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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