[sas-1017]sync mainline kernel 5.4rc3 sas patchset into ubuntu HWE kernel branch

[Andrew Cloke]

[Bug Description]
sas patchset have merged into mainline 5.4rc3 kernel. Can use this sas patchset to release UOSE basing this ubuntu 18.04.4 kernel branch, then merge into ubuntu 18.04.4 version.

[Steps to Reproduce]
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[Actual Results]

[Expected Results]

[Reproducibility]

[Additional information]
  (Firmware version, kernel version, affected hardware, etc. if required):

[Resolution]
a5ac1f5 scsi: hisi_sas: Consolidate internal abort calls in LU reset operation
e7513f6 scsi: hisi_sas: replace "%p" with "%pK"
a07b487 scsi: hisi_sas: Remove some unnecessary code
7bf18e8 scsi: hisi_sas: Modify return type of debugfs functions
e16963f scsi: hisi_sas: Drop free_irq() when devm_request_irq() failed
5f6c32d scsi: hisi_sas: Drop SMP resp frame DMA mapping
1c00314 scsi: hisi_sas: Drop kmap_atomic() in SMP command completion
599aefc scsi: hisi_sas: Make slot buf minimum allocation of PAGE_SIZE
d380f55 scsi: hisi_sas: Don't bother clearing status buffer IU in task prep
445ee2d scsi: hisi_sas: Fix out of bound at debug_I_T_nexus_reset()
b0b3e429 scsi: hisi_sas: Snapshot AXI and RAS register at debugfs
bbe0a7b scsi: hisi_sas: Snapshot HW cache of IOST and ITCT at debugfs
bee0cf2 scsi: hisi_sas: Fix pointer usage error in show debugfs IOST/ITCT
897cc76 scsi: hisi_sas: Drop hisi_sas_hw.get_free_slot
93352ab scsi: hisi_sas: Make max IPTT count equal for all hw revisions
328bc6d scsi: hisi_sas: remove set but not used variable 'irq_value'
e74006e scsi: hisi_sas: Fix the conflict between device gone and host reset
97b151e scsi: hisi_sas: Add BIST support for phy loopback
7ec7082 scsi: hisi_sas: Add hisi_sas_debugfs_alloc() to centralise allocation
4bc0580 scsi: hisi_sas: Remove some unused function arguments
27f2272 scsi: hisi_sas: Remove redundant work declaration
971b594 scsi: hisi_sas: Remove hisi_sas_hw.slot_complete
435a05c scsi: hisi_sas: Assign NCQ tag for all NCQ commands
73a4925 scsi: hisi_sas: Update all the registers after suspend and resume
b45e05a scsi: hisi_sas: Retry 3 times TMF IO for SAS disks when init device
76dd768 scsi: hisi_sas: Remove sleep after issue phy reset if sas_smp_phy_control() fails
c2bae4f scsi: hisi_sas: Directly return when running I_T_nexus reset if phy disabled
af01b2b scsi: hisi_sas: Use true/false as input parameter of sas_phy_reset()
7105e68 scsi: hisi_sas: add debugfs auto-trigger for internal abort time out
4b6b1bb scsi: hisi_sas: Make three functions static

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/

[dann frazier (dannf)]

Sorry, these types of "sync" bugs are no longer possible for the 18.04.4-targeted HWE kernel for 2 reasons:

1) The 5.3 kernel is no longer in development. It is a released/supported kernel for Ubuntu 19.10. Therefore, all changes need to meet this update policy:
https://wiki.ubuntu.com/KernelTeam/KernelUpdates

All of these patches do not qualify under that policy. If you believe an individual patch (or set of related patches) do meet this policy, please report a separate bug. You might also consider submitting those patches to kernel.org stable. If they are accepted into stable, they will most likely also meet the Ubuntu policy for inclusion.

2) We have made exceptions in the past for Kunpeng920-specific drivers. However, Kunpeng920 is now shipping and is an Ubuntu-certified SoC. Therefore the regression risk is now too great to consider exceptions.

Since these changes will automatically be included in 18.04.5, I'll target that milestone.