From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:48493 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S941371AbcJZIRz (ORCPT ); Wed, 26 Oct 2016 04:17:55 -0400 Subject: Patch "scsi: zfcp: spin_lock_irqsave() is not nestable" has been added to the 4.8-stable tree To: dan.carpenter@oracle.com, gregkh@linuxfoundation.org, maier@linux.vnet.ibm.com, martin.petersen@oracle.com Cc: , From: Date: Wed, 26 Oct 2016 10:16:25 +0200 Message-ID: <1477469785238220@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled scsi: zfcp: spin_lock_irqsave() is not nestable to the 4.8-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: scsi-zfcp-spin_lock_irqsave-is-not-nestable.patch and it can be found in the queue-4.8 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From e7cb08e894a0b876443ef8fdb0706575dc00a5d2 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Fri, 14 Oct 2016 16:18:39 -0400 Subject: scsi: zfcp: spin_lock_irqsave() is not nestable From: Dan Carpenter commit e7cb08e894a0b876443ef8fdb0706575dc00a5d2 upstream. We accidentally overwrite the original saved value of "flags" so that we can't re-enable IRQs at the end of the function. Presumably this function is mostly called with IRQs disabled or it would be obvious in testing. Fixes: aceeffbb59bb ("zfcp: trace full payload of all SAN records (req,resp,iels)") Signed-off-by: Dan Carpenter Signed-off-by: Steffen Maier Signed-off-by: Martin K. Petersen Signed-off-by: Greg Kroah-Hartman --- drivers/s390/scsi/zfcp_dbf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/s390/scsi/zfcp_dbf.c +++ b/drivers/s390/scsi/zfcp_dbf.c @@ -384,7 +384,7 @@ void zfcp_dbf_san(char *tag, struct zfcp /* if (len > rec_len): * dump data up to cap_len ignoring small duplicate in rec->payload */ - spin_lock_irqsave(&dbf->pay_lock, flags); + spin_lock(&dbf->pay_lock); memset(payload, 0, sizeof(*payload)); memcpy(payload->area, paytag, ZFCP_DBF_TAG_LEN); payload->fsf_req_id = req_id; Patches currently in stable-queue which might be from dan.carpenter@oracle.com are queue-4.8/scsi-zfcp-spin_lock_irqsave-is-not-nestable.patch