linux-kernel - [PATCH] ARM: OMAP1: select CONFIG_GENERIC_IRQ

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Message-Id: <20250205121151.289535-1-arnd@kernel.org>
Date: Wed,  5 Feb 2025 13:11:33 +0100
From: Arnd Bergmann <arnd@...nel.org>
To: Aaro Koskinen <aaro.koskinen@....fi>,
	Janusz Krzysztofik <jmkrzyszt@...il.com>
Cc: soc@...nel.org,
	Arnd Bergmann <arnd@...db.de>,
	Tony Lindgren <tony@...mide.com>,
	Masahiro Yamada <masahiroy@...nel.org>,
	linux-arm-kernel@...ts.infradead.org,
	linux-omap@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] ARM: OMAP1: select CONFIG_GENERIC_IRQ_CHIP

From: Arnd Bergmann <arnd@...db.de>

When GENERIC_IRQ_CHIP is disabled, OMAP1 kernels fail to link:

arm-linux-gnueabi-ld: arch/arm/mach-omap1/irq.o: in function `omap1_init_irq':
irq.c:(.init.text+0x1e8): undefined reference to `irq_alloc_generic_chip'
arm-linux-gnueabi-ld: irq.c:(.init.text+0x228): undefined reference to `irq_setup_generic_chip'
arm-linux-gnueabi-ld: irq.c:(.init.text+0x2a8): undefined reference to `irq_gc_set_wake'
arm-linux-gnueabi-ld: irq.c:(.init.text+0x2b0): undefined reference to `irq_gc_mask_set_bit'
arm-linux-gnueabi-ld: irq.c:(.init.text+0x2b4): undefined reference to `irq_gc_mask_clr_bit'

This has apparently been the case for many years, but I never caught it
in randconfig builds until now, as there are dozens of other drivers
that also 'select GENERIC_IRQ_CHIP' and statistically there is almost
always one of them enabled.

Fixes: 55b447744389 ("ARM: OMAP1: Switch to use generic irqchip in preparation for sparse IRQ")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 arch/arm/mach-omap1/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-omap1/Kconfig b/arch/arm/mach-omap1/Kconfig
index a643b71e30a3..08ec6bd84ada 100644
--- a/arch/arm/mach-omap1/Kconfig
+++ b/arch/arm/mach-omap1/Kconfig
@@ -8,6 +8,7 @@ menuconfig ARCH_OMAP1
 	select ARCH_OMAP
 	select CLKSRC_MMIO
 	select FORCE_PCI if PCCARD
+	select GENERIC_IRQ_CHIP
 	select GPIOLIB
 	help
 	  Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
-- 
2.39.5