clk: Constify clk_has_parent()

mripard · bebarino · commit 22fb0e284fbc · 2022-09-15T09:32:06.000-07:00
clk_has_parent() doesn't modify the clocks being passed, so let's make it const. Suggested-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://lore.kernel.org/r/20220816112530.1837489-21-maxime@cerno.tech Tested-by: Linux Kernel Functional Testing <lkft@linaro.org> Tested-by: Naresh Kamboju <naresh.kamboju@linaro.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
@@ -2593,7 +2593,7 @@ void clk_hw_reparent(struct clk_hw *hw, struct clk_hw *new_parent)
  *
  * Returns true if @parent is a possible parent for @clk, false otherwise.
  */
-bool clk_has_parent(struct clk *clk, struct clk *parent)
+bool clk_has_parent(const struct clk *clk, const struct clk *parent)
 {
 	/* NULL clocks should be nops, so return success if either is NULL. */
 	if (!clk || !parent)
diff --git a/include/linux/clk.h b/include/linux/clk.h
@@ -799,7 +799,7 @@ int clk_set_rate_exclusive(struct clk *clk, unsigned long rate);
  *
  * Returns true if @parent is a possible parent for @clk, false otherwise.
  */
-bool clk_has_parent(struct clk *clk, struct clk *parent);
+bool clk_has_parent(const struct clk *clk, const struct clk *parent);
 
 /**
  * clk_set_rate_range - set a rate range for a clock source

Original file line number	Diff line number	Diff line change
`@@ -2593,7 +2593,7 @@ void clk_hw_reparent(struct clk_hw hw, struct clk_hw new_parent)`
`2593`	`2593`	`*`
`2594`	`2594`	`* Returns true if @parent is a possible parent for @clk, false otherwise.`
`2595`	`2595`	`*/`
`2596`		`-bool clk_has_parent(struct clk clk, struct clk parent)`
	`2596`	`+bool clk_has_parent(const struct clk clk, const struct clk parent)`
`2597`	`2597`	`{`
`2598`	`2598`	`/* NULL clocks should be nops, so return success if either is NULL. */`
`2599`	`2599`	`if (!clk \|\| !parent)`
Original file line number	Diff line number	Diff line change
`@@ -799,7 +799,7 @@ int clk_set_rate_exclusive(struct clk *clk, unsigned long rate);`
`799`	`799`	`*`
`800`	`800`	`* Returns true if @parent is a possible parent for @clk, false otherwise.`
`801`	`801`	`*/`
`802`		`-bool clk_has_parent(struct clk clk, struct clk parent);`
	`802`	`+bool clk_has_parent(const struct clk clk, const struct clk parent);`
`803`	`803`
`804`	`804`	`/**`
`805`	`805`	`* clk_set_rate_range - set a rate range for a clock source`