linux-kernel - Re: linux-next: build failure after merge of the tip tree

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Message-ID: <20251124123249.GP4067720@noisy.programming.kicks-ass.net>
Date: Mon, 24 Nov 2025 13:32:49 +0100
From: Peter Zijlstra <peterz@...radead.org>
To: Stephen Rothwell <sfr@...b.auug.org.au>
Cc: Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...nel.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux Next Mailing List <linux-next@...r.kernel.org>,
	ojeda@...nel.org, boqun.feng@...il.com
Subject: Re: linux-next: build failure after merge of the tip tree

On Mon, Nov 24, 2025 at 11:16:44PM +1100, Stephen Rothwell wrote:
> Hi all,
> 
> After merging the tip tree, today's linux-next build (x86_64 allmodconfig)
> failed like this:
> 
> ERROR: modpost: "NULL" [drivers/gpu/nova-core/nova_core.ko] undefined!
> 

Rust :/

So I have:

$ make O=tmp-build LLVM=-22 allmodconfig
$ make O=tmp-build LLVM=-22 rustavailable
Rust is available!
$ grep -e CONFIG_RUST= -e CONFIG_NOVA= tmp-build/.config
$

Help ?!?