Fix a regression in r321608.
On i386 with CPUID but without SSE2, set lfence_works to LMB_NONE
instead of looping.
Reported and tested by: Andre Albsmeier <andre@fbsd.e4m.org>
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Fix a regression in r321608. Tags None Referenced Files None Subscribers None
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