[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-ID: <20240422091215.526688-1-ojeda@kernel.org>
Date: Mon, 22 Apr 2024 11:12:15 +0200
From: Miguel Ojeda <ojeda@...nel.org>
To: Masahiro Yamada <masahiroy@...nel.org>,
Miguel Ojeda <ojeda@...nel.org>,
Wedson Almeida Filho <wedsonaf@...il.com>,
Alex Gaynor <alex.gaynor@...il.com>
Cc: Nathan Chancellor <nathan@...nel.org>,
Nick Desaulniers <ndesaulniers@...gle.com>,
Nicolas Schier <nicolas@...sle.eu>,
Boqun Feng <boqun.feng@...il.com>,
Gary Guo <gary@...yguo.net>,
Björn Roy Baron <bjorn3_gh@...tonmail.com>,
Benno Lossin <benno.lossin@...ton.me>,
Andreas Hindborg <a.hindborg@...sung.com>,
Alice Ryhl <aliceryhl@...gle.com>,
David Gow <davidgow@...gle.com>,
Brendan Higgins <brendan.higgins@...ux.dev>,
linux-kbuild@...r.kernel.org,
rust-for-linux@...r.kernel.org,
kunit-dev@...glegroups.com,
linux-kselftest@...r.kernel.org,
linux-kernel@...r.kernel.org,
patches@...ts.linux.dev,
stable@...r.kernel.org
Subject: [PATCH] kbuild: rust: remove unneeded `@...tc_cfg` to avoid ICE
When KUnit tests are enabled, under very big kernel configurations
(e.g. `allyesconfig`), we can trigger a `rustdoc` ICE [1]:
RUSTDOC TK rust/kernel/lib.rs
error: the compiler unexpectedly panicked. this is a bug.
The reason is that this build step has a duplicated `@...tc_cfg` argument,
which contains the kernel configuration, and thus a lot of arguments. The
factor 2 happens to be enough to reach the ICE.
Thus remove the unneeded `@...tc_cfg`. By doing so, we clean up the
command and workaround the ICE.
The ICE has been fixed in the upcoming Rust 1.79 [2].
Cc: stable@...r.kernel.org
Fixes: a66d733da801 ("rust: support running Rust documentation tests as KUnit ones")
Link: https://github.com/rust-lang/rust/issues/122722 [1]
Link: https://github.com/rust-lang/rust/pull/122840 [2]
Signed-off-by: Miguel Ojeda <ojeda@...nel.org>
---
rust/Makefile | 1 -
1 file changed, 1 deletion(-)
diff --git a/rust/Makefile b/rust/Makefile
index 846e6ab9d5a9..86a125c4243c 100644
--- a/rust/Makefile
+++ b/rust/Makefile
@@ -175,7 +175,6 @@ quiet_cmd_rustdoc_test_kernel = RUSTDOC TK $<
mkdir -p $(objtree)/$(obj)/test/doctests/kernel; \
OBJTREE=$(abspath $(objtree)) \
$(RUSTDOC) --test $(rust_flags) \
- @$(objtree)/include/generated/rustc_cfg \
-L$(objtree)/$(obj) --extern alloc --extern kernel \
--extern build_error --extern macros \
--extern bindings --extern uapi \
base-commit: 4cece764965020c22cff7665b18a012006359095
--
2.44.0
Powered by blists - more mailing lists