lkml.org 
[lkml]   [2021]   [Aug]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH] trace: eradicate noisy warning in trace_osnoise.c
From
Date
On 7/31/21 3:11 AM, Randy Dunlap wrote:
> On 7/30/21 5:40 PM, Steven Rostedt wrote:
>> On Fri, 30 Jul 2021 17:00:55 -0700
>> Randy Dunlap <rdunlap@infradead.org> wrote:
>>
>>> OK, I'm officially tired of this noise warning coming from
>>> trace_osnoise.c, so shut it up. Also, adding new warnings is not OK.
>> I agree adding "new warnings" is not OK, but this is a stupid warning.
>>
>>> ../kernel/trace/trace_osnoise.c: In function ‘start_kthread’:
>>> ../kernel/trace/trace_osnoise.c:1461:8: warning: ‘main’ is usually a function [-Wmain]
>>> void *main = osnoise_main;
>>> ^~~~
>>>
>>> Fixes: c8895e271f79 ("trace/osnoise: Support hotplug operations")
>>> Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
>>> Suggested-by: Matthew Wilcox <willy@infradead.org>
>>> Cc: Steven Rostedt <rostedt@goodmis.org>
>>> Cc: Ingo Molnar <mingo@redhat.com>
>>> Cc: Daniel Bristot de Oliveira <bristot@redhat.com>
>>> ---
>>> kernel/trace/Makefile | 2 ++
>>> 1 file changed, 2 insertions(+)
>>>
>>> --- mmotm-2021-0728-1824.orig/kernel/trace/Makefile
>>> +++ mmotm-2021-0728-1824/kernel/trace/Makefile
>>> @@ -36,6 +36,8 @@ CFLAGS_bpf_trace.o := -I$(src)
>>> CFLAGS_trace_benchmark.o := -I$(src)
>>> CFLAGS_trace_events_filter.o := -I$(src)
>>>
>>> +CFLAGS_trace_osnoise.o := -Wno-main
>> Why just add it here. It's a silly warning to have for the kernel at
>> all. Should this not be added in a more global place?
> I don't know of any other places that name something 'main' when it is
> not a main() function.
>

I would say that we either use -Wno-main for the entire kernel or rename the
main variable to tracer_main....

-- Daniel

\
 
 \ /
  Last update: 2021-08-02 09:58    [W:0.065 / U:0.708 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site