Merge drm/drm-fixes into drm-misc-fixes

Forwarding to v6.6-rc1.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>

Merge tag 'pci-v6.6-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci

Pull PCI updates from Bjorn Helgaas:
"Enumeration:
- Add locking to read/modify/write PCIe Capability Regist

Merge tag 'pci-v6.6-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci

Pull PCI updates from Bjorn Helgaas:
"Enumeration:
- Add locking to read/modify/write PCIe Capability Register accessors
for Link Control and Root Control
- Use pci_dev_id() when possible instead of manually composing ID
from dev->bus->number and dev->devfn

Resource management:
- Move prototypes for __weak sysfs resource files to linux/pci.h to
fix 'no previous prototype' warnings
- Make more I/O port accesses depend on HAS_IOPORT
- Use devm_platform_get_and_ioremap_resource() instead of open-coding
platform_get_resource() followed by devm_ioremap_resource()

Power management:
- Ensure devices are powered up while accessing VPD
- If device is powered-up, keep it that way while polling for PME
- Only read PCI_PM_CTRL register when available, to avoid reading the
wrong register and corrupting dev->current_state

Virtualization:
- Avoid Secondary Bus Reset on NVIDIA T4 GPUs

Error handling:
- Remove unused pci_disable_pcie_error_reporting()
- Unexport pci_enable_pcie_error_reporting(), used only by aer.c
- Unexport pcie_port_bus_type, used only by PCI core

VGA:
- Simplify and clean up typos in VGA arbiter

Apple PCIe controller driver:
- Initialize pcie->nvecs (number of available MSIs) before use

Broadcom iProc PCIe controller driver:
- Use of_property_read_bool() instead of low-level accessors for
boolean properties

Broadcom STB PCIe controller driver:
- Assert PERST# when probing BCM2711 because some bootloaders don't
do it

Freescale i.MX6 PCIe controller driver:
- Add .host_deinit() callback so we can clean up things like
regulators on probe failure or driver unload

Freescale Layerscape PCIe controller driver:
- Add support for link-down notification so the endpoint driver can
process LINK_DOWN events
- Add suspend/resume support, including manual
PME_Turn_off/PME_TO_Ack handshake
- Save Link Capabilities during probe so they can be restored when
handling a link-up event, since the controller loses the Link Width
and Link Speed values during reset

Intel VMD host bridge driver:
- Fix disable of bridge windows during domain reset; previously we
cleared the base/limit registers, which actually left the windows
enabled

Marvell MVEBU PCIe controller driver:
- Remove unused busn member

Microchip PolarFlare PCIe controller driver:
- Fix interrupt bit definitions so the SEC and DED interrupt handlers
work correctly
- Make driver buildable as a module
- Read FPGA MSI configuration parameters from hardware instead of
hard-coding them

Microsoft Hyper-V host bridge driver:
- To avoid a NULL pointer dereference, skip MSI restore after
hibernate if MSI/MSI-X hasn't been enabled

NVIDIA Tegra194 PCIe controller driver:
- Revert 'PCI: tegra194: Enable support for 256 Byte payload' because
Linux doesn't know how to reduce MPS from to 256 to 128 bytes for
endpoints below a switch (because other devices below the switch
might already be operating), which leads to 'Malformed TLP' errors

Qualcomm PCIe controller driver:
- Add DT and driver support for interconnect bandwidth voting for
'pcie-mem' and 'cpu-pcie' interconnects
- Fix broken SDX65 'compatible' DT property
- Configure controller so MHI bus master clock will be switched off
while in ASPM L1.x states
- Use alignment restriction from EPF core in EPF MHI driver
- Add Endpoint eDMA support
- Add MHI eDMA support
- Add Snapdragon SM8450 support to the EPF MHI driversupport
- Add MHI eDMA support
- Add Snapdragon SM8450 support to the EPF MHI driversupport
- Add MHI eDMA support
- Add Snapdragon SM8450 support to the EPF MHI driversupport
- Add MHI eDMA support
- Add Snapdragon SM8450 support to the EPF MHI driver
- Use iATU for EPF MHI transfers smaller than 4K to avoid eDMA setup
latency
- Add sa8775p DT binding and driver support

