On Tue, Apr 10, 2018 at 10:38:06AM +0200, Tobias Regnery wrote:
> There is the following build error with CONFIG_TYPEC_UCSI=m, CONFIG_FTRACE=y
> and CONFIG_TRACING=n:
>
> ERROR: "__tracepoint_ucsi_command" [drivers/usb/typec/ucsi/typec_ucsi.ko] undefined!
> ERROR: "__tracepoint_ucsi_register_port" [drivers/usb/typec/ucsi/typec_ucsi.ko] undefined!
> ERROR: "__tracepoint_ucsi_notify" [drivers/usb/typec/ucsi/typec_ucsi.ko] undefined!
> ERROR: "__tracepoint_ucsi_reset_ppm" [drivers/usb/typec/ucsi/typec_ucsi.ko] undefined!
> ERROR: "__tracepoint_ucsi_run_command" [drivers/usb/typec/ucsi/typec_ucsi.ko] undefined!
> ERROR: "__tracepoint_ucsi_ack" [drivers/usb/typec/ucsi/typec_ucsi.ko] undefined!
> ERROR: "__tracepoint_ucsi_connector_change" [drivers/usb/typec/ucsi/typec_ucsi.ko] undefined!
>
> This compination is quite hard to create because CONFIG_TRACING gets selected
> only in rare cases without CONFIG_FTRACE.
>
> The build failure is caused by conditionally compiling trace.c depending on
> the wrong option CONFIG_FTRACE. Change this to depend on CONFIG_TRACING like
> other users of tracepoints do.
>
> Fixes: c1b0bc2dabfa ("usb: typec: Add support for UCSI interface")
> Signed-off-by: Tobias Regnery <tobias.regnery@xxxxxxxxx>
Acked-by: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
Thanks,
--
heikki
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