Re: [PATCH v2] virtio/s390: implement virtio-ccw revision 2 correctly

2021-02-19 Thread Cornelia Huck
I was thinking of queuing this, but maybe it is quicker to pick it into the s390 tree directly and save us the extra pull request dance? Especially as this is a stable-worthy bugfix. On Tue, 16 Feb 2021 12:06:45 +0100 Cornelia Huck wrote: > CCW_CMD_READ_STATUS was introduced with revision 2 of v

[PATCH v2] virtio/s390: implement virtio-ccw revision 2 correctly

2021-02-16 Thread Cornelia Huck
CCW_CMD_READ_STATUS was introduced with revision 2 of virtio-ccw, and drivers should only rely on it being implemented when they negotiated at least that revision with the device. However, virtio_ccw_get_status() issued READ_STATUS for any device operating at least at revision 1. If the device acc