linux-kernel - Re: [PATCH net-next v2] selftests: iou-zcrx: Clean up build warnings for error format

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Message-ID: <1dcf5c8e-13c6-4969-90aa-a2b8d84050da@163.com>
Date: Sat, 3 May 2025 16:29:53 +0800
From: Haiyue Wang <haiyuewa@....com>
To: David Wei <dw@...idwei.uk>, netdev@...r.kernel.org
Cc: Andrew Lunn <andrew+netdev@...n.ch>, "David S. Miller"
 <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
 Shuah Khan <shuah@...nel.org>, Jens Axboe <axboe@...nel.dk>,
 Simon Horman <horms@...nel.org>,
 "open list:KERNEL SELFTEST FRAMEWORK" <linux-kselftest@...r.kernel.org>,
 open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH net-next v2] selftests: iou-zcrx: Clean up build warnings
 for error format

On 2025/5/3 11:24, David Wei wrote:
> On 5/2/25 10:50, Haiyue Wang wrote:
>> Clean up two build warnings:
>>
>> [1]
>>
>> iou-zcrx.c: In function ‘process_recvzc’:
>> iou-zcrx.c:263:37: warning: too many arguments for format [-Wformat- 
>> extra-args]
>>    263 |                         error(1, 0, "payload mismatch at ", i);
>>        |                                     ^~~~~~~~~~~~~~~~~~~~~~
>>
>> [2] Use "%zd" for ssize_t type as better
>>
>> iou-zcrx.c: In function ‘run_client’:
>> iou-zcrx.c:357:47: warning: format ‘%d’ expects argument of type 
>> ‘int’, but argument 4 has type ‘ssize_t’ {aka ‘long int’} [-Wformat=]
>>    357 |                         error(1, 0, "send(): %d", sent);
>>        |                                              ~^   ~~~~
>>        |                                               |   |
>>        |                                               int ssize_t 
>> {aka long int}
>>        |                                              %ld
>>
>> Signed-off-by: Haiyue Wang <haiyuewa@....com>
> 
>> ---
>> v2:
>>    - Dont't wrap the build warning message to make scripts/ 
>> checkpatch.pl happy,
>>      keep it as for readability.
>>    - Change the format for ssize_t from "%ld" to "%zd" as Simon 
>> suggested.
>>    - Change the target to net-next tree.
>> v1: https://lore.kernel.org/netdev/20250502042240.17371-1- 
>> haiyuewa@....com/
> 
> Thanks for the cleanups. But next time please note that there is a 24h
> cooldown on respins in netdev.

Will take care next time. Thanks, David.

> 
> Reviewed-by: David Wei <dw@...idwei.uk>