Hi Yunke, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on media-tree/master] [also build test WARNING on linus/master v6.1-rc2 next-20221025] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Yunke-Cao/media-Implement-UVC-v1-5-ROI/20221025-135821 base: git://linuxtv.org/media_tree.git master patch link: https://lore.kernel.org/r/20221025055528.1117251-6-yunkec%40google.com patch subject: [PATCH v9 05/11] media: uvcvideo: Add support for compound controls config: riscv-randconfig-r042-20221025 (attached as .config) compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 791a7ae1ba3efd6bca96338e10ffde557ba83920) 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 # install riscv cross compiling tool for clang build # apt-get install binutils-riscv64-linux-gnu # https://github.com/intel-lab-lkp/linux/commit/732343da19acba5e984f7e545a40c08e40000fc3 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Yunke-Cao/media-Implement-UVC-v1-5-ROI/20221025-135821 git checkout 732343da19acba5e984f7e545a40c08e40000fc3 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash drivers/media/usb/uvc/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): include/asm-generic/io.h:743:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] insb(addr, buffer, count); ^~~~~~~~~~~~~~~~~~~~~~~~~ arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) ~~~~~~~~~~ ^ In file included from drivers/media/usb/uvc/uvc_ctrl.c:14: In file included from include/linux/usb.h:16: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from ./arch/riscv/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/riscv/include/asm/io.h:136: include/asm-generic/io.h:751:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] insw(addr, buffer, count); ^~~~~~~~~~~~~~~~~~~~~~~~~ arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) ~~~~~~~~~~ ^ In file included from drivers/media/usb/uvc/uvc_ctrl.c:14: In file included from include/linux/usb.h:16: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from ./arch/riscv/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/riscv/include/asm/io.h:136: include/asm-generic/io.h:759:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] insl(addr, buffer, count); ^~~~~~~~~~~~~~~~~~~~~~~~~ arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) ~~~~~~~~~~ ^ In file included from drivers/media/usb/uvc/uvc_ctrl.c:14: In file included from include/linux/usb.h:16: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from ./arch/riscv/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/riscv/include/asm/io.h:136: include/asm-generic/io.h:768:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] outsb(addr, buffer, count); ^~~~~~~~~~~~~~~~~~~~~~~~~~ arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) ~~~~~~~~~~ ^ In file included from drivers/media/usb/uvc/uvc_ctrl.c:14: In file included from include/linux/usb.h:16: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from ./arch/riscv/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/riscv/include/asm/io.h:136: include/asm-generic/io.h:777:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] outsw(addr, buffer, count); ^~~~~~~~~~~~~~~~~~~~~~~~~~ arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) ~~~~~~~~~~ ^ In file included from drivers/media/usb/uvc/uvc_ctrl.c:14: In file included from include/linux/usb.h:16: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from ./arch/riscv/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/riscv/include/asm/io.h:136: include/asm-generic/io.h:786:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] outsl(addr, buffer, count); ^~~~~~~~~~~~~~~~~~~~~~~~~~ arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) ~~~~~~~~~~ ^ In file included from drivers/media/usb/uvc/uvc_ctrl.c:14: In file included from include/linux/usb.h:16: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from ./arch/riscv/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/riscv/include/asm/io.h:136: include/asm-generic/io.h:1134:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; ~~~~~~~~~~ ^ drivers/media/usb/uvc/uvc_ctrl.c:1847:5: warning: no previous prototype for function '__uvc_ctrl_get_boundary_std' [-Wmissing-prototypes] int __uvc_ctrl_get_boundary_std(struct uvc_video_chain *chain, ^ drivers/media/usb/uvc/uvc_ctrl.c:1847:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int __uvc_ctrl_get_boundary_std(struct uvc_video_chain *chain, ^ static >> drivers/media/usb/uvc/uvc_ctrl.c:1909:5: warning: no previous prototype for function '__uvc_ctrl_set_compound' [-Wmissing-prototypes] int __uvc_ctrl_set_compound(struct uvc_control_mapping *mapping, ^ drivers/media/usb/uvc/uvc_ctrl.c:1909:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int __uvc_ctrl_set_compound(struct uvc_control_mapping *mapping, ^ static 15 warnings generated. vim +/__uvc_ctrl_set_compound +1909 drivers/media/usb/uvc/uvc_ctrl.c 1908 > 1909 int __uvc_ctrl_set_compound(struct uvc_control_mapping *mapping, 1910 struct v4l2_ext_control *xctrl, 1911 struct uvc_control *ctrl) 1912 { 1913 u8 *data; 1914 int ret; 1915 1916 if (xctrl->size != mapping->v4l2_size / 8) 1917 return -EINVAL; 1918 1919 data = kmalloc(xctrl->size, GFP_KERNEL); 1920 if (!data) 1921 return -ENOMEM; 1922 1923 ret = copy_from_user(data, xctrl->ptr, xctrl->size); 1924 if (ret < 0) 1925 goto out; 1926 1927 ret = mapping->set_compound(mapping, data, 1928 uvc_ctrl_data(ctrl, UVC_CTRL_DATA_CURRENT)); 1929 1930 __uvc_ctrl_get_compound(mapping, ctrl, UVC_CTRL_DATA_CURRENT, xctrl); 1931 1932 out: 1933 kfree(data); 1934 return ret; 1935 } 1936 -- 0-DAY CI Kernel Test Service https://01.org/lkp
Attachment:
.config.gz
Description: application/gzip
