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95289e49f0
A larger than usual set of fixes for 6.6-rc4 due to the unexpected
number of fixes needed to address ATA disks suspend/resume issues.
In more details:
- Add missing additionalProperties on child nodes to the pata-common DT
bindings (Rob).
- Fix handling of the REPORT SUPPORTED OPERATION CODES command to
ignore reserved bits (Niklas).
- Increase port multiplier soft reset timeout to accomodate slow
devices and avoid issues on wakeup (Matthias).
- A couple of minor code fixes to avoid compilation warnings in
libata-core and libata-eh (me).
- Many patches from me to address suspend/resume issues, and in
particular a potential deadlock on resume due to the SCSI disk driver
resume operation not being synchronized with libata EH port resume
handling. This is addressed by changing the scsi disk driver disk
start/stop control to allow libata to execute disk suspend (spin
down) and resume (spin up) on its own during system suspend/resume.
Runtime suspend/resume control remains with the SCSI disk driver.
Other fixes include:
- Fix libata power management request issuing to avoid races.
- Establish a link between ATA ports and SCSI devices to order PM
operations.
- Fix device removal to avoid issues with driver rmmod removal.
- Fix synchronization of libata device rescan and SCSI disk resume
operation.
- Remove libsas PM operations as suspend/resume is handled directly
by the sas controller resume.
- Fix the SCSI disk driver to not issue commands to suspended disks,
thus avoiding potential system lock-up on resume.
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Merge tag 'ata-6.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata
Pull ATA fixes from Damien Le Moal:
"A larger than usual set of fixes for 6.6-rc4 due to the unexpected
number of fixes needed to address ATA disks suspend/resume issues.
In more detail:
- Add missing additionalProperties on child nodes to the pata-common
DT bindings (Rob)
- Fix handling of the REPORT SUPPORTED OPERATION CODES command to
ignore reserved bits (Niklas)
- Increase port multiplier soft reset timeout to accomodate slow
devices and avoid issues on wakeup (Matthias)
- A couple of minor code fixes to avoid compilation warnings in
libata-core and libata-eh (me)
- Many patches from me to address suspend/resume issues, and in
particular a potential deadlock on resume due to the SCSI disk
driver resume operation not being synchronized with libata EH port
resume handling.
This is addressed by changing the scsi disk driver disk start/stop
control to allow libata to execute disk suspend (spin down) and
resume (spin up) on its own during system suspend/resume. Runtime
suspend/resume control remains with the SCSI disk driver.
Other fixes include:
- Fix libata power management request issuing to avoid races
- Establish a link between ATA ports and SCSI devices to order PM
operations
- Fix device removal to avoid issues with driver rmmod removal
- Fix synchronization of libata device rescan and SCSI disk resume
operation
- Remove libsas PM operations as suspend/resume is handled
directly by the sas controller resume
- Fix the SCSI disk driver to not issue commands to suspended
disks, thus avoiding potential system lock-up on resume"
* tag 'ata-6.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata:
ata: libata-eh: Fix compilation warning in ata_eh_link_report()
ata: libata-core: Fix compilation warning in ata_dev_config_ncq()
scsi: sd: Do not issue commands to suspended disks on shutdown
ata: libata-core: Do not register PM operations for SAS ports
ata: libata-scsi: Fix delayed scsi_rescan_device() execution
scsi: Do not attempt to rescan suspended devices
ata: libata-scsi: Disable scsi device manage_system_start_stop
scsi: sd: Differentiate system and runtime start/stop management
ata: libata-scsi: link ata port and scsi device
ata: libata-core: Fix port and device removal
ata: libata-core: Fix ata_port_request_pm() locking
ata: libata-sata: increase PMP SRST timeout to 10s
ata: libata-scsi: ignore reserved bits for REPORT SUPPORTED OPERATION CODES
dt-bindings: ata: pata-common: Add missing additionalProperties on child nodes
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.