6.1-stable review patch. If anyone has any objections, please let me know.
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From: Masahiro Yamada masahiroy@kernel.org
[ Upstream commit 5ce86c6c861352c9346ebb5c96ed70cb67414aa3 ]
While this is a somewhat unusual case, I encountered odd error messages when I ran Kconfig in a foreign architecture chroot.
$ make allmodconfig sh: 1: rustc: not found sh: 1: bindgen: not found # # configuration written to .config #
The successful execution of 'command -v rustc' does not necessarily mean that 'rustc --version' will succeed.
$ sh -c 'command -v rustc' /home/masahiro/.cargo/bin/rustc $ sh -c 'rustc --version' sh: 1: rustc: not found
Here, 'rustc' is built for x86, and I ran it in an arm64 system.
The current code:
command -v $(RUSTC) >/dev/null 2>&1 && $(RUSTC) --version || echo n
can be turned into:
command -v $(RUSTC) >/dev/null 2>&1 && $(RUSTC) --version 2>/dev/null || echo n
However, I did not understand the necessity of 'command -v $(RUSTC)'.
I simplified it to:
$(RUSTC) --version 2>/dev/null || echo n
Fixes: 2f7ab1267dc9 ("Kbuild: add Rust support") Signed-off-by: Masahiro Yamada masahiroy@kernel.org Link: https://lore.kernel.org/r/20240727140302.1806011-1-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 --- init/Kconfig | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/init/Kconfig b/init/Kconfig index 19de862768239..85e8bf76aeccb 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1942,7 +1942,7 @@ config RUST config RUSTC_VERSION_TEXT string depends on RUST - default $(shell,command -v $(RUSTC) >/dev/null 2>&1 && $(RUSTC) --version || echo n) + default $(shell,$(RUSTC) --version 2>/dev/null || echo n)
config BINDGEN_VERSION_TEXT string @@ -1950,7 +1950,7 @@ config BINDGEN_VERSION_TEXT # The dummy parameter `workaround-for-0.69.0` is required to support 0.69.0 # (https://github.com/rust-lang/rust-bindgen/pull/2678). It can be removed when # the minimum version is upgraded past that (0.69.1 already fixed the issue). - default $(shell,command -v $(BINDGEN) >/dev/null 2>&1 && $(BINDGEN) --version workaround-for-0.69.0 || echo n) + default $(shell,$(BINDGEN) --version workaround-for-0.69.0 2>/dev/null || echo n)
# # Place an empty function call at each tracepoint site. Can be