linux-kernel - [PATCH] i2c: core: make exported functions non-static

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Date:   Mon,  8 Jul 2019 00:04:19 +0300
From:   Denis Efremov <efremov@...ux.com>
To:     Heiner Kallweit <hkallweit1@...il.com>
Cc:     Denis Efremov <efremov@...ux.com>,
        Wolfram Sang <wsa@...-dreams.de>,
        Peter Rosin <peda@...ntia.se>,
        Kieran Bingham <kieran.bingham+renesas@...asonboard.com>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] i2c: core: make exported functions non-static

The functions i2c_new_client_device and i2c_new_dummy_device are declared
static and marked EXPORT_SYMBOL_GPL(), which is at best an odd combination.
Because the functions were decided to be a part of API, this commit removes
the static attributes and adds the declarations to the header.

Fixes: 7159dbdae3c5 ("i2c: core: improve return value handling of i2c_new_device and i2c_new_dummy")
Signed-off-by: Denis Efremov <efremov@...ux.com>
---
 drivers/i2c/i2c-core-base.c | 4 ++--
 include/linux/i2c.h         | 7 +++++++
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c
index 9e43508d4567..7792fa40fc32 100644
--- a/drivers/i2c/i2c-core-base.c
+++ b/drivers/i2c/i2c-core-base.c
@@ -721,7 +721,7 @@ static int i2c_dev_irq_from_resources(const struct resource *resources,
  * This returns the new i2c client, which may be saved for later use with
  * i2c_unregister_device(); or an ERR_PTR to describe the error.
  */
-static struct i2c_client *
+struct i2c_client *
 i2c_new_client_device(struct i2c_adapter *adap, struct i2c_board_info const *info)
 {
 	struct i2c_client	*client;
@@ -887,7 +887,7 @@ static struct i2c_driver dummy_driver = {
  * This returns the new i2c client, which should be saved for later use with
  * i2c_unregister_device(); or an ERR_PTR to describe the error.
  */
-static struct i2c_client *
+struct i2c_client *
 i2c_new_dummy_device(struct i2c_adapter *adapter, u16 address)
 {
 	struct i2c_board_info info = {
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 1308126fc384..fa42f6f594ce 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -436,6 +436,10 @@ struct i2c_board_info {
 extern struct i2c_client *
 i2c_new_device(struct i2c_adapter *adap, struct i2c_board_info const *info);
 
+extern struct i2c_client *
+i2c_new_client_device(struct i2c_adapter *adap,
+			struct i2c_board_info const *info);
+
 /* If you don't know the exact address of an I2C device, use this variant
  * instead, which can probe for device presence in a list of possible
  * addresses. The "probe" callback function is optional. If it is provided,
@@ -457,6 +461,9 @@ extern int i2c_probe_func_quick_read(struct i2c_adapter *, unsigned short addr);
 extern struct i2c_client *
 i2c_new_dummy(struct i2c_adapter *adap, u16 address);
 
+extern struct i2c_client *
+i2c_new_dummy_device(struct i2c_adapter *adap, u16 address);
+
 extern struct i2c_client *
 devm_i2c_new_dummy_device(struct device *dev, struct i2c_adapter *adap, u16 address);
 
-- 
2.21.0