Re: [PATCH] PCI: Improve compile-test coverage

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On Thu, Dec 2, 2021 at 5:06 AM Fan Fei <ffclaire1224@xxxxxxxxx> wrote:
>
> Remove the "depends on OF" in Kconfig of PCI controllers. These drivers
> depends on CONFIG_OF because they use interface in of.h file, e.g.
> "of_match_ptr()". But these interface are defined as stub if CONFIG_OF is
> not set. Thus we can compile them without CONFIG_OF, instead just with
> COMPILE_TEST.
>
> Signed-off-by: Fan Fei <ffclaire1224@xxxxxxxxx>
> ---
> Hi, Bjorn,
>
> I just did as what you suggested, remove the "depends on OF" in Konfig, and
> compile it. It seems to work well. On the thread
> https://lore.kernel.org/all/20201005215817.GA3063223@bjorn-Precision-5520/
> mentioned by the task excel, there are some replacement of "of_match_ptr()",
> but this function seems to be defined even CONFIG_OF is not set. Is it
> correct to reply in this thread or shall I send it to mail list directly?
>
> Kind regards
> Fan
>
>  drivers/pci/controller/Kconfig | 24 ++++++------------------
>  1 file changed, 6 insertions(+), 18 deletions(-)
>
> diff --git a/drivers/pci/controller/Kconfig b/drivers/pci/controller/Kconfig
> index 93b141110537..6e988420f900 100644
> --- a/drivers/pci/controller/Kconfig
> +++ b/drivers/pci/controller/Kconfig
> @@ -8,13 +8,11 @@ config PCI_MVEBU
>         depends on ARCH_MVEBU || ARCH_DOVE || COMPILE_TEST
>         depends on MVEBU_MBUS
>         depends on ARM
> -       depends on OF
>         select PCI_BRIDGE_EMUL
>
>  config PCI_AARDVARK
>         tristate "Aardvark PCIe controller"
>         depends on (ARCH_MVEBU && ARM64) || COMPILE_TEST
> -       depends on OF
>         depends on PCI_MSI_IRQ_DOMAIN
>         select PCI_BRIDGE_EMUL
>         help
> @@ -34,12 +32,11 @@ config PCIE_XILINX_NWL
>
>  config PCI_FTPCI100
>         bool "Faraday Technology FTPCI100 PCI controller"
> -       depends on OF
>         default ARCH_GEMINI
>
>  config PCI_IXP4XX
>         bool "Intel IXP4xx PCI controller"
> -       depends on ARM && OF
> +       depends on ARM
>         depends on ARCH_IXP4XX || COMPILE_TEST
>         default ARCH_IXP4XX
>         help
> @@ -85,7 +82,6 @@ config PCI_HOST_COMMON
>
>  config PCI_HOST_GENERIC
>         tristate "Generic PCI host controller"
> -       depends on OF
>         select PCI_HOST_COMMON
>         select IRQ_DOMAIN
>         help
> @@ -94,7 +90,7 @@ config PCI_HOST_GENERIC
>
>  config PCIE_XILINX
>         bool "Xilinx AXI PCIe host bridge support"
> -       depends on OF || COMPILE_TEST
> +       depends on COMPILE_TEST
>         depends on PCI_MSI_IRQ_DOMAIN
>         help
>           Say 'Y' here if you want kernel to support the Xilinx AXI PCIe
> @@ -111,7 +107,7 @@ config PCIE_XILINX_CPM
>  config PCI_XGENE
>         bool "X-Gene PCIe controller"
>         depends on ARM64 || COMPILE_TEST
> -       depends on OF || (ACPI && PCI_QUIRKS)
> +       depends on ACPI && PCI_QUIRKS

This is wrong because now it will only build if ACPI && PCI_QUIRKS.
Maybe that condition can be dropped too.

