + ret = iio_format_value(buf, IIO_VAL_FRACTIONAL, ARRAY_SIZE(values), values);
> IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "0.100000000\n");
>
> /* positive >= 1 */
> values[0] = 100;
> values[1] = 3;
> - ret = iio_format_value(buf, IIO_VAL_FRACTIONAL, 2, values);
> + ret = iio_format_value(buf, IIO_VAL_FRACTIONAL, ARRAY_SIZE(values), values);
> IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "33.333333333\n");
>
> /* negative > -1 */
> values[0] = -1;
> values[1] = 1000000000;
> - ret = iio_format_value(buf, IIO_VAL_FRACTIONAL, 2, values);
> + ret = iio_format_value(buf, IIO_VAL_FRACTIONAL, ARRAY_SIZE(values), values);
> IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "-0.000000001\n");
>
> /* negative <= -1 */
> values[0] = -200;
> values[1] = 3;
> - ret = iio_format_value(buf, IIO_VAL_FRACTIONAL, 2, values);
> + ret = iio_format_value(buf, IIO_VAL_FRACTIONAL, ARRAY_SIZE(values), values);
> IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "-66.666666666\n");
>
> /* Zero */
> values[0] = 0;
> values[1] = -10;
> - ret = iio_format_value(buf, IIO_VAL_FRACTIONAL, 2, values);
> + ret = iio_format_value(buf, IIO_VAL_FRACTIONAL, ARRAY_SIZE(values), values);
> IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "0.000000000\n");
> }
>
> static void iio_test_iio_format_value_fractional_log2(struct kunit *test)
> {
> - char *buf = kunit_kmalloc(test, PAGE_SIZE, GFP_KERNEL);
> int values[2];
> + char *buf;
> int ret;
>
> + buf = kunit_kmalloc(test, PAGE_SIZE, GFP_KERNEL);
> + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, buf);
> +
> /* positive < 1 */
> values[0] = 123;
> values[1] = 10;
> - ret = iio_format_value(buf, IIO_VAL_FRACTIONAL_LOG2, 2, values);
> + ret = iio_format_value(buf, IIO_VAL_FRACTIONAL_LOG2, ARRAY_SIZE(values), values);
> IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "0.120117187\n");
>
> /* positive >= 1 */
> values[0] = 1234567;
> values[1] = 10;
> - ret = iio_format_value(buf, IIO_VAL_FRACTIONAL_LOG2, 2, values);
> + ret = iio_format_value(buf, IIO_VAL_FRACTIONAL_LOG2, ARRAY_SIZE(values), values);
> IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "1205.631835937\n");
>
> /* negative > -1 */
> values[0] = -123;
> values[1] = 10;
> - ret = iio_format_value(buf, IIO_VAL_FRACTIONAL_LOG2, 2, values);
> + ret = iio_format_value(buf, IIO_VAL_FRACTIONAL_LOG2, ARRAY_SIZE(values), values);
> IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "-0.120117187\n");
>
> /* negative <= -1 */
> values[0] = -1234567;
> values[1] = 10;
> - ret = iio_format_value(buf, IIO_VAL_FRACTIONAL_LOG2, 2, values);
> + ret = iio_format_value(buf, IIO_VAL_FRACTIONAL_LOG2, ARRAY_SIZE(values), values);
> IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "-1205.631835937\n");
>
> /* Zero */
> values[0] = 0;
> values[1] = 10;
> - ret = iio_format_value(buf, IIO_VAL_FRACTIONAL_LOG2, 2, values);
> + ret = iio_format_value(buf, IIO_VAL_FRACTIONAL_LOG2, ARRAY_SIZE(values), values);
> IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "0.000000000\n");
> }
>
> static void iio_test_iio_format_value_multiple(struct kunit *test)
> {
> - char *buf = kunit_kmalloc(test, PAGE_SIZE, GFP_KERNEL);
> int values[] = {1, -2, 3, -4, 5};
> + char *buf;
> int ret;
>
> + buf = kunit_kmalloc(test, PAGE_SIZE, GFP_KERNEL);
> + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, buf);
> +
> ret = iio_format_value(buf, IIO_VAL_INT_MULTIPLE,
> ARRAY_SIZE(values), values);
> IIO_TEST_FORMAT_EXPECT_EQ(test, buf, ret, "1 -2 3 -4 5 \n");
> --
> 2.17.1
>
--
With Best Regards,
Andy Shevchenko
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