[PATCH] gpio: turn of_pinctrl_get() into a static inline

From: Stephen Rothwell
Date: Wed Apr 01 2020 - 04:08:18 EST


This avoids the overheads of an EXPORTed function.

Suggested-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Signed-off-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
---
drivers/pinctrl/devicetree.c | 6 ------
include/linux/pinctrl/pinctrl.h | 9 +++------
2 files changed, 3 insertions(+), 12 deletions(-)

This is not even build tested, but is this what you meant, Geert?

diff --git a/drivers/pinctrl/devicetree.c b/drivers/pinctrl/devicetree.c
index c6fe7d64c913..61abff89e5f8 100644
--- a/drivers/pinctrl/devicetree.c
+++ b/drivers/pinctrl/devicetree.c
@@ -99,12 +99,6 @@ static int dt_remember_or_free_map(struct pinctrl *p, const char *statename,
return -ENOMEM;
}

-struct pinctrl_dev *of_pinctrl_get(struct device_node *np)
-{
- return get_pinctrl_dev_from_of_node(np);
-}
-EXPORT_SYMBOL_GPL(of_pinctrl_get);
-
static int dt_to_map_one_config(struct pinctrl *p,
struct pinctrl_dev *hog_pctldev,
const char *statename,
diff --git a/include/linux/pinctrl/pinctrl.h b/include/linux/pinctrl/pinctrl.h
index 2aef59df93d7..e7b5cd5e1b10 100644
--- a/include/linux/pinctrl/pinctrl.h
+++ b/include/linux/pinctrl/pinctrl.h
@@ -186,15 +186,12 @@ extern int pinctrl_get_group_pins(struct pinctrl_dev *pctldev,
const char *pin_group, const unsigned **pins,
unsigned *num_pins);

-#if IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_PINCTRL)
-extern struct pinctrl_dev *of_pinctrl_get(struct device_node *np);
-#else
-static inline
-struct pinctrl_dev *of_pinctrl_get(struct device_node *np)
+static inline struct pinctrl_dev *of_pinctrl_get(struct device_node *np)
{
+ if (IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_PINCTRL))
+ return get_pinctrl_dev_from_of_node(np);
return NULL;
}
-#endif /* CONFIG_OF */

extern const char *pinctrl_dev_get_name(struct pinctrl_dev *pctldev);
extern const char *pinctrl_dev_get_devname(struct pinctrl_dev *pctldev);
--
2.26.0

--
Cheers,
Stephen Rothwell

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