Re: [PATCH V17 4/7] rust/powerpc: Set min rustc version for powerpc

[Mukesh Kumar Chaurasiya]

On Wed, Jul 08, 2026 at 10:39:30AM +0200, Link Mauve wrote:
> Hi,
> 
> On Wed, Jul 08, 2026 at 01:54:51PM +0530, Mukesh Kumar Chaurasiya (IBM) wrote:
> > Minimum `rustc` version required for powerpc is 1.95 as some critical
> > features required for compiling rust code for kernel are not there.
> > 
> > For example Stable inline asm support which got merged in 1.95.
> 
> Didn’t we decide on 1.85.0 with the asm_experimental_arch feature
> instead?  And possibly on 64-bit 1.87.0 if it isn’t possible to disable
> altivec correctly there?
> 
1.85.0 or 1.85.1 is not feasible for ppc64le.
PPC maintainer is ok with 1.95 for PPC. It's still experimental for PPC.

Regards,
Mukesh

> > 
> > Link: https://github.com/rust-lang/rust/pull/147996
> > Signed-off-by: Mukesh Kumar Chaurasiya (IBM) <mkchauras@xxxxxxxxx>
> > ---
> >  scripts/min-tool-version.sh | 2 ++
> >  1 file changed, 2 insertions(+)
> > 
> > diff --git a/scripts/min-tool-version.sh b/scripts/min-tool-version.sh
> > index 031f2192b390..99bfdcaa3396 100755
> > --- a/scripts/min-tool-version.sh
> > +++ b/scripts/min-tool-version.sh
> > @@ -33,6 +33,8 @@ llvm)
> >  rustc)
> >  	if [ "$SRCARCH" = "s390" ]; then
> >  		echo 1.96.0
> > +	elif [ "$ARCH" = powerpc ]; then
> > +		echo 1.95.0
> >  	else
> >  		echo 1.85.0
> >  	fi
> > -- 
> > 2.55.0
> > 
> > 
> 
> -- 
> Link Mauve