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linux/drivers/scsi/libsas
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Xingui Yang 98cfafaf2f scsi: libsas: Fix disk not being scanned in after being removed 
commit 8e68a458bc upstream.

As of commit d8649fc1c5 ("scsi: libsas: Do discovery on empty PHY to
update PHY info"), do discovery will send a new SMP_DISCOVER and update
phy->phy_change_count. We found that if the disk is reconnected and phy
change_count changes at this time, the disk scanning process will not be
triggered.

Therefore, call sas_set_ex_phy() to update the PHY info with the results of
the last query. And because the previous phy info will be used when calling
sas_unregister_devs_sas_addr(), sas_unregister_devs_sas_addr() should be
called before sas_set_ex_phy().

Fixes: d8649fc1c5 ("scsi: libsas: Do discovery on empty PHY to update PHY info")
Signed-off-by: Xingui Yang <yangxingui@huawei.com>
Link: https://lore.kernel.org/r/20240307141413.48049-3-yangxingui@huawei.com
Reviewed-by: John Garry <john.g.garry@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2024-04-03 15:19:54 +02:00
..
Kconfig scsi: libsas: Drop BLK_DEV_BSGLIB selection 2021-07-27 00:06:42 -04:00
Makefile scsi: libsas: Allow libsas to include SCSI header files directly 2021-07-20 23:11:17 -04:00
sas_ata.c scsi: libsas: Grab the ATA port lock in sas_ata_device_link_abort() 2023-05-11 23:03:42 +09:00
sas_discover.c scsi: libsas: Use void for sas_discover_event() return code 2022-02-11 17:13:29 -05:00
sas_event.c scsi: libsas: Use bool for queue_work() return code 2022-02-27 21:48:30 -05:00
sas_expander.c scsi: libsas: Fix disk not being scanned in after being removed 2024-04-03 15:19:54 +02:00
sas_host_smp.c scsi: libsas: Allow libsas to include SCSI header files directly 2021-07-20 23:11:17 -04:00
sas_init.c scsi: libsas: Resume SAS host for phy reset or enable via sysfs 2022-07-18 23:04:12 -04:00
sas_internal.h scsi: libsas: Add smp_ata_check_ready_type() 2023-02-25 11:25:39 +01:00
sas_phy.c scsi: libsas: Allow libsas to include SCSI header files directly 2021-07-20 23:11:17 -04:00
sas_port.c scsi: libsas: Clean up sas_form_port() 2022-03-01 23:56:27 -05:00
sas_scsi_host.c ata: libata-sata: Fix device queue depth control 2022-09-28 20:47:31 +09:00
sas_task.c scsi: libsas: Use enum for response frame DATAPRES field 2022-02-19 15:59:34 -05:00