Commit 02c8fec0 authored by Eddie James's avatar Eddie James Committed by Joel Stanley
Browse files

fsi: core: Add trace events for scan and unregister 



Add more trace events for the scanning and unregistration
functions for debug purposes.

Signed-off-by: default avatarEddie James <eajames@linux.ibm.com>
Reviewed-by: default avatarJoel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20230612195657.245125-9-eajames@linux.ibm.com


Signed-off-by: default avatarJoel Stanley <joel@jms.id.au>
parent 52300909

drivers/fsi/fsi-core.c

+4 −0
Original line number Diff line number Diff line
@@ -1199,6 +1199,7 @@ static int fsi_master_scan(struct fsi_master *master) 
{

	int link, rc;



	trace_fsi_master_scan(master, true);

	for (link = 0; link < master->n_links; link++) {

		rc = fsi_master_link_enable(master, link);

		if (rc) {
@@ -1240,6 +1241,7 @@ static int fsi_master_remove_slave(struct device *dev, void *arg) 


static void fsi_master_unscan(struct fsi_master *master)

{

	trace_fsi_master_scan(master, false);

	device_for_each_child(&master->dev, NULL, fsi_master_remove_slave);

}
@@ -1328,6 +1330,8 @@ EXPORT_SYMBOL_GPL(fsi_master_register); 


void fsi_master_unregister(struct fsi_master *master)

{

	trace_fsi_master_unregister(master);



	if (master->idx >= 0) {

		ida_simple_remove(&master_ida, master->idx);

		master->idx = -1;

include/trace/events/fsi.h

+31 −0
Original line number Diff line number Diff line
@@ -122,6 +122,37 @@ TRACE_EVENT(fsi_master_break, 
	)

);



TRACE_EVENT(fsi_master_scan,

	TP_PROTO(const struct fsi_master *master, bool scan),

	TP_ARGS(master, scan),

	TP_STRUCT__entry(

		__field(int,	master_idx)

		__field(int,	n_links)

		__field(bool,	scan)

	),

	TP_fast_assign(

		__entry->master_idx = master->idx;

		__entry->n_links = master->n_links;

		__entry->scan = scan;

	),

	TP_printk("fsi%d (%d links) %s", __entry->master_idx, __entry->n_links,

		  __entry->scan ? "scan" : "unscan")

);



TRACE_EVENT(fsi_master_unregister,

	TP_PROTO(const struct fsi_master *master),

	TP_ARGS(master),

	TP_STRUCT__entry(

		__field(int,	master_idx)

		__field(int,	n_links)

	),

	TP_fast_assign(

		__entry->master_idx = master->idx;

		__entry->n_links = master->n_links;

	),

	TP_printk("fsi%d (%d links)", __entry->master_idx, __entry->n_links)

);



TRACE_EVENT(fsi_slave_init,

	TP_PROTO(const struct fsi_slave *slave),

	TP_ARGS(slave),