From patchwork Wed Feb 13 11:42:32 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hannes Reinecke X-Patchwork-Id: 10809647 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 6C3A36C2 for ; Wed, 13 Feb 2019 11:42:48 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5A4252CD04 for ; Wed, 13 Feb 2019 11:42:48 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4E7B72CD8B; Wed, 13 Feb 2019 11:42:48 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E77A52CD04 for ; Wed, 13 Feb 2019 11:42:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2403965AbfBMLmp (ORCPT ); Wed, 13 Feb 2019 06:42:45 -0500 Received: from mx2.suse.de ([195.135.220.15]:47668 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1733027AbfBMLmo (ORCPT ); Wed, 13 Feb 2019 06:42:44 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 589BEAF1E; Wed, 13 Feb 2019 11:42:43 +0000 (UTC) From: Hannes Reinecke To: Christoph Hellwig Cc: "Martin K. Petersen" , James Bottomley , linux-scsi@vger.kernel.org, Ewan Milne , Hannes Reinecke , stable@vger.kernel.org, Hannes Reinecke Subject: [PATCH 2/4] hptiop: fix calls to dma_set_mask_and_coherent() Date: Wed, 13 Feb 2019 12:42:32 +0100 Message-Id: <20190213114234.67275-3-hare@suse.de> X-Mailer: git-send-email 2.16.4 In-Reply-To: <20190213114234.67275-1-hare@suse.de> References: <20190213114234.67275-1-hare@suse.de> Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The change to use dma_set_mask_and_coherent() incorrectly made a second call with the 32 bit DMA mask value when the call with the 64 bit DMA mask value succeeded. This resulted in NVMe/FC connections failing due to corrupted data buffers, and various other SCSI/FCP I/O errors. Fixes: 453cd3700ca3 ("scsi: hptiop: use dma_set_mask") Cc: Suggested-by: Ewan D. Milne Signed-off-by: Hannes Reinecke --- drivers/scsi/hptiop.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/hptiop.c b/drivers/scsi/hptiop.c index 3eedfd4f8f57..251c084a6ff0 100644 --- a/drivers/scsi/hptiop.c +++ b/drivers/scsi/hptiop.c @@ -1292,6 +1292,7 @@ static int hptiop_probe(struct pci_dev *pcidev, const struct pci_device_id *id) dma_addr_t start_phy; void *start_virt; u32 offset, i, req_size; + int rc; dprintk("hptiop_probe(%p)\n", pcidev); @@ -1308,9 +1309,12 @@ static int hptiop_probe(struct pci_dev *pcidev, const struct pci_device_id *id) /* Enable 64bit DMA if possible */ iop_ops = (struct hptiop_adapter_ops *)id->driver_data; - if (dma_set_mask(&pcidev->dev, - DMA_BIT_MASK(iop_ops->hw_dma_bit_mask)) || - dma_set_mask(&pcidev->dev, DMA_BIT_MASK(32))) { + rc = dma_set_mask(&pcidev->dev, + DMA_BIT_MASK(iop_ops->hw_dma_bit_mask)); + if (rc) + rc = dma_set_mask(&pcidev->dev, DMA_BIT_MASK(32)); + + if (rc) { printk(KERN_ERR "hptiop: fail to set dma_mask\n"); goto disable_pci_device; }