Rockchip PCIe controller driver:
- Use 64-bit mask on MSI 64-bit PCI address to avoid zeroing out the
upper 32 bits

SiFive FU740 PCIe controller driver:
- Set the supported number of MSI vectors so we can use all available
MSI interrupts

Synopsys DesignWare PCIe controller driver:
- Add generic dwc suspend/resume APIs (dw_pcie_suspend_noirq() and
dw_pcie_resume_noirq()) to be called by controller driver
suspend/resume ops, and a controller callback to send PME_Turn_Off

MicroSemi Switchtec management driver:
- Add support for PCIe Gen5 devices

Miscellaneous:
- Reorder and compress to reduce size of struct pci_dev
- Fix race in DOE destroy_work_on_stack()
- Add stubs to avoid casts between incompatible function types
- Explicitly include correct DT includes to untangle headers"

* tag 'pci-v6.6-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (96 commits)
PCI: qcom-ep: Add ICC bandwidth voting support
dt-bindings: PCI: qcom: ep: Add interconnects path
PCI: qcom-ep: Treat unknown IRQ events as an error
dt-bindings: PCI: qcom: Fix SDX65 compatible
PCI: endpoint: Add kernel-doc for pci_epc_mem_init() API
PCI: epf-mhi: Use iATU for small transfers
PCI: epf-mhi: Add support for SM8450
PCI: epf-mhi: Add eDMA support
PCI: qcom-ep: Add eDMA support
PCI: epf-mhi: Make use of the alignment restriction from EPF core
PCI/PM: Only read PCI_PM_CTRL register when available
PCI: qcom: Add support for sa8775p SoC
dt-bindings: PCI: qcom: Add sa8775p compatible
PCI: qcom-ep: Pass alignment restriction to the EPF core
PCI: Simplify pcie_capability_clear_and_set_word() control flow
PCI: Tidy config space save/restore messages
PCI: Fix code formatting inconsistencies
PCI: Fix typos in docs and comments
PCI: Fix pci_bus_resetable(), pci_slot_resetable() name typos
PCI: Simplify pci_dev_driver()
...

show more ...

Merge branch 'pci/controller/remove-void-cast'

- Add stubs for devm action functions that call clk_disable_unprepare() to
avoid casts between incompatible function types (Krzysztof Wilczyński)

*

Merge branch 'pci/controller/remove-void-cast'

- Add stubs for devm action functions that call clk_disable_unprepare() to
avoid casts between incompatible function types (Krzysztof Wilczyński)

* pci/controller/remove-void-cast:
PCI: microchip: Remove cast between incompatible function type
PCI: keembay: Remove cast between incompatible function type
PCI: meson: Remove cast between incompatible function type

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Merge branch 'pci/controller/microchip'

- Fix DED and SEC interrupt bit offsets so interrupt handlers work
correctly (Daire McNamara)

- Make driver buildable as a module (Daire McNamara)

- Reorg

Merge branch 'pci/controller/microchip'

- Fix DED and SEC interrupt bit offsets so interrupt handlers work
correctly (Daire McNamara)

- Make driver buildable as a module (Daire McNamara)

- Reorganize register #defines to align with hardware docs (Daire McNamara)

- Tweak register accessors to simplify callers (Daire McNamara)

- Refactor interrupt initialisation (Daire McNamara)

- Read FPGA MSI configuration parameters from hardware instead of
hard-coding them (Daire McNamara)

- Re-partition code between probe() and init() (Daire McNamara)

* pci/controller/microchip:
PCI: microchip: Re-partition code between probe() and init()
PCI: microchip: Gather MSI information from hardware config registers
PCI: microchip: Clean up initialisation of interrupts
PCI: microchip: Enable event handlers to access bridge and control pointers
PCI: microchip: Align register, offset, and mask names with HW docs
PCI: microchip: Enable building driver as a module
PCI: microchip: Correct the DED and SEC interrupt bit offsets

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PCI: microchip: Re-partition code between probe() and init()

Continuing to use pci_host_common_probe() for the PCIe Root Complex on
PolarFire SoC is leading to an extremely large _init() function an

PCI: microchip: Re-partition code between probe() and init()

Continuing to use pci_host_common_probe() for the PCIe Root Complex on
PolarFire SoC is leading to an extremely large _init() function and some
unnatural code flow. Re-partition the code so that some tasks are done
in a _probe() routine, which calls pci_host_common_probe() and then use
a much smaller _init() function, mainly to enable interrupts after
address translation tables are set up.

