From patchwork Thu Dec 14 06:33:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Manivannan Sadhasivam X-Patchwork-Id: 13492415 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="DvBunkzR" Received: from mail-il1-x12d.google.com (mail-il1-x12d.google.com [IPv6:2607:f8b0:4864:20::12d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CD33BF4 for ; Wed, 13 Dec 2023 22:33:41 -0800 (PST) Received: by mail-il1-x12d.google.com with SMTP id e9e14a558f8ab-35f833adaa6so29445ab.3 for ; Wed, 13 Dec 2023 22:33:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1702535621; x=1703140421; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=DQa3Oh83Y7BJ5yvT1MB3NL690VGSVlOorSazsJGg8O8=; b=DvBunkzR3aTXEws5zejCNZYt1dYO8HtNv22PpeD6BZKmjD3eCmS2gsZcsK+FCMSpNb QS8k2g9Z/aROFkkN6BnY14YNekty0/5l1xGNxGO8EhvXOGrstspSFxWTH4A+zvTVeNQX ddp6QzKJ2HIh72VkQS49DM8JLBZGnlhsln2b/UPTx4iJI7cFrm3RaHr2zH1kfyuFaHLP CTzk3hfIXFofXherSmYH5jbKYjpSmUuChlAw5RCe3HjNi6pOWBfnnrTNKgtIZ2o/Qr8C E5Ox8aAYefsHXyyeGqzoEMbb4p0l2CPZOs9xkm1cuTOEvAsuRQarmwSElYU9rjTfgSb2 z6Zw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702535621; x=1703140421; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=DQa3Oh83Y7BJ5yvT1MB3NL690VGSVlOorSazsJGg8O8=; b=cit8caBGBmaMBr1p0dpnCGiWtyOBGbnhYMzPS3NhE9VyBGxB50JyvXPo59XJmafoyd 795gUKNEk83TpX6RrSnh42Fh+vNHC5Cj6xkHLypfMJxxkbrXxJJNaIyrduHDH3qdbChf KvGgdNC5pNaSH3FIZdk81Aru8QZ2YtCa4ZNZZtMvZGBNmneO+nsqTVRx/SxfIt1mQ7HP WVSLreRGQYEe7A3lEXsy8Y06tH+vkTUqUcSKiszhXVDkkbvx53lKEjqr3GxF7+JtdjvN jYQE5+mwV7rMO12B8t33eF+EwUls3qsTadYbvNJ90oLM/FhuAnrorYxseE/PTBqDTIg0 z2nQ== X-Gm-Message-State: AOJu0YyOgMiHznkeew15Du7lLvGcQDqZnqJi4ul1HtVpHMKF/2K1dczy i53iPbPkDnOXU/cG99gWQI4v X-Google-Smtp-Source: AGHT+IEz9WJYleLURMpZ+fxmZXd0E4sPrwuGGZyApaPAAwDEgLTtswTy+mHFNCYGonBLoIypIEFaLQ== X-Received: by 2002:a05:6e02:184b:b0:35d:6d53:5439 with SMTP id b11-20020a056e02184b00b0035d6d535439mr14590043ilv.11.1702535621114; Wed, 13 Dec 2023 22:33:41 -0800 (PST) Received: from localhost.localdomain ([117.213.102.12]) by smtp.gmail.com with ESMTPSA id q19-20020a170902bd9300b001cc2ebd2c2csm11639491pls.256.2023.12.13.22.33.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 Dec 2023 22:33:40 -0800 (PST) From: Manivannan Sadhasivam To: lpieralisi@kernel.org, kw@linux.com, bhelgaas@google.com Cc: kishon@kernel.org, mhi@lists.linux.dev, linux-arm-msm@vger.kernel.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Manivannan Sadhasivam Subject: [PATCH] PCI: epf-mhi: Fix the DMA data direction of dma_unmap_single() Date: Thu, 14 Dec 2023 12:03:28 +0530 Message-Id: <20231214063328.40657-1-manivannan.sadhasivam@linaro.org> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 In the error path of pci_epf_mhi_edma_write() function, the DMA data direction passed (DMA_FROM_DEVICE) doesn't match the actual direction used for the data transfer. Fix it by passing the correct one (DMA_TO_DEVICE). Fixes: 7b99aaaddabb ("PCI: epf-mhi: Add eDMA support") Signed-off-by: Manivannan Sadhasivam Reviewed-by: Krzysztof Wilczyński --- Bjorn, Krzysztof, I'd like to apply this patch to MHI tree on top of eDMA async patches due to dependency: https://lore.kernel.org/linux-pci/20231127124529.78203-1-manivannan.sadhasivam@linaro.org/ drivers/pci/endpoint/functions/pci-epf-mhi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) base-commit: f5668f251e29292326e45a022f933c15740a8af2 diff --git a/drivers/pci/endpoint/functions/pci-epf-mhi.c b/drivers/pci/endpoint/functions/pci-epf-mhi.c index 472bc489b754..d3d6a1054036 100644 --- a/drivers/pci/endpoint/functions/pci-epf-mhi.c +++ b/drivers/pci/endpoint/functions/pci-epf-mhi.c @@ -424,7 +424,7 @@ static int pci_epf_mhi_edma_write(struct mhi_ep_cntrl *mhi_cntrl, } err_unmap: - dma_unmap_single(dma_dev, src_addr, buf_info->size, DMA_FROM_DEVICE); + dma_unmap_single(dma_dev, src_addr, buf_info->size, DMA_TO_DEVICE); err_unlock: mutex_unlock(&epf_mhi->lock);