linux-kernel - Re: [PATCH 6.18 2/2] sched/topology: Fix sched domain build error for GNR, CWF in SNC-3 mode

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Message-ID: <b5e9109e4be90f596da9c12cbb2e6bf0bf55a0c6.camel@linux.intel.com>
Date: Mon, 09 Feb 2026 11:21:12 -0800
From: Tim Chen <tim.c.chen@...ux.intel.com>
To: K Prateek Nayak <kprateek.nayak@....com>, Greg KH
	 <gregkh@...uxfoundation.org>
Cc: stable@...r.kernel.org, Peter Zijlstra <peterz@...radead.org>, Ingo
 Molnar	 <mingo@...nel.org>, Juri Lelli <juri.lelli@...hat.com>, Dietmar
 Eggemann	 <dietmar.eggemann@....com>, Ben Segall <bsegall@...gle.com>, Mel
 Gorman	 <mgorman@...e.de>, Valentin Schneider <vschneid@...hat.com>, Tim
 Chen	 <tim.c.chen@...el.com>, Vincent Guittot <vincent.guittot@...aro.org>,
 Len Brown	 <len.brown@...el.com>, linux-kernel@...r.kernel.org, Chen Yu
 <yu.c.chen@...el.com>,  "Gautham R . Shenoy" <gautham.shenoy@....com>, Zhao
 Liu <zhao1.liu@...el.com>, Vinicius Costa Gomes <vinicius.gomes@...el.com>,
  Arjan Van De Ven <arjan.van.de.ven@...el.com>
Subject: Re: [PATCH 6.18 2/2] sched/topology: Fix sched domain build error
 for GNR, CWF in SNC-3 mode

On Mon, 2026-02-09 at 09:29 +0530, K Prateek Nayak wrote:
> Hello Greg,
> 
> On 2/7/2026 8:59 PM, Greg KH wrote:
> > This breaks the build:
> >   CC      arch/x86/kernel/smpboot.o
> > arch/x86/kernel/smpboot.c:548:5: error: no previous prototype for ‘arch_sched_node_distance’ [-Werror=missing-prototypes]
> >   548 | int arch_sched_node_distance(int from, int to)
> >       |     ^~~~~~~~~~~~~~~~~~~~~~~~
> > cc1: all warnings being treated as errors
> > 
> > How was it tested?
> 
> I believe this build issue was fixed by upstream commit 73cbcfe255f7
> ("sched/topology,x86: Fix build warning")
> 
> (Full upstream SHA: 73cbcfe255f7edca915d978a7d1b0a11f2d62812)
> 
> P.S. It cherry-picks cleanly on top of "Linux 6.18.9".

Pratek,

Thanks for pointing to the patch.

Tim