From patchwork Sat Jan 15 07:40:47 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe JAILLET X-Patchwork-Id: 12714341 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 45022C433F5 for ; Sat, 15 Jan 2022 07:40:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231331AbiAOHkw (ORCPT ); Sat, 15 Jan 2022 02:40:52 -0500 Received: from smtp03.smtpout.orange.fr ([80.12.242.125]:57993 "EHLO smtp.smtpout.orange.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229863AbiAOHkw (ORCPT ); Sat, 15 Jan 2022 02:40:52 -0500 Received: from pop-os.home ([90.126.236.122]) by smtp.orange.fr with ESMTPA id 8dgAniCymhTNk8dgAn3hnT; Sat, 15 Jan 2022 08:40:51 +0100 X-ME-Helo: pop-os.home X-ME-Auth: YWZlNiIxYWMyZDliZWIzOTcwYTEyYzlhMmU3ZiQ1M2U2MzfzZDfyZTMxZTBkMTYyNDBjNDJlZmQ3ZQ== X-ME-Date: Sat, 15 Jan 2022 08:40:51 +0100 X-ME-IP: 90.126.236.122 From: Christophe JAILLET To: Olivier Dautricourt , Stefan Roese , Vinod Koul Cc: linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org, Christophe JAILLET , dmaengine@vger.kernel.org Subject: [PATCH] dmaengine: altera-msgdma: Remove useless DMA-32 fallback configuration Date: Sat, 15 Jan 2022 08:40:47 +0100 Message-Id: <01058ada3a0dea207212182ca7525060a204f1e1.1642232423.git.christophe.jaillet@wanadoo.fr> X-Mailer: git-send-email 2.32.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: dmaengine@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. [1]: https://lore.kernel.org/linux-kernel/YL3vSPK5DXTNvgdx@infradead.org/#t Signed-off-by: Christophe JAILLET Acked-by: Olivier Dautricourt --- drivers/dma/altera-msgdma.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/dma/altera-msgdma.c b/drivers/dma/altera-msgdma.c index f5b885d69cd3..6f56dfd375e3 100644 --- a/drivers/dma/altera-msgdma.c +++ b/drivers/dma/altera-msgdma.c @@ -891,9 +891,7 @@ static int msgdma_probe(struct platform_device *pdev) ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); if (ret) { dev_warn(&pdev->dev, "unable to set coherent mask to 64"); - ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); - if (ret) - goto fail; + goto fail; } msgdma_reset(mdev);