Re: [PATCH -next] arm64: Export __cpu_logical_map

Anshuman Khandual
2020-07-24T08:18:25Z

On 07/24/2020 08:38 AM, Kefeng Wang wrote:
> +maillist

This does not seem to be a correct method of posting any patch.

>
> On 2020/7/24 11:04, Kefeng Wang wrote:
>> ERROR: modpost: "__cpu_logical_map" [drivers/cpufreq/tegra194-cpufreq.ko] undefined!

>>
>> ARM64 tegra194-cpufreq driver use cpu_logical_map, export
>> __cpu_logical_map to fix build issue.

Commit 887d5fc82cb4 ("cpufreq: Add Tegra194 cpufreq driver") which adds
this particular driver is present just on linux-next. But as expected,
the driver does not use __cpu_logical_map directly but instead accesses
it via cpu_logical_map() wrapper. Wondering, how did you even trigger
the modpost error ?

>>
>> Reported-by: Hulk Robot <hulkci@huawei.com>
>> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
>> ---
>>   arch/arm64/kernel/setup.c | 1 +
>>   1 file changed, 1 insertion(+)
>>
>> diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
>> index c793276ec7ad9..3aea05fbb9998 100644
>> --- a/arch/arm64/kernel/setup.c
>> +++ b/arch/arm64/kernel/setup.c
>> @@ -275,6 +275,7 @@ static int __init reserve_memblock_reserved_regions(void)
>>   arch_initcall(reserve_memblock_reserved_regions);
>>     u64 __cpu_logical_map[NR_CPUS] = { [0 ... NR_CPUS-1] = INVALID_HWID };
>> +EXPORT_SYMBOL(__cpu_logical_map);
>>     void __init setup_arch(char **cmdline_p)
>>   {
>
>
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