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Date: Thu, 2 Dec 2021 11:31:55 -0600
From: Rob Herring <robh@...nel.org>
To: Fan Fei <ffclaire1224@...il.com>
Cc: helgaas@...nel.org, bjorn@...gaas.com, bhelgaas@...gle.com,
linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
lorenzo.pieralisi@....com, pratyush.anand@...il.com,
thomas.petazzoni@...tlin.com
Subject: Re: [PATCH] PCI: Improve compile-test coverage
On Thu, Dec 2, 2021 at 5:06 AM Fan Fei <ffclaire1224@...il.com> 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@...il.com>
> ---
> 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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