Hi oushixiong, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: f8dba31b0a826e691949cd4fdfa5c30defaac8c5 commit: 4ae47770d57bff0193fbbf48d56c18759cad5f6e media: mtk-jpegenc: Fix a compilation issue date: 3 months ago config: hexagon-buildonly-randconfig-r003-20230606 (https://download.01.org/0day-ci/archive/20230606/202306061523.AFZiNh4D-lkp@xxxxxxxxx/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a) reproduce (this is a W=1 build): mkdir -p ~/bin 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/torvalds/linux.git/commit/?id=4ae47770d57bff0193fbbf48d56c18759cad5f6e git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 4ae47770d57bff0193fbbf48d56c18759cad5f6e # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ~/bin/make.cross W=1 O=build_dir ARCH=hexagon olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ~/bin/make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash arch/hexagon/kernel/ drivers/media/platform/mediatek/jpeg/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202306061523.AFZiNh4D-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c:11: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/hexagon/include/asm/io.h:334: include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 547 | val = __raw_readb(PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 560 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu' 37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) | ^ In file included from drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c:11: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/hexagon/include/asm/io.h:334: include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 573 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu' 35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) | ^ In file included from drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c:11: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/hexagon/include/asm/io.h:334: include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 584 | __raw_writeb(value, PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 594 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 604 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c:31:28: warning: unused variable 'mtk_jpeg_enc_formats' [-Wunused-variable] 31 | static struct mtk_jpeg_fmt mtk_jpeg_enc_formats[] = { | ^ drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c:79:28: warning: unused variable 'mtk_jpeg_dec_formats' [-Wunused-variable] 79 | static struct mtk_jpeg_fmt mtk_jpeg_dec_formats[] = { | ^ >> drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c:614:36: warning: unused variable 'mtk_jpeg_enc_ioctl_ops' [-Wunused-const-variable] 614 | static const struct v4l2_ioctl_ops mtk_jpeg_enc_ioctl_ops = { | ^ >> drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c:644:36: warning: unused variable 'mtk_jpeg_dec_ioctl_ops' [-Wunused-const-variable] 644 | static const struct v4l2_ioctl_ops mtk_jpeg_dec_ioctl_ops = { | ^ >> drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c:884:29: warning: unused variable 'mtk_jpeg_dec_qops' [-Wunused-const-variable] 884 | static const struct vb2_ops mtk_jpeg_dec_qops = { | ^ >> drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c:893:29: warning: unused variable 'mtk_jpeg_enc_qops' [-Wunused-const-variable] 893 | static const struct vb2_ops mtk_jpeg_enc_qops = { | ^ >> drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c:1366:34: warning: unused variable 'mtk_jpeg_enc_m2m_ops' [-Wunused-const-variable] 1366 | static const struct v4l2_m2m_ops mtk_jpeg_enc_m2m_ops = { | ^ >> drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c:1370:34: warning: unused variable 'mtk_jpeg_multicore_enc_m2m_ops' [-Wunused-const-variable] 1370 | static const struct v4l2_m2m_ops mtk_jpeg_multicore_enc_m2m_ops = { | ^ >> drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c:1374:34: warning: unused variable 'mtk_jpeg_multicore_dec_m2m_ops' [-Wunused-const-variable] 1374 | static const struct v4l2_m2m_ops mtk_jpeg_multicore_dec_m2m_ops = { | ^ >> drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c:1378:34: warning: unused variable 'mtk_jpeg_dec_m2m_ops' [-Wunused-const-variable] 1378 | static const struct v4l2_m2m_ops mtk_jpeg_dec_m2m_ops = { | ^ drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c:1461:20: warning: unused function 'mtk_jpeg_enc_irq' [-Wunused-function] 1461 | static irqreturn_t mtk_jpeg_enc_irq(int irq, void *priv) | ^ drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c:1481:20: warning: unused function 