From patchwork Fri Nov 6 00:34:23 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bhaumik Bhatt X-Patchwork-Id: 11885577 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 54E606A2 for ; Fri, 6 Nov 2020 00:36:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2913C20782 for ; Fri, 6 Nov 2020 00:36:09 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="DO/XwO9i" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732940AbgKFAgH (ORCPT ); Thu, 5 Nov 2020 19:36:07 -0500 Received: from z5.mailgun.us ([104.130.96.5]:35968 "EHLO z5.mailgun.us" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732914AbgKFAgH (ORCPT ); Thu, 5 Nov 2020 19:36:07 -0500 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1604622966; h=Message-Id: Date: Subject: Cc: To: From: Sender; bh=5fSP9DGFmy4a1RHdL6fQ6JMKD/ca1zSQadjTIA+5pME=; b=DO/XwO9izqCOm82/n9/VuW9UZC5hzR4EoXUP22bILVUqvuHWtRo3/AMFficuk72qgQ7t47+G r/Lu8snpnx0A3bnUHfzr0O+yfUeZwnZp+J0wtoj5fzwIEBXK0pkTCkf81X0Avby1/P3TwrIl hixRQjNSmGGvYNtV8rmInOf1Nh0= X-Mailgun-Sending-Ip: 104.130.96.5 X-Mailgun-Sid: WyI1MzIzYiIsICJsaW51eC1hcm0tbXNtQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n06.prod.us-east-1.postgun.com with SMTP id 5fa49a1e903b44cb0e87b5ed (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Fri, 06 Nov 2020 00:34:38 GMT Sender: bbhatt=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 67787C433C9; Fri, 6 Nov 2020 00:34:37 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-caf-mail-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=2.0 tests=ALL_TRUSTED,BAYES_00,SPF_FAIL autolearn=no autolearn_force=no version=3.4.0 Received: from malabar-linux.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: bbhatt) by smtp.codeaurora.org (Postfix) with ESMTPSA id 6ECE9C433C6; Fri, 6 Nov 2020 00:34:36 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 6ECE9C433C6 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=bbhatt@codeaurora.org From: Bhaumik Bhatt To: manivannan.sadhasivam@linaro.org Cc: linux-arm-msm@vger.kernel.org, hemantk@codeaurora.org, jhugo@codeaurora.org, linux-kernel@vger.kernel.org, Bhaumik Bhatt Subject: [PATCH v1 0/6] Minor bug fixes and clean-up for MHI host driver Date: Thu, 5 Nov 2020 16:34:23 -0800 Message-Id: <1604622869-40212-1-git-send-email-bbhatt@codeaurora.org> X-Mailer: git-send-email 2.7.4 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org This patch series serves to clean up the MHI host driver by removing an unnecessary counter and an unused function. It also renames a function to make it clearly worded. There is currently no user of this exported function which makes it is safe to do so now. Bug fixes include adding a missing EXPORT_SYMBOL_GPL to a function, and adding a return value check to bail out of RDDM download in kernel panic path. An outlier among the group exports the mhi_get_exec_env() API for use by controller drivers, in case they need to determine behavior on the basis of the current execution environment. This set of patches was tested on arm64. Bhaumik Bhatt (6): bus: mhi: core: Remove unnecessary counter from mhi_firmware_copy() bus: mhi: core: Add missing EXPORT_SYMBOL for mhi_get_mhi_state() bus: mhi: core: Expose mhi_get_exec_env() API for controllers bus: mhi: core: Remove unused mhi_fw_load_worker() declaration bus: mhi: core: Rename RDDM download function to use proper words bus: mhi: core: Skip RDDM download for unknown execution environment drivers/bus/mhi/core/boot.c | 13 ++++++++----- drivers/bus/mhi/core/internal.h | 1 - drivers/bus/mhi/core/main.c | 2 ++ include/linux/mhi.h | 12 +++++++++--- 4 files changed, 19 insertions(+), 9 deletions(-)