linux-kernel - Re: [PATCH] arm64/sunxi: 4.6-rc1: Add dependency on generic irq chip

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Message-ID: <5704D13E.6060701@arm.com>
Date:	Wed, 6 Apr 2016 10:05:02 +0100
From:	Andre Przywara <andre.przywara@....com>
To:	Suzuki K Poulose <suzuki.poulose@....com>,
	linux-arm-kernel@...ts.infradead.org, arm@...nel.org
Cc:	olof@...om.net, arnd@...db.de, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64/sunxi: 4.6-rc1: Add dependency on generic irq chip

Hi,

On 29/03/16 11:03, Suzuki K Poulose wrote:
> Commit ce3dd55b99b1 ("arm64: Introduce Allwinner SoC config option"),
> added support for ARCH_SUNXI on arm64, but failed to select
> GENERIC_IRQ_CHIP, which is required for drivers/irqchip/irq-sunxi-nmi.c
> and causes build failures like :

Thanks for the catch! GENERIC_IRQ_CHIP somehow gets selected by
defconfig, so I didn't see the issue.

Currently we don't need the irq-sunxi-nmi driver, but we may in the
future and it depends on CONFIG_ARCH_SUNXI only, so I guess this patch
is the easiest solution (rather than creating a separate config symbol
for it, which may be an option for later).

So...

> 
>   UPD     include/generated/compile.h
>   CC      init/version.o
>   LD      init/built-in.o
> drivers/built-in.o: In function `sunxi_sc_nmi_set_type':
> drivers/irqchip/irq-sunxi-nmi.c:114: undefined reference to `irq_setup_alt_chip'
> drivers/built-in.o: In function `irq_domain_add_linear':
> include/linux/irqdomain.h:253: undefined reference to `irq_generic_chip_ops'
> include/linux/irqdomain.h:253: undefined reference to `irq_generic_chip_ops'
> drivers/built-in.o: In function `sunxi_sc_nmi_irq_init':
> drivers/irqchip/irq-sunxi-nmi.c:146: undefined reference to `irq_alloc_domain_generic_chips'
> drivers/irqchip/irq-sunxi-nmi.c:161: undefined reference to `irq_get_domain_generic_chip'
> drivers/irqchip/irq-sunxi-nmi.c:170: undefined reference to `irq_gc_mask_clr_bit'
> drivers/irqchip/irq-sunxi-nmi.c:171: undefined reference to `irq_gc_mask_set_bit'
> drivers/irqchip/irq-sunxi-nmi.c:172: undefined reference to `irq_gc_ack_set_bit'
> drivers/irqchip/irq-sunxi-nmi.c:170: undefined reference to `irq_gc_mask_clr_bit'
> 
> Fixes: commit ce3dd55b99b1 ("arm64: Introduce Allwinner SoC config option")
> Cc: Andre Przywara <andre.przywara@....com>
> Signed-off-by: Suzuki K Poulose <suzuki.poulose@....com>

Acked-by: Andre Przywara <andre.przywara@....com>

Cheers,
Andre.


> ---
>  arch/arm64/Kconfig.platforms |    1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
> index efa77c1..521b1ec 100644
> --- a/arch/arm64/Kconfig.platforms
> +++ b/arch/arm64/Kconfig.platforms
> @@ -2,6 +2,7 @@ menu "Platform selection"
>  
>  config ARCH_SUNXI
>  	bool "Allwinner sunxi 64-bit SoC Family"
> +	select GENERIC_IRQ_CHIP
>  	help
>  	  This enables support for Allwinner sunxi based SoCs like the A64.
>  
>