On Thu, 2020-09-24 at 10:50 +0300, Felipe Balbi wrote: > Chunfeng Yun <chunfeng.yun@xxxxxxxxxxxx> writes: > > > Fix up the build error caused by undeclared usb_debug_root > > > > Cc: stable <stable@xxxxxxxxxxxxxxx> > > Fixes: a66ada4f241c("usb: gadget: bcm63xx_udc: create debugfs directory under usb root") > > Reported-by: kernel test robot <lkp@xxxxxxxxx> > > Signed-off-by: Chunfeng Yun <chunfeng.yun@xxxxxxxxxxxx> > > $ patch -p1 --dry-run p.patch > /usr/bin/patch: **** Only garbage was found in the patch input. > Please try to apply v2, https://patchwork.kernel.org/patch/11772911/ I indeed add a line code