On 07/31/2017 05:59 PM, Palmer Dabbelt wrote:
> This patch adds a driver that manages the local interrupts on each
> RISC-V hart, as specifiec by the RISC-V supervisor level ISA manual.
> The local interrupt controller manages software interrupts, timer
> interrupts, and hardware interrupts (which are routed via the
> platform level interrupt controller). Per-hart local interrupt
> controllers are found on all RISC-V systems.
>
> Signed-off-by: Palmer Dabbelt <palmer@xxxxxxxxxxx>
> ---
> drivers/irqchip/Kconfig | 14 +++
> drivers/irqchip/Makefile | 1 +
> drivers/irqchip/irq-riscv-intc.c | 213 +++++++++++++++++++++++++++++++++++++++
> 3 files changed, 228 insertions(+)
> create mode 100644 drivers/irqchip/irq-riscv-intc.c
> diff --git a/drivers/irqchip/irq-riscv-intc.c b/drivers/irqchip/irq-riscv-intc.c
> new file mode 100644
> index 000000000000..96ae020cf1d5
> --- /dev/null
> +++ b/drivers/irqchip/irq-riscv-intc.c
> @@ -0,0 +1,213 @@
> +/*
[]
> +
> +error_add_linear:
> + pr_warning("%s: unable to add IRQ domain\n",
> + data->name);
> + return -(ENXIO);
> +
Why the parentheses around ENXIO? Is it some macro calculation?
Otherwise just use
return -ENXIO;
and drop the following blank line.
> +}
> +
> +IRQCHIP_DECLARE(riscv, "riscv,cpu-intc", riscv_intc_init);
>
--
~Randy
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