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 X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3E140C43381 for ; Wed, 27 Mar 2019 18:20:47 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 0F90F20651 for ; Wed, 27 Mar 2019 18:20:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="AX+GlYPv"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="n17/Bvrn" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0F90F20651 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=tAzmR0P/ItPttcpuVE8DgZqf8uB8BxYJxBt/ab438rw=; b=AX+GlYPv9pgIie TPvz2SWMP4ZbjjNrWeTpdG07loRXfX49LNObWcna0D9UcUTREuUcvjC4OPC2mdxgPiCgR8ikFWYpa 5w50lGTP0qPay3xc+0CTSgncKgOSXAmu9Tkn7O+8tr6vPUZwLuMt4zhjAymWkgk3oJoP2Q55Ec77/ GHCzlo+n15vHOXZmCdfgf1F9lQO75rML1aMSW7wBLMRf2sz7ehFSgxkpm9YSvPYemzE2hHVI4h9Kq SZCcU7oWrNRNtQMl4ExfdpSrNweiFogvxk0KCQvNHkK5OsSoKTpwCFo/wj9sQl5BNE1b/yvLnzwEi aQ1sqOxWyLpgaA7S7CxQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1h9DAD-0000Zb-1k; Wed, 27 Mar 2019 18:20:37 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1h9D9q-00007l-Pq for linux-arm-kernel@lists.infradead.org; Wed, 27 Mar 2019 18:20:18 +0000 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 6A14F2184D; Wed, 27 Mar 2019 18:20:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1553710805; bh=Ca/rvb3yJ4CpVWB4KDZBBTrJBFoDN4btwzhxYyajGYc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=n17/BvrntdmWoZx44YZKMomqz9e6VqaysC7HiqsgCCVPGCDwxv1GLY0zW7V5k5G1o aI93feFRRWBGc/g7x/gZkBxI+s+WfbRZJFh161HeOotwh7p3+26KkLvq4ebrmI0lBI dNXyV2fbv3fDbH5+3BzIKLEZdyQ4+OUr62nU2sO4= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH AUTOSEL 4.14 109/123] dmaengine: qcom_hidma: initialize tx flags in hidma_prep_dma_* Date: Wed, 27 Mar 2019 14:16:13 -0400 Message-Id: <20190327181628.15899-109-sashal@kernel.org> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190327181628.15899-1-sashal@kernel.org> References: <20190327181628.15899-1-sashal@kernel.org> MIME-Version: 1.0 X-Patchwork-Hint: Ignore X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190327_112015_085853_EFF21ACB X-CRM114-Status: GOOD ( 10.66 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Sasha Levin , Shunyong Yang , linux-arm-msm@vger.kernel.org, Vinod Koul , dmaengine@vger.kernel.org, Joey Zheng , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Shunyong Yang [ Upstream commit 875aac8a46424e5b73a9ff7f40b83311b609e407 ] In async_tx_test_ack(), it uses flags in struct dma_async_tx_descriptor to check the ACK status. As hidma reuses the descriptor in a free list when hidma_prep_dma_*(memcpy/memset) is called, the flag will keep ACKed if the descriptor has been used before. This will cause a BUG_ON in async_tx_quiesce(). kernel BUG at crypto/async_tx/async_tx.c:282! Internal error: Oops - BUG: 0 1 SMP ... task: ffff8017dd3ec000 task.stack: ffff8017dd3e8000 PC is at async_tx_quiesce+0x54/0x78 [async_tx] LR is at async_trigger_callback+0x98/0x110 [async_tx] This patch initializes flags in dma_async_tx_descriptor by the flags passed from the caller when hidma_prep_dma_*(memcpy/memset) is called. Cc: Joey Zheng Reviewed-by: Sinan Kaya Signed-off-by: Shunyong Yang Signed-off-by: Vinod Koul Signed-off-by: Sasha Levin --- drivers/dma/qcom/hidma.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/dma/qcom/hidma.c b/drivers/dma/qcom/hidma.c index 177d7a24dd39..dd15a829e792 100644 --- a/drivers/dma/qcom/hidma.c +++ b/drivers/dma/qcom/hidma.c @@ -411,6 +411,7 @@ hidma_prep_dma_memcpy(struct dma_chan *dmach, dma_addr_t dest, dma_addr_t src, if (!mdesc) return NULL; + mdesc->desc.flags = flags; hidma_ll_set_transfer_params(mdma->lldev, mdesc->tre_ch, src, dest, len, flags, HIDMA_TRE_MEMCPY); @@ -443,6 +444,7 @@ hidma_prep_dma_memset(struct dma_chan *dmach, dma_addr_t dest, int value, if (!mdesc) return NULL; + mdesc->desc.flags = flags; hidma_ll_set_transfer_params(mdma->lldev, mdesc->tre_ch, value, dest, len, flags, HIDMA_TRE_MEMSET); -- 2.19.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel