Changes in Makefile

e92b2872d0b198a77c0a438c5cdb1c5510762c1b - Merge tag 'rust-fixes-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux

Sat, 09 May 2026 20:24:02 +0200

Merge tag 'rust-fixes-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linuxPull Rust fixes from Miguel Ojeda: "Toolchain and infrastructure: - Add 'bindgen' target to make UML 32-bit builds work with GCC - Disable two Clippy warnings ('collapsible_{if,match}') 'pin-init' crate: - Fix unsoundness issue that created &'static references"* tag 'rust-fixes-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux: rust: allow `clippy::collapsible_if` globally rust: allow `clippy::collapsible_match` globally rust: pin-init: fix incorrect accessor reference lifetime rust: pin-init: internal: move alignment check to `make_field_check` rust: arch: um: Fix building 32-bit UML with GCC List of files: /linux/rust/Makefile

ba6b328588f7cb7cf4aca33bae565c2914d74786 - rust: arch: um: Fix building 32-bit UML with GCC

Sat, 25 Apr 2026 05:41:23 +0200

rust: arch: um: Fix building 32-bit UML with GCC32-bit UML builds can be configured either by setting CONFIG_64BIT=n orwith SUBARCH=i386. Both work with Rust-for-Linux when clang is thecompiler, but when SUBARCH=i386, we don't set a bindgen target correctly ifgcc is the compiler.Add the appropriate bindgen target configuration for i386, as is done inMakefile.clang.[ For reference, the errors look like: BINDGEN rust/bindings/bindings_generated.rs error: unsupported option '-mno-sse' for target '' ... error: unknown target triple 'unknown' panicked at .../bindgen-0.72.1/ir/context.rs:562:15: libclang error; possible causes include: ... - Miguel ]Fixes: ab0f4cedc355 ("arch: um: rust: Add i386 support for Rust")Signed-off-by: David Gow Link: https://patch.msgid.link/20260425034125.53866-1-david@davidgow.net[ Added space in title. - Miguel ]Signed-off-by: Miguel Ojeda List of files: /linux/rust/Makefile

0fc8f6200d2313278fbf4539bbab74677c685531 - Merge drm/drm-fixes into drm-misc-fixes

Mon, 27 Apr 2026 10:26:49 +0200

Merge drm/drm-fixes into drm-misc-fixesGetting fixes and updates from v7.1-rc1.Signed-off-by: Thomas Zimmermann List of files: /linux/rust/Makefile

d13e855ee923c2ae78307bf6c354305f1406b9e2 - Merge drm/drm-fixes into drm-misc-fixes

Thu, 23 Apr 2026 14:43:06 +0200

Merge drm/drm-fixes into drm-misc-fixesTomi needs 7.0 to apply a patch from drm-misc-fixes.Signed-off-by: Maxime Ripard List of files: /linux/rust/Makefile

9e4e86a604dfd06402933467578c4b79f5412b2c - Merge tag 'v7.0-rc4' into togreg

Sun, 22 Mar 2026 13:20:42 +0100

Merge tag 'v7.0-rc4' into togregLinux 7.0-rc4Required for the ds4422 series which is build upon;5187e03b817c ("iio: dac: ds4424: reject -128 RAW value") List of files: /linux/rust/Makefile

3812943e01fdeabd80118b01c1484f6bd4d324d9 - Merge 7.0-rc4 into char-misc-next

Mon, 16 Mar 2026 11:41:58 +0100

Merge 7.0-rc4 into char-misc-nextWe need the char/misc/iio fixes in this branch as well to build on topof.Signed-off-by: Greg Kroah-Hartman List of files: /linux/rust/Makefile

f4b369c6fe0ceaba2da2daff8c9eb415f85926dd - Merge branch 'next' into for-linus

Mon, 20 Apr 2026 03:28:57 +0200

Merge branch 'next' into for-linusPrepare input updates for 7.1 merge window. List of files: /linux/rust/Makefile

117f8e71d61dab08b9be84b7dd0dd65916ed13c0 - Merge tag 'v7.0-rc5' into next

Tue, 24 Mar 2026 21:49:39 +0100

Merge tag 'v7.0-rc5' into nextSync up with mainline to pull in a fix for smb compilation error. List of files: /linux/rust/Makefile

