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The flag xen_have_vcpu_info_placement was needed to support Xen hypervisors older than version 3.4, which didn't support the VCPUOP_register_vcpu_info hypercall. Today the Linux kernel requires at least Xen 4.0 to be able to run, so xen_have_vcpu_info_placement can be dropped (in theory the flag was used to ensure a working kernel even in case of the VCPUOP_register_vcpu_info hypercall failing for other reasons than the hypercall not being supported, but the only cases covered by the flag would be parameter errors, which ought not to be made anyway). This allows to let some functions return void now, as they can never fail. Signed-off-by: Juergen Gross <jgross@suse.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Link: https://lore.kernel.org/r/20211028072748.29862-2-jgross@suse.com Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> |
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