linux-kernel - Re: [PATCH] x86/perf/intel/rapl: Fix module name collision with powercap intel-rapl

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Message-ID: <20160706090404.GJ4329@intel.com>
Date:	Wed, 6 Jul 2016 12:04:04 +0300
From:	Ville Syrjälä <ville.syrjala@...ux.intel.com>
To:	linux-kernel@...r.kernel.org
Cc:	x86@...nel.org, Kan Liang <kan.liang@...el.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Jiri Olsa <jolsa@...hat.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Stephane Eranian <eranian@...gle.com>,
	Vince Weaver <vincent.weaver@...ne.edu>
Subject: Re: [PATCH] x86/perf/intel/rapl: Fix module name collision with
 powercap intel-rapl

On Thu, Jun 23, 2016 at 06:06:49PM +0300, ville.syrjala@...ux.intel.com wrote:
> From: Ville Syrjälä <ville.syrjala@...ux.intel.com>
> 
> Since commit 4b6e2571bf00 ("x86/perf/intel/rapl: Make the Intel RAPL PMU driver modular")
> the rapl perf module calls itself intel-rapl. That name was
> already in use by the rapl powercap driver, which now fails to
> load if the perf module is loaded. Fix the problem by renaming the
> perf module to intel-rapl-perf, so that both modules can coexist.

Ping?

> 
> Cc: Kan Liang <kan.liang@...el.com>
> Cc: Thomas Gleixner <tglx@...utronix.de>
> Cc: Alexander Shishkin <alexander.shishkin@...ux.intel.com>
> Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
> Cc: Jiri Olsa <jolsa@...hat.com>
> Cc: Linus Torvalds <torvalds@...ux-foundation.org>
> Cc: Peter Zijlstra <peterz@...radead.org>
> Cc: Stephane Eranian <eranian@...gle.com>
> Cc: Vince Weaver <vincent.weaver@...ne.edu>
> Fixes: 4b6e2571bf00 ("x86/perf/intel/rapl: Make the Intel RAPL PMU driver modular")
> Signed-off-by: Ville Syrjälä <ville.syrjala@...ux.intel.com>
> ---
>  arch/x86/events/intel/Makefile | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/x86/events/intel/Makefile b/arch/x86/events/intel/Makefile
> index 3660b2cf245a..06c2baa51814 100644
> --- a/arch/x86/events/intel/Makefile
> +++ b/arch/x86/events/intel/Makefile
> @@ -1,8 +1,8 @@
>  obj-$(CONFIG_CPU_SUP_INTEL)		+= core.o bts.o cqm.o
>  obj-$(CONFIG_CPU_SUP_INTEL)		+= ds.o knc.o
>  obj-$(CONFIG_CPU_SUP_INTEL)		+= lbr.o p4.o p6.o pt.o
> -obj-$(CONFIG_PERF_EVENTS_INTEL_RAPL)	+= intel-rapl.o
> -intel-rapl-objs				:= rapl.o
> +obj-$(CONFIG_PERF_EVENTS_INTEL_RAPL)	+= intel-rapl-perf.o
> +intel-rapl-perf-objs			:= rapl.o
>  obj-$(CONFIG_PERF_EVENTS_INTEL_UNCORE)	+= intel-uncore.o
>  intel-uncore-objs			:= uncore.o uncore_nhmex.o uncore_snb.o uncore_snbep.o
>  obj-$(CONFIG_PERF_EVENTS_INTEL_CSTATE)	+= intel-cstate.o
> -- 
> 2.7.4

-- 
Ville Syrjälä
Intel OTC