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Rust fixes for v6.13

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Toolchain and infrastructure:
 
  - Set bindgen's Rust target version to prevent issues when pairing
    older rustc releases with newer bindgen releases, such as
    bindgen >= 0.71.0 and rustc < 1.82 due to unsafe_extern_blocks.
 
 drm/panic:
 
  - Remove spurious empty line detected by a new Clippy warning.
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Merge tag 'rust-fixes-6.13' of https://github.com/Rust-for-Linux/linux

Pull rust fixes from Miguel Ojeda:
 "Toolchain and infrastructure:

   - Set bindgen's Rust target version to prevent issues when
     pairing older rustc releases with newer bindgen releases,
     such as bindgen >= 0.71.0 and rustc < 1.82 due to
     unsafe_extern_blocks.

  drm/panic:

   - Remove spurious empty line detected by a new Clippy warning"

* tag 'rust-fixes-6.13' of https://github.com/Rust-for-Linux/linux:
  rust: kbuild: set `bindgen`'s Rust target version
  drm/panic: remove spurious empty line to clean warning
This commit is contained in:
Linus Torvalds 2024-12-14 08:51:43 -08:00
commit 7824850768
2 changed files with 14 additions and 2 deletions
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1
drivers/gpu/drm/drm_panic_qr.rs
View File

@ -929,7 +929,6 @@ fn draw_all(&mut self, data: impl Iterator<Item = u8>) {
/// * `tmp` must be valid for reading and writing for `tmp_size` bytes.
///
/// They must remain valid for the duration of the function call.
#[no_mangle]
pub unsafe extern "C" fn drm_panic_qr_generate(
url: *const i8,

15
rust/Makefile
View File

@ -280,9 +280,22 @@ endif
# architecture instead of generating `usize`.
bindgen_c_flags_final = $(bindgen_c_flags_lto) -fno-builtin -D__BINDGEN__
# Each `bindgen` release may upgrade the list of Rust target versions. By
# default, the highest stable release in their list is used. Thus we need to set
# a `--rust-target` to avoid future `bindgen` releases emitting code that
# `rustc` may not understand. On top of that, `bindgen` does not support passing
# an unknown Rust target version.
#
# Therefore, the Rust target for `bindgen` can be only as high as the minimum
# Rust version the kernel supports and only as high as the greatest stable Rust
# target supported by the minimum `bindgen` version the kernel supports (that
# is, if we do not test the actual `rustc`/`bindgen` versions running).
#
# Starting with `bindgen` 0.71.0, we will be able to set any future Rust version
# instead, i.e. we will be able to set here our minimum supported Rust version.
quiet_cmd_bindgen = BINDGEN $@
cmd_bindgen = \
$(BINDGEN) $< $(bindgen_target_flags) \
$(BINDGEN) $< $(bindgen_target_flags) --rust-target 1.68 \
--use-core --with-derive-default --ctypes-prefix ffi --no-layout-tests \
--no-debug '.*' --enable-function-attribute-detection \
-o $@ -- $(bindgen_c_flags_final) -DMODULE \