linux-kernel - Re: [PATCH 3/4] crypto: arm64: generate *.S by Perl at build time instead of shipping them

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Date:   Mon, 26 Apr 2021 09:58:36 +0100
From:   Will Deacon <will@...nel.org>
To:     Masahiro Yamada <masahiroy@...nel.org>
Cc:     Herbert Xu <herbert@...dor.apana.org.au>,
        "David S . Miller" <davem@...emloft.net>,
        linux-crypto@...r.kernel.org,
        Catalin Marinas <catalin.marinas@....com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        ardb@...nel.org
Subject: Re: [PATCH 3/4] crypto: arm64: generate *.S by Perl at build time
 instead of shipping them

[+Ard]

On Mon, Apr 26, 2021 at 02:57:33AM +0900, Masahiro Yamada wrote:
> Generate *.S by Perl like arch/{mips,x86}/crypto/Makefile.
> 
> Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>
> ---
> 
>  arch/arm64/crypto/Makefile                |    9 +-
>  arch/arm64/crypto/poly1305-core.S_shipped |  835 ---------
>  arch/arm64/crypto/sha256-core.S_shipped   | 2069 ---------------------
>  arch/arm64/crypto/sha512-core.S_shipped   | 1093 -----------
>  4 files changed, 3 insertions(+), 4003 deletions(-)
>  delete mode 100644 arch/arm64/crypto/poly1305-core.S_shipped
>  delete mode 100644 arch/arm64/crypto/sha256-core.S_shipped
>  delete mode 100644 arch/arm64/crypto/sha512-core.S_shipped

What's the advantage of removing the _shipped files? We included them
originally so that we didn't require perl for the kernel build -- is that no
longer an issue?

I guess I'm just missing the justification for the change.

Cheers,

Will