[U-Boot] [PATCH] Add xxhash hashing support

[Tom Rini <trini@konsulko.com>]

On Mon, Mar 05, 2018 at 04:55:15PM +0300, dunaev at tecon.ru wrote:

> From: Dmitry Dunaev <dunaev@tecon.ru>

Please add some comments about why we're adding this support and where
it's used.

[snip]
>  common/image-fit.c      |   7 ++
>  include/image.h         |  12 +++
>  include/u-boot/xxhash.h | 143 ++++++++++++++++++++++++++
>  lib/Kconfig             |   8 ++
>  lib/Makefile            |   1 +
>  lib/xxhash.c            | 265 ++++++++++++++++++++++++++++++++++++++++++++++++
>  tools/Makefile          |   2 +
>  7 files changed, 438 insertions(+)

Please enable this for sandbox, where it should build cleanly and
without warnings.  If you can add a test for it under test/py/tests/
that would be even better.

> diff --git a/include/u-boot/xxhash.h b/include/u-boot/xxhash.h
> new file mode 100644
> index 0000000..ecbeb98
> --- /dev/null
> +++ b/include/u-boot/xxhash.h
> @@ -0,0 +1,143 @@
> +/*
> + * xxHash - Extremely Fast Hash algorithm
> + * Copyright (C) 2012-2016, Yann Collet.
> + *
> + * BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
[snip]
> diff --git a/lib/xxhash.c b/lib/xxhash.c
> new file mode 100644
> index 0000000..c9fe476
> --- /dev/null
> +++ b/lib/xxhash.c
> @@ -0,0 +1,265 @@
> +/*
> + * xxHash - Extremely Fast Hash algorithm
> + * Copyright (C) 2012-2016, Yann Collet.
> + *
> + * BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)

SPDX tag only please.

Thanks!

-- 
Tom
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