Re: linux-next: manual merge of the akpm-current tree with the powerpc tree

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Excerpts from Stephen Rothwell's message of June 18, 2021 7:44 pm:
> Hi all,
> 
> Today's linux-next merge of the akpm-current tree got a conflict in:
> 
>   arch/powerpc/kernel/smp.c
> 
> between commit:
> 
>   86f46f343272 ("powerpc/32s: Initialise KUAP and KUEP in C")
> 
> from the powerpc tree and commit:
> 
>   103e676c91d0 ("lazy tlb: introduce lazy mm refcount helper functions")
> 
> from the akpm-current 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.

This is the correct merge.

Thanks,
Nick

> 
> -- 
> Cheers,
> Stephen Rothwell
> 
> diff --cc arch/powerpc/kernel/smp.c
> index b83a59ce9beb,b289f1d213f8..000000000000
> --- a/arch/powerpc/kernel/smp.c
> +++ b/arch/powerpc/kernel/smp.c
> @@@ -1541,11 -1541,7 +1541,11 @@@ void start_secondary(void *unused
>   {
>   	unsigned int cpu = raw_smp_processor_id();
>   
>  +	/* PPC64 calls setup_kup() in early_setup_secondary() */
>  +	if (IS_ENABLED(CONFIG_PPC32))
>  +		setup_kup();
>  +
> - 	mmgrab(&init_mm);
> + 	mmgrab_lazy_tlb(&init_mm);
>   	current->active_mm = &init_mm;
>   
>   	smp_store_cpu_info(cpu);
> 




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