0421ccdfad0d92713a812a5aeb7d07b0ea7213c8 - Merge tag 'v7.0-rc3' into next

Thu, 12 Mar 2026 18:44:42 +0100

Merge tag 'v7.0-rc3' into nextSync up with the mainline to brig up the latest changes, specificallychanges to ALPS driver. List of files: /linux/rust/Makefile

3e9e952bb3139ad1e08f3e1960239c2988ab90c9 - Merge branch 'for-7.1-printf-kunit-build' into for-linus

Mon, 20 Apr 2026 13:41:28 +0200

Merge branch 'for-7.1-printf-kunit-build' into for-linus List of files: /linux/rust/Makefile

d4eb7b2da66c848709e31585b9c371fa234abc39 - Merge branch 'for-7.1/core-v2' into for-linus

Thu, 16 Apr 2026 21:01:18 +0200

Merge branch 'for-7.1/core-v2' into for-linus- fixed handling of 0-sized reports (Dmitry Torokhov)- convert core code to __free() (Dmitry Torokhov)- support for multiple batteries per HID device (Lucas Zampieri) List of files: /linux/rust/Makefile

26ff969926a08eee069767ddbbbc301adbcd9676 - Merge tag 'rust-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux

Mon, 13 Apr 2026 18:54:20 +0200

Merge tag 'rust-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linuxPull Rust updates from Miguel Ojeda: "Toolchain and infrastructure: - Bump the minimum Rust version to 1.85.0 (and 'bindgen' to 0.71.1). As proposed in LPC 2025 and the Maintainers Summit [1], we are going to follow Debian Stable's Rust versions as our minimum versions. Debian Trixie was released on 2025-08-09 with a Rust 1.85.0 and 'bindgen' 0.71.1 toolchain, which is a fair amount of time for e.g. kernel developers to upgrade. Other major distributions support a Rust version that is high enough as well, including: + Arch Linux. + Fedora Linux. + Gentoo Linux. + Nix. + openSUSE Slowroll and openSUSE Tumbleweed. + Ubuntu 25.10 and 26.04 LTS. In addition, 24.04 LTS using their versioned packages. The merged patch series comes with the associated cleanups and simplifications treewide that can be performed thanks to both bumps, as well as documentation updates. In addition, start using 'bindgen''s '--with-attribute-custom-enum' feature to set the 'cfi_encoding' attribute for the 'lru_status' enum used in Binder. Link: https://lwn.net/Articles/1050174/ [1] - Add experimental Kconfig option ('CONFIG_RUST_INLINE_HELPERS') that inlines C helpers into Rust. Essentially, it performs a step similar to LTO, but just for the helpers, i.e. very local and fast. It relies on 'llvm-link' and its '--internalize' flag, and requires a compatible LLVM between Clang and 'rustc' (i.e. same major version, 'CONFIG_RUSTC_CLANG_LLVM_COMPATIBLE'). It is only enabled for two architectures for now. The result is a measurable speedup in different workloads that different users have tested. For instance, for the null block driver, it amounts to a 2%. - Support global per-version flags. While we already have per-version flags in many places, we didn't have a place to set global ones that depend on the compiler version, i.e. in 'rust_common_flags', which sometimes is needed to e.g. tweak the lints set per version. Use that to allow the 'clippy::precedence' lint for Rust < 1.86.0, since it had a change in behavior. - Support overriding the crate name and apply it to Rust Binder, which wanted the module to be called 'rust_binder'. - Add the remaining '__rust_helper' annotations (started in the previous cycle). 'kernel' crate: - Introduce the 'const_assert!' macro: a more powerful version of 'static_assert!' that can refer to generics inside functions or implementation bodies, e.g.: fn f() { const_assert!(N > 1); } fn g() { const_assert!