Received: by 2002:a25:4158:0:0:0:0:0 with SMTP id o85csp509277yba; Sat, 13 Apr 2019 06:39:37 -0700 (PDT) X-Google-Smtp-Source: APXvYqw3F0xW/t45EM6ZxcaSwomWKnUHEWkj8oDwabyj/WZUvqx1/xOO2rxqCNglT1zlwmRDLcSG X-Received: by 2002:aa7:85d9:: with SMTP id z25mr63398835pfn.31.1555162777566; Sat, 13 Apr 2019 06:39:37 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1555162777; cv=none; d=google.com; s=arc-20160816; b=oPgiiBqb3QRez6zwtu1I/f94P48kXbXd9YH9WXktKu7117UcR12SPrziQlqxefKjo9 e9ta3uoURgHbWtFxqIwZgs9zanAw4yfCan/H+5lBW9SIwSwxihcsQAoPbSF7SFZw15Dv TxoY7jf7sRYdJvYBKN9loKKdZSC1FSvYtvGZda8URMS1T/0dMDvtkRSbqQ3H1IJxaj8Q MHmsjl0Y+5krQBskFzogT8WNDxrNKKPGMIS5eF4prSwmY9JwOe9ZX0l33rtdb55jeVQR WeeoaW8jfswAxwEjnTDNwPkMiXoDDibaih1XYfQu9mKzIkDoYqJGUkmvhSnoQXl1fdg/ gfiA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:dkim-signature; bh=aKVewn622bh/8vJLAMDFZiXHg0tGTt5glVW03LeoiqM=; b=VtbTRHaNci0f0+drhWWYW+YFGPYMUH2mI8pibpb0Swm05KpL5K7oZQESSTuukNXjf8 Rq4gRcmwrZXMEbPUI5j6gyc7wULlbvP96gYd7VcRyzmtsnvSbAJpbEcUracUHCNVy3lK l4oGlLbSGN0tAjU+RFL2tRIGZzvZ1F9q2GIFqUC1OHWOWem4HpOOvJoXktMTIfwo6B37 vNJivtcftM1dNqW9iWtFoj7Y6CjiBiqEFwXBrlbdFnZ7InUsIkdpFKqD/pdHfy6kA8nc V+rWTICY8X/29b9s3CZ2phNfRsraY+PN3gMAAo3h9ChATNd71AZJQGzM5CRjM8vPlEiB O12g== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=qBZaExae; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id r7si42538534ple.70.2019.04.13.06.39.21; Sat, 13 Apr 2019 06:39:37 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=qBZaExae; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727154AbfDMNik (ORCPT + 99 others); Sat, 13 Apr 2019 09:38:40 -0400 Received: from mail.kernel.org ([198.145.29.99]:52742 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726301AbfDMNij (ORCPT ); Sat, 13 Apr 2019 09:38:39 -0400 Received: from localhost (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id BCEA7206B7; Sat, 13 Apr 2019 13:38:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1555162719; bh=bMMZA8D0Ap9nVSIP2LqpZyl625yUlCqEL1+ZaI5on28=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=qBZaExaeKui+MjU/DwAmSlyGeVSe3Yi20jVVroX78j8H3xalkIfx6nh4TrhXMt+dI 6Rmwj3g8zACNAByCW9tbhbhuwsrUgt150SUp06ND74kLVFPYTPb2rQdPK4pAXQKQD5 DwfiNKjHGQW0Nyvb9kdr0nZpegPz/dC/KWkQ7QG8= Date: Sat, 13 Apr 2019 09:38:37 -0400 From: Sasha Levin To: Michael Kelley Cc: Dexuan Cui , "gregkh@linuxfoundation.org" , Stephen Hemminger , Sasha Levin , Haiyang Zhang , KY Srinivasan , "devel@linuxdriverproject.org" , "linux-kernel@vger.kernel.org" , "marcelo.cerri@canonical.com" , "apw@canonical.com" , "olaf@aepfle.de" , vkuznets , "jasowang@redhat.com" , "stable@vger.kernel.org" Subject: Re: [PATCH] vmbus: Remove the undesired put_cpu_ptr() in hv_synic_cleanup() Message-ID: <20190413133837.GU11568@sasha-vm> References: <20190412233429.29146-1-decui@microsoft.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Apr 13, 2019 at 02:19:52AM +0000, Michael Kelley wrote: >From: Dexuan Cui Sent: Friday, April 12, 2019 4:35 PM >> >> With CONFIG_DEBUG_PREEMPT=y, the put_cpu_ptr() triggiers an underflow >> warning in preempt_count_sub(). >> >> Fixes: 37cdd991fac8 ("vmbus: put related per-cpu variable together") >> Cc: stable@vger.kernel.org >> Cc: Stephen Hemminger >> Signed-off-by: Dexuan Cui > >Reviewed-by: Michael Kelley Queued for hyperv-fixes, thanks all. -- Thanks, Sasha