From: FUJITA Tomonori Date: Tue, 23 Dec 2025 11:35:38 +0000 (+0900) Subject: objtool/rust: add one more `noreturn` Rust function X-Git-Tag: v6.19-rc8~13^2~21 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c18f35e4904920db4c51620ba634e4d175b24741;p=thirdparty%2Fkernel%2Flinux.git objtool/rust: add one more `noreturn` Rust function Fix the following warning: rust/kernel.o: warning: objtool: _RNvXNtNtCs1ewLyjEZ7Le_6kernel3str9parse_intaNtNtB2_7private12FromStrRadix14from_str_radix() falls through to next function _RNvXNtNtCs1ewLyjEZ7Le_6kernel3str9parse_intaNtNtB2_7private12FromStrRadix16from_u64_negated() The commit 51d9ee90ea90 ("rust: str: add radix prefixed integer parsing functions") introduces u64::from_str_radix(), whose implementation contains a panic path for out-of-range radix values. The panic helper is core::num::from_ascii_radix_panic(). Note that radix is derived from strip_radix() here and is always within the valid range, so kernel never panics. Fixes: 51d9ee90ea90 ("rust: str: add radix prefixed integer parsing functions") Signed-off-by: FUJITA Tomonori Reviewed-by: Alice Ryhl Tested-by: Alice Ryhl Link: https://patch.msgid.link/20251223113538.1016078-1-fujita.tomonori@gmail.com [ Reworded typo. - Miguel ] Signed-off-by: Miguel Ojeda --- diff --git a/tools/objtool/check.c b/tools/objtool/check.c index 3f7999317f4d..719ec727efd4 100644 --- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -197,7 +197,8 @@ static bool is_rust_noreturn(const struct symbol *func) * as well as changes to the source code itself between versions (since * these come from the Rust standard library). */ - return str_ends_with(func->name, "_4core5sliceSp15copy_from_slice17len_mismatch_fail") || + return str_ends_with(func->name, "_4core3num22from_ascii_radix_panic") || + str_ends_with(func->name, "_4core5sliceSp15copy_from_slice17len_mismatch_fail") || str_ends_with(func->name, "_4core6option13expect_failed") || str_ends_with(func->name, "_4core6option13unwrap_failed") || str_ends_with(func->name, "_4core6result13unwrap_failed") ||