perf trace: Do not beautify the 'pid' parameter as a simple integer

Leave it alone so that it ends up assigned to SCA_PID via its type,
'pid_t', that will look up the pid on the machine thread rb_tree and
possibly find its COMM.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-r7dujgmhtxxfajuunpt1bkuo@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 903deda92d9e8ef7fc2515b8660c55a25f7559b9..48b00f0425991926b9f844678715b008f57714b2 100644 (file)
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1043,8 +1043,7 @@ static struct syscall_fmt {
                             [1] = SCA_FILENAME, /* filename */
                             [2] = SCA_OPEN_FLAGS, /* flags */ }, },
        { .name     = "perf_event_open", .errmsg = true,
-         .arg_scnprintf = { [1] = SCA_INT, /* pid */
-                            [2] = SCA_INT, /* cpu */
+         .arg_scnprintf = { [2] = SCA_INT, /* cpu */
                             [3] = SCA_FD,  /* group_fd */
                             [4] = SCA_PERF_FLAGS,  /* flags */ }, },
        { .name     = "pipe2",      .errmsg = true,