when debug USB gadget issue, it is better to understand what configuration was done from user space. v3->v4: split into three changes v2->v3: add more change log v1->v2: fix typo tree -> three of subject line Linyu Yuan (3): usb: gadget: configfs: add UDC trace entry usb: gadget: configfs: add function link trace entry usb: gadget: configfs: add function unlink trace entry drivers/usb/gadget/Makefile | 1 + drivers/usb/gadget/configfs.c | 11 ++++++ drivers/usb/gadget/configfs_trace.c | 7 ++++ drivers/usb/gadget/configfs_trace.h | 73 +++++++++++++++++++++++++++++++++++++ 4 files changed, 92 insertions(+) create mode 100644 drivers/usb/gadget/configfs_trace.c create mode 100644 drivers/usb/gadget/configfs_trace.h -- 2.7.4
