From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751396AbdGPOat (ORCPT ); Sun, 16 Jul 2017 10:30:49 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:33778 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751268AbdGPOap (ORCPT ); Sun, 16 Jul 2017 10:30:45 -0400 DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 8FA9D611DE Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=okaya@codeaurora.org From: Sinan Kaya To: dmaengine@vger.kernel.org, timur@codeaurora.org Cc: linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Sinan Kaya , Andy Gross , David Brown , Vinod Koul , Dan Williams , linux-soc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/2] dmaengine: qcom_hidma: correct overriding message Date: Sun, 16 Jul 2017 10:30:37 -0400 Message-Id: <1500215438-30672-1-git-send-email-okaya@codeaurora.org> X-Mailer: git-send-email 1.9.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org A false overriding information is being presented during boot under this scenario. 1. First object checks for kernel command line value against zero. 2. It doesn't find it, it sets the command line variable to the value coming from ACPI/DT. 3. Second object is being probed. 4. Second object sees that the value of kernel command line override is non-zero, it prints an overriding message even though value matches ACPI/DT value. hidma-mgmt QCOM8060:03: overriding max-write-burst-bytes: 1024 Add an additional check to verify that kernel command line value is different from the ACPI/DT value. Signed-off-by: Sinan Kaya --- drivers/dma/qcom/hidma_mgmt.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/dma/qcom/hidma_mgmt.c b/drivers/dma/qcom/hidma_mgmt.c index 5a0991b..d51cd34 100644 --- a/drivers/dma/qcom/hidma_mgmt.c +++ b/drivers/dma/qcom/hidma_mgmt.c @@ -227,7 +227,8 @@ static int hidma_mgmt_probe(struct platform_device *pdev) goto out; } - if (max_write_request) { + if (max_write_request && + (max_write_request != mgmtdev->max_write_request)) { dev_info(&pdev->dev, "overriding max-write-burst-bytes: %d\n", max_write_request); mgmtdev->max_write_request = max_write_request; @@ -240,7 +241,8 @@ static int hidma_mgmt_probe(struct platform_device *pdev) dev_err(&pdev->dev, "max-read-burst-bytes missing\n"); goto out; } - if (max_read_request) { + if (max_read_request && + (max_read_request != mgmtdev->max_read_request)) { dev_info(&pdev->dev, "overriding max-read-burst-bytes: %d\n", max_read_request); mgmtdev->max_read_request = max_read_request; @@ -253,7 +255,8 @@ static int hidma_mgmt_probe(struct platform_device *pdev) dev_err(&pdev->dev, "max-write-transactions missing\n"); goto out; } - if (max_wr_xactions) { + if (max_wr_xactions && + (max_wr_xactions != mgmtdev->max_wr_xactions)) { dev_info(&pdev->dev, "overriding max-write-transactions: %d\n", max_wr_xactions); mgmtdev->max_wr_xactions = max_wr_xactions; @@ -266,7 +269,8 @@ static int hidma_mgmt_probe(struct platform_device *pdev) dev_err(&pdev->dev, "max-read-transactions missing\n"); goto out; } - if (max_rd_xactions) { + if (max_rd_xactions && + (max_rd_xactions != mgmtdev->max_rd_xactions)) { dev_info(&pdev->dev, "overriding max-read-transactions: %d\n", max_rd_xactions); mgmtdev->max_rd_xactions = max_rd_xactions; -- 1.9.1