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SubjectRe: [RFC v1 3/6] kunit: test: create a single centralized executor for all tests
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Quoting Brendan Higgins (2019-12-16 14:05:52)
> diff --git a/include/kunit/test.h b/include/kunit/test.h
> index dba48304b3bd3..c070798ebb765 100644
> --- a/include/kunit/test.h
> +++ b/include/kunit/test.h
> @@ -217,11 +217,8 @@ int kunit_run_tests(struct kunit_suite *suite);
> * everything else is definitely initialized.
> */
> #define kunit_test_suite(suite) \
> - static int kunit_suite_init##suite(void) \

Oh this should have been __init before.

> - { \
> - return kunit_run_tests(&suite); \
> - } \
> - late_initcall(kunit_suite_init##suite)
> + static struct kunit_suite *__kunit_suite_##suite \
> + __used __aligned(8) __section(.kunit_test_suites) = &suite
>
> /*
> * Like kunit_alloc_resource() below, but returns the struct kunit_resource
> diff --git a/lib/kunit/executor.c b/lib/kunit/executor.c
> new file mode 100644
> index 0000000000000..978086cfd257d
> --- /dev/null
> +++ b/lib/kunit/executor.c
> @@ -0,0 +1,43 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Base unit test (KUnit) API.
> + *
> + * Copyright (C) 2019, Google LLC.
> + * Author: Brendan Higgins <brendanhiggins@google.com>
> + */
> +
> +#include <linux/init.h>
> +#include <linux/printk.h>
> +#include <kunit/test.h>
> +
> +/*
> + * These symbols point to the .kunit_test_suites section and are defined in
> + * include/asm-generic/vmlinux.lds.h, and consequently must be extern.
> + */
> +extern struct kunit_suite *__kunit_suites_start[];
> +extern struct kunit_suite *__kunit_suites_end[];
> +
> +static bool kunit_run_all_tests(void)

Should be __init?

> +{
> + struct kunit_suite **suite;

Can this be const? And the linker references above too?

> + bool has_test_failed = false;
> +
> + for (suite = __kunit_suites_start;
> + suite < __kunit_suites_end;
> + ++suite) {
> + if (kunit_run_tests(*suite))
> + has_test_failed = true;
> + }
> +
> + return !has_test_failed;
> +}
> +
> +static int kunit_executor_init(void)

Should be __init?

> +{
> + if (kunit_run_all_tests())
> + return 0;
> + else
> + return -EFAULT;

Why two functions instead of just one that is the target of the
late_initcall? Nitpick: deindent that last return and take it out of the
else.

> +}
> +
> +late_initcall(kunit_executor_init);

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