Re: [PASEMI] Nemo board doesn't recognize any ATA disks with the pci-v5.16 updates

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On Tue, Nov 9, 2021 at 11:40 PM Krzysztof Wilczyński <kw@xxxxxxxxx> wrote:
> >
> > You could attach the kernel config there, too, since it didn't make it
> > to the mailing list (vger may discard them -- see
> > http://vger.kernel.org/majordomo-info.html).
>
> Bjorn and I looked at which commits that went with a recent Pull Request
> from us might be causing this, but we are a little bit at loss, and were
> hoping that you could give us a hand in troubleshooting this.

For reference, these are the patches in that branch that touch any
interesting files,
as most of the contents are for pci-controller drivers that are not used on
powerpc at all:

$ git log --no-merges --oneline 512b7931ad05..dda4b381f05d
arch/powerpc/ drivers/of/  drivers/pci/*.[ch]  include/linux/
acd61ffb2f16 PCI: Add ACS quirk for Pericom PI7C9X2G switches
978fd0056e19 PCI: of: Allow matching of an interrupt-map local to a PCI device
041284181226 of/irq: Allow matching of an interrupt-map local to an
interrupt controller
0ab8d0f6ae3f irqdomain: Make of_phandle_args_to_fwspec() generally available
5ec0a6fcb60e PCI: Do not enable AtomicOps on VFs
7a41ae80bdcb PCI: pci-bridge-emul: Fix emulation of W1C bits
fd1ae23b495b PCI: Prefer 'unsigned int' over bare 'unsigned'
ff5d3bb6e16d PCI: Remove redundant 'rc' initialization
3331325c6347 PCI/VPD: Use pci_read_vpd_any() in pci_vpd_size()
e1b0d0bb2032 PCI: Re-enable Downstream Port LTR after reset or hotplug
ac8e3cef588c PCI/sysfs: Explicitly show first MSI IRQ for 'irq'
88dee3b0efe4 PCI: Remove unused pci_pool wrappers
b5f9c644eb1b PCI: Remove struct pci_dev->driver
2a4d9408c9e8 PCI: Use to_pci_driver() instead of pci_dev->driver
4141127c44a9 powerpc/eeh: Use to_pci_driver() instead of pci_dev->driver
f9a6c8ad4922 PCI/ERR: Reduce compile time for CONFIG_PCIEAER=n
43e85554d4ed xen/pcifront: Use to_pci_driver() instead of pci_dev->driver
34ab316d7287 xen/pcifront: Drop pcifront_common_process() tests of pcidev, pdrv
9f37ab0412eb PCI/switchtec: Add check of event support
5a72431ec318 powerpc/eeh: Use dev_driver_string() instead of struct
pci_dev->driver->name
ae232f0970ea PCI: Drop pci_device_probe() test of !pci_dev->driver
097d9d414433 PCI: Drop pci_device_remove() test of pci_dev->driver
8e9028b3790d PCI: Return NULL for to_pci_driver(NULL)
357df2fc0066 PCI: Use unsigned to match sscanf("%x") in pci_dev_str_match_path()
bf2928c7a284 PCI/VPD: Add pci_read/write_vpd_any()
b2105b9f39b5 PCI: Correct misspelled and remove duplicated words
7c3855c423b1 PCI: Coalesce host bridge contiguous apertures
e0f7b1922358 PCI: Use kstrtobool() directly, sans strtobool() wrapper
36f354ec7bf9 PCI/sysfs: Return -EINVAL consistently from "store" functions
95e83e219d68 PCI/sysfs: Check CAP_SYS_ADMIN before parsing user input
af9d82626c8f PCI/ACPI: Remove OSC_PCI_SUPPORT_MASKS and OSC_PCI_CONTROL_MASKS
9a0a1417d3bb PCI: Tidy comments
06dc660e6eb8 PCI: Rename pcibios_add_device() to pcibios_device_add()
e3f4bd3462f6 PCI: Mark Atheros QCA6174 to avoid bus reset
3a19407913e8 PCI/P2PDMA: Apply bus offset correctly in DMA address calculation

Out of these, I agree that most of them seem harmless, these would
be the ones I'd try to look at more closely, or maybe revert for testing:

978fd0056e19 PCI: of: Allow matching of an interrupt-map local to a PCI device
041284181226 of/irq: Allow matching of an interrupt-map local to an
interrupt controller
e1b0d0bb2032 PCI: Re-enable Downstream Port LTR after reset or hotplug
7c3855c423b1 PCI: Coalesce host bridge contiguous apertures
3a19407913e8 PCI/P2PDMA: Apply bus offset correctly in DMA address calculation

       Arnd



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