(size_of::() > 0, "T cannot be ZST"); } In addition, reorganize our set of build-time assertion macros ('{build,const,static_assert}!') to live in the 'build_assert' module. Finally, improve the docs as well to clarify how these are different from one another and how to pick the right one to use, and their equivalence (if any) to the existing C ones for extra clarity. - 'sizes' module: add 'SizeConstants' trait. This gives us typed 'SZ_*' constants (avoiding casts) for use in device address spaces where the address width depends on the hardware (e.g. 32-bit MMIO windows, 64-bit GPU framebuffers, etc.), e.g.: let gpu_heap = 14 * u64::SZ_1M; let mmio_window = u32::SZ_16M; - 'clk' module: implement 'Send' and 'Sync' for 'Clk' and thus simplify the users in Tyr and PWM. - 'ptr' module: add 'const_align_up'. - 'str' module: improve the documentation of the 'c_str!' macro to explain that one should only use it for non-literal cases (for the other case we instead use C string literals, e.g. 'c"abc"'). - Disallow the use of 'CStr::{as_ptr,from_ptr}' and clean one such use in the 'task' module. - 'sync' module: finish the move of 'ARef' and 'AlwaysRefCounted' outside of the 'types' module, i.e. update the last remaining instances and finally remove the re-exports. - 'error' module: clarify that 'from_err_ptr' can return 'Ok(NULL)', including runtime-tested examples. The intention is to hopefully prevent UB that assumes the result of the function is not 'NULL' if successful. This originated from a case of UB I noticed in 'regulator' that created a 'NonNull' on it. Timekeeping: - Expand the example section in the 'HrTimer' documentation. - Mark the 'ClockSource' trait as unsafe to ensure valid values for 'ktime_get()'. - Add 'Delta::from_nanos()'. 'pin-init' crate: - Replace the 'Zeroable' impls for 'Option' with impls of 'ZeroableOption' for 'NonZero*'. - Improve feature gate handling for unstable features. - Declutter the documentation of implementations of 'Zeroable' for tuples. - Replace uses of 'addr_of[_mut]!' with '&raw [mut]'. rust-analyzer: - Add type annotations to 'generate_rust_analyzer.py'. - Add support for scripts written in Rust ('generate_rust_target.rs', 'rustdoc_test_builder.rs', 'rustdoc_test_gen.rs'). - Refactor 'generate_rust_analyzer.py' to explicitly identify host and target crates, improve readability, and reduce duplication. And some other fixes, cleanups and improvements"* tag 'rust-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux: (79 commits) rust: sizes: add SizeConstants trait for device address space constants rust: kernel: update `file_with_nul` comment rust: kbuild: allow `clippy::precedence` for Rust < 1.86.0 rust: kbuild: support global per-version flags rust: declare cfi_encoding for lru_status docs: rust: general-information: use real example docs: rust: general-information: simplify Kconfig example docs: rust: quick-start: remove GDB/Binutils mention docs: rust: quick-start: remove Nix "unstable channel" note docs: rust: quick-start: remove Gentoo "testing" note docs: rust: quick-start: add Ubuntu 26.04 LTS and remove subsection title docs: rust: quick-start: update minimum Ubuntu version docs: rust: quick-start: update Ubuntu versioned packages docs: rust: quick-start: openSUSE provides `rust-src` package nowadays rust: kbuild: remove "dummy parameter" workaround for `bindgen` < 0.71.1 rust: kbuild: update `bindgen --rust-target` version and replace comment rust: rust_is_available: remove warning for `bindgen` < 0.69.5 && libclang >= 19.1 rust: rust_is_available: remove warning for `bindgen` 0.66.[01] rust: bump `bindgen` minimum supported version to 0.71.1 (Debian Trixie) rust: block: update `const_refs_to_static` MSRV TODO comment ... List of files: /linux/rust/Makefile

