linux-kernel - Re: [RFC PATCH 06/10] perf/core: Export AUX buffer helpers to modules

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Message-ID: <20170104101507.GG25813@worktop.programming.kicks-ass.net>
Date:   Wed, 4 Jan 2017 11:15:07 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Will Deacon <will.deacon@....com>
Cc:     linux-arm-kernel@...ts.infradead.org, marc.zyngier@....com,
        mark.rutland@....com, kim.phillips@....com, alex.bennee@...aro.org,
        christoffer.dall@...aro.org, tglx@...utronix.de,
        alexander.shishkin@...ux.intel.com, robh@...nel.org,
        suzuki.poulose@....com, pawel.moll@....com,
        mathieu.poirier@...aro.org, mingo@...hat.com,
        linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH 06/10] perf/core: Export AUX buffer helpers to modules

On Tue, Jan 03, 2017 at 06:10:23PM +0000, Will Deacon wrote:
> +EXPORT_SYMBOL(perf_aux_output_begin);
> +EXPORT_SYMBOL(perf_aux_output_end);
> +EXPORT_SYMBOL(perf_aux_output_skip);
> +EXPORT_SYMBOL(perf_get_aux);


$ git grep EXPORT kernel/events/
kernel/events/core.c:EXPORT_SYMBOL_GPL(perf_event_disable);
kernel/events/core.c:EXPORT_SYMBOL_GPL(perf_event_enable);
kernel/events/core.c:EXPORT_SYMBOL_GPL(perf_event_addr_filters_sync);
kernel/events/core.c:EXPORT_SYMBOL_GPL(perf_event_refresh);
kernel/events/core.c:EXPORT_SYMBOL_GPL(perf_event_release_kernel);
kernel/events/core.c:EXPORT_SYMBOL_GPL(perf_event_read_value);
kernel/events/core.c:EXPORT_SYMBOL_GPL(perf_register_guest_info_callbacks);
kernel/events/core.c:EXPORT_SYMBOL_GPL(perf_unregister_guest_info_callbacks);
kernel/events/core.c:EXPORT_SYMBOL_GPL(perf_swevent_get_recursion_context);
kernel/events/core.c:EXPORT_SYMBOL_GPL(perf_trace_run_bpf_submit);
kernel/events/core.c:EXPORT_SYMBOL_GPL(perf_tp_event);
kernel/events/core.c:EXPORT_SYMBOL_GPL(perf_pmu_register);
kernel/events/core.c:EXPORT_SYMBOL_GPL(perf_pmu_unregister);
kernel/events/core.c:EXPORT_SYMBOL_GPL(perf_event_create_kernel_counter);
kernel/events/core.c:EXPORT_SYMBOL_GPL(perf_pmu_migrate_context);
kernel/events/core.c:EXPORT_SYMBOL_GPL(perf_event_sysfs_show);
kernel/events/hw_breakpoint.c:EXPORT_SYMBOL_GPL(register_user_hw_breakpoint);
kernel/events/hw_breakpoint.c:EXPORT_SYMBOL_GPL(modify_user_hw_breakpoint);
kernel/events/hw_breakpoint.c:EXPORT_SYMBOL_GPL(unregister_hw_breakpoint);
kernel/events/hw_breakpoint.c:EXPORT_SYMBOL_GPL(register_wide_hw_breakpoint);
kernel/events/hw_breakpoint.c:EXPORT_SYMBOL_GPL(unregister_wide_hw_breakpoint);
kernel/events/uprobes.c:EXPORT_SYMBOL_GPL(uprobe_register);
kernel/events/uprobes.c:EXPORT_SYMBOL_GPL(uprobe_unregister);

I see a distinct difference here... :-)