linux-kernel - Re: linux-next: manual merge of the rcu tree with Linus' tree

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Date:   Tue, 18 Oct 2022 11:38:13 -0700
From:   "Paul E. McKenney" <paulmck@...nel.org>
To:     Stephen Rothwell <sfr@...b.auug.org.au>
Cc:     Jianmin Lv <lvjianmin@...ngson.cn>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>
Subject: Re: linux-next: manual merge of the rcu tree with Linus' tree

On Tue, Oct 18, 2022 at 09:41:52AM +1100, Stephen Rothwell wrote:
> Hi all,
> 
> Today's linux-next merge of the rcu tree got a conflict in:
> 
>   arch/loongarch/Kconfig
> 
> between commit:
> 
>   c78c43fe7d42 ("LoongArch: Use acpi_arch_dma_setup() and remove ARCH_HAS_PHYS_TO_DMA")
> 
> from Linus' tree and commit:
> 
>   839fc1e464eb ("arch/loongarch: Add ARCH_HAS_NMI_SAFE_THIS_CPU_OPS Kconfig option")
> 
> from the rcu 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.

Thank you, Stephen!

For whatever it is worth, this will go away once I test my rebase to v6.1.

							Thanx, Paul

> -- 
> Cheers,
> Stephen Rothwell
> 
> diff --cc arch/loongarch/Kconfig
> index 903096bd87f8,c8864768dc4d..000000000000
> --- a/arch/loongarch/Kconfig
> +++ b/arch/loongarch/Kconfig
> @@@ -10,6 -10,8 +10,7 @@@ config LOONGARC
>   	select ARCH_ENABLE_MEMORY_HOTPLUG
>   	select ARCH_ENABLE_MEMORY_HOTREMOVE
>   	select ARCH_HAS_ACPI_TABLE_UPGRADE	if ACPI
> + 	select ARCH_HAS_NMI_SAFE_THIS_CPU_OPS
>  -	select ARCH_HAS_PHYS_TO_DMA
>   	select ARCH_HAS_PTE_SPECIAL
>   	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
>   	select ARCH_INLINE_READ_LOCK if !PREEMPTION