From patchwork Sun Jan 9 18:57:04 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe JAILLET X-Patchwork-Id: 12707928 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id EA00CC4332F for ; Sun, 9 Jan 2022 18:57:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229455AbiAIS5V (ORCPT ); Sun, 9 Jan 2022 13:57:21 -0500 Received: from smtp04.smtpout.orange.fr ([80.12.242.126]:55970 "EHLO smtp.smtpout.orange.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231809AbiAIS5U (ORCPT ); Sun, 9 Jan 2022 13:57:20 -0500 Received: from pop-os.home ([90.11.185.88]) by smtp.orange.fr with ESMTPA id 6dNWnw2VWsoWh6dNWnw5jl; Sun, 09 Jan 2022 19:57:19 +0100 X-ME-Helo: pop-os.home X-ME-Auth: YWZlNiIxYWMyZDliZWIzOTcwYTEyYzlhMmU3ZiQ1M2U2MzfzZDfyZTMxZTBkMTYyNDBjNDJlZmQ3ZQ== X-ME-Date: Sun, 09 Jan 2022 19:57:19 +0100 X-ME-IP: 90.11.185.88 From: Christophe JAILLET To: James Smart , Ram Vegesna , "James E.J. Bottomley" , "Martin K. Petersen" Cc: linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org, Christophe JAILLET , linux-scsi@vger.kernel.org, target-devel@vger.kernel.org Subject: [PATCH] scsi: efct: Remove useless DMA-32 fallback configuration Date: Sun, 9 Jan 2022 19:57:04 +0100 Message-Id: <958bcb2a6e86344c14f38369e8e7079615a2b0e3.1641754613.git.christophe.jaillet@wanadoo.fr> X-Mailer: git-send-email 2.32.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: target-devel@vger.kernel.org As stated in [1], dma_set_mask() with a 64-bit mask never fails if dev->dma_mask is non-NULL. So, if it fails, the 32 bits case will also fail for the same reason. Simplify code and remove some dead code accordingly. While at it, return the error code returned by dma_set_mask_and_coherent() instead of -1. [1]: https://lkml.org/lkml/2021/6/7/398 Signed-off-by: Christophe JAILLET Reviewed-by: Christoph Hellwig --- This patch was not part of the 1st serie I've sent. So there is no Reviewed-by tag. --- drivers/scsi/elx/efct/efct_driver.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) diff --git a/drivers/scsi/elx/efct/efct_driver.c b/drivers/scsi/elx/efct/efct_driver.c index ae62fc3c9ee3..b08fc8839808 100644 --- a/drivers/scsi/elx/efct/efct_driver.c +++ b/drivers/scsi/elx/efct/efct_driver.c @@ -541,13 +541,10 @@ efct_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) pci_set_drvdata(pdev, efct); - if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)) != 0) { - dev_warn(&pdev->dev, "trying DMA_BIT_MASK(32)\n"); - if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)) != 0) { - dev_err(&pdev->dev, "setting DMA_BIT_MASK failed\n"); - rc = -1; - goto dma_mask_out; - } + rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); + if (rc) { + dev_err(&pdev->dev, "setting DMA_BIT_MASK failed\n"); + goto dma_mask_out; } num_interrupts = efct_device_interrupts_required(efct);