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Commit 3587f36a authored by Felipe Balbi's avatar Felipe Balbi
Browse files

usb: dwc3: debug: remove static char buffer from dwc3_decode_event() 



Instead, we can require caller to pass a buffer for the function to
use. This cleans things quite a bit.

Signed-off-by: default avatarFelipe Balbi <felipe.balbi@linux.intel.com>
parent e42f09b8

drivers/usb/dwc3/debug.h

+6 −7
Original line number Diff line number Diff line
@@ -173,9 +173,8 @@ static inline const char *dwc3_ep0_state_string(enum dwc3_ep0_state state) 
 * @event: the event code

 */

static inline const char *

dwc3_gadget_event_string(const struct dwc3_event_devt *event)

dwc3_gadget_event_string(char *str, const struct dwc3_event_devt *event)

{

	static char str[256];

	enum dwc3_link_state state = event->event_info & DWC3_LINK_STATE_MASK;



	switch (event->type) {
@@ -228,10 +227,10 @@ dwc3_gadget_event_string(const struct dwc3_event_devt *event) 
 * @event: then event code

 */

static inline const char *

dwc3_ep_event_string(const struct dwc3_event_depevt *event, u32 ep0state)

dwc3_ep_event_string(char *str, const struct dwc3_event_depevt *event,

		     u32 ep0state)

{

	u8 epnum = event->endpoint_number;

	static char str[256];

	size_t len;

	int status;

	int ret;
@@ -332,14 +331,14 @@ static inline const char *dwc3_gadget_event_type_string(u8 event) 
	}

}



static inline const char *dwc3_decode_event(u32 event, u32 ep0state)

static inline const char *dwc3_decode_event(char *str, u32 event, u32 ep0state)

{

	const union dwc3_event evt = (union dwc3_event) event;



	if (evt.type.is_devspec)

		return dwc3_gadget_event_string(&evt.devt);

		return dwc3_gadget_event_string(str, &evt.devt);

	else

		return dwc3_ep_event_string(&evt.depevt, ep0state);

		return dwc3_ep_event_string(str, &evt.depevt, ep0state);

}



static inline const char *dwc3_ep_cmd_status_string(int status)

drivers/usb/dwc3/trace.h

+3 −1
Original line number Diff line number Diff line
@@ -60,13 +60,15 @@ DECLARE_EVENT_CLASS(dwc3_log_event, 
	TP_STRUCT__entry(

		__field(u32, event)

		__field(u32, ep0state)

		__dynamic_array(char, str, DWC3_MSG_MAX)

	),

	TP_fast_assign(

		__entry->event = event;

		__entry->ep0state = dwc->ep0state;

	),

	TP_printk("event (%08x): %s", __entry->event,

			dwc3_decode_event(__entry->event, __entry->ep0state))

			dwc3_decode_event(__get_str(str), __entry->event,

					  __entry->ep0state))

);



DEFINE_EVENT(dwc3_log_event, dwc3_event,