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Subject[tip:perf/core] perf pmu: Remove set_drv_config API
Commit-ID:  159b0da50adb021fe452d849fb73b408f21de3f8
Gitweb: https://git.kernel.org/tip/159b0da50adb021fe452d849fb73b408f21de3f8
Author: Mathieu Poirier <mathieu.poirier@linaro.org>
AuthorDate: Thu, 31 Jan 2019 11:47:14 -0700
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Wed, 6 Feb 2019 10:00:39 -0300

perf pmu: Remove set_drv_config API

CoreSight was the only client of the PMU's set_drv_config() API. Now
that it is no longer needed by CoreSight remove it from the code base.

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Acked-by: Suzuki K Poulouse <suzuki.poulose@arm.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-s390@vger.kernel.org
Link: http://lkml.kernel.org/r/20190131184714.20388-8-mathieu.poirier@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-record.c | 10 ------
tools/perf/builtin-stat.c | 9 -----
tools/perf/builtin-top.c | 13 --------
tools/perf/util/Build | 1 -
tools/perf/util/drv_configs.c | 78 -------------------------------------------
tools/perf/util/drv_configs.h | 26 ---------------
tools/perf/util/pmu.h | 1 -
7 files changed, 138 deletions(-)

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 88ea11d57c6f..56e9d9e8c174 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -23,7 +23,6 @@
#include "util/evlist.h"
#include "util/evsel.h"
#include "util/debug.h"
-#include "util/drv_configs.h"
#include "util/session.h"
#include "util/tool.h"
#include "util/symbol.h"
@@ -567,7 +566,6 @@ static int record__open(struct record *rec)
struct perf_evlist *evlist = rec->evlist;
struct perf_session *session = rec->session;
struct record_opts *opts = &rec->opts;
- struct perf_evsel_config_term *err_term;
int rc = 0;

/*
@@ -620,14 +618,6 @@ try_again:
goto out;
}

- if (perf_evlist__apply_drv_configs(evlist, &pos, &err_term)) {
- pr_err("failed to set config \"%s\" on event %s with %d (%s)\n",
- err_term->val.drv_cfg, perf_evsel__name(pos), errno,
- str_error_r(errno, msg, sizeof(msg)));
- rc = -1;
- goto out;
- }
-
rc = record__mmap(rec);
if (rc)
goto out;
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index e587808591e8..bb24f9c17f9a 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -52,7 +52,6 @@
#include "util/evlist.h"
#include "util/evsel.h"
#include "util/debug.h"
-#include "util/drv_configs.h"
#include "util/color.h"
#include "util/stat.h"
#include "util/header.h"
@@ -417,7 +416,6 @@ static int __run_perf_stat(int argc, const char **argv, int run_idx)
int status = 0;
const bool forks = (argc > 0);
bool is_pipe = STAT_RECORD ? perf_stat.data.is_pipe : false;
- struct perf_evsel_config_term *err_term;

if (interval) {
ts.tv_sec = interval / USEC_PER_MSEC;
@@ -514,13 +512,6 @@ try_again:
return -1;
}

- if (perf_evlist__apply_drv_configs(evsel_list, &counter, &err_term)) {
- pr_err("failed to set config \"%s\" on event %s with %d (%s)\n",
- err_term->val.drv_cfg, perf_evsel__name(counter), errno,
- str_error_r(errno, msg, sizeof(msg)));
- return -1;
- }
-
if (STAT_RECORD) {
int err, fd = perf_data__fd(&perf_stat.data);

diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 619406339e4b..231a90daa958 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -25,7 +25,6 @@
#include "util/bpf-event.h"
#include "util/config.h"
#include "util/color.h"
-#include "util/drv_configs.h"
#include "util/evlist.h"
#include "util/evsel.h"
#include "util/event.h"
@@ -1186,10 +1185,6 @@ static void init_process_thread(struct perf_top *top)

static int __cmd_top(struct perf_top *top)
{
- char msg[512];
- struct perf_evsel *pos;
- struct perf_evsel_config_term *err_term;
- struct perf_evlist *evlist = top->evlist;
struct record_opts *opts = &top->record_opts;
pthread_t thread, thread_process;
int ret;
@@ -1240,14 +1235,6 @@ static int __cmd_top(struct perf_top *top)
if (ret)
goto out_delete;

