Re: [PATCH v2 06/12] KVM: s390: exploit GISA and AIV for emulated interrupts

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On 01/25/2018 05:47 PM, David Hildenbrand wrote:
> On 25.01.2018 17:32, Christian Borntraeger wrote:
>>
>>
>> On 01/25/2018 03:20 PM, David Hildenbrand wrote:
>> [...]
>>>> @@ -918,18 +919,38 @@ static int __must_check __deliver_virtio(struct kvm_vcpu *vcpu)
>>>>  	return rc ? -EFAULT : 0;
>>>>  }
>>>>  
>>>> +static int __do_deliver_io(struct kvm_vcpu *vcpu, struct kvm_s390_io_info *io)
>>>> +{
>>>> +	int rc;
>>>> +
>>>> +	rc  = put_guest_lc(vcpu, io->subchannel_id, (u16 *)__LC_SUBCHANNEL_ID);
>>>> +	rc |= put_guest_lc(vcpu, io->subchannel_nr, (u16 *)__LC_SUBCHANNEL_NR);
>>>> +	rc |= put_guest_lc(vcpu, io->io_int_parm, (u32 *)__LC_IO_INT_PARM);
>>>> +	rc |= put_guest_lc(vcpu, io->io_int_word, (u32 *)__LC_IO_INT_WORD);
>>>> +	rc |= write_guest_lc(vcpu, __LC_IO_OLD_PSW,
>>>> +			     &vcpu->arch.sie_block->gpsw,
>>>> +			     sizeof(psw_t));
>>>> +	rc |= read_guest_lc(vcpu, __LC_IO_NEW_PSW,
>>>> +			    &vcpu->arch.sie_block->gpsw,
>>>> +			    sizeof(psw_t));
>>>
>>> These should now it into less lines.
>>
>> The last two lines are way beyond 80. 
>>
> 
> Huh? At least in my world, I can reduce 3 to 2 lines (for both).

Yes, but if I have to break the line, then I prefer to have one parameter per line. (all or
nothing)

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