Hi, >On Thu, Feb 14, 2019 at 07:45:10PM +0000, Pawel Laszczak wrote: >> Patch moves some decoding functions from driver/usb/dwc3/debug.h driver >> to driver/usb/common/debug.c file. These moved functions include: >> dwc3_decode_get_status >> dwc3_decode_set_clear_feature >> dwc3_decode_set_address >> dwc3_decode_get_set_descriptor >> dwc3_decode_get_configuration >> dwc3_decode_set_configuration >> dwc3_decode_get_intf >> dwc3_decode_set_intf >> dwc3_decode_synch_frame >> dwc3_decode_set_sel >> dwc3_decode_set_isoch_delay >> dwc3_decode_ctrl >> >> These functions are used also in inroduced cdns3 driver. >> >> All functions prefixes were changed from dwc3 to usb. >> Also, function's parameters has been extended according to the name >> of fields in standard SETUP packet. >> Additionally, patch adds usb_decode_ctrl function to >> include/linux/usb/ch9.h file. >> >> Signed-off-by: Pawel Laszczak <pawell@xxxxxxxxxxx> >> --- >> drivers/usb/common/Makefile | 2 +- >> drivers/usb/common/debug.c | 270 ++++++++++++++++++++++++++++++++++++ >> drivers/usb/dwc3/debug.h | 249 --------------------------------- >> drivers/usb/dwc3/trace.h | 2 +- >> include/linux/usb/ch9.h | 25 ++++ >> 5 files changed, 297 insertions(+), 251 deletions(-) >> create mode 100644 drivers/usb/common/debug.c >> >> diff --git a/drivers/usb/common/Makefile b/drivers/usb/common/Makefile >> index fb4d5ef4165c..3d3d2962ea4b 100644 >> --- a/drivers/usb/common/Makefile >> +++ b/drivers/usb/common/Makefile >> @@ -4,7 +4,7 @@ >> # >> >> obj-$(CONFIG_USB_COMMON) += usb-common.o >> -usb-common-y += common.o >> +usb-common-y += common.o debug.o > >It's nice to have these in a common place, but you just bloated all of >the USB-enabled systems in the world for the use of 2 odd-ball system >controllers that almost no one has :) > >So, any way to only pull in this file if you actually need these >functions? > Yes, I'm using these functions a lot for debugging. It's only way to check what driver does. We are also going to upstreaming 3.1 controller so there will be a third driver using them :). I'm not sure If anyone will use them on host side, so we can consider whether they should be in usb/common directory. Maybe usb/gadget will be better place. Felipe, do you have any comments in this topic? Thanks Pawel