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From: Greentime Hu <green.hu@gmail.com>
Date: Fri, 20 Apr 2018 20:01:56 +0800
Message-ID: <CAEbi=3dYaax4bpuzDxMQwnM78yN3uzFOHK-dVUuWxu6WRJO+PQ@mail.gmail.com>
Subject: Re: [PATCH 6/9] nds32: Fix the symbols undefined issue by exporting them.
To: Christoph Hellwig <hch@infradead.org>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Arnd Bergmann <arnd@arndb.de>, Greentime <greentime@andestech.com>,
        Guenter Roeck <private@roeck-us.net>
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2018-04-20 18:41 GMT+08:00 Christoph Hellwig <hch@infradead.org>:
>> +++ b/arch/nds32/kernel/stacktrace.c
>> @@ -9,6 +9,7 @@ void save_stack_trace(struct stack_trace *trace)
>>  {
>>       save_stack_trace_tsk(current, trace);
>>  }
>> +EXPORT_SYMBOL(save_stack_trace);
>
> All other architectures use EXPORT_SYMBOL_GPL here.

Thank you.
I will update it and other architectures also export save_stack_trace_tsk.
I will export it too.