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Howlett" , Uladzislau Rezki , linux-block@vger.kernel.org, moderated for non-subscribers , Alexandre Ghiti , linux-riscv@lists.infradead.org, nouveau@lists.freedesktop.org, dri-devel@lists.freedesktop.org, Rae Moar , linux-kselftest@vger.kernel.org, kunit-dev@googlegroups.com, Nick Desaulniers , Bill Wendling , Justin Stitt , llvm@lists.linux.dev, linux-kernel@vger.kernel.org, Shuah Khan , linux-doc@vger.kernel.org References: <20260405235309.418950-1-ojeda@kernel.org> <20260405235309.418950-33-ojeda@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260405235309.418950-33-ojeda@kernel.org> Message-ID-Hash: DBYFM6VX4U7F6IQJBHBYEBFCX3QQ4MDE X-Message-ID-Hash: DBYFM6VX4U7F6IQJBHBYEBFCX3QQ4MDE X-MailFrom: nsc@kernel.org X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: Nathan Chancellor , Danilo Krummrich , Andreas Hindborg , Catalin Marinas , Will Deacon , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Courbot , Simona Vetter , Brendan Higgins , David Gow , Greg Kroah-Hartman , Arve =?iso-8859-1?B?SGr4bm5lduVn?= , Todd Kjos , Christian Brauner , Carlos Llamas , Alice Ryhl , Jonathan Corbet , Boqun Feng , Gary Guo , =?iso-8859-1?Q?Bj=F6rn?= Roy Baron , Benno Lossin , Trevor Gross , rust-for-linux@vger.kernel.org, linux-kbuild@vger.kernel.org, Lorenzo Stoakes , Vlastimil Babka , "Liam R . Howlett" , Uladzislau Rezki , linux-block@vger.kernel.org, moderated for non-subscribers , Alexandre Ghiti , linux-riscv@lists.infradead.org, nouveau@lists.freedesktop.org, dri-devel@lists.freedesktop.org, Rae Moar , linux-kselftest@vger.kernel.org, kunit-dev@googlegroups.com, Nick Desaulniers , Bill Wendling , Justin Stitt , llvm@lists.linux.dev, linux-kernel@vger.kernel.org, Shuah Khan , linux-doc@vger.kernel.org X-Mailman-Version: 3.3.8 Precedence: list List-Id: Nouveau development list Archived-At: Archived-At: List-Archive: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: On Mon, Apr 06, 2026 at 01:53:08AM +0200, Miguel Ojeda wrote: > Sometimes it is useful to gate global Rust flags per compiler version. > For instance, we may want to disable a lint that has false positives in > a single version [1]. > > We already had helpers like `rustc-min-version` for that, which we use > elsewhere, but we cannot currently use them for `rust_common_flags`, > which contains the global flags for all Rust code (kernel and host), > because `rustc-min-version` depends on `CONFIG_RUSTC_VERSION`, which > does not exist when `rust_common_flags` is defined. > > Thus, to support that, introduce `rust_common_flags_per_version`, > defined after the `include/config/auto.conf` inclusion (where > `CONFIG_RUSTC_VERSION` becomes available), and append it to > `rust_common_flags`, `KBUILD_HOSTRUSTFLAGS` and `KBUILD_RUSTFLAGS`. > > In addition, move the expansion of `HOSTRUSTFLAGS` to the same place, > so that users can also override per-version flags [2]. > > Link: https://lore.kernel.org/rust-for-linux/CANiq72mWdFU11GcCZRchzhy0Gi1QZShvZtyRkHV2O+WA2uTdVQ@mail.gmail.com/ [1] > Link: https://lore.kernel.org/rust-for-linux/CANiq72mTaA2tjhkLKf0-2hrrrt9rxWPgy6SfNSbponbGOegQvA@mail.gmail.com/ [2] > Link: https://patch.msgid.link/20260307170929.153892-1-ojeda@kernel.org > Signed-off-by: Miguel Ojeda > --- > Makefile | 10 +++++++++- > 1 file changed, 9 insertions(+), 1 deletion(-) > Acked-by: Nicolas Schier -- Nicolas