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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 3015CCAC5B1 for ; Thu, 25 Sep 2025 15:05:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=EvtiP8cp8BhABUlmDna8Y0Y1St2GWHNIfZ0PtAqOnds=; b=v0R8S9hFH82O54LyPuxWpcdy7g S6ARCsS+Nj8vA720ieIXfiK0Zo/JbyjXIgRDfnSKYRZJse6cThkVcbcXVH3y60Z7j97UDTZP2ZvAM tlXhHgQ/F4gyaBua7tNFhQl+Orr/vOfCDTgEkTqpRSZIshV2Uhj8AxVgRqwvonM2HAZ8dURvPtFgE IFyqYBUkInz1eF1XvTyZ2w8Z+ABzW/h9vzyZge7RVhaTuLScInGNVU8h61UaZVFWgrOJ7cxjCPBF6 BNzid2iT/ReKxTrsV7PhYx6sqtvbWcbA5/3++Y9joZlaw+WIgpd9tWATIq68zuEjWztQKxA0FRA09 rdtASOVQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1v1nXd-0000000AQ5c-1uA6; Thu, 25 Sep 2025 15:05:53 +0000 Received: from out-178.mta1.migadu.com ([2001:41d0:203:375::b2]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1v1nXb-0000000AOY8-3Kwj for linux-arm-kernel@lists.infradead.org; Thu, 25 Sep 2025 15:05:53 +0000 X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1758812638; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=EvtiP8cp8BhABUlmDna8Y0Y1St2GWHNIfZ0PtAqOnds=; b=qc+APSbfWfm1HkxNcTUxP7A7opt9wXkSXngWpYL2pyaw4uSvSeu6Qe+/07OQwHr20jSsbp 0wDu6H/3V2x79Fjv607xpQZtCHzXNCdQe+UEqVidFbzQeWUzeLIXXX1S1FbL4faWTgE2j5 zuHkCL88AGRahruz20aL/3tXpF7fbn0= From: Sean Anderson To: Suzuki K Poulose , coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org Cc: Leo Yan , Yeoreum Yun , Linu Cherian , Mike Leach , linux-kernel@vger.kernel.org, Alexander Shishkin , James Clark , Sean Anderson Subject: [PATCH v5 0/3] coresight: Fix possible deadlock in coresight_panic_cb Date: Thu, 25 Sep 2025 11:03:39 -0400 Message-Id: <20250925150342.1845615-1-sean.anderson@linux.dev> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250925_080551_974152_CC094864 X-CRM114-Status: UNSURE ( 6.90 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This time with the notifier in csdev. Changes in v5: - Split reordering of coresight_device_release into a separate patch - Check csdev mode before calling sync() Changes in v4: - Fix fwnode leak in coresight_register error path - Move the panic notifier into csdev and restore the panic sync API Changes in v3: - Rewrite patch to remove the panic sync API entirely Changes in v2: - Add a comment describing csdev_lock/list - Consolidate list removal in coresight_device_release Sean Anderson (3): coresight: Fix fwnode leak in coresight_register error path coresight: Reorder coresight_device_release to match coresight_register coresight: Fix possible deadlock in coresight_panic_cb drivers/hwtracing/coresight/coresight-core.c | 71 ++++++++------------ include/linux/coresight.h | 2 + 2 files changed, 30 insertions(+), 43 deletions(-) -- 2.35.1.1320.gc452695387.dirty