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23af840057
Surround i2c function declarations with ifdefs, so that they aren't advertised when i2c-core isn't actually built. That way, drivers using these functions unconditionally will result in an immediate build failure, rather than a late linking failure which is harder to figure out. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Paul Mundt <lethal@linux-sh.org>