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Subject[PATCH 7/8] kernel/trace: is_legal_op can be boolean
Date
This patch makes is_legal_op return bool to improve readability
due to this particular function only using either one or zero as its
return value.

No functional change.

Signed-off-by: Yaowei Bai <bywxiaobai@163.com>
---
kernel/trace/trace_events_filter.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
index bd1bf18..f93a219 100644
--- a/kernel/trace/trace_events_filter.c
+++ b/kernel/trace/trace_events_filter.c
@@ -973,15 +973,15 @@ static bool is_string_field(struct ftrace_event_field *field)
field->filter_type == FILTER_PTR_STRING;
}

-static int is_legal_op(struct ftrace_event_field *field, int op)
+static bool is_legal_op(struct ftrace_event_field *field, int op)
{
if (is_string_field(field) &&
(op != OP_EQ && op != OP_NE && op != OP_GLOB))
- return 0;
+ return false;
if (!is_string_field(field) && op == OP_GLOB)
- return 0;
+ return false;

- return 1;
+ return true;
}

static filter_pred_fn_t select_comparison_fn(int op, int field_size,
--
1.9.1



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