i2c: make i2c_check_addr_validity() static

After previous refactoring, there is only one user in the same file
left. Make the function static now.

[wsa: added 'int' to bare 'unsigned']
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

drivers/i2c/i2c-core-base.c

@@ -517,7 +517,7 @@ static unsigned short i2c_encode_flags_to_addr(struct i2c_client *client)
 
 /* This is a permissive address validity check, I2C address map constraints
  * are purposely not enforced, except for the general call address. */
-int i2c_check_addr_validity(unsigned addr, unsigned short flags)
+static int i2c_check_addr_validity(unsigned int addr, unsigned short flags)
 {
 	if (flags & I2C_CLIENT_TEN) {
 		/* 10-bit address, all values are valid */

drivers/i2c/i2c-core.h

@@ -27,7 +27,6 @@ extern struct rw_semaphore	__i2c_board_lock;
 extern struct list_head	__i2c_board_list;
 extern int		__i2c_first_dynamic_bus_num;
 
-int i2c_check_addr_validity(unsigned addr, unsigned short flags);
 int i2c_check_7bit_addr_validity_strict(unsigned short addr);
 
 #ifdef CONFIG_ACPI