linux-kernel - [PATCH] pinctrl: add one more "const" for generic function groups

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Message-Id: <20211215174821.21668-1-zajec5@gmail.com>
Date:   Wed, 15 Dec 2021 18:48:21 +0100
From:   Rafał Miłecki <zajec5@...il.com>
To:     Linus Walleij <linus.walleij@...aro.org>
Cc:     linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
        Rafał Miłecki <rafal@...ecki.pl>
Subject: [PATCH] pinctrl: add one more "const" for generic function groups

From: Rafał Miłecki <rafal@...ecki.pl>

Generic code doesn't modify those strings and .get_function_groups
callback has that extra "const" as well. This allows more flexibility in
GENERIC_PINMUX_FUNCTIONS users.

Signed-off-by: Rafał Miłecki <rafal@...ecki.pl>
---
 drivers/pinctrl/pinmux.c | 2 +-
 drivers/pinctrl/pinmux.h | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/pinctrl/pinmux.c b/drivers/pinctrl/pinmux.c
index 6cdbd9ccf2f0..f94d43b082d9 100644
--- a/drivers/pinctrl/pinmux.c
+++ b/drivers/pinctrl/pinmux.c
@@ -875,7 +875,7 @@ EXPORT_SYMBOL_GPL(pinmux_generic_get_function);
  */
 int pinmux_generic_add_function(struct pinctrl_dev *pctldev,
 				const char *name,
-				const char **groups,
+				const char * const *groups,
 				const unsigned int num_groups,
 				void *data)
 {
diff --git a/drivers/pinctrl/pinmux.h b/drivers/pinctrl/pinmux.h
index 78c3a31be882..72fcf03eaa43 100644
--- a/drivers/pinctrl/pinmux.h
+++ b/drivers/pinctrl/pinmux.h
@@ -129,7 +129,7 @@ static inline void pinmux_init_device_debugfs(struct dentry *devroot,
  */
 struct function_desc {
 	const char *name;
-	const char **group_names;
+	const char * const *group_names;
 	int num_group_names;
 	void *data;
 };
@@ -150,7 +150,7 @@ struct function_desc *pinmux_generic_get_function(struct pinctrl_dev *pctldev,
 
 int pinmux_generic_add_function(struct pinctrl_dev *pctldev,
 				const char *name,
-				const char **groups,
+				const char * const *groups,
 				unsigned const num_groups,
 				void *data);
 
-- 
2.31.1