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clk: use match_string() helper

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

Cc: Michael Turquette <mturquette@baylibre.com>
Cc: linux-clk@vger.kernel.org
Signed-off-by: Yisheng Xie <xieyisheng1@huawei.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This commit is contained in:
Yisheng Xie 2018-05-31 19:11:14 +08:00 committed by Stephen Boyd
parent 99e7154352
commit d6347445c4
1 changed files with 2 additions and 6 deletions
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8
drivers/clk/clk.c
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@ -2170,7 +2170,6 @@ 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)
@ -2183,11 +2182,8 @@ 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);