On 04/06/2018 09:33, Dave Martin wrote:
> 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.
Looks good, but it would have been even better if the ARM64 tree
provided a topic branch and the kvm/arm tree pulled it.
Thanks,
Paolo
> ---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()
>
>