8a23051ed8584215b22368e9501f771ef98f0c1d - Merge tag 'pin-init-v7.1' of https://github.com/Rust-for-Linux/linux into rust-next

Wed, 08 Apr 2026 10:44:46 +0200

Merge tag 'pin-init-v7.1' of https://github.com/Rust-for-Linux/linux into rust-nextPull pin-init updates from Benno Lossin: - Replace the 'Zeroable' impls for 'Option' with impls of 'ZeroableOption' for 'NonZero*'. - Improve feature gate handling for unstable features. - Declutter the documentation of implementations of 'Zeroable' for tuples. - Replace uses of 'addr_of[_mut]!' with '&raw [mut]'.* tag 'pin-init-v7.1' of https://github.com/Rust-for-Linux/linux: rust: pin-init: replace `addr_of_mut!` with `&raw mut` rust: pin-init: implement ZeroableOption for NonZero* integer types rust: pin-init: doc: de-clutter documentation with fake-variadics rust: pin-init: properly document let binding workaround rust: pin-init: build: simplify use of nightly features List of files: /linux/rust/Makefile

b06b348e855383ed80e041299f3925cdd7dff3da - Merge tag 'rust-timekeeping-for-v7.1' of https://github.com/Rust-for-Linux/linux into rust-next

Wed, 08 Apr 2026 09:46:01 +0200

Merge tag 'rust-timekeeping-for-v7.1' of https://github.com/Rust-for-Linux/linux into rust-nextPull timekeeping updates from Andreas Hindborg: - Expand the example section in the 'HrTimer' documentation. - Mark the 'ClockSource' trait as unsafe to ensure valid values for 'ktime_get()'. - Add 'Delta::from_nanos()'.This is a back merge since the pull request has a newer base -- we willavoid that in the future.And, given it is a back merge, it happens to resolve the "subtle" conflictaround '--remap-path-{prefix,scope}' that I discussed in linux-next [1],plus a few other common conflicts. The result matches what we did fornext-20260407.The actual diffstat (i.e. using a temporary merge of upstream first) is: rust/kernel/time.rs | 32 ++++- rust/kernel/time/hrtimer.rs | 336 ++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 362 insertions(+), 6 deletions(-)Link: https://lore.kernel.org/linux-next/CANiq72kdxB=W3_CV1U44oOK3SssztPo2wLDZt6LP94TEO+Kj4g@mail.gmail.com/ [1]* tag 'rust-timekeeping-for-v7.1' of https://github.com/Rust-for-Linux/linux: hrtimer: add usage examples to documentation rust: time: make ClockSource unsafe trait rust/time: Add Delta::from_nanos() List of files: /linux/rust/Makefile

7ab26eb5a2b4009344580117ef05981867e0c7d7 - Merge patch series "rust: bump minimum Rust and `bindgen` versions"

Tue, 07 Apr 2026 10:40:11 +0200

Merge patch series "rust: bump minimum Rust and `bindgen` versions"As proposed in the past in e.g. LPC 2025 and the Maintainers Summit [1],we are going to follow Debian Stable's Rust versions as our minimumsupported version.Debian Trixie was released with a Rust 1.85.0 toolchain [2], which itstill uses to this day [3] (i.e. no update to Rust 1.85.1).Debian Trixie was released with `bindgen` 0.71.1, which it also stilluses to this day [4].Debian Trixie's release happened on 2025-08-09 [5], which means that afair amount of time has passed since its release for kernel developersto upgrade.Thus bump the minimum to the new versions, i.e. - Rust: 1.78.0 -> 1.85.0 - bindgen: 0.65.1 -> 0.71.1There are a few main parts to the series, in this order: - A few cleanups that can be performed before the bumps. - The Rust bump (and its cleanups). - The `bindgen` bump (and its cleanups). - Documentation updates. - The `cfi_encoding` patch, added here, which needs the bump. - The per-version flags support and a Clippy cleanup on top.Link: https://lwn.net/Articles/1050174/ [1]Link: https://www.debian.org/releases/trixie/release-notes/whats-new.en.html#desktops-and-well-known-packages [2]Link: https://packages.debian.org/trixie/rustc [3]Link: https://packages.debian.org/trixie/bindgen [4]Link: https://www.debian.org/releases/trixie/ [5]Link: https://patch.msgid.link/20260405235309.418950-1-ojeda@kernel.orgSigned-off-by: Miguel Ojeda List of files: /linux/rust/Makefile

276ed30c558ef890ebcf8b28d9979ac16be30d4c - rust: kbuild: update `bindgen --rust-target` version and replace comment

Mon, 06 Apr 2026 01:52:56 +0200

rust: kbuild: update `bindgen --rust-target` version and replace commentAs the comment in the `Makefile` explains, previously, we needed tolimit ourselves to the list of Rust versions known by `bindgen` for its`--rust-target` option [1].In other words, we needed to consult the versions known by the minimumversion of `bindgen` that we supported.Now that we bumped the minimum version of `bindgen`, that limitationdoes not apply anymore since `bindgen` 0.71.0 [2].Thus replace the comment and simply write our minimum supported Rustversion there, which is much simpler.See commit 7a5f93ea5862 ("rust: kbuild: set `bindgen`'s Rust targetversion") for more details.Link: https://rust-lang.zulipchat.com/#narrow/channel/425075-rust-for-linux/topic/rust.20version.20on.20generated.20bindings/near/484087179 [1]Link: https://github.com/rust-lang/rust-bindgen/pull/2993 [2]Reviewed-by: Tamir Duberstein Reviewed-by: Gary Guo Link: https://patch.msgid.link/20260405235309.418950-21-ojeda@kernel.orgSigned-off-by: Miguel Ojeda List of files: /linux/rust/Makefile

d1aa40daa777c74439eebf8aed17392e23685768 - rust: kbuild: remove `feature(...)`s that are now stable

