Commit-ID:  39956e78010645ee9d121e6a6eb6d9892e3fc92e
Gitweb:     http://git.kernel.org/tip/39956e78010645ee9d121e6a6eb6d9892e3fc92e
Author:     Jiri Olsa <[email protected]>
AuthorDate: Tue, 3 Dec 2013 14:09:39 +0100
Committer:  Arnaldo Carvalho de Melo <[email protected]>
CommitDate: Wed, 4 Dec 2013 15:37:24 -0300

tools lib traceevent: Several cleanups for function plugin

Several cleanups suggested by Namhyung:

  * Remove index field from struct func_stack as it's not needed.

  * Rename get_index into add_and_get_index.

  * Use '%*X' format string capability instead of the loop

Suggested-by: Namhyung Kim <[email protected]>
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Corey Ashford <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Steven Rostedt <[email protected]>
Link: 
http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
---
 tools/lib/traceevent/plugin_function.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/tools/lib/traceevent/plugin_function.c 
b/tools/lib/traceevent/plugin_function.c
index 8deb22e..87acf9c 100644
--- a/tools/lib/traceevent/plugin_function.c
+++ b/tools/lib/traceevent/plugin_function.c
@@ -25,7 +25,6 @@
 #include "event-utils.h"
 
 static struct func_stack {
-       int index;
        int size;
        char **stack;
 } *fstack;
@@ -57,7 +56,7 @@ static void add_child(struct func_stack *stack, const char 
*child, int pos)
        stack->stack[pos] = strdup(child);
 }
 
-static int get_index(const char *parent, const char *child, int cpu)
+static int add_and_get_index(const char *parent, const char *child, int cpu)
 {
        int i;
 
@@ -97,7 +96,7 @@ static int function_handler(struct trace_seq *s, struct 
pevent_record *record,
        unsigned long long pfunction;
        const char *func;
        const char *parent;
-       int i, index;
+       int index;
 
        if (pevent_get_field_val(s, event, "ip", record, &function, 1))
                return trace_seq_putc(s, '!');
@@ -109,10 +108,9 @@ static int function_handler(struct trace_seq *s, struct 
pevent_record *record,
 
        parent = pevent_find_function(pevent, pfunction);
 
-       index = get_index(parent, func, record->cpu);
+       index = add_and_get_index(parent, func, record->cpu);
 
-       for (i = 0; i < index; i++)
-               trace_seq_printf(s, "   ");
+       trace_seq_printf(s, "%*s", index*3, "");
 
        if (func)
                trace_seq_printf(s, "%s", func);
--
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