linux-kernel - Re: [External] Re: [PATCH v2 2/2] perf evsel: Use evsel__name

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Date: Wed, 3 Apr 2024 15:45:12 +0800
From: Yang Jihong <yangjihong@...edance.com>
To: Arnaldo Carvalho de Melo <acme@...nel.org>
Cc: peterz@...radead.org, mingo@...hat.com, namhyung@...nel.org,
 mark.rutland@....com, alexander.shishkin@...ux.intel.com, jolsa@...nel.org,
 irogers@...gle.com, adrian.hunter@...el.com, kan.liang@...ux.intel.com,
 james.clark@....com, linux-perf-users@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [External] Re: [PATCH v2 2/2] perf evsel: Use evsel__name_is()
 helper

Hello,

On 4/3/24 05:07, Arnaldo Carvalho de Melo wrote:
> On Mon, Apr 01, 2024 at 02:27:24PM +0800, Yang Jihong wrote:
>> Code cleanup, replace strcmp(evsel__name(evsel, {NAME})) with
>> evsel__name_is() helper.
>>
>> No functional change.
> 
> Well, its not building:
> 
> builtin-trace.c: In function ‘cmd_trace’:
> builtin-trace.c:4919:90: error: macro "assert" passed 2 arguments, but takes just 1
>   4919 |         assert(evsel__name_is(trace.syscalls.events.bpf_output), "__augmented_syscalls__");
>        |                                                                                          ^
> In file included from /home/acme/git/perf-tools-next/tools/include/linux/kernel.h:7,
>                   from /home/acme/git/perf-tools-next/tools/include/linux/refcount.h:42,
>                   from util/cgroup.h:6,
>                   from builtin-trace.c:29:
> /usr/include/assert.h:50: note: macro "assert" defined here
> 
> I'll fix it, but please test build things next time.

Sorry. I compiled it in a new environment before. This environment does 
not support bpf skel, and the modified part of the code is included in 
HAVE_BPF_SKEL, so I did not find this problem when I compiled it in my 
environment.


Thanks for the correction. will confirm whether the modified code is 
actually compiled next time.


Thanks,
Yang