Mon, 06 Apr 2026 01:52:48 +0200

rust: kbuild: remove `feature(...)`s that are now stableNow that the Rust minimum version is 1.85.0, there is no need to enablecertain features that are stable.Thus clean them up.Reviewed-by: Tamir Duberstein Reviewed-by: Gary Guo Link: https://patch.msgid.link/20260405235309.418950-13-ojeda@kernel.orgSigned-off-by: Miguel Ojeda List of files: /linux/rust/Makefile

0f6e1e0705f054ae68ecfa3f7ee47b9c35677e40 - rust: kbuild: remove skipping of `-Wrustdoc::unescaped_backticks`

Mon, 06 Apr 2026 01:52:47 +0200

rust: kbuild: remove skipping of `-Wrustdoc::unescaped_backticks`Back in Rust 1.82.0, I cleaned the `rustdoc::unescaped_backticks` lint inupstream Rust and added tests so that hopefully it would not regress [1].Thus we can remove it from our side given the Rust minimum version bump.Link: https://github.com/rust-lang/rust/pull/128307 [1]Reviewed-by: Tamir Duberstein Reviewed-by: Gary Guo Link: https://patch.msgid.link/20260405235309.418950-12-ojeda@kernel.orgSigned-off-by: Miguel Ojeda List of files: /linux/rust/Makefile

c8cbe2fc22e4eb9f81a3fb2eefcaf25e19dcd171 - rust: kbuild: remove `--remap-path-prefix` workarounds

Mon, 06 Apr 2026 01:52:37 +0200

rust: kbuild: remove `--remap-path-prefix` workaroundsCommit 8cf5b3f83614 ("Revert "kbuild, rust: use -fremap-path-prefixto make paths relative"") removed `--remap-path-prefix` from the buildsystem, so the workarounds are not needed anymore.Thus remove them.Note that the flag has landed again in parallel in this cycle incommit dda135077ecc ("rust: build: remap path to avoid absolute path"),together with `--remap-path-scope=macro` [1]. However, they are gated on`rustc-option-yn, --remap-path-scope=macro`, which means they are bothonly passed starting with Rust 1.95.0 [2]: `--remap-path-scope` is only stable in Rust 1.95, so use `rustc-option` to detect its presence. This feature has been available as `-Zremap-path-scope` for all versions that we support; however due to bugs in the Rust compiler, it does not work reliably until 1.94. I opted to not enable it for 1.94 as it's just a single version that we missed.In turn, that means the workarounds removed here should not be neededagain (even with the flag added again above), since: - `rustdoc` now recognizes the `--remap-path-prefix` flag since Rust 1.81.0 [3] (even if it is still an unstable feature [4]). - The Internal Compiler Error [5] that the comment mentions was fixed in Rust 1.87.0 [6]. We tested that was the case in a previous version of this series by making the workaround conditional [7][8]....which are both older versions than Rust 1.95.0.We will still need to skip `--remap-path-scope` for `rustdoc` though,since `rustdoc` does not support that one yet [4].Link: https://github.com/rust-lang/rust/issues/111540 [1]Link: https://github.com/rust-lang/rust/pull/147611 [2]Link: https://github.com/rust-lang/rust/pull/107099 [3]Link: https://doc.rust-lang.org/nightly/rustdoc/unstable-features.html#--remap-path-prefix-remap-source-code-paths-in-output [4]Link: https://github.com/rust-lang/rust/issues/138520 [5]Link: https://github.com/rust-lang/rust/pull/138556 [6]Link: https://lore.kernel.org/rust-for-linux/20260401114540.30108-9-ojeda@kernel.org/ [7]Link: https://lore.kernel.org/rust-for-linux/20260401114540.30108-10-ojeda@kernel.org/ [8]Link: https://patch.msgid.link/20260405235309.418950-2-ojeda@kernel.orgAcked-by: Gary Guo Reviewed-by: Tamir Duberstein Signed-off-by: Miguel Ojeda List of files: /linux/rust/Makefile

bad28e01f206c533a8ff7fec5efe8ab9607a8364 - Merge tag 'v7.0-rc6' into irq/core

Sat, 04 Apr 2026 20:59:34 +0200

Merge tag 'v7.0-rc6' into irq/coreto be able to merge the hyper-v patch related to randomness. List of files: /linux/rust/Makefile