Hi, Yupeng, On Fri, Jun 10, 2022 at 9:20 AM Yupeng Li <liyupeng@xxxxxxxxxx> wrote: > > cpu_logical_map is only defined for CONFIG_SMP builds, when we are in an > UP configuration, the boot CPU is 0. Some kernel compilation error > information is as follows: > > CALL scripts/atomic/check-atomics.sh > CALL scripts/checksyscalls.sh > CHK include/generated/compile.h > CC drivers/irqchip/irq-loongson-liointc.o > drivers/irqchip/irq-loongson-liointc.c: In function 'liointc_chained_handle_irq': > drivers/irqchip/irq-loongson-liointc.c:60:13: error: implicit declaration of function 'cpu_logical_map' [-Werror=implicit-function-declaration] > int core = cpu_logical_map(smp_processor_id()) % LIOINTC_NUM_CORES; > ^~~~~~~~~~~~~~~ > cc1: some warnings being treated as errors > make[2]: *** [scripts/Makefile.build:249:drivers/irqchip/irq-loongson-liointc.o] error 1 > make[1]: *** [scripts/Makefile.build:466:drivers/irqchip] error 2 This has been fixed by Jiaxun: https://lore.kernel.org/lkml/20220609175242.977-1-jiaxun.yang@xxxxxxxxxxx/T/#t Huacai > > Acked-by: Caicai <caizp2008@xxxxxxx> > Signed-off-by: Yupeng Li <liyupeng@xxxxxxxxxx> > --- > drivers/irqchip/irq-loongson-liointc.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/irqchip/irq-loongson-liointc.c b/drivers/irqchip/irq-loongson-liointc.c > index aed88857d90f..927e236bf18e 100644 > --- a/drivers/irqchip/irq-loongson-liointc.c > +++ b/drivers/irqchip/irq-loongson-liointc.c > @@ -57,7 +57,11 @@ static void liointc_chained_handle_irq(struct irq_desc *desc) > struct liointc_handler_data *handler = irq_desc_get_handler_data(desc); > struct irq_chip *chip = irq_desc_get_chip(desc); > struct irq_chip_generic *gc = handler->priv->gc; > +#ifdef CONFIG_SMP > int core = cpu_logical_map(smp_processor_id()) % LIOINTC_NUM_CORES; > +#else > + int core = 0; > +#endif > u32 pending; > > chained_irq_enter(chip, desc); > -- > 2.34.1 >