Link: https://lore.kernel.org/r/20230728131401.1615724-8-daire.mcnamara@microchip.com
Signed-off-by: Daire McNamara <daire.mcnamara@microchip.com>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>

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PCI: microchip: Gather MSI information from hardware config registers

The PCIe Root Complex on PolarFire SoC is configured at bitstream creation
time using Libero. Key MSI-related parameters include

PCI: microchip: Gather MSI information from hardware config registers

The PCIe Root Complex on PolarFire SoC is configured at bitstream creation
time using Libero. Key MSI-related parameters include the number of
MSIs (1/2/4/8/16/32) and the MSI address. In the device driver, extract
this information from hardware registers at init time, and use it to configure
MSI system, including configuring MSI capability structure correctly in
configuration space.

Link: https://lore.kernel.org/r/20230728131401.1615724-7-daire.mcnamara@microchip.com
Signed-off-by: Daire McNamara <daire.mcnamara@microchip.com>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>

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PCI: microchip: Clean up initialisation of interrupts

Refactor interrupt handling in _init() function into
disable_interrupts(), init_interrupts(), clear_sec_errors() and clear
ded_errors() because

PCI: microchip: Clean up initialisation of interrupts

Refactor interrupt handling in _init() function into
disable_interrupts(), init_interrupts(), clear_sec_errors() and clear
ded_errors() because current code is unwieldy and prone to bugs.

Disable interrupts as soon as possible and only enable interrupts after
address translation is setup to prevent spurious axi2pcie and pcie2axi
translation errors being reported.

Link: https://lore.kernel.org/r/20230728131401.1615724-6-daire.mcnamara@microchip.com
Signed-off-by: Daire McNamara <daire.mcnamara@microchip.com>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>

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PCI: microchip: Enable event handlers to access bridge and control pointers

Minor re-organisation so that event handlers can access both a pointer
to the bridge area of the PCIe Root Port and the co

PCI: microchip: Enable event handlers to access bridge and control pointers

Minor re-organisation so that event handlers can access both a pointer
to the bridge area of the PCIe Root Port and the control area of the PCIe
Root Port.

Link: https://lore.kernel.org/r/20230728131401.1615724-5-daire.mcnamara@microchip.com
Signed-off-by: Daire McNamara <daire.mcnamara@microchip.com>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>

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PCI: microchip: Align register, offset, and mask names with HW docs

Minor code re-organisation so that macros representing registers ascend in
numerical order and use the same names as their hardwar

PCI: microchip: Align register, offset, and mask names with HW docs

Minor code re-organisation so that macros representing registers ascend in
numerical order and use the same names as their hardware documentation.
Removed registers not used by the driver.

Link: https://lore.kernel.org/r/20230728131401.1615724-4-daire.mcnamara@microchip.com
Signed-off-by: Daire McNamara <daire.mcnamara@microchip.com>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>

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PCI: microchip: Enable building driver as a module

Enable building driver as a module. The expected use case is the
driver is built as a module, is installed when needed, and cannot be
removed once

PCI: microchip: Enable building driver as a module

Enable building driver as a module. The expected use case is the
driver is built as a module, is installed when needed, and cannot be
removed once installed since it is not possible to clean-up
the irq_chip data structures on removal, as described in:

https://lore.kernel.org/linux-pci/87y1wgbah8.wl-maz@kernel.org/

The driver has .suppress_bind_attrs set to true for the same
reasons (ie prevent unbinding, that would leave the kernel
with stale IRQ configuration that cannot be cleaned up).

