On Tue, Nov 10, 2020 at 03:16:01AM +0800, zengzhaoxiu@xxxxxxx wrote: > From: Zhaoxiu Zeng <zhaoxiu.zeng@xxxxxxxxx> > > Copying the matched bytes from the back output buffer is the > key code of the LZ decompression algorithm which used by zlib, lzo, etc. > > This patch introduce the optimized copy_from_back function. > The function will be used by later patches in this series. > > Optimization for a specific architecture will be available in the future. > > Signed-off-by: Zhaoxiu Zeng <zhaoxiu.zeng@xxxxxxxxx> Please use mandatory-y in include/asm-generic/Kbuild for the case where we have a sensible default that only a few architectures want to override.
