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Date: Sun, 21 Sep 2014 00:44:55 +0900
From: Namhyung Kim <namhyung@...nel.org>
To: taeung <treeze.taeung@...il.com>
Cc: linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
acme@...nel.org, jolsa@...hat.com
Subject: Re: [PATCH] modified error code when perf_session__new() fail
Hi Taeung,
Please CC perf maintainers when you send a perf patch. I'm adding
Arnaldo who maintains tooling part and Jiri who suggested this change.
2014-09-17 (수), 17:31 +0900, taeung:
> Hi,
>
> I modified error code for the requirement as below.
>
> Author: taeung <treeze.taeung@...il.com>
> Date: Sat Sep 13 16:22:53 2014 +0900
>
> modified error code when perf_session__new() fail
>
> Because perf_session__new() could fail
> for more reasons than just ENOMEM,
> I modified error code(ENOMEM or EINVAL)
> into -1.
Hmm.. this seems you copied output of "git show" and send it via an
email client. I recommend you to use "git format-patch" and "git
send-email" later.
In addition, you forgot to add your Signed-off-by.
That being said I'm okay with the patch itself. Jiri, this is what you
wanted to do, right?
Thanks,
Namhyung
>
>
> diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
> index 1ec429f..81c9fda 100644
> --- a/tools/perf/builtin-annotate.c
> +++ b/tools/perf/builtin-annotate.c
> @@ -199,7 +199,7 @@ static int __cmd_annotate(struct perf_annotate *ann)
>
> session = perf_session__new(&file, false, &ann->tool);
> if (session == NULL)
> - return -ENOMEM;
> + return -1;
>
> machines__set_symbol_filter(&session->machines,
> symbol__annotate_init);
>
> diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
> index 9a5a035..3363dce 100644
> --- a/tools/perf/builtin-diff.c
> +++ b/tools/perf/builtin-diff.c
> @@ -683,7 +683,7 @@ static int __cmd_diff(void)
> d->session = perf_session__new(&d->file, false, &tool);
> if (!d->session) {
> pr_err("Failed to open %s\n", d->file.path);
> - ret = -ENOMEM;
> + ret = -1;
> goto out_delete;
> }
>
> diff --git a/tools/perf/builtin-evlist.c b/tools/perf/builtin-evlist.c
> index 66e12f5..0f93f85 100644
> --- a/tools/perf/builtin-evlist.c
> +++ b/tools/perf/builtin-evlist.c
> @@ -28,7 +28,7 @@ static int __cmd_evlist(const char *file_name, struct
> perf_attr_details *details
>
> session = perf_session__new(&file, 0, NULL);
> if (session == NULL)
> - return -ENOMEM;
> + return -1;
>
> evlist__for_each(session->evlist, pos)
> perf_evsel__fprintf(pos, details, stdout);
> diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
> index 9a02807..8dbdd13 100644
> --- a/tools/perf/builtin-inject.c
> +++ b/tools/perf/builtin-inject.c
> @@ -359,7 +359,7 @@ static int __cmd_inject(struct perf_inject *inject)
>
> session = perf_session__new(&file, true, &inject->tool);
> if (session == NULL)
> - return -ENOMEM;
> + return -1;
>
> if (inject->build_ids) {
> inject->tool.sample = perf_event__inject_buildid;
> diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
> index bef3376..b518f4b 100644
> --- a/tools/perf/builtin-kmem.c
> +++ b/tools/perf/builtin-kmem.c
> @@ -422,7 +422,7 @@ static int __cmd_kmem(void)
>
> session = perf_session__new(&file, false, &perf_kmem);
> if (session == NULL)
> - return -ENOMEM;
> + return -1;
>
> if (perf_session__create_kernel_maps(session) < 0)
> goto out_delete;
> diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c
> index 43367eb..828e706 100644
> --- a/tools/perf/builtin-kvm.c
> +++ b/tools/perf/builtin-kvm.c
> @@ -1060,7 +1060,7 @@ static int read_events(struct perf_kvm_stat *kvm)
> .comm = perf_event__process_comm,
> .ordered_samples = true,
> };
> - struct perf_data_file file = {
> + struct perf_data_file file = {
> .path = kvm->file_name,
