From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.aaazen.com (99-33-87-210.lightspeed.sntcca.sbcglobal.net [99.33.87.210]) (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 0D4592DF707; Fri, 13 Mar 2026 22:11:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=99.33.87.210 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773439863; cv=none; b=CuKZDn3/ZKQ7A2i/sKdVlWFWZbmGGk18HNPUkASysEsDKLmLq2fkW5iYoFKgp8kSIBkQsaxSuQkV73bZBVqemEY8gEC184zkGIJphGQ3DrSjOpwU25hrQU9Q9CEktDZyDjDlcDDBLWroWo/2uRE6bIuGvZagTdsOwfLdiZVLCfE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773439863; c=relaxed/simple; bh=iB3FvdL1/ak7SaRE+09pl8/n1ufE21vz+EeoB662cIM=; h=Date:From:To:cc:Subject:In-Reply-To:Message-ID:References: MIME-Version:Content-Type; b=F/TxendUO2CUSnjVNydGrOElXqNRj8O6TRMXo+tkPGZU2RNRuX+u1R43gcBzNdle1urED36We0iIlccab57xgtgtaS70az3hUUv3XDHs3BocHkk1M4Yu6TajNEOTjQ0o6JE2keFDgoryTG1vCF6ONpX7Aekc0NV9XNIqQsxMTkI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=aaazen.com; spf=pass smtp.mailfrom=aaazen.com; arc=none smtp.client-ip=99.33.87.210 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=aaazen.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=aaazen.com Received: from localhost (localhost [127.0.0.1]) by thursday.test (OpenSMTPD) with ESMTP id a2d8674c; Fri, 13 Mar 2026 15:04:21 -0700 (PDT) Date: Fri, 13 Mar 2026 15:04:21 -0700 (PDT) From: Richard Narron X-X-Sender: richard@thursday.test To: Sasha Levin cc: Cal Peake , Kernel Mailing List , Linux stable , Andrew Morton , Linus Torvalds , jslaby@suse.cz, Greg Kroah-Hartman , Patrick Volkerding Subject: Re: Linux 6.18.17 -- build regression In-Reply-To: Message-ID: <358262e8-70ca-9db3-1774-9170cc69dae7@aaazen.com> References: <20260312112454.940017-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII On Thu, 12 Mar 2026, Sasha Levin wrote: > On Thu, Mar 12, 2026 at 06:24:19PM -0400, Cal Peake wrote: > > On Thu, 12 Mar 2026, Sasha Levin wrote: > > > > > I'm announcing the release of the 6.18.17 kernel. > > > > > > All users of the 6.18 kernel series must upgrade. > > > > > > > Hi, > > > > This release breaks my build with the following output: > > > > LD .tmp_vmlinux1 > > ld: drivers/cxl/acpi.o: in function `add_root_nvdimm_bridge': > > acpi.c:(.text+0x16f): undefined reference to `devm_cxl_add_nvdimm_bridge' > > make[2]: *** [scripts/Makefile.vmlinux:72: vmlinux.unstripped] Error 1 > > make[1]: *** [/home/cal/linux/kernel/build/linux-6.18.17/Makefile:1242: > > vmlinux] Error 2 > > make: *** [Makefile:248: __sub-make] Error 2 > > > > I've attached my gzipped config. Commit af9bf9889663 looks possibly > > guilty, but I don't have time at the moment to fully verify. > > > > Please let me know if I can provide anything else. > > Hey, > > Thanks for the report! > > Could you please confirm that cherry-picking 93d0fcdddc9e ("cxl/acpi: Fix > CXL_ACPI and CXL_PMEM Kconfig tristate mismatch") fixes the issue you're > seeing? > Hello Sasha, Patrick Volkerding found a patch that worked for me: https://lore.kernel.org/lkml/20260302200429.803417-1-gourry@gourry.net/ In drivers/cxl/acpi.c static int cxl_acpi_probe(struct platform_device *pdev) it changes IS_ENABLED(CONFIG_CXL_PMEM) to IS_REACHABLE(CONFIG_CXL_PMEM) Richard Narron