s390 patches for 4.18-rc2

Hi Linus,

please pull from the 'for-linus' branch of

git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux.git for-linus

to receive the following updates:

common I/O layer
- Fix bit-fields crossing storage-unit boundaries in css_general_char

dasd driver
- Avoid a sparse warning in regard to the queue lock
- Allocate the struct dasd_ccw_req as per request data. Only for internal I/O is the structure allocated separately
- Remove the unused function dasd_kmalloc_set_cda
- Save a few bytes in struct dasd_ccw_req by reordering fields
- Convert remaining users of dasd_kmalloc_request to dasd_smalloc_request and remove the now unused function

vfio/ccw
- Refactor and improve pfn_array_alloc_pin/pfn_array_pin
- Add a new tracepoint for failed vfio/ccw requests
- Add a CCW translation improvement to accept more requests as valid
- Bug fixes

Shortlog:

Dong Jia Shi (4):
vfio: ccw: fix error return in vfio_ccw_sch_event
vfio: ccw: shorten kernel doc description for pfn_array_pin()
vfio: ccw: refactor and improve pfn_array_alloc_pin()
vfio: ccw: set ccw->cda to NULL defensively

Halil Pasic (2):
vfio: ccw: push down unsupported IDA check
vfio: ccw: add tracepoints for interesting error paths

Sebastian Ott (6):
s390/cio: sanitize css_general_characteristics definition s390/dasd: simplify locking in process_final_queue s390/dasd: move dasd_ccw_req to per request data s390/dasd: remove dasd_kmalloc_set_cda s390/dasd: reshuffle struct dasd_ccw_req s390/dasd: only use preallocated requests

 arch/s390/include/asm/css_chars.h |  62 +++++++-------
 drivers/s390/block/dasd.c         | 171 +++++++++++++-------------------------
 drivers/s390/block/dasd_alias.c   |   6 +-
 drivers/s390/block/dasd_diag.c    |   3 +-
 drivers/s390/block/dasd_eckd.c    |  46 +++++-----
 drivers/s390/block/dasd_eer.c     |  10 +--
 drivers/s390/block/dasd_fba.c     |   6 +-
 drivers/s390/block/dasd_int.h     |  26 ++----
 drivers/s390/cio/Makefile         |   1 +
 drivers/s390/cio/vfio_ccw_cp.c    | 140 ++++++++++++++++---------------
 drivers/s390/cio/vfio_ccw_drv.c   |   5 +-
 drivers/s390/cio/vfio_ccw_fsm.c   |  17 +++-
 drivers/s390/cio/vfio_ccw_trace.h |  54 ++++++++++++
 13 files changed, 282 insertions(+), 265 deletions(-)
 create mode 100644 drivers/s390/cio/vfio_ccw_trace.h