This series re-orders the calls to scsi_remove_host() and sas_remove_host() in all SAS HBA drivers (apart from mpt3sas which is doing it correctly). This is for two reasons: 1) After the change to recursive removal of sysfs entries, we're trying to remove already removed kobjects when doing a sas_remove_host() _after_ a scsi_remove_host() 2) the documentation mandates it even (becuase of 1) Unfortunately this does not completely solve issues with recursive sysfs removals in SAS, as libsas has asynchronous behaviour where strong ordering would be needed. But I am working on it and I do know other do as well. So if anyone else (James, Christoph, Bart, I'm looking at you) has an idea, I do have test setups and I'm willing to take input in form of ideas and patches. I also dropped the SDEV_CANCEL state change for now. We re-evaluate it once we have an idea how to tackle the ordering issues and place it into sas_unregister_ha() as per James' comment. Thanks, Johannes Johannes Thumshirn (5): scsi: isci: remove the SAS host after the SCSI host aic94xx: remove the SAS host after the SCSI host scsi: hisi_sas: remove the SAS host after the SCSI host mvsas: remove the SAS host after the SCSI host scsi: pm8001: remove the SAS host after the SCSI host drivers/scsi/aic94xx/aic94xx_init.c | 7 ++++--- drivers/scsi/hisi_sas/hisi_sas_main.c | 4 ++-- drivers/scsi/isci/init.c | 3 ++- drivers/scsi/mvsas/mv_init.c | 6 ++++-- drivers/scsi/pm8001/pm8001_init.c | 8 ++++++-- 5 files changed, 18 insertions(+), 10 deletions(-) -- 2.12.0
