Message ID | 20230404134225.13408-18-Jonathan.Cameron@huawei.com |
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State | New |
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[2620:137:e000::1:20]) by mx.google.com with ESMTP id 202-20020a6301d3000000b004e018302ac3si10285204pgb.612.2023.04.04.07.12.23; Tue, 04 Apr 2023 07:12:55 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=huawei.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235250AbjDDNvH (ORCPT <rfc822;lkml4gm@gmail.com> + 99 others); Tue, 4 Apr 2023 09:51:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48894 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235245AbjDDNvF (ORCPT <rfc822;linux-kernel@vger.kernel.org>); Tue, 4 Apr 2023 09:51:05 -0400 Received: from frasgout.his.huawei.com (frasgout.his.huawei.com [185.176.79.56]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0492CFC; Tue, 4 Apr 2023 06:51:04 -0700 (PDT) Received: from lhrpeml500005.china.huawei.com (unknown [172.18.147.226]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4PrTdD2trDz6J78Y; Tue, 4 Apr 2023 21:49:04 +0800 (CST) Received: from SecurePC-101-06.china.huawei.com (10.122.247.231) by lhrpeml500005.china.huawei.com (7.191.163.240) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.23; Tue, 4 Apr 2023 14:51:00 +0100 From: Jonathan Cameron <Jonathan.Cameron@huawei.com> To: Mark Rutland <mark.rutland@arm.com>, Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@redhat.com>, Arnaldo Carvalho de Melo <acme@kernel.org>, Will Deacon <will@kernel.org>, <linux-kernel@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org>, <gregkh@linuxfoundation.org> CC: <linuxarm@huawei.com>, Dan Williams <dan.j.williams@intel.com>, Shaokun Zhang <zhangshaokun@hisilicon.com>, Yicong Yang <yangyicong@hisilicon.com>, Jiucheng Xu <jiucheng.xu@amlogic.com>, Khuong Dinh <khuong@os.amperecomputing.com>, Robert Richter <rric@kernel.org>, Atish Patra <atishp@atishpatra.org>, Anup Patel <anup@brainfault.org>, Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org>, Frank Li <Frank.li@nxp.com>, Shuai Xue <xueshuai@linux.alibaba.com>, Vineet Gupta <vgupta@kernel.org>, Shawn Guo <shawnguo@kernel.org>, Fenghua Yu <fenghua.yu@intel.com>, Dave Jiang <dave.jiang@intel.com>, Wu Hao <hao.wu@intel.com>, Tom Rix <trix@redhat.com>, <linux-fpga@vger.kernel.org>, Suzuki K Poulose <suzuki.poulose@arm.com>, Liang Kan <kan.liang@linux.intel.com> Subject: [PATCH 17/32] perf/arm_pmu: Assign parents for event_source devices Date: Tue, 4 Apr 2023 14:42:10 +0100 Message-ID: <20230404134225.13408-18-Jonathan.Cameron@huawei.com> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20230404134225.13408-1-Jonathan.Cameron@huawei.com> References: <20230404134225.13408-1-Jonathan.Cameron@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.122.247.231] X-ClientProxiedBy: lhrpeml500003.china.huawei.com (7.191.162.67) To lhrpeml500005.china.huawei.com (7.191.163.240) X-CFilter-Loop: Reflected X-Spam-Status: No, score=-2.3 required=5.0 tests=RCVD_IN_DNSWL_MED, RCVD_IN_MSPIKE_H2,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: <linux-kernel.vger.kernel.org> X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1762255254976717668?= X-GMAIL-MSGID: =?utf-8?q?1762255254976717668?= |
Series |
Add parents to struct pmu -> dev
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Commit Message
Jonathan Cameron
April 4, 2023, 1:42 p.m. UTC
Currently the PMU device appears directly under /sys/devices/
Only root busses should appear there, so instead assign the pmu->dev
parent to be the platform device.
Link: https://lore.kernel.org/linux-cxl/ZCLI9A40PJsyqAmq@kroah.com/
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
Note that the ACPI path for this driver has no obvious 'parent' to
use so I've left that for now. See armv8_pmu_driver_init() in
arch/arm64/kernel/perf_event.c Suggestions welcome!
---
drivers/perf/arm_pmu_platform.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/perf/arm_pmu_platform.c b/drivers/perf/arm_pmu_platform.c index 933b96e243b8..705ed45402ff 100644 --- a/drivers/perf/arm_pmu_platform.c +++ b/drivers/perf/arm_pmu_platform.c @@ -197,6 +197,7 @@ int arm_pmu_device_probe(struct platform_device *pdev, if (!pmu) return -ENOMEM; + pmu->pmu.parent = &pdev->dev; pmu->plat_device = pdev; ret = pmu_parse_irqs(pmu);