From 02a6a1f9d77a816fbac01de9bfcd0e0914552f2f Mon Sep 17 00:00:00 2001 From: Huacai Chen Date: Wed, 22 Apr 2026 15:45:12 +0800 Subject: [PATCH] LoongArch: Make arch_irq_work_has_interrupt() true only if IPI HW exist After commit 7c405fb3279b3924 ("rcu: Use an intermediate irq_work to start process_srcu()"), Loongson-2K0300/2K0500 fail to boot. Because IRQ_WORK need IPI but Loongson-2K0300/2K0500 don't have IPI HW. So make arch_irq_work_has_interrupt() return true only if IPI HW exist. Cc: stable@vger.kernel.org Reported-by: Binbin Zhou Signed-off-by: Huacai Chen --- arch/loongarch/include/asm/irq_work.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/loongarch/include/asm/irq_work.h b/arch/loongarch/include/asm/irq_work.h index d63076e9160d..63aee0335d1a 100644 --- a/arch/loongarch/include/asm/irq_work.h +++ b/arch/loongarch/include/asm/irq_work.h @@ -4,7 +4,7 @@ static inline bool arch_irq_work_has_interrupt(void) { - return IS_ENABLED(CONFIG_SMP); + return IS_ENABLED(CONFIG_SMP) && cpu_opt(LOONGARCH_CPU_CSRIPI); } #endif /* _ASM_LOONGARCH_IRQ_WORK_H */