From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7CCE369951; Wed, 21 Feb 2024 13:40:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708522841; cv=none; b=R8hi9LYhswrJ2FumjvTO2ssQRl/Tsll/My1JIwWGyB5fuVR7iHbmUVLI8C2bwFJ6TbyUpvR6ynrkkPSoQB9/Uwx1GAdypaJqcLWaU/H/U28FKA9n8HpnxdTqL/ugz2HVJhtOOMKmDUk38GOZ0Hrfs/hoaq6Z1RL3IYkutp4ICAY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708522841; c=relaxed/simple; bh=wlC8N2C99kK96Dul8h93bPlDzDWHrNZ45LvNDJxOhKg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=HrYkCd6nL68kIPkrn5uqmqnNosqdTRSYLuayki+qsQD41I+x5ykNUxjdFKScaEgRFvHYqucIFQtI08O7Dub0iXOxLGAb5UD0iaCVGNbPfRbrfWEYe/RoIBjiGXlzhcaeYfIqj+XezuPf7a6ip3WwKkhfQTlLjwI2hX7NKgOUqdg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=0rdGzH3D; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="0rdGzH3D" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DFD17C433C7; Wed, 21 Feb 2024 13:40:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1708522841; bh=wlC8N2C99kK96Dul8h93bPlDzDWHrNZ45LvNDJxOhKg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=0rdGzH3D9Kfiy8lqRY6s1ti5bUH5/jtXrTqx+vk9Y6xU8SBHYCkS+irXqg7q8GCz7 XndaxkL4wiRdcf2isBCHcfkBwGBBRxZiQtqqkeoN43PCkPsFw1l4eZKkXbSHqBa1+f FcD48v1yNKEZUqMU4/vOGoCQ6/FF23AYORp+tUyU= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Thomas Richter , "Peter Zijlstra (Intel)" , Sasha Levin Subject: [PATCH 5.15 267/476] perf: Fix the nr_addr_filters fix Date: Wed, 21 Feb 2024 14:05:18 +0100 Message-ID: <20240221130017.718452195@linuxfoundation.org> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240221130007.738356493@linuxfoundation.org> References: <20240221130007.738356493@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Peter Zijlstra [ Upstream commit 388a1fb7da6aaa1970c7e2a7d7fcd983a87a8484 ] Thomas reported that commit 652ffc2104ec ("perf/core: Fix narrow startup race when creating the perf nr_addr_filters sysfs file") made the entire attribute group vanish, instead of only the nr_addr_filters attribute. Additionally a stray return. Insufficient coffee was involved with both writing and merging the patch. Fixes: 652ffc2104ec ("perf/core: Fix narrow startup race when creating the perf nr_addr_filters sysfs file") Reported-by: Thomas Richter Signed-off-by: Peter Zijlstra (Intel) Tested-by: Thomas Richter Link: https://lkml.kernel.org/r/20231122100756.GP8262@noisy.programming.kicks-ass.net Signed-off-by: Sasha Levin --- kernel/events/core.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/kernel/events/core.c b/kernel/events/core.c index 0e03afd82348..4e5a73c7db12 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -11229,12 +11229,10 @@ static umode_t pmu_dev_is_visible(struct kobject *kobj, struct attribute *a, int struct device *dev = kobj_to_dev(kobj); struct pmu *pmu = dev_get_drvdata(dev); - if (!pmu->nr_addr_filters) + if (n == 2 && !pmu->nr_addr_filters) return 0; return a->mode; - - return 0; } static struct attribute_group pmu_dev_attr_group = { -- 2.43.0