Re: [PATCH v2] kbuild: Reject unexpected values for LLVM=

[Nicolas Schier]

On Wed, Jan 21, 2026 at 02:42:39PM +0100, Thomas Weißschuh wrote:
> The LLVM argument is documented to accept one of three forms:
> * a literal '1' to use the default 'clang',
> * a toolchain prefix path, ending in a trailing '/',
> * a version suffix.
> 
> All other values are silently treated as '1'. If for example
> the user accidentally forgets the trailing '/' of a toolchain prefix,
> kbuild will unexpectedly and silently fall back to the system toolchain.
> 
> Instead report an error if the user specified an invalid value for LLVM.
> 
> Signed-off-by: Thomas Weißschuh <linux@xxxxxxxxxxxxxx>
> ---
> Changes in v2:
> - Add pointer to the documentation.
> - Link to v1: https://patch.msgid.link/20260112-kbuild-llvm-arg-v1-1-8e9bbdae996f@xxxxxxxxxxxxxx
> ---
>  Makefile | 2 ++
>  1 file changed, 2 insertions(+)

Reviewed-by: Nicolas Schier <nsc@xxxxxxxxxx>
Tested-by: Nicolas Schier <nsc@xxxxxxxxxx>

-- 
Nicolas