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Make ntb(4) send bus_get_dma_tag() requests to parent buses passing real

Description

Make ntb(4) send bus_get_dma_tag() requests to parent buses passing real
bus' child pointers instead of grandchilds.

DMAR does not like requests from devices not parented directly by PCI.

MFC after: 2 weeks

Details

Committed
mavThu, Nov 14, 4:34 AM
Parents
rS354701: powerpc: Kernel fixes for ppc32 and powerpcspe w/ lld
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