'mtk_jpeg_dec_irq' [-Wunused-function] 1481 | static irqreturn_t mtk_jpeg_dec_irq(int irq, void *priv) | ^ drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c:1645:29: warning: unused variable 'mt8173_jpeg_dec_clocks' [-Wunused-variable] 1645 | static struct clk_bulk_data mt8173_jpeg_dec_clocks[] = { | ^ drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c:1650:29: warning: unused variable 'mtk_jpeg_clocks' [-Wunused-variable] 1650 | static struct clk_bulk_data mtk_jpeg_clocks[] = { | ^ 20 warnings generated. vim +/mtk_jpeg_enc_ioctl_ops +614 drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c 52f68114857fe5 drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c kyrie wu 2022-09-29 613 45f13a57d81344 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Xia Jiang 2020-08-14 @614 static const struct v4l2_ioctl_ops mtk_jpeg_enc_ioctl_ops = { 45f13a57d81344 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Xia Jiang 2020-08-14 615 .vidioc_querycap = mtk_jpeg_querycap, 45f13a57d81344 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Xia Jiang 2020-08-14 616 .vidioc_enum_fmt_vid_cap = mtk_jpeg_enum_fmt_vid_cap, 45f13a57d81344 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Xia Jiang 2020-08-14 617 .vidioc_enum_fmt_vid_out = mtk_jpeg_enum_fmt_vid_out, 45f13a57d81344 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Xia Jiang 2020-08-14 618 .vidioc_try_fmt_vid_cap_mplane = mtk_jpeg_try_fmt_vid_cap_mplane, 45f13a57d81344 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Xia Jiang 2020-08-14 619 .vidioc_try_fmt_vid_out_mplane = mtk_jpeg_try_fmt_vid_out_mplane, 45f13a57d81344 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Xia Jiang 2020-08-14 620 .vidioc_g_fmt_vid_cap_mplane = mtk_jpeg_g_fmt_vid_mplane, 45f13a57d81344 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Xia Jiang 2020-08-14 621 .vidioc_g_fmt_vid_out_mplane = mtk_jpeg_g_fmt_vid_mplane, 45f13a57d81344 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Xia Jiang 2020-08-14 622 .vidioc_s_fmt_vid_cap_mplane = mtk_jpeg_s_fmt_vid_cap_mplane, 45f13a57d81344 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Xia Jiang 2020-08-14 623 .vidioc_s_fmt_vid_out_mplane = mtk_jpeg_s_fmt_vid_out_mplane, 45f13a57d81344 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Xia Jiang 2020-08-14 624 .vidioc_qbuf = v4l2_m2m_ioctl_qbuf, 45f13a57d81344 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Xia Jiang 2020-08-14 625 .vidioc_subscribe_event = mtk_jpeg_subscribe_event, 45f13a57d81344 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Xia Jiang 2020-08-14 626 .vidioc_g_selection = mtk_jpeg_enc_g_selection, 45f13a57d81344 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Xia Jiang 2020-08-14 627 .vidioc_s_selection = mtk_jpeg_enc_s_selection, 45f13a57d81344 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Xia Jiang 2020-08-14 628 45f13a57d81344 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Xia Jiang 2020-08-14 629 .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs, 45f13a57d81344 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Xia Jiang 2020-08-14 630 .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf, 45f13a57d81344 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Xia Jiang 2020-08-14 631 .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs, 45f13a57d81344 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Xia Jiang 2020-08-14 632 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf, 45f13a57d81344 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Xia Jiang 2020-08-14 633 .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf, 45f13a57d81344 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Xia Jiang 2020-08-14 634 .vidioc_expbuf = v4l2_m2m_ioctl_expbuf, 45f13a57d81344 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Xia Jiang 2020-08-14 635 .vidioc_streamon = v4l2_m2m_ioctl_streamon, 45f13a57d81344 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Xia Jiang 2020-08-14 636 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff, 45f13a57d81344 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Xia Jiang 2020-08-14 637 45f13a57d81344 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Xia Jiang 2020-08-14 638 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 8f1f08a6337efe drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c kyrie wu 2022-09-29 639 8f1f08a6337efe drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c kyrie wu 2022-09-29 640 .vidioc_encoder_cmd = v4l2_m2m_ioctl_encoder_cmd, 8f1f08a6337efe drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c