[PATCH 15/44] tools lib traceevent: Change description of few APIs

Arnaldo Carvalho de Melo
2019-04-02T16:06:55Z

From: Tzvetomir Stoyanov <tstoyanov@vmware.com>

APIs descriptions should describe the purpose of the function, its
parameters and return value. While working on man pages implementation,
I noticed mismatches in the descriptions of few APIs. This patch
changes the description of these APIs, making them consistent with the
man pages:

- tep_print_num_field()
- tep_print_func_field()
- tep_get_header_page_size()
- tep_get_long_size()
- tep_set_long_size()
- tep_get_page_size()
- tep_set_page_size()

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/linux-trace-devel/20190325145017.30246-2-tstoyanov@vmware.com
Link: http://lkml.kernel.org/r/20190401164343.396759247@goodmis.org
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/lib/traceevent/event-parse-api.c | 20 ++++++++++----------
tools/lib/traceevent/event-parse.c | 6 ++++--
2 files changed, 14 insertions(+), 12 deletions(-)

diff --git a/tools/lib/traceevent/event-parse-api.c b/tools/lib/traceevent/event-parse-api.c
index d463761a58f4..3686a221e981 100644
--- a/tools/lib/traceevent/event-parse-api.c
+++ b/tools/lib/traceevent/event-parse-api.c
@@ -43,8 +43,8 @@ int tep_get_events_count(struct tep_handle *tep)
* @flag: flag, or combination of flags to be set
* can be any combination from enum tep_flag
*
- * This sets a flag or mbination of flags from enum tep_flag
- */
+ * This sets a flag or combination of flags from enum tep_flag
+ */
void tep_set_flag(struct tep_handle *tep, int flag)
{
if(tep)
@@ -140,10 +140,10 @@ void tep_set_cpus(struct tep_handle *pevent, int cpus)
}

/**
- * tep_get_long_size - get the size of a long integer on the current machine
+ * tep_get_long_size - get the size of a long integer on the traced machine
* @pevent: a handle to the tep_handle
*
- * This returns the size of a long integer on the current machine
+ * This returns the size of a long integer on the traced machine
* If @pevent is NULL, 0 is returned.
*/
int tep_get_long_size(struct tep_handle *pevent)
@@ -154,11 +154,11 @@ int tep_get_long_size(struct tep_handle *pevent)
}

/**
- * tep_set_long_size - set the size of a long integer on the current machine
+ * tep_set_long_size - set the size of a long integer on the traced machine
* @pevent: a handle to the tep_handle
* @size: size, in bytes, of a long integer
*
- * This sets the size of a long integer on the current machine
+ * This sets the size of a long integer on the traced machine
*/
void tep_set_long_size(struct tep_handle *pevent, int long_size)
{
@@ -167,10 +167,10 @@ void tep_set_long_size(struct tep_handle *pevent, int long_size)
}

/**
- * tep_get_page_size - get the size of a memory page on the current machine
+ * tep_get_page_size - get the size of a memory page on the traced machine
* @pevent: a handle to the tep_handle
*
- * This returns the size of a memory page on the current machine
+ * This returns the size of a memory page on the traced machine
* If @pevent is NULL, 0 is returned.
*/
int tep_get_page_size(struct tep_handle *pevent)
@@ -181,11 +181,11 @@ int tep_get_page_size(struct tep_handle *pevent)
}

/**
- * tep_set_page_size - set the size of a memory page on the current machine
+ * tep_set_page_size - set the size of a memory page on the traced machine
* @pevent: a handle to the tep_handle
* @_page_size: size of a memory page, in bytes
*
- * This sets the size of a memory page on the current machine
+ * This sets the size of a memory page on the traced machine
*/
void tep_set_page_size(struct tep_handle *pevent, int _page_size)
{
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index c00aebab3c33..000ab7514be7 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -6453,7 +6453,8 @@ int tep_get_any_field_val(struct trace_seq *s, struct tep_event *event,
* @record: The record with the field name.
* @err: print default error if failed.
*
- * Returns: 0 on success, -1 field not found, or 1 if buffer is full.
+ * Returns positive value on success, negative in case of an error,
+ * or 0 if buffer is full.
*/
int tep_print_num_field(struct trace_seq *s, const char *fmt,
struct tep_event *event, const char *name,
@@ -6485,7 +6486,8 @@ int tep_print_num_field(struct trace_seq *s, const char *fmt,
* @record: The record with the field name.
* @err: print default error if failed.
*
- * Returns: 0 on success, -1 field not found, or 1 if buffer is full.
+ * Returns positive value on success, negative in case of an error,
+ * or 0 if buffer is full.
*/
int tep_print_func_field(struct trace_seq *s, const char *fmt,
struct tep_event *event, const char *name,
--
2.20.1