Re: [PATCH v2 3/8] RISC-V: Remove NR_CPUs check during hartid search from DT

Anup Patel
2019-01-08T11:48:39Z

On Tue, Jan 8, 2019 at 3:08 PM Atish Patra <atish.patra@wdc.com> wrote:
>
> In non-smp configuration, hartid can be higher that NR_CPUS.
> riscv_of_processor_hartid should not be compared to hartid to
> NR_CPUS in that case. Moreover, this function checks all the
> DT properties of a hart node. NR_CPUS comparison seems out of
> place.
>
> Signed-off-by: Atish Patra <atish.patra@wdc.com>
> ---
> arch/riscv/kernel/cpu.c | 4 ----
> 1 file changed, 4 deletions(-)
>
> diff --git a/arch/riscv/kernel/cpu.c b/arch/riscv/kernel/cpu.c
> index f8fa2c63..19edaeae 100644
> --- a/arch/riscv/kernel/cpu.c
> +++ b/arch/riscv/kernel/cpu.c
> @@ -34,10 +34,6 @@ int riscv_of_processor_hartid(struct device_node *node)
> pr_warn("Found CPU without hart ID\n");
> return -(ENODEV);
> }
> - if (hart >= NR_CPUS) {
> - pr_info("Found hart ID %d, which is above NR_CPUs. Disabling this hart\n", hart);
> - return -(ENODEV);
> - }
>
> if (of_property_read_string(node, "status", &status)) {
> pr_warn("CPU with hartid=%d has no \"status\" property\n", hart);
> --
> 2.7.4
>

Looks good to me.

Reviewed-by: Anup Patel <anup@brainfault.org>

Regards,
Anup