>         help
>           Say Y here if you want internal PCI support on APM X-Gene SoC.
>           There are 5 internal PCIe ports available. Each port is GEN3 capable
> @@ -128,7 +124,6 @@ config PCI_XGENE_MSI
>
>  config PCI_V3_SEMI
>         bool "V3 Semiconductor PCI controller"
> -       depends on OF
>         depends on ARM || COMPILE_TEST
>         default ARCH_INTEGRATOR_AP
>
> @@ -146,7 +141,6 @@ config PCIE_IPROC
>  config PCIE_IPROC_PLATFORM
>         tristate "Broadcom iProc PCIe platform bus driver"
>         depends on ARCH_BCM_IPROC || (ARM && COMPILE_TEST)
> -       depends on OF
>         select PCIE_IPROC
>         default ARCH_BCM_IPROC
>         help
> @@ -190,7 +184,7 @@ config PCIE_ALTERA_MSI
>  config PCI_HOST_THUNDER_PEM
>         bool "Cavium Thunder PCIe controller to off-chip devices"
>         depends on ARM64 || COMPILE_TEST
> -       depends on OF || (ACPI && PCI_QUIRKS)
> +       depends on ACPI && PCI_QUIRKS

Same here

>         select PCI_HOST_COMMON
>         help
>           Say Y here if you want PCIe support for CN88XX Cavium Thunder SoCs.
> @@ -198,7 +192,7 @@ config PCI_HOST_THUNDER_PEM
>  config PCI_HOST_THUNDER_ECAM
>         bool "Cavium Thunder ECAM controller to on-chip devices on pass-1.x silicon"
>         depends on ARM64 || COMPILE_TEST
> -       depends on OF || (ACPI && PCI_QUIRKS)
> +       depends on ACPI && PCI_QUIRKS

And here.

>         select PCI_HOST_COMMON
>         help
>           Say Y here if you want ECAM support for CN88XX-Pass-1.x Cavium Thunder SoCs.
> @@ -210,7 +204,6 @@ config PCIE_ROCKCHIP
>  config PCIE_ROCKCHIP_HOST
>         tristate "Rockchip PCIe host controller"
>         depends on ARCH_ROCKCHIP || COMPILE_TEST
> -       depends on OF
>         depends on PCI_MSI_IRQ_DOMAIN
>         select MFD_SYSCON
>         select PCIE_ROCKCHIP
> @@ -222,7 +215,6 @@ config PCIE_ROCKCHIP_HOST
>  config PCIE_ROCKCHIP_EP
>         bool "Rockchip PCIe endpoint controller"
>         depends on ARCH_ROCKCHIP || COMPILE_TEST
> -       depends on OF
>         depends on PCI_ENDPOINT
>         select MFD_SYSCON
>         select PCIE_ROCKCHIP
> @@ -234,7 +226,6 @@ config PCIE_ROCKCHIP_EP
>  config PCIE_MEDIATEK
>         tristate "MediaTek PCIe controller"
>         depends on ARCH_MEDIATEK || COMPILE_TEST
> -       depends on OF
>         depends on PCI_MSI_IRQ_DOMAIN
>         help
>           Say Y here if you want to enable PCIe controller support on
> @@ -272,7 +263,6 @@ config PCIE_BRCMSTB
>         tristate "Broadcom Brcmstb PCIe host controller"
>         depends on ARCH_BRCMSTB || ARCH_BCM2835 || ARCH_BCM4908 || \
>                    BMIPS_GENERIC || COMPILE_TEST
> -       depends on OF
>         depends on PCI_MSI_IRQ_DOMAIN
>         default ARCH_BRCMSTB
>         help
> @@ -289,7 +279,6 @@ config PCI_HYPERV_INTERFACE
>  config PCI_LOONGSON
>         bool "LOONGSON PCI Controller"
>         depends on MACH_LOONGSON64 || COMPILE_TEST
> -       depends on OF
>         depends on PCI_QUIRKS
>         default MACH_LOONGSON64
>         help
> @@ -298,7 +287,7 @@ config PCI_LOONGSON
>
>  config PCIE_MICROCHIP_HOST
>         bool "Microchip AXI PCIe host bridge support"
> -       depends on PCI_MSI && OF
> +       depends on PCI_MSI
>         select PCI_MSI_IRQ_DOMAIN
>         select GENERIC_MSI_IRQ_DOMAIN
>         select PCI_HOST_COMMON
> @@ -321,7 +310,6 @@ config PCIE_APPLE_MSI_DOORBELL_ADDR
>  config PCIE_APPLE
>         tristate "Apple PCIe controller"
>         depends on ARCH_APPLE || COMPILE_TEST
> -       depends on OF
>         depends on PCI_MSI_IRQ_DOMAIN
>         select PCI_HOST_COMMON
>         help
> --
> 2.25.1
>



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