linux-kernel - Re: linux-next: manual merge of the dma-mapping tree with the kbuild tree

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Message-ID: <20180815092753.5a14f14f@canb.auug.org.au>
Date:   Wed, 15 Aug 2018 09:27:53 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Masahiro Yamada <yamada.masahiro@...ionext.com>
Cc:     Christoph Hellwig <hch@....de>,
        Linux-Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: linux-next: manual merge of the dma-mapping tree with the
 kbuild tree

Hi all,

On Fri, 3 Aug 2018 08:08:56 +1000 Stephen Rothwell <sfr@...b.auug.org.au> wrote:
>
> Today's linux-next merge of the dma-mapping tree got a conflict in:
> 
>   arch/nios2/Kconfig
> 
> between commit:
> 
>   17c46a6aff5c ("kconfig: remove duplicate SWAP symbol defintions")
> 
> from the kbuild tree and commit:
> 
>   25622e045a6a ("nios2: use generic dma_noncoherent_ops")
> 
> from the dma-mapping tree.
> 
> I fixed it up (see below) and can carry the fix as necessary. This
> is now fixed as far as linux-next is concerned, but any non trivial
> conflicts should be mentioned to your upstream maintainer when your tree
> is submitted for merging.  You may also want to consider cooperating
> with the maintainer of the conflicting tree to minimise any particularly
> complex conflicts.
> 
> -- 
> Cheers,
> Stephen Rothwell
> 
> diff --cc arch/nios2/Kconfig
> index cbe1844b0657,92035042cf62..000000000000
> --- a/arch/nios2/Kconfig
> +++ b/arch/nios2/Kconfig
> @@@ -1,7 -1,9 +1,10 @@@
>   # SPDX-License-Identifier: GPL-2.0
>   config NIOS2
>   	def_bool y
>  +	select ARCH_NO_SWAP
> + 	select ARCH_HAS_SYNC_DMA_FOR_CPU
> + 	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
> + 	select DMA_NONCOHERENT_OPS
>   	select TIMER_OF
>   	select GENERIC_ATOMIC64
>   	select GENERIC_CLOCKEVENTS

This is now a conflict between Linus' tree and the kbuild tree.

-- 
Cheers,
Stephen Rothwell

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