On Thu, Dec 06, 2018 at 09:13:24AM -0800, Bart Van Assche wrote:

On Thu, 2018-12-06 at 07:52 -0800, Christoph Hellwig wrote:

quoted

The same effects can be archived by setting the dma_boundary to

                          ^^^^^^^^
                          achieved?

quoted

PAGE_SIZE - 1 and the max_segment_size to PAGE_SIZE, so shift those
settings into the drivers.  Note that in many cases the setting might
be bogus, but this keeps the status quo.

[ ... ]

quoted

 Documentation/scsi/scsi_mid_low_api.txt |  2 --
 arch/ia64/hp/sim/simscsi.c              |  3 ++-
 drivers/scsi/a2091.c                    |  3 ++-
 drivers/scsi/advansys.c                 |  4 ++--
 drivers/scsi/aha152x.c                  |  3 ++-
 drivers/scsi/arm/acornscsi.c            |  3 ++-
 drivers/scsi/arm/arxescsi.c             |  3 ++-
 drivers/scsi/arm/cumana_1.c             |  3 ++-
 drivers/scsi/arm/cumana_2.c             |  3 ++-
 drivers/scsi/arm/eesox.c                |  3 ++-
 drivers/scsi/arm/oak.c                  |  3 ++-
 drivers/scsi/atari_scsi.c               |  3 ++-
 drivers/scsi/cxgbi/cxgb3i/cxgb3i.c      |  3 ++-
 drivers/scsi/cxgbi/cxgb4i/cxgb4i.c      |  3 ++-
 drivers/scsi/dc395x.c                   |  3 ++-
 drivers/scsi/dmx3191d.c                 |  3 ++-
 drivers/scsi/g_NCR5380.c                |  3 ++-
 drivers/scsi/gvp11.c                    |  3 ++-
 drivers/scsi/hosts.c                    |  1 -
 drivers/scsi/ips.c                      |  1 -
 drivers/scsi/iscsi_tcp.c                |  3 ++-
 drivers/scsi/mac_esp.c                  |  3 ++-
 drivers/scsi/mac_scsi.c                 |  3 ++-
 drivers/scsi/mvumi.c                    |  3 ++-
 drivers/scsi/nsp32.c                    |  3 ++-
 drivers/scsi/pcmcia/nsp_cs.c            |  3 ++-
 drivers/scsi/pcmcia/qlogic_stub.c       |  3 ++-
 drivers/scsi/qlogicfas.c                |  3 ++-
 drivers/scsi/scsi_debug.c               |  6 ++++--
 drivers/scsi/scsi_lib.c                 |  3 ---
 drivers/scsi/sgiwd93.c                  |  3 ++-
 drivers/scsi/stex.c                     |  3 ++-
 drivers/scsi/sun3_scsi.c                |  3 ++-
 drivers/scsi/ufs/ufshcd.c               |  3 ++-
 drivers/target/loopback/tcm_loop.c      |  3 ++-
 drivers/usb/storage/uas.c               |  3 ++-
 include/scsi/scsi_host.h                | 13 -------------
 37 files changed, 66 insertions(+), 54 deletions(-)

Please split this patch into two patches: one that affects SCSI LLD drivers
and another patch that affects the SCSI core. That will make both reviewing
and bisecting easier.

Just splitting it in two would not really help bisecting.  We could
split it into one per driver, but we rarely need to bisect which
driver is affected, as that usually is pretty obvious.