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Message-ID: <YdybPJKjqx6zb28/@kernel.org>
Date: Mon, 10 Jan 2022 17:46:52 -0300
From: Arnaldo Carvalho de Melo <acme@...nel.org>
To: Ian Rogers <irogers@...gle.com>
Cc: Andi Kleen <ak@...ux.intel.com>, Jiri Olsa <jolsa@...hat.com>,
Namhyung Kim <namhyung@...nel.org>,
John Garry <john.garry@...wei.com>,
Kajol Jain <kjain@...ux.ibm.com>,
"Paul A . Clarke" <pc@...ibm.com>,
Riccardo Mancini <rickyman7@...il.com>,
Kan Liang <kan.liang@...ux.intel.com>,
Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
Mark Rutland <mark.rutland@....com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org,
Vineet Singh <vineet.singh@...el.com>,
James Clark <james.clark@....com>,
Mathieu Poirier <mathieu.poirier@...aro.org>,
Suzuki K Poulose <suzuki.poulose@....com>,
Mike Leach <mike.leach@...aro.org>,
Leo Yan <leo.yan@...aro.org>, coresight@...ts.linaro.org,
linux-arm-kernel@...ts.infradead.org, zhengjun.xing@...el.com,
eranian@...gle.com
Subject: Re: [PATCH v3 06/48] perf cpumap: Switch cpu_map__build_map to cpu
function
Em Wed, Dec 29, 2021 at 11:19:48PM -0800, Ian Rogers escreveu:
> Avoid error prone cpu_map + idx variant. Remove now unused functions.
At this point we need to remove the now unused perf_env__get_cpu(), and
then deal with the fallout in the following patches that needlessly
modify this unused function.
Doing that now.
- Arnaldo
⬢[acme@...lbox perf]$ git diff
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 6b985abaa2d22c58..40cb3518f27e2309 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1477,22 +1477,6 @@ static void perf_stat__exit_aggr_mode(void)
stat_config.cpus_aggr_map = NULL;
}
-static inline int perf_env__get_cpu(void *data, struct perf_cpu_map *map, int idx)
-{
- struct perf_env *env = data;
- int cpu;
-
- if (idx > map->nr)
- return -1;
-
- cpu = map->map[idx];
-
- if (cpu >= env->nr_cpus_avail)
- return -1;
-
- return cpu;
-}
-
static struct aggr_cpu_id perf_env__get_socket_aggr_by_cpu(int cpu, void *data)
{
struct perf_env *env = data;
> Reviewed-by: James Clark <james.clark@....com>
> Signed-off-by: Ian Rogers <irogers@...gle.com>
> ---
> tools/perf/builtin-stat.c | 28 ++++------------------------
> tools/perf/util/cpumap.c | 12 ++++++------
> tools/perf/util/cpumap.h | 2 +-
> 3 files changed, 11 insertions(+), 31 deletions(-)
>
> diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
> index 9791ae9b1a53..6b985abaa2d2 100644
> --- a/tools/perf/builtin-stat.c
> +++ b/tools/perf/builtin-stat.c
> @@ -1504,11 +1504,6 @@ static struct aggr_cpu_id perf_env__get_socket_aggr_by_cpu(int cpu, void *data)
> return id;
> }
>
> -static struct aggr_cpu_id perf_env__get_socket(struct perf_cpu_map *map, int idx, void *data)
> -{
> - return perf_env__get_socket_aggr_by_cpu(perf_env__get_cpu(data, map, idx), data);
> -}
> -
> static struct aggr_cpu_id perf_env__get_die_aggr_by_cpu(int cpu, void *data)
> {
> struct perf_env *env = data;
> @@ -1527,11 +1522,6 @@ static struct aggr_cpu_id perf_env__get_die_aggr_by_cpu(int cpu, void *data)
> return id;
> }
>
> -static struct aggr_cpu_id perf_env__get_die(struct perf_cpu_map *map, int idx, void *data)
> -{
> - return perf_env__get_die_aggr_by_cpu(perf_env__get_cpu(data, map, idx), data);
> -}
> -
> static struct aggr_cpu_id perf_env__get_core_aggr_by_cpu(int cpu, void *data)
> {
> struct perf_env *env = data;
> @@ -1551,11 +1541,6 @@ static struct aggr_cpu_id perf_env__get_core_aggr_by_cpu(int cpu, void *data)
> return id;
> }
>
> -static struct aggr_cpu_id perf_env__get_core(struct perf_cpu_map *map, int idx, void *data)
> -{
> - return perf_env__get_core_aggr_by_cpu(perf_env__get_cpu(data, map, idx), data);
> -}
> -
> static struct aggr_cpu_id perf_env__get_node_aggr_by_cpu(int cpu, void *data)
> {
> struct aggr_cpu_id id = cpu_map__empty_aggr_cpu_id();
> @@ -1564,33 +1549,28 @@ static struct aggr_cpu_id perf_env__get_node_aggr_by_cpu(int cpu, void *data)
> return id;
> }
>