Link: https://lore.kernel.org/linux-pci/87y1wgbah8.wl-maz@kernel.org/
Link: https://lore.kernel.org/r/20230728131401.1615724-3-daire.mcnamara@microchip.com
Suggested-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Daire McNamara <daire.mcnamara@microchip.com>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>

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PCI: microchip: Correct the DED and SEC interrupt bit offsets

The SEC and DED interrupt bits are laid out the wrong way round so the SEC
interrupt handler attempts to mask, unmask, and clear the DED

PCI: microchip: Correct the DED and SEC interrupt bit offsets

The SEC and DED interrupt bits are laid out the wrong way round so the SEC
interrupt handler attempts to mask, unmask, and clear the DED interrupt
and vice versa. Correct the bit offsets so that each interrupt handler
operates properly.

Link: https://lore.kernel.org/r/20230728131401.1615724-2-daire.mcnamara@microchip.com
Fixes: 6f15a9c9f941 ("PCI: microchip: Add Microchip PolarFire PCIe controller driver")
Signed-off-by: Daire McNamara <daire.mcnamara@microchip.com>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>

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PCI: microchip: Remove cast between incompatible function type

Rather than casting void(*)(struct clk *) to void (*)(void *), that
forces conversion to an incompatible function type, replace the cas

PCI: microchip: Remove cast between incompatible function type

Rather than casting void(*)(struct clk *) to void (*)(void *), that
forces conversion to an incompatible function type, replace the cast
with a small local stub function with a signature that matches what
the devm_add_action_or_reset() function expects.

The sub function takes a void *, then passes it directly to
clk_disable_unprepare(), which handles the more specific type.

Reported by clang when building with warnings enabled:

drivers/pci/controller/pcie-microchip-host.c:866:32: warning: cast from 'void (*)(struct clk *)' to 'void (*)(void *)' converts to incompatible function type [-Wcast-function-type-strict]
devm_add_action_or_reset(dev, (void (*) (void *))clk_disable_unprepare,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
No functional changes are intended.

Fixes: 6f15a9c9f941 ("PCI: microchip: Add Microchip PolarFire PCIe controller driver")
Link: https://lore.kernel.org/linux-pci/20230629165956.237832-3-kwilczynski@kernel.org
Link: https://lore.kernel.org/linux-pci/20230511-pci-microchip-clk-cast-v1-1-7674f4d4e218@kernel.org
Link: https://lore.kernel.org/linux-pci/20230111125323.1911373-3-daire.mcnamara@microchip.com
Co-developed-by: Daire McNamara <daire.mcnamara@microchip.com>
Signed-off-by: Daire McNamara <daire.mcnamara@microchip.com>
Co-developed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Simon Horman <horms@kernel.org>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>

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Merge branch 'next' into for-linus

Prepare input updates for 6.4 merge window.

Merge branch 'for-6.4/amd-sfh' into for-linus

- assorted functional fixes for amd-sfh driver (Basavaraj Natikar)

Merge drm/drm-next into drm-intel-gt-next

Need to pull in commit from drm-next (earlier in drm-intel-next):

1eca0778f4b3 ("drm/i915: add struct i915_dsm to wrap dsm members together")

In order to

Merge drm/drm-next into drm-intel-gt-next

Need to pull in commit from drm-next (earlier in drm-intel-next):

1eca0778f4b3 ("drm/i915: add struct i915_dsm to wrap dsm members together")

In order to merge following patch to drm-intel-gt-next:

https://patchwork.freedesktop.org/patch/530942/?series=114925&rev=6

Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

show more ...

Merge drm/drm-next into drm-intel-next

Catch up with 6.3-rc cycle...

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

Merge remote-tracking branch 'drm/drm-next' into msm-next

Merge drm-next into msm-next to pick up external clk and PM dependencies
for improved a6xx GPU reset sequence.

Signed-off-by: Rob Clark <ro

Merge remote-tracking branch 'drm/drm-next' into msm-next

Merge drm-next into msm-next to pick up external clk and PM dependencies
for improved a6xx GPU reset sequence.

Signed-off-by: Rob Clark <robdclark@chromium.org>

show more ...

Merge tag 'v6.3-rc2' into next

Merge with mainline to get of_property_present() and other newer APIs.

