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

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Date:   Fri, 18 Mar 2022 09:33:00 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Guo Zhengkui <guozhengkui@...o.com>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Paolo Abeni <pabeni@...hat.com>, Shuah Khan <shuah@...nel.org>,
        netdev@...r.kernel.org (open list:NETWORKING [GENERAL]),
        linux-kselftest@...r.kernel.org (open list:KERNEL SELFTEST FRAMEWORK),
        linux-kernel@...r.kernel.org (open list),
        zhengkui_guo@...look.com
Subject: Re: [PATCH linux-next v2] selftests: net: change fprintf format
 specifiers

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.