netdev - Re: [PATCH linux-next v2] selftests: net: change fprintf format specifiers

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Date:   Sat, 19 Mar 2022 15:09:02 +0800
From:   Guo Zhengkui <guozhengkui@...o.com>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Paolo Abeni <pabeni@...hat.com>, Shuah Khan <shuah@...nel.org>,
        "open list:NETWORKING [GENERAL]" <netdev@...r.kernel.org>,
        "open list:KERNEL SELFTEST FRAMEWORK" 
        <linux-kselftest@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>,
        "zhengkui_guo@...look.com" <zhengkui_guo@...look.com>
Subject: Re: [PATCH linux-next v2] selftests: net: change fprintf format
 specifiers

On 2022/3/19 0:33, Jakub Kicinski wrote:
> On Fri, 18 Mar 2022 15:50:13 +0800 Guo Zhengkui wrote:
>> `cur64`, `start64` and `ts_delta` are int64_t. Change
>> format specifiers in fprintf from '%lu' to '%ld'.
>>
>> It has been tested with gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
>> on x86_64.
> 
> No, not like that. Please read up on printing int64_t.

Sorry for misunderstanding. I wrongly thought that it's just for 64-bit.

So I should use `PRId64`.

Zhengkui