linux-kernel - Re: [PATCH] crypto: sun8i-ss - Remove GFP

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Message-ID: <Y7PQbNrgs2EvkXMB@Red>
Date:   Tue, 3 Jan 2023 07:51:24 +0100
From:   Corentin Labbe <clabbe.montjoie@...il.com>
To:     Herbert Xu <herbert@...dor.apana.org.au>
Cc:     Christoph Hellwig <hch@...radead.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Ard Biesheuvel <ardb@...nel.org>,
        Will Deacon <will@...nel.org>, Marc Zyngier <maz@...nel.org>,
        Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Linux Memory Management List <linux-mm@...ck.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        LinuxKernelMailingList@...dor.apana.org.au,
        linux-kernel@...r.kernel.org,
        "David S. Miller" <davem@...emloft.net>,
        Linux Crypto Mailing List <linux-crypto@...r.kernel.org>
Subject: Re: [PATCH] crypto: sun8i-ss - Remove GFP_DMA and add DMA alignment
 padding

Le Thu, Dec 29, 2022 at 04:58:21PM +0800, Herbert Xu a écrit :
> GFP_DMA does not guarantee that the returned memory is aligned
> for DMA.  In fact for sun8i-ss it is superfluous and can be removed.
> 
> However, kmalloc may start returning DMA-unaligned memory in future
> so fix this by adding the alignment by hand.
> 
> Signed-off-by: Herbert Xu <herbert@...dor.apana.org.au>

Hello

Tested-by: Corentin Labbe <clabbe.montjoie@...il.com>
Tested-on: sun8i-a83t-bananapi-m3
Acked-by: Corentin Labbe <clabbe.montjoie@...il.com>

This means that lot of other crypto driver (sun8i-ce, amlogic, etc...) I maintain need the same fix, right ?

Regards