> .mode = PERF_DATA_MODE_READ,
> };
> @@ -1069,7 +1069,7 @@ static int read_events(struct perf_kvm_stat *kvm)
> kvm->session = perf_session__new(&file, false, &kvm->tool);
> if (!kvm->session) {
> pr_err("Initializing perf session failed\n");
> - return -EINVAL;
> + return -1;
> }
>
> if (!perf_session__has_traces(kvm->session, "kvm record"))
> @@ -1369,7 +1369,7 @@ static int kvm_events_live(struct perf_kvm_stat *kvm,
> */
> kvm->session = perf_session__new(&file, false, &kvm->tool);
> if (kvm->session == NULL) {
> - err = -ENOMEM;
> + err = -1;
> goto out;
> }
> kvm->session->evlist = kvm->evlist;
> diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
> index 6148afc..49f1e30 100644
> --- a/tools/perf/builtin-lock.c
> +++ b/tools/perf/builtin-lock.c
> @@ -862,7 +862,7 @@ static int __cmd_report(bool display_info)
> session = perf_session__new(&file, false, &eops);
> if (!session) {
> pr_err("Initializing perf session failed\n");
> - return -ENOMEM;
> + return -1;
> }
>
> if (!perf_session__has_traces(session, "lock record"))
> diff --git a/tools/perf/builtin-mem.c b/tools/perf/builtin-mem.c
> index 4a1a6c9..75976ce 100644
> --- a/tools/perf/builtin-mem.c
> +++ b/tools/perf/builtin-mem.c
> @@ -124,7 +124,7 @@ static int report_raw_events(struct perf_mem *mem)
> &mem->tool);
>
> if (session == NULL)
> - return -ENOMEM;
> + return -1;
>
> if (mem->cpu_list) {
> ret = perf_session__cpu_bitmap(session, mem->cpu_list,
> diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
> index 21d830b..1a7abac 100644
> --- a/tools/perf/builtin-report.c
> +++ b/tools/perf/builtin-report.c
> @@ -712,7 +712,7 @@ int cmd_report(int argc, const char **argv, const
> char *prefix __maybe_unused)
> repeat:
> session = perf_session__new(&file, false, &report.tool);
> if (session == NULL)
> - return -ENOMEM;
> + return -1;
>
> report.session = session;
>
> diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
> index f57035b..77cef60 100644
> --- a/tools/perf/builtin-script.c
> +++ b/tools/perf/builtin-script.c
> @@ -1725,7 +1725,7 @@ int cmd_script(int argc, const char **argv, const
> char *prefix __maybe_unused)
>
> session = perf_session__new(&file, false, &script.tool);
> if (session == NULL)
> - return -ENOMEM;
> + return -1;
>
> if (header || header_only) {
> perf_session__fprintf_info(session, stdout, show_full_info);
> diff --git a/tools/perf/builtin-timechart.c
> b/tools/perf/builtin-timechart.c
> index 2f1a522..dc9a465 100644
> --- a/tools/perf/builtin-timechart.c
> +++ b/tools/perf/builtin-timechart.c
> @@ -1605,7 +1605,7 @@ static int __cmd_timechart(struct timechart
> *tchart, const char *output_name)
> int ret = -EINVAL;
>
> if (session == NULL)
> - return -ENOMEM;
> + return -1;
>
> (void)perf_header__process_sections(&session->header,
> perf_data_file__fd(session->file),
> diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
> index 377971d..8217b5d 100644
> --- a/tools/perf/builtin-top.c
> +++ b/tools/perf/builtin-top.c
> @@ -911,7 +911,7 @@ static int __cmd_top(struct perf_top *top)
>
> top->session = perf_session__new(NULL, false, NULL);
> if (top->session == NULL)
> - return -ENOMEM;
> + return -1;
>
> machines__set_symbol_filter(&top->session->machines, symbol_filter);
>
> diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
> index a6c3752..9e23293 100644
> --- a/tools/perf/builtin-trace.c
> +++ b/tools/perf/builtin-trace.c
> @@ -2220,7 +2220,7 @@ static int trace__replay(struct trace *trace)
>
> session = perf_session__new(&file, false, &trace->tool);
> if (session == NULL)
> - return -ENOMEM;
> + return -1;
>
> trace->host = &session->machines.host;
>
> Thanks,
--
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