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Date:   Wed, 5 Aug 2020 10:18:05 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Christian Brauner <christian@...uner.io>,
        Guo Ren <ren_guo@...ky.com>
Cc:     Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Tobias Klauser <tklauser@...tanz.ch>
Subject: Re: linux-next: manual merge of the pidfd tree with the csky tree

Hi all,

On Mon, 6 Jul 2020 15:06:13 +1000 Stephen Rothwell <sfr@...b.auug.org.au> wrote:
>
> Today's linux-next merge of the pidfd tree got a conflict in:
> 
>   arch/csky/kernel/process.c
> 
> between commit:
> 
>   29adb883aa77 ("csky: remove unusued thread_saved_pc and *_segments functions/macros")
> 
> from the csky tree and commit:
> 
>   714acdbd1c94 ("arch: rename copy_thread_tls() back to copy_thread()")
> 
> from the pidfd 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.
> 
> diff --cc arch/csky/kernel/process.c
> index 3da63cf0bfde,28cfeaaf902a..000000000000
> --- a/arch/csky/kernel/process.c
> +++ b/arch/csky/kernel/process.c
> @@@ -30,7 -30,17 +30,7 @@@ asmlinkage void ret_from_kernel_thread(
>    */
>   void flush_thread(void){}
>   
> - int copy_thread_tls(unsigned long clone_flags,
>  -/*
>  - * Return saved PC from a blocked thread
>  - */
>  -unsigned long thread_saved_pc(struct task_struct *tsk)
>  -{
>  -	struct switch_stack *sw = (struct switch_stack *)tsk->thread.sp;
>  -
>  -	return sw->r15;
>  -}
>  -
> + int copy_thread(unsigned long clone_flags,
>   		unsigned long usp,
>   		unsigned long kthread_arg,
>   		struct task_struct *p,

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

-- 
Cheers,
Stephen Rothwell

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