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authorDavid Brownell <david-b@pacbell.net>2008-02-24 20:03:42 +0100
committerJean Delvare <khali@hyperion.delvare>2008-02-24 20:03:42 +0100
commit263867631ea02741baf878ca9faaf94b1563b9d7 (patch)
tree11875248c5115517ca1b328a630030461f0d00b1
parent104cb574feb3033299568483a3f68031f47e0d43 (diff)
i2c: Make i2c_register_board_info() a NOP when CONFIG_I2C_BOARDINFO=n
Don't require platform code to be #ifdeffed according to whether I2C is enabled or not ... if it's not enabled, let GCC compile out all I2C device declarations. (Issue noted on an NSLU2 build that didn't configure I2C.) Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
-rw-r--r--include/linux/i2c.h9
1 files changed, 8 insertions, 1 deletions
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 2d1c608eb5d..365e0df3646 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -271,9 +271,16 @@ extern void i2c_unregister_device(struct i2c_client *);
* This is done at arch_initcall time, before declaring any i2c adapters.
* Modules for add-on boards must use other calls.
*/
+#ifdef CONFIG_I2C_BOARDINFO
extern int
i2c_register_board_info(int busnum, struct i2c_board_info const *info, unsigned n);
-
+#else
+static inline int
+i2c_register_board_info(int busnum, struct i2c_board_info const *info, unsigned n)
+{
+ return 0;
+}
+#endif
/*
* The following structs are for those who like to implement new bus drivers: