From: Colin Ian King <colin.k...@canonical.com>

The functions w1_ds2438_get_page, w1_ds2438_get_temperature,
w1_ds2438_change_config_bit and w1_ds2438_get_voltage are local to
the source and do not need to be in global scope, so make it static.

Cleans up sparse warnings:
symbol 'w1_ds2438_get_page' was not declared. Should it be static?
symbol 'w1_ds2438_get_temperature' was not declared. Should it be static?
symbol 'w1_ds2438_change_config_bit' was not declared. Should it be static?
symbol 'w1_ds2438_get_voltage' was not declared. Should it be static?

Signed-off-by: Colin Ian King <colin.k...@canonical.com>
---
 drivers/w1/slaves/w1_ds2438.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/w1/slaves/w1_ds2438.c b/drivers/w1/slaves/w1_ds2438.c
index 6487fb772a20..4753c91c579a 100644
--- a/drivers/w1/slaves/w1_ds2438.c
+++ b/drivers/w1/slaves/w1_ds2438.c
@@ -51,7 +51,7 @@
 #define DS2438_CURRENT_MSB             0x06
 #define DS2438_THRESHOLD               0x07
 
-int w1_ds2438_get_page(struct w1_slave *sl, int pageno, u8 *buf)
+static int w1_ds2438_get_page(struct w1_slave *sl, int pageno, u8 *buf)
 {
        unsigned int retries = W1_DS2438_RETRIES;
        u8 w1_buf[2];
@@ -85,7 +85,7 @@ int w1_ds2438_get_page(struct w1_slave *sl, int pageno, u8 
*buf)
        return -1;
 }
 
-int w1_ds2438_get_temperature(struct w1_slave *sl, int16_t *temperature)
+static int w1_ds2438_get_temperature(struct w1_slave *sl, int16_t *temperature)
 {
        unsigned int retries = W1_DS2438_RETRIES;
        u8 w1_buf[DS2438_PAGE_SIZE + 1 /*for CRC*/];
@@ -127,7 +127,7 @@ int w1_ds2438_get_temperature(struct w1_slave *sl, int16_t 
*temperature)
        return ret;
 }
 
-int w1_ds2438_change_config_bit(struct w1_slave *sl, u8 mask, u8 value)
+static int w1_ds2438_change_config_bit(struct w1_slave *sl, u8 mask, u8 value)
 {
        unsigned int retries = W1_DS2438_RETRIES;
        u8 w1_buf[3];
@@ -186,7 +186,8 @@ int w1_ds2438_change_config_bit(struct w1_slave *sl, u8 
mask, u8 value)
        return -1;
 }
 
-uint16_t w1_ds2438_get_voltage(struct w1_slave *sl, int adc_input, uint16_t 
*voltage)
+static uint16_t w1_ds2438_get_voltage(struct w1_slave *sl,
+                                     int adc_input, uint16_t *voltage)
 {
        unsigned int retries = W1_DS2438_RETRIES;
        u8 w1_buf[DS2438_PAGE_SIZE + 1 /*for CRC*/];
-- 
2.11.0

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