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[ Upstream commitaacf93e87f] Another oddity in these config entries is their default value can fall back to 'n', which is a value for bool or tristate symbols. The '|| echo n' is an incorrect workaround to avoid the syntax error. This is not a big deal, as the entry is hidden by 'depends on RUST' in situations where '$(RUSTC) --version' or '$(BINDGEN) --version' fails. Anyway, it looks odd. The default of a string type symbol should be a double-quoted string literal. Turn it into an empty string when the version command fails. Fixes:2f7ab1267d("Kbuild: add Rust support") Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Link: https://lore.kernel.org/r/20240727140302.1806011-2-masahiroy@kernel.org [ Rebased on top of v6.11-rc1. - Miguel ] Signed-off-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>