[PATCH 3.12 069/142] i2c: core: Export bus recovery functions

Jiri Slaby
2015-05-16T08:41:13Z

From: Mark Brown <broonie@kernel.org>

3.12-stable review patch. If anyone has any objections, please let me know.

===============

commit c1c21f4e60ed4523292f1a89ff45a208bddd3849 upstream.

Current -next fails to link an ARM allmodconfig because drivers that use
the core recovery functions can be built as modules but those functions
are not exported:

ERROR: "i2c_generic_gpio_recovery" [drivers/i2c/busses/i2c-davinci.ko] undefined!
ERROR: "i2c_generic_scl_recovery" [drivers/i2c/busses/i2c-davinci.ko] undefined!
ERROR: "i2c_recover_bus" [drivers/i2c/busses/i2c-davinci.ko] undefined!

Add exports to fix this.

Fixes: 5f9296ba21b3c (i2c: Add bus recovery infrastructure)
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
drivers/i2c/i2c-core.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 3be58f89ac77..b5de139920e3 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -212,6 +212,7 @@ int i2c_generic_scl_recovery(struct i2c_adapter *adap)
adap->bus_recovery_info->set_scl(adap, 1);
return i2c_generic_recovery(adap);
}
+EXPORT_SYMBOL_GPL(i2c_generic_scl_recovery);

int i2c_generic_gpio_recovery(struct i2c_adapter *adap)
{
@@ -226,6 +227,7 @@ int i2c_generic_gpio_recovery(struct i2c_adapter *adap)

return ret;
}
+EXPORT_SYMBOL_GPL(i2c_generic_gpio_recovery);

int i2c_recover_bus(struct i2c_adapter *adap)
{
@@ -235,6 +237,7 @@ int i2c_recover_bus(struct i2c_adapter *adap)
dev_dbg(&adap->dev, "Trying i2c bus recovery\n");
return adap->bus_recovery_info->recover_bus(adap);
}
+EXPORT_SYMBOL_GPL(i2c_recover_bus);

static int i2c_device_probe(struct device *dev)
{
--
2.3.7