From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C5639CA0EED for ; Sat, 23 Aug 2025 16:11:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=CqupMxcfvgHjpWikt47ijlf0/lbzzSMQYq44Dxz2xkw=; b=u1RPur5L8HTl7qrASR8LDzeWb8 dL03MQBTbLWSSDvIP113NCeAsGDaoJwVYGUu0/udcRSdLlW0YOl66Sg+YWcGXoBHQIiZbxeTD6EUW N5LRhccXnQsjXOWMmZupRsjJHqkyARbbEb9Kc5aDrRKQbN3NQU98mASUJ6ljyVHz/SxBZsKG5NnNZ Dgn19bS2ziq+6xIlQ8Y9rCvY7ntlM3B14gjKdZkWntDx2fK/jj+tRE78UXFa4mWEJo8RwWPImlyIt hHRRDDfffKFxSsmrh6tHF4LBHd/2o0FOASVN2hKc0V9Ne/GvOKJqV7prjP1JUAMgryk90Syv9pg92 9uugt37A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1upqpb-00000004zY9-1078; Sat, 23 Aug 2025 16:11:03 +0000 Received: from nyc.source.kernel.org ([2604:1380:45d1:ec00::3]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1upqci-00000004ww3-1Wt5 for linux-arm-kernel@lists.infradead.org; Sat, 23 Aug 2025 15:57:45 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by nyc.source.kernel.org (Postfix) with ESMTP id 8F723A58CB9; Sat, 23 Aug 2025 15:57:43 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4CBA9C116B1; Sat, 23 Aug 2025 15:57:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1755964663; bh=36rUEQ/nyOji+fp5dS6bVayQxIrp+bVWGLzl//eyA4w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=P57F5fo0GhLEE06FSqPzmciqCyucHWjCLkal9nX7/kDyGhjbaW5xM/QAmUmmfULJx WufekpRvXthRkhgHHcYgMWgFTLunzBjmJq9/CKP8aSOPcjwy3M7HJgi40AgUERhv8b ilKq9JIR8C0lpHadn+0omYKy/Wn243gANPuQO+lq1gqy0u9EKMYB4vsygF4er96VDT 6Ud3x4BzabV+R6EWH1i9ZLpZtOcO9TaFC99KvAec7Wuz/UEuhabxDKkn7VW5y4B8pq XQ68+BKnzjkldGrv+qXbHAIe9hKh606ZVqE7jmnVbgyhSbjSDMiHQaG9splpYN0Icl EdpMd4Ht7OZDg== From: Jisheng Zhang To: Vinod Koul , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Robin Murphy Cc: dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 04/14] dmaengine: dma350: Check dma_cookie_status() ret code and txstate Date: Sat, 23 Aug 2025 23:39:59 +0800 Message-ID: <20250823154009.25992-5-jszhang@kernel.org> X-Mailer: git-send-email 2.50.0 In-Reply-To: <20250823154009.25992-1-jszhang@kernel.org> References: <20250823154009.25992-1-jszhang@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250823_085744_471906_172B52BB X-CRM114-Status: GOOD ( 10.47 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org If dma_cookie_status() returns DMA_COMPLETE, we can return immediately. >From another side, the txstate is an optional parameter used to get a struct with auxilary transfer status information. When not provided the call to device_tx_status() should return the status of the dma cookie. Return the status of dma cookie when the txstate optional parameter is not provided. Signed-off-by: Jisheng Zhang --- drivers/dma/arm-dma350.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/dma/arm-dma350.c b/drivers/dma/arm-dma350.c index 96350d15ed85..17af9bb2a18f 100644 --- a/drivers/dma/arm-dma350.c +++ b/drivers/dma/arm-dma350.c @@ -377,6 +377,8 @@ static enum dma_status d350_tx_status(struct dma_chan *chan, dma_cookie_t cookie u32 residue = 0; status = dma_cookie_status(chan, cookie, state); + if (status == DMA_COMPLETE || !state) + return status; spin_lock_irqsave(&dch->vc.lock, flags); if (cookie == dch->cookie) { -- 2.50.0