FYI, as mentioned last time: clear NAK for letting these bad APIs
slip into the overall kernel code. Please provide proper kernel style
wrappers to avoid these kinds of updates and in the future just change
APIs on an as-needed basis.
From: Nick Terrell
This patchset upgrades the zstd library to the latest upstream release. The
current zstd version in the kernel is a modified version of upstream zstd-1.3.1.
At the time it was integrated, zstd wasn't ready to be used in the kernel as-is.
But, it is now possible to use upstream
