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Date: Thu, 6 Aug 2020 10:40:34 +0800 From: Leo Yan <leo.yan@...aro.org> To: Arnaldo Carvalho de Melo <acme@...nel.org>, Jiri Olsa <jolsa@...hat.com>, Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, Mark Rutland <mark.rutland@....com>, Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Namhyung Kim <namhyung@...nel.org>, Nick Desaulniers <ndesaulniers@...gle.com>, "Naveen N. Rao" <naveen.n.rao@...ux.vnet.ibm.com>, Ian Rogers <irogers@...gle.com>, Kemeng Shi <shikemeng@...wei.com>, James Clark <james.clark@....com>, Wei Li <liwei391@...wei.com>, Adrian Hunter <adrian.hunter@...el.com>, Al Grant <Al.Grant@....com>, linux-kernel@...r.kernel.org Cc: Leo Yan <leo.yan@...aro.org> Subject: [PATCH v1 04/11] perf mem: Only initialize memory event for recording It's needless to initialize memory events for perf reporting, so only initialize memory event for perf recording. This change allows to parse perf data on cross platforms, e.g. perf tool can output reports even the machine doesn't enable any memory events. Signed-off-by: Leo Yan <leo.yan@...aro.org> --- tools/perf/builtin-mem.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/tools/perf/builtin-mem.c b/tools/perf/builtin-mem.c index bd4229ca3685..a7204634893c 100644 --- a/tools/perf/builtin-mem.c +++ b/tools/perf/builtin-mem.c @@ -78,6 +78,11 @@ static int __cmd_record(int argc, const char **argv, struct perf_mem *mem) OPT_END() }; + if (perf_mem_events__init()) { + pr_err("failed: memory events not supported\n"); + return -1; + } + argc = parse_options(argc, argv, options, record_mem_usage, PARSE_OPT_KEEP_UNKNOWN); @@ -436,11 +441,6 @@ int cmd_mem(int argc, const char **argv) NULL }; - if (perf_mem_events__init()) { - pr_err("failed: memory events not supported\n"); - return -1; - } - argc = parse_options_subcommand(argc, argv, mem_options, mem_subcommands, mem_usage, PARSE_OPT_KEEP_UNKNOWN); -- 2.17.1
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