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perf trace: Streamline validation of select syscall names list 

Rename the 'i' variable to 'nr_used' and use set 'nr_allocated' since
the start of this function, leaving the final assignment of the longer
named trace->ev_qualifier_ids.nr state to 'nr_used' at the end of the
function.

No change in behaviour intended.

Cc: Leo Yan <leo.yan@linaro.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lkml.kernel.org/n/tip-kpgyn8xjdjgt0timrrnniquv@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2019-06-13 18:17:41 -03:00
parent a4066d64d9
commit 99f26f8548
1 changed files with 6 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
tools/perf/builtin-trace.c
View File

@ -1529,11 +1529,10 @@ static int trace__validate_ev_qualifier(struct trace *trace)
{
int err = 0;
bool printed_invalid_prefix = false;
size_t nr_allocated, i;
struct str_node *pos;
size_t nr_used = 0, nr_allocated = strlist__nr_entries(trace->ev_qualifier);
trace->ev_qualifier_ids.nr = strlist__nr_entries(trace->ev_qualifier);
trace->ev_qualifier_ids.entries = malloc(trace->ev_qualifier_ids.nr *
trace->ev_qualifier_ids.entries = malloc(nr_allocated *
sizeof(trace->ev_qualifier_ids.entries[0]));
if (trace->ev_qualifier_ids.entries == NULL) {
@ -1543,9 +1542,6 @@ static int trace__validate_ev_qualifier(struct trace *trace)
goto out;
}
nr_allocated = trace->ev_qualifier_ids.nr;
i = 0;
strlist__for_each_entry(pos, trace->ev_qualifier) {
const char *sc = pos->s;
int id = syscalltbl__id(trace->sctbl, sc), match_next = -1;
@ -1566,7 +1562,7 @@ static int trace__validate_ev_qualifier(struct trace *trace)
continue;
}
matches:
trace->ev_qualifier_ids.entries[i++] = id;
trace->ev_qualifier_ids.entries[nr_used++] = id;
if (match_next == -1)
continue;
@ -1574,7 +1570,7 @@ matches:
id = syscalltbl__strglobmatch_next(trace->sctbl, sc, &match_next);
if (id < 0)
break;
if (nr_allocated == i) {
if (nr_allocated == nr_used) {
void *entries;
nr_allocated += 8;
@ -1587,11 +1583,11 @@ matches:
}
trace->ev_qualifier_ids.entries = entries;
}
trace->ev_qualifier_ids.entries[i++] = id;
trace->ev_qualifier_ids.entries[nr_used++] = id;
}
}
trace->ev_qualifier_ids.nr = i;
trace->ev_qualifier_ids.nr = nr_used;
out:
if (printed_invalid_prefix)
pr_debug("\n");