Re: [PATCH] drm/tests: Fix incorrect argument in drm_test_mm_insert_range

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Hi Maíra,

Thanks for review.

On Friday, 15 September 2023 16:01:31 CEST Maira Canal wrote:
> Hi,
> 
> On 9/11/23 10:03, Janusz Krzysztofik wrote:
> > While drm_mm test was converted form igt selftest to kunit, unexpected
> > value of "end" argument equal "start" was introduced to one of calls to a
> > function that executes the drm_test_mm_insert_range for specific start/end
> > pair of arguments.  As a consequence, DRM_MM_BUG_ON(end <= start) is
> > triggered.  Fix it by restoring the original value.
> > 
> > Fixes: fc8d29e298cf ("drm: selftest: convert drm_mm selftest to KUnit")
> > Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@xxxxxxxxxxxxxxx>
> 
> Reviewed-by: Maíra Canal <mairacanal@xxxxxxxxxx>
> 
> Do you need me to push it to drm-misc-fixes?

Yes, please do if you can.

Thanks,
Janusz

> 
> Best Regards,
> - Maíra
> 
> > Cc: "Maíra Canal" <mairacanal@xxxxxxxxxx>
> > Cc: Arthur Grillo <arthurgrillo@xxxxxxxxxx>
> > Cc: Javier Martinez Canillas <javierm@xxxxxxxxxx>
> > Cc: Daniel Latypov <dlatypov@xxxxxxxxxx>
> > Cc: stable@xxxxxxxxxxxxxxx # v6.1+
> > ---
> >   drivers/gpu/drm/tests/drm_mm_test.c | 2 +-
> >   1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/drivers/gpu/drm/tests/drm_mm_test.c b/drivers/gpu/drm/tests/drm_mm_test.c
> > index 186b28dc70380..05d5e7af6d250 100644
> > --- a/drivers/gpu/drm/tests/drm_mm_test.c
> > +++ b/drivers/gpu/drm/tests/drm_mm_test.c
> > @@ -939,7 +939,7 @@ static void drm_test_mm_insert_range(struct kunit *test)
> >   		KUNIT_ASSERT_FALSE(test, __drm_test_mm_insert_range(test, count, size, 0, max - 1));
> >   		KUNIT_ASSERT_FALSE(test, __drm_test_mm_insert_range(test, count, size, 0, max / 2));
> >   		KUNIT_ASSERT_FALSE(test, __drm_test_mm_insert_range(test, count, size,
> > -								    max / 2, max / 2));
> > +								    max / 2, max));
> >   		KUNIT_ASSERT_FALSE(test, __drm_test_mm_insert_range(test, count, size,
> >   								    max / 4 + 1, 3 * max / 4 - 1));
> >   
> 








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