Re: linux-next: manual merge of the kvm tree with the arm64 tree

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On Mon, Jun 04, 2018 at 04:57:54PM +1000, Stephen Rothwell wrote:
> Hi all,
> 
> Today's linux-next merge of the kvm tree got a conflict in:
> 
>   arch/arm64/include/asm/processor.h
> 
> between commit:
> 
>   94b07c1f8c39 ("arm64: signal: Report signal frame size to userspace via auxv")
> 
> from the arm64 tree and commit:
> 
>   9a6e594869b2 ("arm64/sve: Move sve_pffr() to fpsimd.h and make inline")
> 
> from the kvm 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.

The resolution looks fine here, thanks.

---Dave

> 
> -- 
> Cheers,
> Stephen Rothwell
> 
> diff --cc arch/arm64/include/asm/processor.h
> index 65ab83e8926e,c99e657fdd57..000000000000
> --- a/arch/arm64/include/asm/processor.h
> +++ b/arch/arm64/include/asm/processor.h
> @@@ -246,9 -246,17 +248,20 @@@ void cpu_enable_pan(const struct arm64_
>   void cpu_enable_cache_maint_trap(const struct arm64_cpu_capabilities *__unused);
>   void cpu_clear_disr(const struct arm64_cpu_capabilities *__unused);
>   
>  +extern unsigned long __ro_after_init signal_minsigstksz; /* sigframe size */
>  +extern void __init minsigstksz_setup(void);
>  +
> + /*
> +  * Not at the top of the file due to a direct #include cycle between
> +  * <asm/fpsimd.h> and <asm/processor.h>.  Deferring this #include
> +  * ensures that contents of processor.h are visible to fpsimd.h even if
> +  * processor.h is included first.
> +  *
> +  * These prctl helpers are the only things in this file that require
> +  * fpsimd.h.  The core code expects them to be in this header.
> +  */
> + #include <asm/fpsimd.h>
> + 
>   /* Userspace interface for PR_SVE_{SET,GET}_VL prctl()s: */
>   #define SVE_SET_VL(arg)	sve_set_current_vl(arg)
>   #define SVE_GET_VL()	sve_get_current_vl()






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