/openbmc/linux/drivers/pci/ |
H A D | pci-label.c | diff 506140f9c06b0d136669ae7795e0264c9f21c1a7 Tue Apr 27 10:49:16 CDT 2021 Krzysztof Wilczyński <kw@linux.com> PCI/sysfs: Convert "index", "acpi_index", "label" to static attributes
The "label", "index", and "acpi_index" sysfs attributes show firmware label information about the device. If the ACPI Device Name _DSM is implemented for the device, we have:
label Device name (optional, may be null) acpi_index Instance number (unique under \_SB scope)
When there is no ACPI _DSM and SMBIOS provides an Onboard Devices structure for the device, we have:
label Reference Designation, e.g., a silkscreen label index Device Type Instance
Previously these attributes were dynamically created either by pci_bus_add_device() or the pci_sysfs_init() initcall, but since they don't need to be created or removed dynamically, we can use a static attribute so the device model takes care of addition and removal automatically.
Convert "label", "index", and "acpi_index" to static attributes.
Presence of the ACPI _DSM (device_has_acpi_name()) determines whether the ACPI information (label, acpi_index) or the SMBIOS information (label, index) is visible.
[bhelgaas: commit log, split to separate patch, add "pci_dev_" prefix] Suggested-by: Oliver O'Halloran <oohall@gmail.com> Link: https://lore.kernel.org/r/20210416205856.3234481-6-kw@linux.com Signed-off-by: Krzysztof Wilczyński <kw@linux.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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H A D | pci-sysfs.c | diff 506140f9c06b0d136669ae7795e0264c9f21c1a7 Tue Apr 27 10:49:16 CDT 2021 Krzysztof Wilczyński <kw@linux.com> PCI/sysfs: Convert "index", "acpi_index", "label" to static attributes
The "label", "index", and "acpi_index" sysfs attributes show firmware label information about the device. If the ACPI Device Name _DSM is implemented for the device, we have:
label Device name (optional, may be null) acpi_index Instance number (unique under \_SB scope)
When there is no ACPI _DSM and SMBIOS provides an Onboard Devices structure for the device, we have:
label Reference Designation, e.g., a silkscreen label index Device Type Instance
Previously these attributes were dynamically created either by pci_bus_add_device() or the pci_sysfs_init() initcall, but since they don't need to be created or removed dynamically, we can use a static attribute so the device model takes care of addition and removal automatically.
Convert "label", "index", and "acpi_index" to static attributes.
Presence of the ACPI _DSM (device_has_acpi_name()) determines whether the ACPI information (label, acpi_index) or the SMBIOS information (label, index) is visible.
[bhelgaas: commit log, split to separate patch, add "pci_dev_" prefix] Suggested-by: Oliver O'Halloran <oohall@gmail.com> Link: https://lore.kernel.org/r/20210416205856.3234481-6-kw@linux.com Signed-off-by: Krzysztof Wilczyński <kw@linux.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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H A D | pci.h | diff 506140f9c06b0d136669ae7795e0264c9f21c1a7 Tue Apr 27 10:49:16 CDT 2021 Krzysztof Wilczyński <kw@linux.com> PCI/sysfs: Convert "index", "acpi_index", "label" to static attributes
The "label", "index", and "acpi_index" sysfs attributes show firmware label information about the device. If the ACPI Device Name _DSM is implemented for the device, we have:
label Device name (optional, may be null) acpi_index Instance number (unique under \_SB scope)
When there is no ACPI _DSM and SMBIOS provides an Onboard Devices structure for the device, we have:
label Reference Designation, e.g., a silkscreen label index Device Type Instance
Previously these attributes were dynamically created either by pci_bus_add_device() or the pci_sysfs_init() initcall, but since they don't need to be created or removed dynamically, we can use a static attribute so the device model takes care of addition and removal automatically.
Convert "label", "index", and "acpi_index" to static attributes.
Presence of the ACPI _DSM (device_has_acpi_name()) determines whether the ACPI information (label, acpi_index) or the SMBIOS information (label, index) is visible.
[bhelgaas: commit log, split to separate patch, add "pci_dev_" prefix] Suggested-by: Oliver O'Halloran <oohall@gmail.com> Link: https://lore.kernel.org/r/20210416205856.3234481-6-kw@linux.com Signed-off-by: Krzysztof Wilczyński <kw@linux.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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