From patchwork Tue Aug 30 17:11:47 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Johnson X-Patchwork-Id: 601113 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1C744ECAAD8 for ; Tue, 30 Aug 2022 17:15:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229888AbiH3RPG (ORCPT ); Tue, 30 Aug 2022 13:15:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54386 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229954AbiH3RPD (ORCPT ); Tue, 30 Aug 2022 13:15:03 -0400 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5621A2A97E for ; Tue, 30 Aug 2022 10:15:00 -0700 (PDT) Received: from pps.filterd (m0279862.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 27UFwrDC004631; Tue, 30 Aug 2022 17:14:52 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=qcppdkim1; bh=/c9e25OSMWSKWndPl93l7GyBPk9VSDhjwk08z69wqZ4=; b=TuPR6PHdW+ePWxl7PHEg+rdk+ixRgZfvcfUDXPGkBN2DGOmOUx6HAZ0AoKENP7bQHfGG OS3WfWeWC7sTvQxMuhb6WzCHol+8ciZNb7GQBe+qhDQUog6OmPK+aQkD2j2CFkugg90k YVKJPK8HOn3iGLYSLK4d7BMgU4k1Ujfgi2pr47fwQQcURuWxbjok515wuDOXMuBWQjQ0 N802c35B2gE4Xw02VAYSnV27I+32H4clqrzn+u7KiEDm9+s1A6yjB+j7heplBF6tbahI icbKk7gugLsP6sqvqsqvFws60DR3Lw9cjs39tqnty8ZS1Y7VgrltMCQ1E5I5P/ytMQff 4A== Received: from nalasppmta03.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3j9m2t0hhk-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 30 Aug 2022 17:14:52 +0000 Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA03.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 27UHEpjG028205 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 30 Aug 2022 17:14:51 GMT Received: from quicinc.com (10.49.16.6) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.29; Tue, 30 Aug 2022 10:14:51 -0700 From: Jeff Johnson To: Manivannan Sadhasivam , Hemant Kumar CC: , , Jeff Johnson Subject: [PATCH v5] bus: mhi: host: make mhi_controller_config::event_cfg const Date: Tue, 30 Aug 2022 10:11:47 -0700 Message-ID: <20220830171147.24338-1-quic_jjohnson@quicinc.com> X-Mailer: git-send-email 2.37.0 In-Reply-To: <20220829205112.12036-1-quic_jjohnson@quicinc.com> References: <20220829205112.12036-1-quic_jjohnson@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] X-ClientProxiedBy: nalasex01c.na.qualcomm.com (10.47.97.35) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: bcRcxmAYqz7ca25BMjPDKsFAe9DLUHhe X-Proofpoint-ORIG-GUID: bcRcxmAYqz7ca25BMjPDKsFAe9DLUHhe X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.895,Hydra:6.0.517,FMLib:17.11.122.1 definitions=2022-08-30_10,2022-08-30_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 phishscore=0 adultscore=0 mlxlogscore=999 bulkscore=0 suspectscore=0 mlxscore=0 clxscore=1015 spamscore=0 malwarescore=0 impostorscore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2207270000 definitions=main-2208300079 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Currently the event_cfg pointer in struct mhi_controller_config is not defined as a const pointer. This prevents clients from registering a read-only configuration unless they use a typecast. Since the event_cfg should not be modified once registered, add the const qualifier to event_cfg. This is aligned with the definition of ch_cfg. Signed-off-by: Jeff Johnson Reviewed-by: Manivannan Sadhasivam --- v5: corrected mhi_foxconn_sdx55_events[] v4: updated subject, rebased to v6.0-rc3 v3: added pci_generic.c change v2: added S-O-B drivers/bus/mhi/host/pci_generic.c | 