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perf trace: Fix incorrectly parsed hexadecimal value for flags in filter

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When parsing flags in filter, the strtoul function uses wrong parsing
condition (tok[1] = 'x'), which can make the flags be corrupted and
treat all numbers start with 0 as hex.

In fact strtoul() will auto test hex format when base == 0 (See
_parse_integer_fixup_radix). So there is no need to test this again.

Remove the unnessesary is_hexa test.

Fixes: 154c978d48 ("libbeauty: Introduce strarray__strtoul_flags()")
Signed-off-by: Chen Zhongjin <chenzhongjin@huawei.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Florian Fischer <florian.fischer@muhq.space>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20220926031440.28275-3-chenzhongjin@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Chen Zhongjin 2022-09-26 11:14:37 +08:00 committed by Arnaldo Carvalho de Melo
parent 888964a05d
commit 96b731412d
1 changed files with 2 additions and 5 deletions
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7
tools/perf/builtin-trace.c
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@ -615,11 +615,8 @@ bool strarray__strtoul_flags(struct strarray *sa, char *bf, size_t size, u64 *re
if (isalpha(*tok) || *tok == '_') {
if (!strarray__strtoul(sa, tok, toklen, &val))
return false;
} else {
bool is_hexa = tok[0] == 0 && (tok[1] = 'x' || tok[1] == 'X');
val = strtoul(tok, NULL, is_hexa ? 16 : 0);
}
} else
val = strtoul(tok, NULL, 0);
*ret |= (1 << (val - 1));