From: Yisheng Xie Date: Thu, 31 May 2018 11:11:14 +0000 (+0800) Subject: clk: use match_string() helper X-Git-Tag: v4.18-rc1~79^2~4^2 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d6347445c49637237c5316fd76833be1d0ffa695;p=thirdparty%2Fkernel%2Flinux.git clk: use match_string() helper match_string() returns the index of an array for a matching string, which can be used instead of open coded variant. Cc: Michael Turquette Cc: linux-clk@vger.kernel.org Signed-off-by: Yisheng Xie Signed-off-by: Stephen Boyd --- diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index ea67ac81c6f97..b7d1a56341642 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -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);