Extern or forward variable declaration at include/linux/power_supply.h, line 246 References: drivers/power/ab8500_btemp.c, line 949 drivers/power/ab8500_charger.c, line 1813 drivers/power/ab8500_fg.c, line 2364 drivers/power/abx500_chargalg.c, line 1222 drivers/power/apm_power.c, line 82 drivers/power/power_supply_core.c, line 24 drivers/power/power_supply_core.c, line 25 drivers/power/power_supply_core.c, line 50 drivers/power/power_supply_core.c, line 89 drivers/power/power_supply_core.c, line 119 drivers/power/power_supply_core.c, line 154 drivers/power/power_supply_core.c, line 330 drivers/power/power_supply_core.c, line 390 drivers/power/power_supply_core.c, line 392 drivers/power/power_supply_core.c, line 393 drivers/power/power_supply_core.c, line 395 drivers/power/power_supply_core.c, line 403 include/linux/power_supply.h, line 246