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Date: Wed, 5 Mar 2014 16:01:02 -0800 From: Cody P Schafer <cody@...ux.vnet.ibm.com> To: Linux PPC <linuxppc-dev@...ts.ozlabs.org>, Arnaldo Carvalho de Melo <acme@...stprotocols.net>, Ingo Molnar <mingo@...hat.com>, Paul Mackerras <paulus@...ba.org>, Peter Zijlstra <a.p.zijlstra@...llo.nl> Cc: LKML <linux-kernel@...r.kernel.org>, Benjamin Herrenschmidt <benh@...nel.crashing.org>, Michael Ellerman <michael@...erman.id.au>, scottwood@...escale.com, Peter Zijlstra <peterz@...radead.org>, Cody P Schafer <cody@...ux.vnet.ibm.com> Subject: [PATCH v4 03/11] perf: provide a common perf_event_nop_0() for use with .event_idx Rather an having every pmu that needs a function that just returns 0 for .event_idx define their own copy, reuse the one in kernel/events/core.c. Rename from perf_swevent_event_idx() because we're no longer using it for just software events. Naming is based on the perf_pmu_nop_*() functions. Signed-off-by: Cody P Schafer <cody@...ux.vnet.ibm.com> --- include/linux/perf_event.h | 1 + kernel/events/core.c | 10 +++++----- 2 files changed, 6 insertions(+), 5 deletions(-) diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 5c12009..23da668 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -560,6 +560,7 @@ extern void perf_pmu_migrate_context(struct pmu *pmu, extern u64 perf_event_read_value(struct perf_event *event, u64 *enabled, u64 *running); +extern int perf_event_nop_0(struct perf_event *event); struct perf_sample_data { u64 type; diff --git a/kernel/events/core.c b/kernel/events/core.c index fa0b2d4..16bf7c2 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -5816,7 +5816,7 @@ static int perf_swevent_init(struct perf_event *event) return 0; } -static int perf_swevent_event_idx(struct perf_event *event) +int perf_event_nop_0(struct perf_event *event) { return 0; } @@ -5831,7 +5831,7 @@ static struct pmu perf_swevent = { .stop = perf_swevent_stop, .read = perf_swevent_read, - .event_idx = perf_swevent_event_idx, + .event_idx = perf_event_nop_0, }; #ifdef CONFIG_EVENT_TRACING @@ -5950,7 +5950,7 @@ static struct pmu perf_tracepoint = { .stop = perf_swevent_stop, .read = perf_swevent_read, - .event_idx = perf_swevent_event_idx, + .event_idx = perf_event_nop_0, }; static inline void perf_tp_register(void) @@ -6177,7 +6177,7 @@ static struct pmu perf_cpu_clock = { .stop = cpu_clock_event_stop, .read = cpu_clock_event_read, - .event_idx = perf_swevent_event_idx, + .event_idx = perf_event_nop_0, }; /* @@ -6257,7 +6257,7 @@ static struct pmu perf_task_clock = { .stop = task_clock_event_stop, .read = task_clock_event_read, - .event_idx = perf_swevent_event_idx, + .event_idx = perf_event_nop_0, }; static void perf_pmu_nop_void(struct pmu *pmu) -- 1.9.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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