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perf pmu: Change convert_scale from static to global

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The function convert_scale() can be used to convert string to unit and
scale. For example,

  s = "6000000000ns";
  convert_scale(s, &unit, &scale);

unit = "ns", scale = 6000000000.

Currently this function is static. This patch renames the function to
perf_pmu__convert_scale and changes the function to global.  No
functional change.

Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20190828055932.8269-2-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jin Yao 2019-08-28 13:59:29 +08:00 committed by Arnaldo Carvalho de Melo
parent d3300a3c4e
commit a55ab7c4ca
2 changed files with 5 additions and 3 deletions
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6
tools/perf/util/pmu.c
View File

@ -102,7 +102,7 @@ static int pmu_format(const char *name, struct list_head *format)
return 0;
}
static int convert_scale(const char *scale, char **end, double *sval)
int perf_pmu__convert_scale(const char *scale, char **end, double *sval)
{
char *lc;
int ret = 0;
@ -165,7 +165,7 @@ static int perf_pmu__parse_scale(struct perf_pmu_alias *alias, char *dir, char *
else
scale[sret] = '\0';
ret = convert_scale(scale, NULL, &alias->scale);
ret = perf_pmu__convert_scale(scale, NULL, &alias->scale);
error:
close(fd);
return ret;
@ -373,7 +373,7 @@ static int __perf_pmu__new_alias(struct list_head *list, char *dir, char *name,
desc ? strdup(desc) : NULL;
alias->topic = topic ? strdup(topic) : NULL;
if (unit) {
if (convert_scale(unit, &unit, &alias->scale) < 0)
if (perf_pmu__convert_scale(unit, &unit, &alias->scale) < 0)
return -1;
snprintf(alias->unit, sizeof(alias->unit), "%s", unit);
}

2
tools/perf/util/pmu.h
View File

@ -96,4 +96,6 @@ struct perf_event_attr *perf_pmu__get_default_config(struct perf_pmu *pmu);
struct pmu_events_map *perf_pmu__find_map(struct perf_pmu *pmu);
int perf_pmu__convert_scale(const char *scale, char **end, double *sval);
#endif /* __PMU_H */