Merge drm/drm-fixes into drm-misc-fixes

Backmerging to get latest upstream.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>

Merge drm/drm-next into drm-misc-next

Backmerging to get v6.3-rc1 and sync with the other DRM trees.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>

Merge remote-tracking branch 'acme/perf-tools' into perf-tools-next

To pick up perf-tools fixes just merged upstream.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Merge tag 'pci-v6.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci

Pull PCI updates from Bjorn Helgaas:
"Enumeration:

- Rework portdrv shutdown so it disables interrupts but

Merge tag 'pci-v6.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci

Pull PCI updates from Bjorn Helgaas:
"Enumeration:

- Rework portdrv shutdown so it disables interrupts but doesn't
disable bus mastering, which leads to hangs on Loongson LS7A

- Add mechanism to prevent Max_Read_Request_Size (MRRS) increases,
again to avoid hardware issues on Loongson LS7A (and likely other
devices based on DesignWare IP)

- Ignore devices with a firmware (DT or ACPI) node that says the
device is disabled

Resource management:

- Distribute spare resources to unconfigured hotplug bridges at
boot-time (not just when hot-adding such a bridge), which makes
hot-adding devices to docks work better. Tried this in v6.1 but had
to revert for regressions, so try again

- Fix root bus issue that dropped resources that happened to end
at 0, e.g., [bus 00]

PCI device hotplug:

- Remove device locking when marking device as disconnected so this
doesn't have to wait for concurrent driver bind/unbind to complete

- Quirk more Qualcomm bridges that don't fully implement the PCIe
Slot Status 'Command Completed' bit

Power management:

- Account for _S0W of the target bridge in acpi_pci_bridge_d3() so we
don't miss hot-add notifications for USB4 docks, Thunderbolt, etc

Reset:

- Observe delay after reset, e.g., resuming from system sleep,
regardless of whether a bridge can suspend to D3cold at runtime

- Wait for secondary bus to become ready after a bridge reset

Virtualization:

- Avoid FLR on some AMD FCH AHCI adapters where it doesn't work

- Allow independent IOMMU groups for some Wangxun NICs that prevent
peer-to-peer transactions but don't advertise an ACS Capability

Error handling:

- Configure End-to-End-CRC (ECRC) only if Linux owns the AER
Capability

- Remove redundant Device Control Error Reporting Enable in the AER
service driver since this is already done for all devices during
enumeration

ASPM:

- Add pci_enable_link_state() interface to allow drivers to enable
ASPM link state

Endpoint framework:

- Move dra7xx and tegra194 linkup processing from hard IRQ to
threaded IRQ handler

- Add a separate lock for endpoint controller list of endpoint
function drivers to prevent deadlock in callbacks

- Pass events from endpoint controller to endpoint function drivers
via callbacks instead of notifiers

Synopsys DesignWare eDMA controller driver (acked by Vinod):

- Fix CPU vs PCI address issues

- Fix source vs destination address issues

- Fix issues with interleaved transfer semantics

- Fix channel count initialization issue (issue still exists in
several other drivers)

- Clean up and improve debugfs usage so it will work on platforms
with several eDMA devices

Baikal T-1 PCIe controller driver:

- Set a 64-bit DMA mask

Freescale i.MX6 PCIe controller driver:

- Add i.MX8MM, i.MX8MQ, i.MX8MP endpoint mode DT binding and driver
support

Intel VMD host bridge driver:

- Add quirk to configure PCIe ASPM and LTR. This is normally done by
BIOS, and will be for future products

Marvell MVEBU PCIe controller driver:

- Mark this driver as broken in Kconfig since bugs prevent its daily
usage

MediaTek MT7621 PCIe controller driver:

- Delay PHY port initialization to improve boot reliability for ZBT
WE1326, ZBT WF3526-P, and some Netgear models

Qualcomm PCIe controller driver:

- Add MSM8998 DT compatible string

- Unify MSM8996 and MSM8998 clock orderings

- Add SM8350 DT binding and driver support

- Add IPQ8074 Gen3 DT binding and driver support

- Correct qcom,perst-regs in DT binding

- Add qcom_pcie_host_deinit() so the PHY is powered off and
regulators and clocks are disabled on late host-init errors

Socionext UniPhier Pro5 controller driver:

