CC: Linux Memory Management List <linux-mm(a)kvack.org>
TO: Dafna Hirschfeld <dafna.hirschfeld(a)collabora.com>
CC: Mauro Carvalho Chehab <mchehab(a)kernel.org>
CC: linux-media(a)vger.kernel.org
CC: Hans Verkuil <hverkuil(a)xs4all.nl>
tree:
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: 07f8c60fe60f84977dc815ec8a6b1100827c34dd
commit: ee1806beff85d4f1a3d7f22aa1bcdc8ffb59b36c [4811/8898] media: videobuf2: add
WARN_ON_ONCE if bytesused is bigger than buffer length
config: x86_64-randconfig-r026-20211220
(
https://download.01.org/0day-ci/archive/20211221/202112210449.O7OgseCD-lk...)
compiler: clang version 14.0.0 (
https://github.com/llvm/llvm-project
555eacf75f21cd1dfc6363d73ad187b730349543)
reproduce (this is a W=1 build):
wget
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
chmod +x ~/bin/make.cross
#
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commi...
git remote add linux-next
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
git fetch --no-tags linux-next master
git checkout ee1806beff85d4f1a3d7f22aa1bcdc8ffb59b36c
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir
ARCH=x86_64 SHELL=/bin/bash drivers/ fs// mm//
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
All warnings (new ones prefixed by >>):
> drivers/media/usb/s2255/s2255drv.o: warning: objtool:
read_pipe_completion()+0x151c: unreachable instruction
--
> drivers/media/usb/uvc/uvc_queue.o: warning: objtool:
uvc_queue_buffer_release()+0x1db: unreachable instruction
--
> drivers/media/usb/gspca/gspca.o: warning: objtool:
gspca_frame_add()+0x4d5: unreachable instruction
--
> drivers/media/usb/pwc/pwc-uncompress.o: warning: objtool:
pwc_decompress()+0x433: unreachable instruction
--
> drivers/media/usb/cx231xx/cx231xx-video.o: warning: objtool:
cx231xx_copy_video_line()+0x437: unreachable instruction
--
> drivers/media/pci/dt3155/dt3155.o: warning: objtool:
dt3155_buf_prepare()+0x97: unreachable instruction
--
> drivers/media/pci/tw5864/tw5864-video.o: warning: objtool:
tw5864_handle_frame_task()+0x6c8: unreachable instruction
--
> drivers/input/touchscreen/atmel_mxt_ts.o: warning: objtool:
mxt_buffer_queue()+0x5b2: unreachable instruction
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org