ITCO_WDT selects I2C_I801 but does not select its dependencies (I2C.)
This can result in link-time failures:
drivers/built-in.o: In function `i801_remove':
i2c-i801.c:(.text+0x1a6126): undefined reference to `i2c_del_adapter'
drivers/built-in.o: In function `dmi_check_onboard_devices':
i2c-i801.c:(.text+0x1a7531): undefined reference to `i2c_new_device'
drivers/built-in.o: In function `i801_probe':
i2c-i801.c:(.text+0x1a7aa8): undefined reference to `i2c_add_adapter'
i2c-i801.c:(.text+0x1a7e14): undefined reference to `i2c_new_device'
So we must select I2C as well.
Reported-by: Jim Davis <jim.epost@xxxxxxxxx>
Signed-off-by: Jean Delvare <jdelvare@xxxxxxx>
Fixes: 2a7a0e9bf7 ("watchdog: iTCO_wdt: Add support for TCO on Intel Sunrisepoint")
Cc: Matt Fleming <matt.fleming@xxxxxxxxx>
Cc: Guenter Roeck <linux@xxxxxxxxxxxx>
Cc: Lee Jones <lee.jones@xxxxxxxxxx>
Cc: Wim Van Sebroeck <wim@xxxxxxxxx>
---
drivers/watchdog/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- linux-4.3-rc2.orig/drivers/watchdog/Kconfig 2015-09-24 11:43:29.959432358 +0200
+++ linux-4.3-rc2/drivers/watchdog/Kconfig 2015-09-25 09:56:20.518840112 +0200
@@ -818,6 +818,7 @@ config ITCO_WDT
depends on (X86 || IA64) && PCI
select WATCHDOG_CORE
select LPC_ICH if !EXPERT
+ select I2C if !EXPERT
select I2C_I801 if !EXPERT
---help---
Hardware driver for the intel TCO timer based watchdog devices.
--
Jean Delvare
SUSE L3 Support
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