From nobody Sat Feb 7 05:49:20 2026 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 055D8257821; Wed, 28 Jan 2026 11:02:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769598127; cv=none; b=Mfqpdyqc+oxSzNwm1MCMZwgvK3C//E6DJgjijIAAf+bgTqMn22C/oBVURj1iHHj2j9z5Q1jaQe8ZmaC6GK/ySFOjGps6rUnOF3zWeewV6ilGWjeRgLOpuonJXOfIjZEzRaGf+SfBqqCt+ZaDKmEWmhsg36QWMHVMS6+yRpOgtg0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769598127; c=relaxed/simple; bh=s1X1Do9C9OXSSba1gSIxKNZz/xpZBQzuY0BjxKizJdc=; h=Date:From:To:Subject:Cc:MIME-Version:Message-ID:Content-Type; b=hvOizcMiqbKt1GBYj4j/QVIBw4PvLmHsDxOh4wEGPVQurXtdzECaoDNYB5X8+Bdj1bVEUZxqv+6xjr7dxMmpa5AO9OxAgZoL/653eGVYzrgipAtl88bYab6bvEMU4meU7g2waFJHUn2j9HrgDuq6NUtXnmuw2usOEqydtEa6Js8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=gESLiaU2; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=sAQ3oZTU; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="gESLiaU2"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="sAQ3oZTU" Date: Wed, 28 Jan 2026 11:02:02 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1769598123; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=W9WcRBd0i6RuOQoclYMtXVVnJP/stsJD97QtJnojUsE=; b=gESLiaU2TVfluwH5QyT0JaIETKGhHpWIksPCWSbgH1imT0BVBMpqagYaH6cS54PHsWIBOi mcUGW+m2Jy12gjHdvS7DQl1FZXcWkpoNobee4DKX+UmuMy9WqETj8q+xNRtMyEmUZDbX8d cMmLqmNiIoIkEpq2S1eY3Y55M17HU7GoP2xTD3/ZRdeCNf6rl2MiJV10Vgi9Xqfi8AhBCJ hEZbUV72phu8vgRPDWhxzTBPw72Bh/NvUWTBWYzAE0SpXI1rY3moX4xan5evXQnFiCSfGP bBLZoc5nPyWcY+72ipatEIk3Yc+uub+SenBkjOEBkMEB+N8AidhjLyuQsgF49Q== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1769598123; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=W9WcRBd0i6RuOQoclYMtXVVnJP/stsJD97QtJnojUsE=; b=sAQ3oZTUHBHIBpvjl1sNoxrlMnb3EGpjUoMd8yGbct5Y0tcThr3/0J7aEGBbG57JcAgsc3 319JYqDCdtGE1hCQ== From: "tip-bot2 for Ingo Molnar" Sender: tip-bot2@linutronix.de Reply-to: linux-kernel@vger.kernel.org To: linux-tip-commits@vger.kernel.org Subject: [tip: x86/platform] x86/hyperv: Fix smp_ops build failure on UP kernels Cc: Mukesh Rathor , Wei Liu , linux-kernel@vger.kernel.org, Ingo Molnar , x86@kernel.org Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-ID: <176959812223.510.4055929851272785854.tip-bot2@tip-bot2> Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Precedence: bulk Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable The following commit has been merged into the x86/platform branch of tip: Commit-ID: ac059ae422d7d05ed9d62970a30fa3b95870b967 Gitweb: https://git.kernel.org/tip/ac059ae422d7d05ed9d62970a30fa3b95= 870b967 Author: Ingo Molnar AuthorDate: Wed, 28 Jan 2026 11:35:20 +01:00 Committer: Ingo Molnar CommitterDate: Wed, 28 Jan 2026 11:54:04 +01:00 x86/hyperv: Fix smp_ops build failure on UP kernels CI testing found this build failure: arch/x86/hyperv/hv_crash.c:631:9: error: =E2=80=98smp_ops=E2=80=99 undecl= ared (first use in this function) And I bisected it back to the initial commit that enabled this feature: 77c860d2dbb72d1f3c6a2e882a07d19eca399db5 is the first bad commit commit 77c860d2dbb72d1f3c6a2e882a07d19eca399db5 (HEAD) Author: Mukesh Rathor Date: Mon Oct 6 15:42:08 2025 -0700 x86/hyperv: Enable build of hypervisor crashdump collection files Hyperv should probably be limited to SMP kernels, as nobody appears to be testing it on UP kernels. Until then, fix the smp_ops assumption. Build tested only. Fixes: 77c860d2dbb72 ("x86/hyperv: Enable build of hypervisor crashdump col= lection files") Cc: Mukesh Rathor Cc: Wei Liu Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar --- arch/x86/hyperv/hv_crash.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/x86/hyperv/hv_crash.c b/arch/x86/hyperv/hv_crash.c index c0e2292..a78e4fe 100644 --- a/arch/x86/hyperv/hv_crash.c +++ b/arch/x86/hyperv/hv_crash.c @@ -628,7 +628,9 @@ void hv_root_crash_init(void) if (rc) goto err_out; =20 +#ifdef CONFIG_SMP smp_ops.crash_stop_other_cpus =3D hv_crash_stop_other_cpus; +#endif =20 crash_kexec_post_notifiers =3D true; hv_crash_enabled =3D true;