mirror of https://gitee.com/openkylin/linux.git
e77c31ed60
There was a trouble with vb2-trace: instead of being part of VB2 core, it was stored at V4L2 videodev. That was wrong, as it doesn't actually belong to V4L2 core. Now that vb2 is not part of v4l2-core, its trace functions should be moved altogether. So, move it to its rightful place: at videobuf2-core. That fixes those errors: drivers/media/common/videobuf2/videobuf2-core.o: In function `__read_once_size': ./include/linux/compiler.h:183: undefined reference to `__tracepoint_vb2_buf_queue' ./include/linux/compiler.h:183: undefined reference to `__tracepoint_vb2_buf_queue' ./include/linux/compiler.h:183: undefined reference to `__tracepoint_vb2_buf_done' ./include/linux/compiler.h:183: undefined reference to `__tracepoint_vb2_buf_done' ./include/linux/compiler.h:183: undefined reference to `__tracepoint_vb2_qbuf' ./include/linux/compiler.h:183: undefined reference to `__tracepoint_vb2_qbuf' ./include/linux/compiler.h:183: undefined reference to `__tracepoint_vb2_dqbuf' ./include/linux/compiler.h:183: undefined reference to `__tracepoint_vb2_dqbuf' drivers/media/common/videobuf2/videobuf2-core.o:(__jump_table+0x10): undefined reference to `__tracepoint_vb2_buf_queue' drivers/media/common/videobuf2/videobuf2-core.o:(__jump_table+0x28): undefined reference to `__tracepoint_vb2_buf_done' drivers/media/common/videobuf2/videobuf2-core.o:(__jump_table+0x40): undefined reference to `__tracepoint_vb2_qbuf' drivers/media/common/videobuf2/videobuf2-core.o:(__jump_table+0x58): undefined reference to `__tracepoint_vb2_dqbuf' Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> |
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README
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.