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

From: Peter Zijlstra
Date: Thu Nov 17 2022 - 03:18:41 EST


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@xxxxxxxxx

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