Re: [PATCH] PCI: rcar: select PCI_MSI_IRQ_DOMAIN

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On Sat, Apr 16, 2016 at 10:15:46PM +0200, Arnd Bergmann wrote:
> The R-CAR PCIe driver requires the use of irq domains for its
> MSI code:
> 
> drivers/pci/host/pcie-rcar.c: In function 'rcar_pcie_msi_irq':
> drivers/pci/host/pcie-rcar.c:635:9: error: implicit declaration of function 'irq_find_mapping' [-Werror=implicit-function-declaration]
> drivers/pci/host/pcie-rcar.c: In function 'rcar_msi_setup_irq':
> drivers/pci/host/pcie-rcar.c:666:8: error: implicit declaration of function 'irq_create_mapping' [-Werror=implicit-function-declaration]
> drivers/pci/host/pcie-rcar.c: In function 'rcar_pcie_enable_msi':
> drivers/pci/host/pcie-rcar.c:725:16: error: implicit declaration of function 'irq_domain_add_linear' [-Werror=implicit-function-declaration]
> drivers/pci/host/pcie-rcar.c:725:14: error: assignment makes pointer from integer without a cast [-Werror=int-conversion]
>   msi->domain = irq_domain_add_linear(pcie->dev->of_node, INT_PCI_MSI_NR,
>               ^
> drivers/pci/host/pcie-rcar.c:762:2: error: implicit declaration of function 'irq_domain_remove' [-Werror=implicit-function-declaration]
> 
> This ensures that the feature is always enabled by adding a
> Kconfig select statement. This is not consistent with what the
> other drivers do at the moment, but I have another patch that
> changes them to do it like this one, which is more logical.
> 
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>

Applied with Simon's ack to pci/host-rcar for v4.7, thanks!

> ---
>  drivers/pci/host/Kconfig | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/pci/host/Kconfig b/drivers/pci/host/Kconfig
> index 169c545bf70a..6d642aa390b0 100644
> --- a/drivers/pci/host/Kconfig
> +++ b/drivers/pci/host/Kconfig
> @@ -72,6 +72,8 @@ config PCI_RCAR_GEN2
>  config PCI_RCAR_GEN2_PCIE
>  	bool "Renesas R-Car PCIe controller"
>  	depends on ARCH_RENESAS || (ARM && COMPILE_TEST)
> +	select PCI_MSI
> +	select PCI_MSI_IRQ_DOMAIN
>  	help
>  	  Say Y here if you want PCIe controller support on R-Car Gen2 SoCs.
>  
> -- 
> 2.7.0
> 
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