Re: [PATCH] KVM: s390: Fix potential spectre warnings

Paolo Bonzini
2019-04-17T13:13:00Z

On 17/04/19 09:49, David Hildenbrand wrote:
> return kvm->arch.adapters[array_index_nospec(id, MAX_S390_IO_ADAPTERS)];
>
> should exactly fit into a single line if I am not wrong.

git grep "\\[.*array_index_nospec" suggests that the preferred idiom is

var = array_index_nospec(var, SIZE)

which makes sense since it sanitizes var once and for all.

Paolo