kernel_optimize_test/drivers/s390
Pierre Morel 36360658eb s390: vfio_ap: link the vfio_ap devices to the vfio_ap bus subsystem
Libudev relies on having a subsystem link for non-root devices. To
avoid libudev (and potentially other userspace tools) choking on the
matrix device let us introduce a matrix bus and with it the matrix
bus subsytem. Also make the matrix device reside within the matrix
bus.

Doing this we remove the forced link from the matrix device to the
vfio_ap driver and the device_type we do not need anymore.

Since the associated matrix driver is not the vfio_ap driver any more,
we have to change the search for the devices on the vfio_ap driver in
the function vfio_ap_verify_queue_reserved.
Fixes: 1fde573413 ("s390: vfio-ap: base implementation of VFIO AP device driver")
Cc: stable@vger.kernel.org

Reported-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Reported-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Pierre Morel <pmorel@linux.ibm.com>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Tony Krowiak <akrowiak@linux.ibm.com>
Acked-by: Halil Pasic <pasic@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2019-02-22 09:20:01 +01:00
..
block s390 updates for the 4.21 merge window 2019-01-02 18:37:01 -08:00
char s390/setup: set control program code via diag 318 2019-01-28 15:58:53 +01:00
cio A fix in ccw chain processing. 2019-02-07 11:57:38 +01:00
crypto s390: vfio_ap: link the vfio_ap devices to the vfio_ap bus subsystem 2019-02-22 09:20:01 +01:00
net s390/ism: ignore some errors during deregistration 2019-02-20 09:48:32 +01:00
scsi s390/qdio: make SBAL address array type-safe 2019-02-07 11:57:07 +01:00
virtio Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-12-09 21:43:31 -08:00
Makefile kbuild: rename built-in.o to built-in.a 2018-03-26 02:01:19 +09:00