Re: [PATCH v1 1/2] iio: test: Add check against NULL for buffer in tests.

From: Andriy Tryshnivskyy
Date: Sun Nov 28 2021 - 13:46:43 EST


Thank you very much!

Best regards,
Andriy

On 27.11.21 20:53, Jonathan Cameron wrote:
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On Sat, 13 Nov 2021 16:52:14 +0000
Jonathan Cameron <jic23@xxxxxxxxxx> wrote:

On Fri, 5 Nov 2021 12:16:40 +0200
Andy Shevchenko <andy.shevchenko@xxxxxxxxx> wrote:

On Fri, Nov 5, 2021 at 12:05 PM Andriy Tryshnivskyy
<andriy.tryshnivskyy@xxxxxxxxxxxxxxx> 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.
Ideally I'd agree, but sometimes it's just not worth wasting anyones time
if both parts are mechanical as here.

Given this is Lars' code I'll leave a bit longer for him to give any tags
he wishes before picking it up.

Give me a poke if I seem to have lost it in a few weeks. In theory I
shouldn't given I'm using patchwork as a backup tracker these days, but
meh - I've lost series before!
Enough time I think. Applied to the togreg branch of iio.git and pushed out
as testing for 0-day to have a quick sanity check. I'll push it out so
linux-next picks it up later in the week.

Thanks,

Jonathan

Thanks,

Jonathan

Signed-off-by: Andriy Tryshnivskyy <andriy.tryshnivskyy@xxxxxxxxxxxxxxx>
---
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