linux-kernel - [PATCH v2 04/20] rust: kbuild: support skipping flags in `rustc_test

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Message-ID: <20251124151837.2184382-5-ojeda@kernel.org>
Date: Mon, 24 Nov 2025 16:18:16 +0100
From: Miguel Ojeda <ojeda@...nel.org>
To: Miguel Ojeda <ojeda@...nel.org>,
	Alex Gaynor <alex.gaynor@...il.com>,
	Nathan Chancellor <nathan@...nel.org>,
	Nicolas Schier <nicolas@...sle.eu>
Cc: Boqun Feng <boqun.feng@...il.com>,
	Gary Guo <gary@...yguo.net>,
	Björn Roy Baron <bjorn3_gh@...tonmail.com>,
	Benno Lossin <lossin@...nel.org>,
	Andreas Hindborg <a.hindborg@...nel.org>,
	Alice Ryhl <aliceryhl@...gle.com>,
	Trevor Gross <tmgross@...ch.edu>,
	Danilo Krummrich <dakr@...nel.org>,
	rust-for-linux@...r.kernel.org,
	linux-kbuild@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	patches@...ts.linux.dev,
	Jesung Yang <y.j3ms.n@...il.com>
Subject: [PATCH v2 04/20] rust: kbuild: support skipping flags in `rustc_test_library`

Crates like `quote` (added later) will need the ability to skip flags
in the `rustc_test_library` command.

Thus add the support for it.

Reviewed-by: Alice Ryhl <aliceryhl@...gle.com>
Reviewed-by: Gary Guo <gary@...yguo.net>
Tested-by: Gary Guo <gary@...yguo.net>
Tested-by: Jesung Yang <y.j3ms.n@...il.com>
Signed-off-by: Miguel Ojeda <ojeda@...nel.org>
---
 rust/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/rust/Makefile b/rust/Makefile
index 45ef84513b6c..6fdab341fc48 100644
--- a/rust/Makefile
+++ b/rust/Makefile
@@ -172,8 +172,8 @@ rustdoc-clean: FORCE
 quiet_cmd_rustc_test_library = $(RUSTC_OR_CLIPPY_QUIET) TL $<
       cmd_rustc_test_library = \
 	OBJTREE=$(abspath $(objtree)) \
-	$(RUSTC_OR_CLIPPY) $(rust_common_flags) \
-		@$(objtree)/include/generated/rustc_cfg $(rustc_target_flags) \
+	$(RUSTC_OR_CLIPPY) $(filter-out $(skip_flags),$(rust_common_flags) $(rustc_target_flags)) \
+		@$(objtree)/include/generated/rustc_cfg \
 		--crate-type $(if $(rustc_test_library_proc),proc-macro,rlib) \
 		--out-dir $(objtree)/$(obj)/test --cfg testlib \
 		-L$(objtree)/$(obj)/test \
-- 
2.52.0