From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 BD6453B19B1; Wed, 27 May 2026 19:49:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779911361; cv=none; b=qr+V+g2Uyalbwkm/mKvx25JPNBOQHQ1G8Dn9OcY20VwUDZVHHflgJ7mmQQdnibWaue3AGds9YXsyO16s9ybgVLdHXdEmUw4dk5838q3QELgWAuY2hKSObXoyt5WdBXfp83jrxNceOYNIvvprvok4ntAi6/G9BvL4W/buTFHxjMk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779911361; c=relaxed/simple; bh=BOX6oxFNMVOGHWdWk7SOAtjBTLNjNCjT/ks26xjpu1E=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=R0auOEIRk/zMy4I1m2npNk7B9sKSTc7nXi6rvLWHmaxd4I8DWTDdjszpHVpDRckPBcbZ3WpUFHpL/WznD2jQS7XvUG8KhWuLJC9LQuFfrpy9WhcPUQk/77JTkjV2Vs/QVdBC74SCwd2trrdU5lH57B3ThQvhv32YML7g/i+Ihw8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=MDXKKjBG; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="MDXKKjBG" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 389B41F00A3E; Wed, 27 May 2026 19:49:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1779911360; bh=J2iEHJs+dlCLb9cMhei6nH0VvPn5UMkWOBOgpg/1DvM=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=MDXKKjBGTTL2bI5I9xNZXhC/HIW9nMcQptqnzF2lpJh5YFVKewR59CRV/0HerxJt9 KLeRGck8gq1nXKagsG+ylI+5bcvEdQrlXYSuaqCBes1Ec9VOJYCIngdmPFTcSLAy/Y 3ZTFMrHBk0zahdNuYbKzE87o2MDJa7pBjwFOOeoNVhbcLmJfKxonVfidV8kQscLNxe r6W3FG4n1mq9Nk6jNEKdakP2Ovz0oJJ8WKbioLDDaZwhZhVrVYrK9mrcdM9jbqL5Pi iGG+ttY+/VUkVXj5KTLYHranhV6FQqkX9H1GX2mJI93oQPKibzs4u1SCjxcUHAoBCW 5iGUjfs1OXLhA== From: Sasha Levin To: Natanael Copa Cc: Sasha Levin , stable@vger.kernel.org, regressions@lists.linux.dev, linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, vneethv@linux.ibm.com, oberpar@linux.ibm.com, hca@linux.ibm.com, gor@linux.ibm.com, agordeev@linux.ibm.com, borntraeger@linux.ibm.com, svens@linux.ibm.com Subject: Re: [REGRESSION] 6.6.141 s390x build failure in s390/cio due to missing driver_override infrastructure Date: Wed, 27 May 2026 15:48:59 -0400 Message-ID: <20260527-agent5-item005-s390cio@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260526221254.183e23ef@ncopa-desktop.lan> References: <20260525101635.26090-1-ncopa@alpinelinux.org> <20260525231000.agent5-0002@kernel.org> <20260526221254.183e23ef@ncopa-desktop.lan> Precedence: bulk X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit > FYI. We also needed this for the build to pass: > > diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c > [...] > - spin_lock_irq(sch->lock); > + spin_lock_irq(&sch->lock); Thanks - this points at the backport of c34b09cbd6fc0 ("s390/cio: Update purge function to unregister the unused subchannels") which had its own issues on 6.6.y. I reverted c34b09cbd6fc0 on 6.6 so 6.6.142 should build cleanly without the manual fix. If the upstream purge update is still wanted on 6.6, it can be re-submitted as a proper backport once the driver-core prerequisites are in 6.6.142. -- Thanks, Sasha