linux-kernel - Re: crypto: aegis128: error: incompatible types when initializing type 'unsigned char' using type 'uint8x16

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Date:   Thu, 30 Jul 2020 10:11:52 -0500
From:   Justin Forbes <jmforbes@...uxtx.org>
To:     Andrea Righi <andrea.righi@...onical.com>
Cc:     Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        linux-crypto@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: crypto: aegis128: error: incompatible types when initializing
 type 'unsigned char' using type 'uint8x16_t'

On Mon, Jul 27, 2020 at 8:05 AM Andrea Righi <andrea.righi@...onical.com> wrote:
>
> I'm experiencing this build error on arm64 after updating to gcc 10:
>
> crypto/aegis128-neon-inner.c: In function 'crypto_aegis128_init_neon':
> crypto/aegis128-neon-inner.c:151:3: error: incompatible types when initializing type 'unsigned char' using type 'uint8x16_t'
>   151 |   k ^ vld1q_u8(const0),
>       |   ^
> crypto/aegis128-neon-inner.c:152:3: error: incompatible types when initializing type 'unsigned char' using type 'uint8x16_t'
>   152 |   k ^ vld1q_u8(const1),
>       |   ^
>
> Anybody knows if there's a fix for this already? Otherwise I'll take a look at it.


I hit it and have been working with Jakub on the issue.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96377

Justin