Messages in this thread | | | From | David Laight <> | Subject | RE: [PATCH RFC 1/2] virtio: introduce packed ring defines | Date | Tue, 27 Feb 2018 09:26:27 +0000 |
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From: Tiwei Bie > Sent: 23 February 2018 11:18 ... > +struct vring_packed_desc_event { > + /* Descriptor Event Offset */ > + __virtio16 desc_event_off : 15, > + /* Descriptor Event Wrap Counter */ > + desc_event_wrap : 1; > + /* Descriptor Event Flags */ > + __virtio16 desc_event_flags : 2; > +};
This looks like you are assuming that a bit-field has a defined layout and can be used to map a 'hardware' structure. The don't, don't use them like that.
David
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