Bryan O'Donoghue 5c8ad599b9 greybus: operation, core: hook tracepoints into message opertions ... This patch hooks tracepoints for greybus messages - trace_gb_message_send - trace_gb_message_recv_request - trace_gb_message_recv_response - trace_gb_message_cancel_outgoing - trace_gb_message_cancel_incoming It provides standard tracepoints at /sys/kernel/debug/tracing/events/greybus/gb_message_send /sys/kernel/debug/tracing/events/greybus/gb_message_recv_response /sys/kernel/debug/tracing/events/greybus/gb_message_recv_request /sys/kernel/debug/tracing/events/greybus/gb_message_cancel_outgoing /sys/kernel/debug/tracing/events/greybus/gb_message_cancel_incoming Giving outputs like gb_message_recv_request: greybus:1-1.1:0 op=0001 if_id=0000 hd_id=0000 l=2 gb_message_send: greybus:1-1.1:0 op=0001 if_id=0000 hd_id=0000 l=2 Similarly perf events can be viewed with standard perf tools e.g. root@beaglebone:~# perf list 'greybus:*' greybus:gb_message_send [Tracepoint event] greybus:gb_message_recv_request [Tracepoint event] greybus:gb_message_recv_response [Tracepoint event] greybus:gb_message_cancel_outgoing [Tracepoint event] greybus:gb_message_cancel_incoming [Tracepoint event] Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>		2015-09-18 14:07:28 -07:00
drivers/staging/greybus	greybus: operation, core: hook tracepoints into message opertions	2015-09-18 14:07:28 -07:00