[PATCH 14/33] clk: use match_string() helper

Yisheng Xie
2018-05-21T12:16:05Z

match_string() returns the index of an array for a matching string,
which can be used intead of open coded variant.

Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: linux-clk@vger.kernel.org
Signed-off-by: Yisheng Xie <xieyisheng1@huawei.com>
---
drivers/clk/clk.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 7af555f..4469eca 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -2171,7 +2171,6 @@ void clk_hw_reparent(struct clk_hw *hw, struct clk_hw *new_parent)
bool clk_has_parent(struct clk *clk, struct clk *parent)
{
struct clk_core *core, *parent_core;
- unsigned int i;

/* NULL clocks should be nops, so return success if either is NULL. */
if (!clk || !parent)
@@ -2184,11 +2183,8 @@ bool clk_has_parent(struct clk *clk, struct clk *parent)
if (core->parent == parent_core)
return true;

- for (i = 0; i < core->num_parents; i++)
- if (strcmp(core->parent_names[i], parent_core->name) == 0)
- return true;
-
- return false;
+ return match_string(core->parent_names,
+ core->num_parents, parent_core->name) >= 0;
}
EXPORT_SYMBOL_GPL(clk_has_parent);

--
1.7.12.4