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Commit 46f5ed75 authored by Krzysztof Halasa's avatar Krzysztof Halasa Committed by Greg Kroah-Hartman
Browse files

[PATCH] i2c: Mark block write buffers as const 



The attached patch marks i2c_smbus_write_block_data() and
i2c_smbus_write_i2c_block_data() buffers as const.

Signed-off-by: default avatarKrzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: default avatarJean Delvare <khali@linux-fr.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 1ded969f

drivers/i2c/i2c-core.c

+2 −2
Original line number Diff line number Diff line
@@ -916,7 +916,7 @@ s32 i2c_smbus_write_word_data(struct i2c_client *client, u8 command, u16 value) 
}



s32 i2c_smbus_write_block_data(struct i2c_client *client, u8 command,

			       u8 length, u8 *values)

			       u8 length, const u8 *values)

{

	union i2c_smbus_data data;
@@ -944,7 +944,7 @@ s32 i2c_smbus_read_i2c_block_data(struct i2c_client *client, u8 command, u8 *val 
}



s32 i2c_smbus_write_i2c_block_data(struct i2c_client *client, u8 command,

				   u8 length, u8 *values)

				   u8 length, const u8 *values)

{

	union i2c_smbus_data data;

include/linux/i2c.h

+2 −2
Original line number Diff line number Diff line
@@ -97,13 +97,13 @@ extern s32 i2c_smbus_write_word_data(struct i2c_client * client, 
                                     u8 command, u16 value);

extern s32 i2c_smbus_write_block_data(struct i2c_client * client,

				      u8 command, u8 length,

				      u8 *values);

				      const u8 *values);

/* Returns the number of read bytes */

extern s32 i2c_smbus_read_i2c_block_data(struct i2c_client * client,

					 u8 command, u8 *values);

extern s32 i2c_smbus_write_i2c_block_data(struct i2c_client * client,

					  u8 command, u8 length,

					  u8 *values);

					  const u8 *values);



/*

 * A driver is capable of handling one or more physical devices present on