linux-kernel - Re: [PATCH v2 4/5] lib/Kconfig.debug: properly split hash test kernel entries

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Date:   Sat, 2 Oct 2021 15:22:02 +0800
From:   David Gow <davidgow@...gle.com>
To:     Isabella Basso <isabellabdoamaral@....br>
Cc:     Geert Uytterhoeven <geert@...ux-m68k.org>, ferreiraenzoa@...il.com,
        augusto.duraes33@...il.com,
        Brendan Higgins <brendanhiggins@...gle.com>,
        Daniel Latypov <dlatypov@...gle.com>,
        "open list:KERNEL SELFTEST FRAMEWORK" 
        <linux-kselftest@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        KUnit Development <kunit-dev@...glegroups.com>,
        ~lkcamp/patches@...ts.sr.ht, rodrigosiqueiramelo@...il.com
Subject: Re: [PATCH v2 4/5] lib/Kconfig.debug: properly split hash test kernel entries

On Mon, Sep 27, 2021 at 6:33 AM Isabella Basso <isabellabdoamaral@....br> wrote:
>
> Split TEST_HASH so that each entry only has one file.
>
> Note that there's no stringhash test file, but actually
> <linux/stringhash.h> tests are performed in lib/test_hash.c.
>
> Tested-by: David Gow <davidgow@...gle.com>
> Signed-off-by: Isabella Basso <isabellabdoamaral@....br>
> ---

Looks good to me.

Reviewed-by: David Gow <davidgow@...gle.com>

Cheers,
-- David

>  lib/Kconfig.debug | 14 +++++++++++---
>  lib/Makefile      |  3 ++-
>  2 files changed, 13 insertions(+), 4 deletions(-)
>
> diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
> index 2a9b6dcdac4f..eb6c4daf5fcb 100644
> --- a/lib/Kconfig.debug
> +++ b/lib/Kconfig.debug
> @@ -2207,9 +2207,17 @@ config TEST_RHASHTABLE
>  config TEST_HASH
>         tristate "Perform selftest on hash functions"
>         help
> -         Enable this option to test the kernel's integer (<linux/hash.h>),
> -         string (<linux/stringhash.h>), and siphash (<linux/siphash.h>)
> -         hash functions on boot (or module load).
> +         Enable this option to test the kernel's integer (<linux/hash.h>), and
> +         string (<linux/stringhash.h>) hash functions on boot (or module load).
> +
> +         This is intended to help people writing architecture-specific
> +         optimized versions.  If unsure, say N.
> +
> +config TEST_SIPHASH
> +       tristate "Perform selftest on siphash functions"
> +       help
> +         Enable this option to test the kernel's siphash (<linux/siphash.h>) hash
> +         functions on boot (or module load).
>
>           This is intended to help people writing architecture-specific
>           optimized versions.  If unsure, say N.
> diff --git a/lib/Makefile b/lib/Makefile
> index 5efd1b435a37..c2e81d0eb31c 100644
> --- a/lib/Makefile
> +++ b/lib/Makefile
> @@ -61,7 +61,8 @@ obj-$(CONFIG_TEST_FIRMWARE) += test_firmware.o
>  obj-$(CONFIG_TEST_BITOPS) += test_bitops.o
>  CFLAGS_test_bitops.o += -Werror
>  obj-$(CONFIG_TEST_SYSCTL) += test_sysctl.o
> -obj-$(CONFIG_TEST_HASH) += test_hash.o test_siphash.o
> +obj-$(CONFIG_TEST_SIPHASH) += test_siphash.o
> +obj-$(CONFIG_TEST_HASH) += test_hash.o
>  obj-$(CONFIG_TEST_IDA) += test_ida.o
>  obj-$(CONFIG_KASAN_KUNIT_TEST) += test_kasan.o
>  CFLAGS_test_kasan.o += -fno-builtin
> --
> 2.33.0
>