linux-kernel - Re: [PATCH v2] sunxi-irq: Fix Kconfig dependency on GENERIC_IRQ

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Date:	Wed, 13 Apr 2016 17:18:11 +0100
From:	Marc Zyngier <marc.zyngier@....com>
To:	Suzuki K Poulose <suzuki.poulose@....com>,
	linux-arm-kernel@...ts.infradead.org
Cc:	linux-kernel@...r.kernel.org, arm@...nel.org, robh@...nel.org,
	Andre Przywara <andre.przywara@....com>,
	Russell King <linux@....linux.org.uk>,
	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	Chen-Yu Tsai <wens@...e.org>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Jason Cooper <jason@...edaemon.net>
Subject: Re: [PATCH v2] sunxi-irq: Fix Kconfig dependency on GENERIC_IRQ_CHIP

On 13/04/16 16:59, Suzuki K Poulose wrote:
> The sunxi-nmi and sun4i irq chips are selected by ARCH_SUNXI on both arm
> and arm64 (recently added). However on arm64, we don't explicitly select
> GENERIC_IRQ_CHIP which is required by the sunxi-nmi irq chip driver and
> causes build breaks on 4.6-rc1 :
> 
>   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'
> 
> This patch fixes the dependency by introducing a separate Kconfig
> symbol for sunxi irqchips which does the proper dependency selections.
> 
> Build tested on arm and arm64.
> 
> Fixes: commit ce3dd55b99b1 ("arm64: Introduce Allwinner SoC config option")
> Suggested-by: Olof Johansson <olof@...om.net>
> Cc: Andre Przywara <andre.przywara@....com>
> Cc: Russell King <linux@....linux.org.uk>
> Cc: Maxime Ripard <maxime.ripard@...e-electrons.com>
> Cc: Chen-Yu Tsai <wens@...e.org>
> Cc: Catalin Marinas <catalin.marinas@....com>
> Cc: Will Deacon <will.deacon@....com>
> Cc: Thomas Gleixner <tglx@...utronix.de>
> Cc: Jason Cooper <jason@...edaemon.net>
> Cc: Marc Zyngier <marc.zyngier@....com>
> Signed-off-by: Suzuki K Poulose <suzuki.poulose@....com>

Acked-by: Marc Zyngier <marc.zyngier@....com>

	M.
-- 
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