Re: [PATCH 2/4] kunit: drop test pointer in string_stream_fragment

From: David Gow
Date: Fri Jul 22 2022 - 03:12:41 EST


On Fri, Jul 22, 2022 at 2:02 AM 'Daniel Latypov' via KUnit Development
<kunit-dev@xxxxxxxxxxxxxxxx> wrote:
>
> We already store the `struct kunit *test` in the string_stream object
> itself, so we need don't need to store a copy of this pointer in every
> fragment in the stream.
>
> Drop it, getting string_stream_fragment down the bare minimum: a
> list_head and the `char *` with the actual fragment.
>
> Signed-off-by: Daniel Latypov <dlatypov@xxxxxxxxxx>
> ---

Yup, this is definitely redundant now. Thanks!

Reviewed-by: David Gow <davidgow@xxxxxxxxxx>

Cheers,
-- David

> lib/kunit/string-stream.c | 10 +++++-----
> lib/kunit/string-stream.h | 1 -
> 2 files changed, 5 insertions(+), 6 deletions(-)
>
> diff --git a/lib/kunit/string-stream.c b/lib/kunit/string-stream.c
> index a2496abef152..f5ae79c37400 100644
> --- a/lib/kunit/string-stream.c
> +++ b/lib/kunit/string-stream.c
> @@ -22,7 +22,6 @@ static struct string_stream_fragment *alloc_string_stream_fragment(
> if (!frag)
> return ERR_PTR(-ENOMEM);
>
> - frag->test = test;
> frag->fragment = kunit_kmalloc(test, len, gfp);
> if (!frag->fragment)
> return ERR_PTR(-ENOMEM);
> @@ -30,11 +29,12 @@ static struct string_stream_fragment *alloc_string_stream_fragment(
> return frag;
> }
>
> -static void string_stream_fragment_destroy(struct string_stream_fragment *frag)
> +static void string_stream_fragment_destroy(struct kunit *test,
> + struct string_stream_fragment *frag)
> {
> list_del(&frag->node);
> - kunit_kfree(frag->test, frag->fragment);
> - kunit_kfree(frag->test, frag);
> + kunit_kfree(test, frag->fragment);
> + kunit_kfree(test, frag);
> }
>
> int string_stream_vadd(struct string_stream *stream,
> @@ -89,7 +89,7 @@ static void string_stream_clear(struct string_stream *stream)
> frag_container_safe,
> &stream->fragments,
> node) {
> - string_stream_fragment_destroy(frag_container);
> + string_stream_fragment_destroy(stream->test, frag_container);
> }
> stream->length = 0;
> spin_unlock(&stream->lock);
> diff --git a/lib/kunit/string-stream.h b/lib/kunit/string-stream.h
> index 494dee0f24bd..b669f9a75a94 100644
> --- a/lib/kunit/string-stream.h
> +++ b/lib/kunit/string-stream.h
> @@ -14,7 +14,6 @@
> #include <linux/stdarg.h>
>
> struct string_stream_fragment {
> - struct kunit *test;
> struct list_head node;
> char *fragment;
> };
> --
> 2.37.1.359.gd136c6c3e2-goog
>
> --
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