linux.git/rust/zerocopy/src/pointer/inner.rs, branch master

rust: zerocopy: update to v0.8.52

2026-07-11T11:45:46+00:00

Update our vendored copy of `zerocopy` (and `zerocopy-derive`) to v0.8.52. Most SPDX identifiers have been added upstream at our request [1] (without parentheses -- supporting them is an issue on the kernel side, but it does already reduce our differences). The CSS one for `rustdoc` was added too [2], but will be picked up in a later version. For `zerocopy`, enable `--cfg no_fp_fmt_parse`, which was added at our request to avoid our local workaround [3]. This means one less difference, thus indicate so in our `README.md`. For `zerocopy-derive`, enable `--cfg zerocopy_unstable_linux`. This allows us to use `#[derive(zerocopy_derive::most_traits)]`, a new feature upstream added for us [4]. We noticed a minor doc render bug [5], which will be fixed for a future version too. The following script may be used to check for the remaining differences: for path in $(cd rust/zerocopy-derive/ && find . -type f ! -name README.md); do curl --silent --show-error --location \ https://github.com/google/zerocopy/raw/v0.8.52/zerocopy/zerocopy-derive/src/$path | git diff --no-index - rust/zerocopy-derive/$path && echo $path: OK done for path in $(cd rust/zerocopy/ && find . -type f ! -name README.md); do curl --silent --show-error --location \ https://github.com/google/zerocopy/raw/v0.8.52/zerocopy/$path | git diff --no-index - rust/zerocopy/$path && echo $path: OK done Cc: Joshua Liebow-Feeser Cc: Jack Wrenn Link: https://github.com/google/zerocopy/issues/3428 [1] Link: https://github.com/google/zerocopy/issues/3457 [2] Link: https://github.com/google/zerocopy/issues/3426 [3] Link: https://github.com/google/zerocopy/pull/3416 [4] Link: https://github.com/google/zerocopy/issues/3466 [5] Acked-by: Nicolas Schier Reviewed-by: Alice Ryhl Link: https://patch.msgid.link/20260625231919.692444-1-ojeda@kernel.org Signed-off-by: Miguel Ojeda

rust: zerocopy: add SPDX License Identifiers

2026-06-09T02:13:22+00:00

Originally, when the Rust upstream `alloc` standard library crate was vendored, the SPDX License Identifiers were added to every file so that the 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 commit 06e9bfc1e57d ("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 are included in rendered documentation. Nevertheless, the `README.md` to be added by a later commit mentions the license. Finally, as requested, I filed an issue [1] with upstream about it. Cc: Joshua Liebow-Feeser Cc: Jack Wrenn Link: https://github.com/google/zerocopy/issues/3428 [1] Link: https://patch.msgid.link/20260608141439.182634-10-ojeda@kernel.org Signed-off-by: Miguel Ojeda

rust: zerocopy: import crate

2026-06-09T02:13:22+00:00

This is a subset of the Rust `zerocopy` crate, version v0.8.50 (released 2026-05-31), licensed under "BSD-2-Clause OR Apache-2.0 OR MIT", from: https://github.com/google/zerocopy/tree/v0.8.50 The files are copied as-is, with no modifications whatsoever (not even adding 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 those visually 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-MIT The next two patches modify these files as needed for use within the kernel. This patch split allows reviewers to double-check the import and 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 done Cc: Joshua Liebow-Feeser Cc: Jack Wrenn Link: https://patch.msgid.link/20260608141439.182634-9-ojeda@kernel.org Signed-off-by: Miguel Ojeda