linux-kernel - Re: [PATCH -next] trace: wwnr: Make local symbol 'rv

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Date:   Wed, 24 Aug 2022 09:25:00 +0800
From:   Zeng Heng <zengheng4@...wei.com>
To:     Daniel Bristot de Oliveira <bristot@...nel.org>
CC:     <linux-kernel@...r.kernel.org>, <rostedt@...dmis.org>,
        <mingo@...hat.com>
Subject: Re: [PATCH -next] trace: wwnr: Make local symbol 'rv_wwnr' static

Got it, it's pleasure. And I will re-send the below patch series ASAP.


B.R.,

Zeng Heng


在 2022/8/23 22:05, Daniel Bristot de Oliveira 写道:
> On 8/22/22 08:30, Zeng Heng wrote:
>> The sparse tool complains as follows:
>>
>> kernel/trace/rv/monitors/wwnr/wwnr.c:18:19:
>> warning: symbol 'rv_wwnr' was not declared. Should it be static?
>>
>> The `rv_wwnr` symbol is not dereferenced by other exter files,
>> so add static qualifier for it.
> Would you mind re-sending this patch with some changes?
>
> - Use "rv/monitors:" as the subsystem
> - Do the same change for wip monitor
> - Add the fixes tags:
>    Fixes:	ccc319dcb450 ("rv/monitor: Add the wwnr monitor")
>    Fixes:	8812d21219b9 ("rv/monitor: Add the wip monitor skeleton created by dot2k")
>
> Also, to fix this problem for new monitors, do another patch changing the dot2k
> templates files, adding the same 'static' attribute. The files are:
>
> - tools/verification/dot2/dot2k_templates/main_global.c
> - tools/verification/dot2/dot2k_templates/main_per_cpu.c
> - tools/verification/dot2/dot2k_templates/main_per_task.c
>
> In this second patch, add the subsystem as "rv/dot2k" and the following tags:
>
>    Fixes:	24bce201d798 ("tools/rv: Add dot2k")
>    Suggested-by: Daniel Bristot de Oliveira <bristot@...nel.org>
>
> Thanks!
> -- Daniel
>
>
>> Signed-off-by: Zeng Heng <zengheng4@...wei.com>
>> ---
>>   kernel/trace/rv/monitors/wwnr/wwnr.c | 4 ++--
>>   1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/kernel/trace/rv/monitors/wwnr/wwnr.c b/kernel/trace/rv/monitors/wwnr/wwnr.c
>> index 599225d9cf38..a063b93c6a1d 100644
>> --- a/kernel/trace/rv/monitors/wwnr/wwnr.c
>> +++ b/kernel/trace/rv/monitors/wwnr/wwnr.c
>> @@ -15,7 +15,7 @@
>>   
>>   #include "wwnr.h"
>>   
>> -struct rv_monitor rv_wwnr;
>> +static struct rv_monitor rv_wwnr;
>>   DECLARE_DA_MON_PER_TASK(wwnr, unsigned char);
>>   
>>   static void handle_switch(void *data, bool preempt, struct task_struct *p,
>> @@ -59,7 +59,7 @@ static void disable_wwnr(void)
>>   	da_monitor_destroy_wwnr();
>>   }
>>   
>> -struct rv_monitor rv_wwnr = {
>> +static struct rv_monitor rv_wwnr = {
>>   	.name = "wwnr",
>>   	.description = "wakeup while not running per-task testing model.",
>>   	.enable = enable_wwnr,