From: Kuen-Han Tsai <khtsai@google.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Mathias Nyman <mathias.nyman@linux.intel.com>,
Alan Stern <stern@rowland.harvard.edu>
Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
Kuen-Han Tsai <khtsai@google.com>
Subject: [PATCH 0/2] usb: core: Improve device lifecycle debuggability
Date: Mon, 13 Oct 2025 10:01:21 +0800 [thread overview]
Message-ID: <20251013-usbcore-tracing-v1-0-b885a3121b09@google.com> (raw)
This series enhances USB core debuggability. The first patch refactors
device state updates into a new update_usb_device_state() helper
function, centralizing logic and preparing for tracing.
The second patch adds tracepoints for USB device allocation and state
changes, providing better visibility into the device lifecycle.
Signed-off-by: Kuen-Han Tsai <khtsai@google.com>
---
Kuen-Han Tsai (2):
usb: core: Centralize device state update logic
usb: core: Add tracepoints for device allocation and state changes
drivers/usb/core/Makefile | 4 ++++
drivers/usb/core/hub.c | 30 +++++++++++++----------
drivers/usb/core/trace.c | 6 +++++
drivers/usb/core/trace.h | 61 +++++++++++++++++++++++++++++++++++++++++++++++
drivers/usb/core/usb.c | 2 ++
5 files changed, 91 insertions(+), 12 deletions(-)
---
base-commit: 5472d60c129f75282d94ae5ad072ee6dfb7c7246
change-id: 20251012-usbcore-tracing-76f00c9b2b3e
Best regards,
--
Kuen-Han Tsai <khtsai@google.com>
next reply other threads:[~2025-10-13 2:01 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-13 2:01 Kuen-Han Tsai [this message]
2025-10-13 2:01 ` [PATCH 1/2] usb: core: Centralize device state update logic Kuen-Han Tsai
2025-10-13 13:16 ` Alan Stern
2025-10-14 0:06 ` Kuen-Han Tsai
2025-10-13 2:01 ` [PATCH 2/2] usb: core: Add tracepoints for device allocation and state changes Kuen-Han Tsai
2025-10-13 13:20 ` Alan Stern
2025-10-14 0:05 ` Kuen-Han Tsai
2025-10-14 3:24 ` Alan Stern
2025-10-14 5:17 ` Greg Kroah-Hartman
2025-10-14 7:57 ` Greg Kroah-Hartman
2025-10-14 19:37 ` Kuen-Han Tsai
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