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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-10-03 11:07:24 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-10-03 11:24:13 -0300 |
| commit | 18ef15c675a5d5d97f844ebcf340a2a6c7cf3142 (patch) | |
| tree | 08616a05632dbbea3281e040069f5cbdca9878d8 /tools/perf/util/thread.c | |
| parent | ead1a57457c0324a167f3f9e3a70e26c2d75fb12 (diff) | |
| download | linux-18ef15c675a5d5d97f844ebcf340a2a6c7cf3142.tar.bz2 | |
perf tools: Experiment with cppcheck
Experimenting a bit using cppcheck[1], a static checker brought to my
attention by Colin, reducing the scope of some variables, reducing the
line of source code lines in the process:
$ cppcheck --enable=style tools/perf/util/thread.c
Checking tools/perf/util/thread.c...
[tools/perf/util/thread.c:17]: (style) The scope of the variable 'leader' can be reduced.
[tools/perf/util/thread.c:133]: (style) The scope of the variable 'err' can be reduced.
[tools/perf/util/thread.c:273]: (style) The scope of the variable 'err' can be reduced.
Will continue later, but these are already useful, keep them.
1: https://sourceforge.net/p/cppcheck/wiki/Home/
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Colin Ian King <colin.king@canonical.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-ixws7lbycihhpmq9cc949ti6@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/thread.c')
| -rw-r--r-- | tools/perf/util/thread.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c index 8b10a55410a2..f5af87f66663 100644 --- a/tools/perf/util/thread.c +++ b/tools/perf/util/thread.c @@ -14,13 +14,12 @@ int thread__init_map_groups(struct thread *thread, struct machine *machine) { - struct thread *leader; pid_t pid = thread->pid_; if (pid == thread->tid || pid == -1) { thread->mg = map_groups__new(machine); } else { - leader = __machine__findnew_thread(machine, pid, pid); + struct thread *leader = __machine__findnew_thread(machine, pid, pid); if (leader) { thread->mg = map_groups__get(leader->mg); thread__put(leader); @@ -130,11 +129,10 @@ int __thread__set_comm(struct thread *thread, const char *str, u64 timestamp, bool exec) { struct comm *new, *curr = thread__comm(thread); - int err; /* Override the default :tid entry */ if (!thread->comm_set) { - err = comm__override(curr, str, timestamp, exec); + int err = comm__override(curr, str, timestamp, exec); if (err) return err; } else { @@ -270,10 +268,9 @@ static int thread__clone_map_groups(struct thread *thread, int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp) { - int err; - if (parent->comm_set) { const char *comm = thread__comm_str(parent); + int err; if (!comm) return -ENOMEM; err = thread__set_comm(thread, comm, timestamp); |