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

Cc: Michael Turquette <mturque...@baylibre.com>
Cc: Stephen Boyd <sb...@kernel.org>
Cc: linux-...@vger.kernel.org
Signed-off-by: Yisheng Xie <xieyishe...@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

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