[PATCH 8/8] usb: musb: trace: reduce buffer usage of trace event
From: Linyu Yuan <hidden>
Date: 2023-09-14 10:04:01
Also in:
linux-usb
Subsystem:
musb multipoint high speed dual-role controller, the rest, usb subsystem · Maintainers:
Bin Liu, Linus Torvalds, Greg Kroah-Hartman
Save u32 member into trace event ring buffer and parse it for possible bit information. Use DECLARE_EVENT_CLASS_PRINT_INIT() related macro for output stage. Signed-off-by: Linyu Yuan <redacted> --- drivers/usb/musb/musb_trace.h | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/drivers/usb/musb/musb_trace.h b/drivers/usb/musb/musb_trace.h
index f246b14394c4..8add5e81ed8d 100644
--- a/drivers/usb/musb/musb_trace.h
+++ b/drivers/usb/musb/musb_trace.h@@ -233,7 +233,7 @@ DEFINE_EVENT(musb_urb, musb_urb_deq, TP_ARGS(musb, urb) ); -DECLARE_EVENT_CLASS(musb_req, +DECLARE_EVENT_CLASS_PRINT_INIT(musb_req, TP_PROTO(struct musb_request *req), TP_ARGS(req), TP_STRUCT__entry(
@@ -243,9 +243,7 @@ DECLARE_EVENT_CLASS(musb_req, __field(int, status) __field(unsigned int, buf_len) __field(unsigned int, actual_len) - __field(unsigned int, zero) - __field(unsigned int, short_not_ok) - __field(unsigned int, no_interrupt) + __field(u32, rdw1) ), TP_fast_assign( __entry->req = &req->request;
@@ -254,18 +252,20 @@ DECLARE_EVENT_CLASS(musb_req, __entry->status = req->request.status; __entry->buf_len = req->request.length; __entry->actual_len = req->request.actual; - __entry->zero = req->request.zero; - __entry->short_not_ok = req->request.short_not_ok; - __entry->no_interrupt = req->request.no_interrupt; + __entry->rdw1 = req->request.dw1; ), TP_printk("%p, ep%d %s, %s%s%s, len %d/%d, status %d", __entry->req, __entry->epnum, __entry->is_tx ? "tx/IN" : "rx/OUT", - __entry->zero ? "Z" : "z", - __entry->short_not_ok ? "S" : "s", - __entry->no_interrupt ? "I" : "i", + tr.zero ? "Z" : "z", + tr.short_not_ok ? "S" : "s", + tr.no_interrupt ? "I" : "i", __entry->actual_len, __entry->buf_len, __entry->status + ), + TP_printk_init( + struct usb_request tr; + tr.dw1 = __entry->rdw1; ) );
--
2.17.1