linux-kernel - Re: [tip:perf/core] BUILD SUCCESS WITH WARNING e8d7a90c08ce963c592fb49845f2ccc606a2ac21

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Message-ID: <Y3XuSNJseSRckyHn@hirez.programming.kicks-ass.net>
Date:   Thu, 17 Nov 2022 09:18:16 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Ravi Bangoria <ravi.bangoria@....com>
Cc:     x86-ml <x86@...nel.org>, linux-kernel@...r.kernel.org,
        kernel test robot <lkp@...el.com>
Subject: Re: [tip:perf/core] BUILD SUCCESS WITH WARNING
 e8d7a90c08ce963c592fb49845f2ccc606a2ac21

On Thu, Nov 17, 2022 at 09:26:49AM +0530, Ravi Bangoria wrote:
> Hi Peter,
> 
> >> kernel/events/core.c:11274:4: warning: cast from 'int (*)(struct perf_cpu_pmu_context *)' to 'remote_function_f' (aka 'int (*)(void *)') converts to incompatible function type [-Wcast-function-type-strict]
> >>
> >> Warning ids grouped by kconfigs:
> >>
> >> clang_recent_errors
> >> |-- hexagon-randconfig-r001-20221116
> >> |   `-- kernel-events-core.c:warning:cast-from-int-(-)(struct-perf_cpu_pmu_context-)-to-remote_function_f-(aka-int-(-)(void-)-)-converts-to-incompatible-function-type
> >> |-- hexagon-randconfig-r005-20221116
> >> |   `-- kernel-events-core.c:warning:cast-from-int-(-)(struct-perf_cpu_pmu_context-)-to-remote_function_f-(aka-int-(-)(void-)-)-converts-to-incompatible-function-type
> >> `-- s390-randconfig-r012-20221116
> >>     `-- kernel-events-core.c:warning:cast-from-int-(-)(struct-perf_cpu_pmu_context-)-to-remote_function_f-(aka-int-(-)(void-)-)-converts-to-incompatible-function-type
> > 
> > Robot guys; why don't I have a report of this warning?
> 
> https://lore.kernel.org/all/202211041643.J58xvn1k-lkp@intel.com

Hurgh, clearly I can't even search :/

> I'll prepare and post a fix.

Already did that last night:

  https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/commit/?h=perf/core&id=3aed27110419792e8e26ba3aed1dd9462975cc6e