Re: [PATCH] objtool/rust: add one more `noreturn` Rust function

On Sun, Jan 12, 2025 at 3:40 PM Miguel Ojeda ojeda@kernel.org wrote:

Starting with Rust 1.85.0 (currently in beta, to be released 2025-02-20), under some kernel configurations with `CONFIG_RUST_DEBUG_ASSERTIONS=y`, one may trigger a new `objtool` warning:

rust/kernel.o: warning: objtool: _R...securityNtB2_11SecurityCtx8as_bytes()
falls through to next function _R...core3ops4drop4Drop4drop()

due to a call to the `noreturn` symbol:

core::panicking::assert_failed::<usize, usize>

Thus add it to the list so that `objtool` knows it is actually `noreturn`. Do so matching with `strstr` since it is a generic.

See commit 56d680dd23c3 ("objtool/rust: list `noreturn` Rust functions") for more details.

Cc: stable@vger.kernel.org # Needed in 6.12.y only (Rust is pinned in older LTSs). Signed-off-by: Miguel Ojeda ojeda@kernel.org

Applied to `rust-fixes` -- thanks everyone!

[ Updated Cc: stable@ to include 6.13.y. - Miguel ]

Cheers, Miguel