On Wed, Dec 16, 2020 at 10:07:38PM +0000, Nick Terrell wrote: [...] > It is very large. If it helps, in the commit message I’ve provided this link [0], > which provides the diff between upstream zstd as-is and the imported zstd, > which has been modified by the automated tooling to work in the kernel. > [0] https://github.com/terrelln/linux/commit/ac2ee65dcb7318afe426ad08f6a844faf3aebb41 I looks like you could remove a bit more dead code by noting __GNUC__ >= 4 (gcc-4.9 is currently the oldest supported [1]). [1] Documentation/process/changes.rst Best Regards Michał Mirosław