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introduce guest_handle_for_field()
This helper turns a field of a GUEST_HANDLE in a GUEST_HANDLE. Signed-off-by: Jan Beulich <jbeulich@suse.com>
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Jan Beulich committed
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@@ -51,6 +51,9 @@
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(XEN_GUEST_HANDLE(type)) { _x }; \
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})
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#define guest_handle_for_field(hnd, type, fld) \
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((XEN_GUEST_HANDLE(type)) { &(hnd).p->fld })
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#define guest_handle_from_ptr(ptr, type) \
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((XEN_GUEST_HANDLE(type)) { (type *)ptr })
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#define const_guest_handle_from_ptr(ptr, type) \
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