From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS, USER_AGENT_MUTT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 705B3C282CE for ; Sat, 13 Apr 2019 13:38:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 383A620848 for ; Sat, 13 Apr 2019 13:38:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1555162721; bh=bMMZA8D0Ap9nVSIP2LqpZyl625yUlCqEL1+ZaI5on28=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=mZwXVYBKvsidM4m6KSxq3x9DknaZeM4fZPjIBTBXqh/ouJOtHPSfv3o2KE0MBaiMq p03e2gqXoFK3QBhjqXH4N+g1gp4KLKIpZc1m0u1gHzeNy0n1lEgKZT7BNJnXmg/meG GV2dPO803zl67CloiFW7JmyYQ2vYjj3v7HSWEgPY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727166AbfDMNik (ORCPT ); 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