linux-kernel - Re: [PATCH] dma-mapping, powerpc: Move arch_dma_set

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Message-Id: <156fec7b-1a9f-4660-b1c3-65a8b9cd1405@app.fastmail.com>
Date:   Fri, 18 Aug 2023 14:38:23 +0200
From:   "Arnd Bergmann" <arnd@...db.de>
To:     "Christophe Leroy" <christophe.leroy@...roup.eu>,
        "Michael Ellerman" <mpe@...erman.id.au>,
        "Nicholas Piggin" <npiggin@...il.com>,
        "Christoph Hellwig" <hch@....de>,
        "Marek Szyprowski" <m.szyprowski@...sung.com>,
        "Robin Murphy" <robin.murphy@....com>
Cc:     linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        iommu@...ts.linux.dev
Subject: Re: [PATCH] dma-mapping, powerpc: Move arch_dma_set_mask() prototype into
 dma-map-ops.h

On Fri, Aug 18, 2023, at 09:55, Christophe Leroy wrote:
> To fix the following error,
>
>   CC      arch/powerpc/kernel/dma-mask.o
> arch/powerpc/kernel/dma-mask.c:7:6: error: no previous prototype for 
> 'arch_dma_set_mask' [-Werror=missing-prototypes]
>     7 | void arch_dma_set_mask(struct device *dev, u64 dma_mask)
>       |      ^~~~~~~~~~~~~~~~~
>
> Move arch_dma_set_mask() definition into dma-map-ops.h and
> include it in arch/powerpc/kernel/dma-mask.c
>
> Signed-off-by: Christophe Leroy <christophe.leroy@...roup.eu>
> Cc: Arnd Bergmann <arnd@...db.de>
> ---

I sent the same patch, and this is already in linux-next as
3d6f126b15d9 ("dma-mapping: move arch_dma_set_mask() declaration
to header")

      Arnd