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

From: Jonathan Cameron
Date: Sat Nov 27 2021 - 13:50:08 EST

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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
> > >
> >
> >
>

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