en Copyright 2015 Java http://kernelsources.org:8080/source/history/linux/rust/zerocopy/src/ref.rs#499dc02cd545258b8ebd6f52fac226c6263768e9 rust: zerocopy: add SPDX License IdentifiersOriginally, when the Rust upstream `alloc` standard library crate wasvendored, the SPDX License Identifiers were added to every file so thatthe license on those was clear. The same happened with the vendoring of`proc_macro2`, `quote` and `syn`. Please see: commit 057b8d257107 ("rust: adapt `alloc` crate to the kernel") commit 69942c0a8965 ("rust: syn: add SPDX License Identifiers") commit ddfa1b279d08 ("rust: quote: add SPDX License Identifiers") commit a9acfceb9614 ("rust: proc-macro2: add SPDX License Identifiers")Thus do the same for the `zerocopy` crate.This makes `scripts/spdxcheck.py` pass: use parentheses like commit06e9bfc1e57d ("ionic: make spdxcheck.py happy") did since we have two`OR` operators in the expression (three licenses).SPDX identifiers are not added to the `benches` files because they areincluded in rendered documentation. Nevertheless, the `README.md` to beadded by a later commit mentions the license.Finally, as requested, I filed an issue [1] with upstream about it.Cc: Joshua Liebow-Feeser <joshlf@google.com>Cc: Jack Wrenn <jswrenn@google.com>Link: https://github.com/google/zerocopy/issues/3428 [1]Link: https://patch.msgid.link/20260608141439.182634-10-ojeda@kernel.orgSigned-off-by: Miguel Ojeda <ojeda@kernel.org> List of files: /linux/rust/zerocopy/src/ref.rs Mon, 08 Jun 2026 16:14:28 +0200 Miguel Ojeda <ojeda@kernel.org> http://kernelsources.org:8080/source/history/linux/rust/zerocopy/src/ref.rs#c37398010a05055e78cf0c75defb90df06c4e999 rust: zerocopy: import crateThis is a subset of the Rust `zerocopy` crate, version v0.8.50 (released2026-05-31), licensed under "BSD-2-Clause OR Apache-2.0 OR MIT", from: https://github.com/google/zerocopy/tree/v0.8.50The files are copied as-is, with no modifications whatsoever (not evenadding the SPDX identifiers).The `benches` folder is added (i.e. not just `src` like in other cases)since the files there are included in the rendered documentation,as well as the `rustdoc` CSS style file that is needed to make thosevisually more understandable.For copyright details, please see: https://github.com/google/zerocopy/blob/v0.8.50/README.md?plain=1 https://github.com/google/zerocopy/blob/v0.8.50/LICENSE-BSD https://github.com/google/zerocopy/blob/v0.8.50/LICENSE-APACHE https://github.com/google/zerocopy/blob/v0.8.50/LICENSE-MITThe next two patches modify these files as needed for use within thekernel. This patch split allows reviewers to double-check the importand to clearly see the differences introduced.The following script may be used to verify the contents: for path in $(cd rust/zerocopy/ && find . -type f); do curl --silent --show-error --location \ https://github.com/google/zerocopy/raw/v0.8.50/$path \ | diff --unified rust/zerocopy/$path - && echo $path: OK doneCc: Joshua Liebow-Feeser <joshlf@google.com>Cc: Jack Wrenn <jswrenn@google.com>Link: https://patch.msgid.link/20260608141439.182634-9-ojeda@kernel.orgSigned-off-by: Miguel Ojeda <ojeda@kernel.org> List of files: /linux/rust/zerocopy/src/ref.rs Mon, 08 Jun 2026 16:14:27 +0200 Miguel Ojeda <ojeda@kernel.org>