[PATCH v2 1/5] usb/ohci: Move trace point and log ep number to help debugging

From: BALATON Zoltan <balaton@eik.bme.hu>
To: qemu-devel@nongnu.org
Cc: Gerd Hoffmann <kraxel@redhat.com>
Subject: [PATCH v2 1/5] usb/ohci: Move trace point and log ep number to help debugging
Date: Tue, 25 Jan 2022 14:33:20 +0100	[thread overview]
Message-ID: <4e3a05a64b5029a88654eab9a873fb45ac80b1a7.1643117600.git.balaton@eik.bme.hu> (raw)
In-Reply-To: <cover.1643117600.git.balaton@eik.bme.hu>

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
---
 hw/usb/hcd-ohci.c   | 14 +++++++-------
 hw/usb/trace-events |  2 +-
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/hw/usb/hcd-ohci.c b/hw/usb/hcd-ohci.c
index a93d6b2e98..f915cc5473 100644
--- a/hw/usb/hcd-ohci.c
+++ b/hw/usb/hcd-ohci.c
@@ -1033,21 +1033,21 @@ static int ohci_service_td(OHCIState *ohci, struct ohci_ed *ed)
         ohci->async_td = 0;
         ohci->async_complete = false;
     } else {
+        dev = ohci_find_device(ohci, OHCI_BM(ed->flags, ED_FA));
+        if (dev == NULL) {
+            trace_usb_ohci_td_dev_error();
+            return 1;
+        }
+        ep = usb_ep_get(dev, pid, OHCI_BM(ed->flags, ED_EN));
         if (ohci->async_td) {
             /* ??? The hardware should allow one active packet per
                endpoint.  We only allow one active packet per controller.
                This should be sufficient as long as devices respond in a
                timely manner.
             */
-            trace_usb_ohci_td_too_many_pending();
+            trace_usb_ohci_td_too_many_pending(ep->nr);
             return 1;
         }
-        dev = ohci_find_device(ohci, OHCI_BM(ed->flags, ED_FA));
-        if (dev == NULL) {
-            trace_usb_ohci_td_dev_error();
-            return 1;
-        }
-        ep = usb_ep_get(dev, pid, OHCI_BM(ed->flags, ED_EN));
         usb_packet_setup(&ohci->usb_packet, pid, ep, 0, addr, !flag_r,
                          OHCI_BM(td.flags, TD_DI) == 0);
         usb_packet_addbuf(&ohci->usb_packet, ohci->usb_buf, pktlen);
diff --git a/hw/usb/trace-events b/hw/usb/trace-events
index b8287b63f1..9773cb5330 100644
--- a/hw/usb/trace-events
+++ b/hw/usb/trace-events
@@ -51,7 +51,7 @@ usb_ohci_td_skip_async(void) ""
 usb_ohci_td_pkt_hdr(uint32_t addr, int64_t pktlen, int64_t len, const char *s, int flag_r, uint32_t cbp, uint32_t be) " TD @ 0x%.8x %" PRId64 " of %" PRId64 " bytes %s r=%d cbp=0x%.8x be=0x%.8x"
 usb_ohci_td_pkt_short(const char *dir, const char *buf) "%s data: %s"
 usb_ohci_td_pkt_full(const char *dir, const char *buf) "%s data: %s"
-usb_ohci_td_too_many_pending(void) ""
+usb_ohci_td_too_many_pending(int ep) "ep=%d"
 usb_ohci_td_packet_status(int status) "status=%d"
 usb_ohci_ed_read_error(uint32_t addr) "ED read error at 0x%x"
 usb_ohci_ed_pkt(uint32_t cur, int h, int c, uint32_t head, uint32_t tail, uint32_t next) "ED @ 0x%.8x h=%u c=%u\n  head=0x%.8x tailp=0x%.8x next=0x%.8x"
-- 
2.30.2


