Re: [PATCH v1 1/1] KVM: s390: Don't cast parameter in bit operations
From: Andy Shevchenko
Date: Wed Mar 02 2022 - 10:45:50 EST
On Thu, Feb 24, 2022 at 01:10:34PM +0100, Michael Mueller wrote:
> On 24.02.22 12:36, Claudio Imbrenda wrote:
...
> we do that at several places
Thanks for pointing out.
> arch/s390/kernel/processor.c: for_each_set_bit_inv(bit, (long
> *)&stfle_fac_list, MAX_FACILITY_BIT)
This one requires a separate change, not related to this patch.
> arch/s390/kvm/interrupt.c: set_bit_inv(IPM_BIT_OFFSET + gisc, (unsigned long
> *) gisa);
This is done in the patch. Not sure how it appears in your list.
> arch/s390/kvm/kvm-s390.c: set_bit_inv(vcpu->vcpu_id, (unsigned long *)
> sca->mcn);
> arch/s390/kvm/kvm-s390.c: set_bit_inv(vcpu->vcpu_id, (unsigned long *)
> &sca->mcn);
These two should be fixed in a separate change.
Also this kind of stuff:
bitmap_copy(kvm->arch.cpu_feat, (unsigned long *) data.feat,
KVM_S390_VM_CPU_FEAT_NR_BITS);
might require a new API like
bitmap_from_u64_array()
bitmap_to_u64_array()
Yury?
--
With Best Regards,
Andy Shevchenko