- Clean up uniphier-ep reg, clocks, resets, and their names in DT
binding

Synopsys DesignWare PCIe controller driver:

- Restrict coherent DMA mask to 32 bits for MSI, but allow controller
drivers to set 64-bit streaming DMA mask

- Add eDMA engine support in both Root Port and Endpoint controllers

Miscellaneous:

- Remove MODULE_LICENSE from boolean drivers so they don't look like
modules so modprobe can complain about them"

* tag 'pci-v6.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (86 commits)
PCI: dwc: Add Root Port and Endpoint controller eDMA engine support
PCI: bt1: Set 64-bit DMA mask
PCI: dwc: Restrict only coherent DMA mask for MSI address allocation
dmaengine: dw-edma: Prepare dw_edma_probe() for builtin callers
dmaengine: dw-edma: Depend on DW_EDMA instead of selecting it
dmaengine: dw-edma: Add mem-mapped LL-entries support
PCI: Remove MODULE_LICENSE so boolean drivers don't look like modules
PCI: hv: Drop duplicate PCI_MSI dependency
PCI/P2PDMA: Annotate RCU dereference
PCI/sysfs: Constify struct kobj_type pci_slot_ktype
PCI: hotplug: Allow marking devices as disconnected during bind/unbind
PCI: pciehp: Add Qualcomm quirk for Command Completed erratum
PCI: qcom: Add IPQ8074 Gen3 port support
dt-bindings: PCI: qcom: Add IPQ8074 Gen3 port
dt-bindings: PCI: qcom: Sort compatibles alphabetically
PCI: qcom: Fix host-init error handling
PCI: qcom: Add SM8350 support
dt-bindings: PCI: qcom: Add SM8350
dt-bindings: PCI: qcom-ep: Correct qcom,perst-regs
dt-bindings: PCI: qcom: Unify MSM8996 and MSM8998 clock order
...

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Merge branch 'pci/kbuild'

- Remove MODULE_LICENSE from boolean drivers so they don't look like
modules so modprobe will complain about them (Nick Alcock)

* pci/kbuild:
PCI: Remove MODULE_LICENS

Merge branch 'pci/kbuild'

- Remove MODULE_LICENSE from boolean drivers so they don't look like
modules so modprobe will complain about them (Nick Alcock)

* pci/kbuild:
PCI: Remove MODULE_LICENSE so boolean drivers don't look like modules

show more ...

Merge branch 'next' into for-linus

Prepare input updates for 6.3 merge window.

PCI: Remove MODULE_LICENSE so boolean drivers don't look like modules

Since 8b41fc4454e3 ("kbuild: create modules.builtin without
Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations

PCI: Remove MODULE_LICENSE so boolean drivers don't look like modules

Since 8b41fc4454e3 ("kbuild: create modules.builtin without
Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations are
used to identify modules. As a consequence, MODULE_LICENSE in non-modules
causes modprobe to misidentify the object file as a module when it is not,
and modprobe might succeed rather than failing with a suitable error
message.

For tristate modules that can be either built-in or loaded at runtime,
modprobe succeeds in both cases:

# modprobe ext4
[exit status zero if CONFIG_EXT4_FS=y or =m]

For boolean modules like the Standard Hot Plug Controller driver (shpchp)
that cannot be loaded at runtime, modprobe should always fail like this:

# modprobe shpchp
modprobe: FATAL: Module shpchp not found in directory /lib/modules/...
[exit status non-zero regardless of CONFIG_HOTPLUG_PCI_SHPC]

but prior to this commit, shpchp_core.c contained MODULE_LICENSE, so
"modprobe shpchp" silently succeeded when it should have failed.

Remove MODULE_LICENSE in files that cannot be built as modules.

[bhelgaas: commit log, squash]
Suggested-by: Luis Chamberlain <mcgrof@kernel.org>
Link: https://lore.kernel.org/r/20230216152410.4312-1-nick.alcock@oracle.com/
Signed-off-by: Nick Alcock <nick.alcock@oracle.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Hitomi Hasegawa <hasegawa-hitomi@fujitsu.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Lorenzo Pieralisi <lpieralisi@kernel.org>

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