- ret = perf_evlist__apply_drv_configs(evlist, &pos, &err_term);
- if (ret) {
- pr_err("failed to set config \"%s\" on event %s with %d (%s)\n",
- err_term->val.drv_cfg, perf_evsel__name(pos), errno,
- str_error_r(errno, msg, sizeof(msg)));
- goto out_delete;
- }
-
top->session->evlist = top->evlist;
perf_session__set_id_hdr_size(top->session);

diff --git a/tools/perf/util/Build b/tools/perf/util/Build
index b69d6294c88c..a36e6e5a6f4f 100644
--- a/tools/perf/util/Build
+++ b/tools/perf/util/Build
@@ -107,7 +107,6 @@ libperf-y += term.o
libperf-y += help-unknown-cmd.o
libperf-y += mem-events.o
libperf-y += vsprintf.o
-libperf-y += drv_configs.o
libperf-y += units.o
libperf-y += time-utils.o
libperf-y += expr-bison.o
diff --git a/tools/perf/util/drv_configs.c b/tools/perf/util/drv_configs.c
deleted file mode 100644
index eec754243f4d..000000000000
--- a/tools/perf/util/drv_configs.c
+++ /dev/null
@@ -1,78 +0,0 @@
-/*
- * drv_configs.h: Interface to apply PMU specific configuration
- * Copyright (c) 2016-2018, Linaro Ltd.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- */
-
-#include "drv_configs.h"
-#include "evlist.h"
-#include "evsel.h"
-#include "pmu.h"
-#include <errno.h>
-
-static int
-perf_evsel__apply_drv_configs(struct perf_evsel *evsel,
- struct perf_evsel_config_term **err_term)
-{
- bool found = false;
- int err = 0;
- struct perf_evsel_config_term *term;
- struct perf_pmu *pmu = NULL;
-
- while ((pmu = perf_pmu__scan(pmu)) != NULL)
- if (pmu->type == evsel->attr.type) {
- found = true;
- break;
- }
-
- list_for_each_entry(term, &evsel->config_terms, list) {
- if (term->type != PERF_EVSEL__CONFIG_TERM_DRV_CFG)
- continue;
-
- /*
- * We have a configuration term, report an error if we
- * can't find the PMU or if the PMU driver doesn't support
- * cmd line driver configuration.
- */
- if (!found || !pmu->set_drv_config) {
- err = -EINVAL;
- *err_term = term;
- break;
- }
-
- err = pmu->set_drv_config(term);
- if (err) {
- *err_term = term;
- break;
- }
- }
-
- return err;
-}
-
-int perf_evlist__apply_drv_configs(struct perf_evlist *evlist,
- struct perf_evsel **err_evsel,
- struct perf_evsel_config_term **err_term)
-{
- struct perf_evsel *evsel;
- int err = 0;
-
- evlist__for_each_entry(evlist, evsel) {
- err = perf_evsel__apply_drv_configs(evsel, err_term);
- if (err) {
- *err_evsel = evsel;
- break;
- }
- }
-
- return err;
-}
diff --git a/tools/perf/util/drv_configs.h b/tools/perf/util/drv_configs.h
deleted file mode 100644
index 32bc9babc2e0..000000000000
--- a/tools/perf/util/drv_configs.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * drv_configs.h: Interface to apply PMU specific configuration
- * Copyright (c) 2016-2018, Linaro Ltd.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- */
-
-#ifndef __PERF_DRV_CONFIGS_H
-#define __PERF_DRV_CONFIGS_H
-
-#include "drv_configs.h"
-#include "evlist.h"
-#include "evsel.h"
-
-int perf_evlist__apply_drv_configs(struct perf_evlist *evlist,
- struct perf_evsel **err_evsel,
- struct perf_evsel_config_term **term);
-#endif
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index 1c12a61ed0dc..47253c3daf55 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -31,7 +31,6 @@ struct perf_pmu {
struct list_head format; /* HEAD struct perf_pmu_format -> list */
struct list_head aliases; /* HEAD struct perf_pmu_alias -> list */
struct list_head list; /* ELEM */
- int (*set_drv_config) (struct perf_evsel_config_term *term);
};

struct perf_pmu_info {
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