kyrie wu 2022-09-29 641 .vidioc_try_encoder_cmd = v4l2_m2m_ioctl_try_encoder_cmd, 45f13a57d81344 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Xia Jiang 2020-08-14 642 }; 45f13a57d81344 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Xia Jiang 2020-08-14 643 2ac8015f156b55 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Xia Jiang 2020-08-14 @644 static const struct v4l2_ioctl_ops mtk_jpeg_dec_ioctl_ops = { b2f0d2724ba477 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Rick Chang 2016-12-14 645 .vidioc_querycap = mtk_jpeg_querycap, 7e98b7b542a456 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Boris Brezillon 2019-06-04 646 .vidioc_enum_fmt_vid_cap = mtk_jpeg_enum_fmt_vid_cap, 7e98b7b542a456 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Boris Brezillon 2019-06-04 647 .vidioc_enum_fmt_vid_out = mtk_jpeg_enum_fmt_vid_out, b2f0d2724ba477 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Rick Chang 2016-12-14 648 .vidioc_try_fmt_vid_cap_mplane = mtk_jpeg_try_fmt_vid_cap_mplane, b2f0d2724ba477 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Rick Chang 2016-12-14 649 .vidioc_try_fmt_vid_out_mplane = mtk_jpeg_try_fmt_vid_out_mplane, b2f0d2724ba477 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Rick Chang 2016-12-14 650 .vidioc_g_fmt_vid_cap_mplane = mtk_jpeg_g_fmt_vid_mplane, b2f0d2724ba477 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Rick Chang 2016-12-14 651 .vidioc_g_fmt_vid_out_mplane = mtk_jpeg_g_fmt_vid_mplane, b2f0d2724ba477 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Rick Chang 2016-12-14 652 .vidioc_s_fmt_vid_cap_mplane = mtk_jpeg_s_fmt_vid_cap_mplane, b2f0d2724ba477 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Rick Chang 2016-12-14 653 .vidioc_s_fmt_vid_out_mplane = mtk_jpeg_s_fmt_vid_out_mplane, 52f68114857fe5 drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c kyrie wu 2022-09-29 654 .vidioc_qbuf = mtk_jpeg_qbuf, b2f0d2724ba477 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Rick Chang 2016-12-14 655 .vidioc_subscribe_event = mtk_jpeg_subscribe_event, 2ac8015f156b55 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Xia Jiang 2020-08-14 656 .vidioc_g_selection = mtk_jpeg_dec_g_selection, b2f0d2724ba477 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Rick Chang 2016-12-14 657 b2f0d2724ba477 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Rick Chang 2016-12-14 658 .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs, b2f0d2724ba477 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Rick Chang 2016-12-14 659 .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf, b2f0d2724ba477 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Rick Chang 2016-12-14 660 .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs, b2f0d2724ba477 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Rick Chang 2016-12-14 661 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf, b2f0d2724ba477 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Rick Chang 2016-12-14 662 .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf, b2f0d2724ba477 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Rick Chang 2016-12-14 663 .vidioc_expbuf = v4l2_m2m_ioctl_expbuf, b2f0d2724ba477 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Rick Chang 2016-12-14 664 .vidioc_streamon = v4l2_m2m_ioctl_streamon, b2f0d2724ba477 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Rick Chang 2016-12-14 665 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff, b2f0d2724ba477 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Rick Chang 2016-12-14 666 b2f0d2724ba477 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Rick Chang 2016-12-14 667 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, bf8460d2f4e6a1 drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c kyrie wu 2022-09-29 668 bf8460d2f4e6a1 drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c kyrie wu 2022-09-29 669 .vidioc_decoder_cmd = v4l2_m2m_ioctl_decoder_cmd, bf8460d2f4e6a1 drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c kyrie wu 2022-09-29 670 .vidioc_try_decoder_cmd = v4l2_m2m_ioctl_try_decoder_cmd, b2f0d2724ba477 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Rick Chang 2016-12-14 671 }; b2f0d2724ba477 drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c Rick Chang 2016-12-14 672 :::::: The code at line 614 was first introduced by commit :::::: 45f13a57d8134459f02fbee0b1711eddc3260af7 media: platform: Add jpeg enc feature :::::: TO: Xia Jiang <xia.jiang@xxxxxxxxxxxx> :::::: CC: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
