releases/3.19.7/i2c-core-export-bus-recovery-functions.patch

   1 From c1c21f4e60ed4523292f1a89ff45a208bddd3849 Mon Sep 17 00:00:00 2001
   2 From: Mark Brown <broonie@kernel.org>
   3 Date: Wed, 15 Apr 2015 19:18:39 +0100
   4 Subject: i2c: core: Export bus recovery functions
   5
   6 From: Mark Brown <broonie@kernel.org>
   7
   8 commit c1c21f4e60ed4523292f1a89ff45a208bddd3849 upstream.
   9
  10 Current -next fails to link an ARM allmodconfig because drivers that use
  11 the core recovery functions can be built as modules but those functions
  12 are not exported:
  13
  14 ERROR: "i2c_generic_gpio_recovery" [drivers/i2c/busses/i2c-davinci.ko] undefined!
  15 ERROR: "i2c_generic_scl_recovery" [drivers/i2c/busses/i2c-davinci.ko] undefined!
  16 ERROR: "i2c_recover_bus" [drivers/i2c/busses/i2c-davinci.ko] undefined!
  17
  18 Add exports to fix this.
  19
  20 Fixes: 5f9296ba21b3c (i2c: Add bus recovery infrastructure)
  21 Signed-off-by: Mark Brown <broonie@kernel.org>
  22 Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
  23 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  24
  25 ---
  26  drivers/i2c/i2c-core.c |    3 +++
  27  1 file changed, 3 insertions(+)
  28
  29 --- a/drivers/i2c/i2c-core.c
  30 +++ b/drivers/i2c/i2c-core.c
  31 @@ -596,6 +596,7 @@ int i2c_generic_scl_recovery(struct i2c_
  32         adap->bus_recovery_info->set_scl(adap, 1);
  33         return i2c_generic_recovery(adap);
  34  }
  35 +EXPORT_SYMBOL_GPL(i2c_generic_scl_recovery);
  36
  37  int i2c_generic_gpio_recovery(struct i2c_adapter *adap)
  38  {
  39 @@ -610,6 +611,7 @@ int i2c_generic_gpio_recovery(struct i2c
  40
  41         return ret;
  42  }
  43 +EXPORT_SYMBOL_GPL(i2c_generic_gpio_recovery);
  44
  45  int i2c_recover_bus(struct i2c_adapter *adap)
  46  {
  47 @@ -619,6 +621,7 @@ int i2c_recover_bus(struct i2c_adapter *
  48         dev_dbg(&adap->dev, "Trying i2c bus recovery\n");
  49         return adap->bus_recovery_info->recover_bus(adap);
  50  }
  51 +EXPORT_SYMBOL_GPL(i2c_recover_bus);
  52
  53  static int i2c_device_probe(struct device *dev)
  54  {