14 +++++++------- include/linux/mhi.h | 2 +- 2 files changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/bus/mhi/host/pci_generic.c b/drivers/bus/mhi/host/pci_generic.c index 9e545f2a5a26..0db437ac3ba4 100644 --- a/drivers/bus/mhi/host/pci_generic.c +++ b/drivers/bus/mhi/host/pci_generic.c @@ -238,7 +238,7 @@ static const struct mhi_channel_config modem_qcom_v1_mhi_channels[] = { MHI_CHANNEL_CONFIG_HW_DL(101, "IP_HW0", 128, 3), }; -static struct mhi_event_config modem_qcom_v1_mhi_events[] = { +static const struct mhi_event_config modem_qcom_v1_mhi_events[] = { /* first ring is control+data ring */ MHI_EVENT_CONFIG_CTRL(0, 64), /* DIAG dedicated event ring */ @@ -305,7 +305,7 @@ static const struct mhi_channel_config mhi_quectel_em1xx_channels[] = { MHI_CHANNEL_CONFIG_HW_DL(101, "IP_HW0_MBIM", 128, 3), }; -static struct mhi_event_config mhi_quectel_em1xx_events[] = { +static const struct mhi_event_config mhi_quectel_em1xx_events[] = { MHI_EVENT_CONFIG_CTRL(0, 128), MHI_EVENT_CONFIG_DATA(1, 128), MHI_EVENT_CONFIG_HW_DATA(2, 1024, 100), @@ -344,7 +344,7 @@ static const struct mhi_channel_config mhi_foxconn_sdx55_channels[] = { MHI_CHANNEL_CONFIG_HW_DL(101, "IP_HW0_MBIM", 128, 3), }; -static struct mhi_event_config mhi_foxconn_sdx55_events[] = { +static const struct mhi_event_config mhi_foxconn_sdx55_events[] = { MHI_EVENT_CONFIG_CTRL(0, 128), MHI_EVENT_CONFIG_DATA(1, 128), MHI_EVENT_CONFIG_HW_DATA(2, 1024, 100), @@ -391,7 +391,7 @@ static const struct mhi_channel_config mhi_mv3x_channels[] = { MHI_CHANNEL_CONFIG_HW_DL(101, "IP_HW0_MBIM", 512, 3), }; -static struct mhi_event_config mhi_mv3x_events[] = { +static const struct mhi_event_config mhi_mv3x_events[] = { MHI_EVENT_CONFIG_CTRL(0, 256), MHI_EVENT_CONFIG_DATA(1, 256), MHI_EVENT_CONFIG_HW_DATA(2, 1024, 100), @@ -438,7 +438,7 @@ static const struct mhi_channel_config mhi_sierra_em919x_channels[] = { MHI_CHANNEL_CONFIG_HW_DL(101, "IP_HW0", 512, 2), }; -static struct mhi_event_config modem_sierra_em919x_mhi_events[] = { +static const struct mhi_event_config modem_sierra_em919x_mhi_events[] = { /* first ring is control+data and DIAG ring */ MHI_EVENT_CONFIG_CTRL(0, 2048), /* Hardware channels request dedicated hardware event rings */ @@ -472,7 +472,7 @@ static const struct mhi_channel_config mhi_telit_fn980_hw_v1_channels[] = { MHI_CHANNEL_CONFIG_HW_DL(101, "IP_HW0", 128, 2), }; -static struct mhi_event_config mhi_telit_fn980_hw_v1_events[] = { +static const struct mhi_event_config mhi_telit_fn980_hw_v1_events[] = { MHI_EVENT_CONFIG_CTRL(0, 128), MHI_EVENT_CONFIG_HW_DATA(1, 1024, 100), MHI_EVENT_CONFIG_HW_DATA(2, 2048, 101) @@ -511,7 +511,7 @@ static const struct mhi_channel_config mhi_telit_fn990_channels[] = { MHI_CHANNEL_CONFIG_HW_DL(101, "IP_HW0_MBIM", 128, 3), }; -static struct mhi_event_config mhi_telit_fn990_events[] = { +static const struct mhi_event_config mhi_telit_fn990_events[] = { MHI_EVENT_CONFIG_CTRL(0, 128), MHI_EVENT_CONFIG_DATA(1, 128), MHI_EVENT_CONFIG_HW_DATA(2, 1024, 100), diff --git a/include/linux/mhi.h b/include/linux/mhi.h index a5441ad33c74..ada2f18af4d6 100644 --- a/include/linux/mhi.h +++ b/include/linux/mhi.h @@ -281,7 +281,7 @@ struct mhi_controller_config { u32 num_channels; const struct mhi_channel_config *ch_cfg; u32 num_events; - struct mhi_event_config *event_cfg; + const struct mhi_event_config *event_cfg; bool use_bounce_buf; bool m2_no_db; };