linux-kernel - Re: [PATCH] crypto: hisilicon/qm - optimize the barrier operation

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Message-ID: <Yk/yyyENQWXRxjyK@gondor.apana.org.au>
Date:   Fri, 8 Apr 2022 16:31:07 +0800
From:   Herbert Xu <herbert@...dor.apana.org.au>
To:     Hui Tang <tanghui20@...wei.com>
Cc:     davem@...emloft.net, linux-crypto@...r.kernel.org,
        wangzhou1@...ilicon.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] crypto: hisilicon/qm - optimize the barrier operation

On Wed, Mar 16, 2022 at 07:26:03PM +0800, Hui Tang wrote:
> A 'dma_wmb' barrier is enough to guarantee previous writes
> before accessing by acc device in the outer shareable domain.
> 
> A 'smp_wmb' barrier is enough to guarantee previous writes
> before accessing by other cpus in the inner shareble domain.
> 
> Signed-off-by: Hui Tang <tanghui20@...wei.com>
> ---
>  drivers/crypto/hisilicon/qm.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)

Patch applied.  Thanks.
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt