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862e1aef2b
This is _not_ an upstream commit and just for 5.4.y only. kernel test robot reported a 5.4.y build issue found by randconfig [1] after backporting commit89b158635a("lib/lz4: explicitly support in-place decompression"") due to "undefined reference to `memmove'". However, upstream and 5.10 LTS seem fine. After digging further, I found commita510b61613("MIPS: Add support for ZSTD-compressed kernels") introduced memmove() occasionally and it has been included since v5.10. This partially cherry-picks the memmove() part of commita510b61613to fix the reported build regression since we don't need the whole patch for 5.4 LTS at all. [1] https://lore.kernel.org/r/202107070120.6dOj1kB7-lkp@intel.com/ Fixes:defcc2b5e5("lib/lz4: explicitly support in-place decompression") # 5.4.y Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
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.