From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tetsuyuki Kobayashi Subject: Re: [PATCH] mmc: sh-mmcif: avoid Oops on spurious interrupts Date: Fri, 21 Sep 2012 11:35:43 +0900 Message-ID: <505BD27F.4040800@kmckk.co.jp> References: <878vdxd3mq.wl%kuninori.morimoto.gx@renesas.com> <20120803050039.GA1614@linux-sh.org> <20120809042844.GF1614@linux-sh.org> <87hasc3bv5.wl%kuninori.morimoto.gx@renesas.com> <874nobqntv.wl%kuninori.morimoto.gx@renesas.com> <20120810123804.GK1614@linux-sh.org> <502DDC97.5080501@kmckk.co.jp> <87wr0us6tg.wl%kuninori.morimoto.gx@renesas.com> <20120820031352.GC25767@linux-sh.org> <87obm6ry98.wl%kuninori.morimoto.gx@renesas.com> <20120820043853.GD25767@linux-sh.org> <87mx1qrx1x.wl%kuninori.morimoto.gx@renesas.com> <5031D9FF.8060801@kmckk.co.jp> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-2022-JP Content-Transfer-Encoding: 7bit Return-path: Received: from vrgw2.firstserver.ne.jp ([164.46.1.45]:51735 "EHLO vrgw2.firstserver.ne.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756852Ab2IUCgA (ORCPT ); Thu, 20 Sep 2012 22:36:00 -0400 In-Reply-To: Sender: linux-mmc-owner@vger.kernel.org List-Id: linux-mmc@vger.kernel.org To: Chris Ball Cc: Guennadi Liakhovetski , yusuke.goda.sx@renesas.com, Kuninori Morimoto , Paul Mundt , Magnus , linux-sh@vger.kernel.org, Kuninori Morimoto , linux-mmc@vger.kernel.org, koba@kmckk.co.jp Hello, Chris (2012/09/19 15:24), Chris Ball wrote: > Hi, > > On Wed, Aug 22 2012, Guennadi Liakhovetski wrote: >> On some systems, e.g., kzm9g, MMCIF interfaces can produce spurious >> interrupts without any active request. To prevent the Oops, that results >> in such cases, don't dereference the mmc request pointer until we make >> sure, that we are indeed processing such a request. >> >> Reported-by: Tetsuyuki Kobayashi >> Signed-off-by: Guennadi Liakhovetski > > Thanks, pushed to mmc-next for 3.7. It needs this patch for kzm9g board to boot kernel 3.6-rc6 successfully. Can I ask you to queue this patch for 3.6-rc7 ? From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tetsuyuki Kobayashi Date: Fri, 21 Sep 2012 02:35:43 +0000 Subject: Re: [PATCH] mmc: sh-mmcif: avoid Oops on spurious interrupts Message-Id: <505BD27F.4040800@kmckk.co.jp> List-Id: References: <878vdxd3mq.wl%kuninori.morimoto.gx@renesas.com> <20120803050039.GA1614@linux-sh.org> <20120809042844.GF1614@linux-sh.org> <87hasc3bv5.wl%kuninori.morimoto.gx@renesas.com> <874nobqntv.wl%kuninori.morimoto.gx@renesas.com> <20120810123804.GK1614@linux-sh.org> <502DDC97.5080501@kmckk.co.jp> <87wr0us6tg.wl%kuninori.morimoto.gx@renesas.com> <20120820031352.GC25767@linux-sh.org> <87obm6ry98.wl%kuninori.morimoto.gx@renesas.com> <20120820043853.GD25767@linux-sh.org> <87mx1qrx1x.wl%kuninori.morimoto.gx@renesas.com> <5031D9FF.8060801@kmckk.co.jp> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Chris Ball Cc: Guennadi Liakhovetski , yusuke.goda.sx@renesas.com, Kuninori Morimoto , Paul Mundt , Magnus , linux-sh@vger.kernel.org, Kuninori Morimoto , linux-mmc@vger.kernel.org, koba@kmckk.co.jp Hello, Chris (2012/09/19 15:24), Chris Ball wrote: > Hi, > > On Wed, Aug 22 2012, Guennadi Liakhovetski wrote: >> On some systems, e.g., kzm9g, MMCIF interfaces can produce spurious >> interrupts without any active request. To prevent the Oops, that results >> in such cases, don't dereference the mmc request pointer until we make >> sure, that we are indeed processing such a request. >> >> Reported-by: Tetsuyuki Kobayashi >> Signed-off-by: Guennadi Liakhovetski > > Thanks, pushed to mmc-next for 3.7. It needs this patch for kzm9g board to boot kernel 3.6-rc6 successfully. Can I ask you to queue this patch for 3.6-rc7 ?