> -static struct aggr_cpu_id perf_env__get_node(struct perf_cpu_map *map, int idx, void *data)
> -{
> - return perf_env__get_node_aggr_by_cpu(perf_env__get_cpu(data, map, idx), data);
> -}
> -
> static int perf_env__build_socket_map(struct perf_env *env, struct perf_cpu_map *cpus,
> struct cpu_aggr_map **sockp)
> {
> - return cpu_map__build_map(cpus, sockp, perf_env__get_socket, env);
> + return cpu_map__build_map(cpus, sockp, perf_env__get_socket_aggr_by_cpu, env);
> }
>
> static int perf_env__build_die_map(struct perf_env *env, struct perf_cpu_map *cpus,
> struct cpu_aggr_map **diep)
> {
> - return cpu_map__build_map(cpus, diep, perf_env__get_die, env);
> + return cpu_map__build_map(cpus, diep, perf_env__get_die_aggr_by_cpu, env);
> }
>
> static int perf_env__build_core_map(struct perf_env *env, struct perf_cpu_map *cpus,
> struct cpu_aggr_map **corep)
> {
> - return cpu_map__build_map(cpus, corep, perf_env__get_core, env);
> + return cpu_map__build_map(cpus, corep, perf_env__get_core_aggr_by_cpu, env);
> }
>
> static int perf_env__build_node_map(struct perf_env *env, struct perf_cpu_map *cpus,
> struct cpu_aggr_map **nodep)
> {
> - return cpu_map__build_map(cpus, nodep, perf_env__get_node, env);
> + return cpu_map__build_map(cpus, nodep, perf_env__get_node_aggr_by_cpu, env);
> }
>
> static struct aggr_cpu_id perf_stat__get_socket_file(struct perf_stat_config *config __maybe_unused,
> diff --git a/tools/perf/util/cpumap.c b/tools/perf/util/cpumap.c
> index 49fba2c53822..feaf34b25efc 100644
> --- a/tools/perf/util/cpumap.c
> +++ b/tools/perf/util/cpumap.c
> @@ -163,7 +163,7 @@ static int cmp_aggr_cpu_id(const void *a_pointer, const void *b_pointer)
> }
>
> int cpu_map__build_map(struct perf_cpu_map *cpus, struct cpu_aggr_map **res,
> - struct aggr_cpu_id (*f)(struct perf_cpu_map *map, int cpu, void *data),
> + struct aggr_cpu_id (*f)(int cpu, void *data),
> void *data)
> {
> int nr = cpus->nr;
> @@ -178,7 +178,7 @@ int cpu_map__build_map(struct perf_cpu_map *cpus, struct cpu_aggr_map **res,
> c->nr = 0;
>
> for (cpu = 0; cpu < nr; cpu++) {
> - s1 = f(cpus, cpu, data);
> + s1 = f(cpu, data);
> for (s2 = 0; s2 < c->nr; s2++) {
> if (cpu_map__compare_aggr_cpu_id(s1, c->map[s2]))
> break;
> @@ -290,22 +290,22 @@ struct aggr_cpu_id cpu_map__get_node(struct perf_cpu_map *map, int idx, void *da
>
> int cpu_map__build_socket_map(struct perf_cpu_map *cpus, struct cpu_aggr_map **sockp)
> {
> - return cpu_map__build_map(cpus, sockp, cpu_map__get_socket, NULL);
> + return cpu_map__build_map(cpus, sockp, cpu_map__get_socket_aggr_by_cpu, NULL);
> }
>
> int cpu_map__build_die_map(struct perf_cpu_map *cpus, struct cpu_aggr_map **diep)
> {
> - return cpu_map__build_map(cpus, diep, cpu_map__get_die, NULL);
> + return cpu_map__build_map(cpus, diep, cpu_map__get_die_aggr_by_cpu, NULL);
> }
>
> int cpu_map__build_core_map(struct perf_cpu_map *cpus, struct cpu_aggr_map **corep)
> {
> - return cpu_map__build_map(cpus, corep, cpu_map__get_core, NULL);
> + return cpu_map__build_map(cpus, corep, cpu_map__get_core_aggr_by_cpu, NULL);
> }
>
> int cpu_map__build_node_map(struct perf_cpu_map *cpus, struct cpu_aggr_map **numap)
> {
> - return cpu_map__build_map(cpus, numap, cpu_map__get_node, NULL);
> + return cpu_map__build_map(cpus, numap, cpu_map__get_node_aggr_by_cpu, NULL);
> }
>
> /* setup simple routines to easily access node numbers given a cpu number */
> diff --git a/tools/perf/util/cpumap.h b/tools/perf/util/cpumap.h
> index c62d67704425..9648816c4255 100644
> --- a/tools/perf/util/cpumap.h
> +++ b/tools/perf/util/cpumap.h
> @@ -63,7 +63,7 @@ int cpu__max_present_cpu(void);
> int cpu__get_node(int cpu);
>
> int cpu_map__build_map(struct perf_cpu_map *cpus, struct cpu_aggr_map **res,
> - struct aggr_cpu_id (*f)(struct perf_cpu_map *map, int cpu, void *data),
> + struct aggr_cpu_id (*f)(int cpu, void *data),
> void *data);
>
> int cpu_map__cpu(struct perf_cpu_map *cpus, int idx);
> --
> 2.34.1.448.ga2b2bfdf31-goog
--
- Arnaldo
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