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 688AA321F24; Mon, 18 Aug 2025 13:29:48 +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=1755523789; cv=none; b=gBRVAGGO58am2yOZ5cFPDlk6LlndS4leD2IuenCZcTPoZy3KWr/1ugnHYUjJAvtOCB8ja6RTTU1c/CvBg/0r6yQVr5O4nyIYQvoKxTl5sRGTz/o8jwUITfY/oZvTI+ntXjdmiBwYRtMOloYyiajCDVoO9juLTFuqVpGqndmhIDY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755523789; c=relaxed/simple; bh=UfH5Ew04ZOiF9eM+VVvyIC2ckBnMqjU31tESCHyDuuw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Y+PCu8h4Oc2hFLRW9ga1Ihtt+jNnGcvwTbiL1Qxo4kpkhgj1jRxAviTU+u85+uHX105JGrQ8s5iYwWybIbUur4KMDKw0XERpX8Dcm7gzL4pNpPtquWf4kNS+1kzmaVrlQbbU9qUtVRfFeCLmHIo9i8ShI4iAuSZTH44WovVkXgE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=D38isLaH; 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="D38isLaH" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5CD52C4CEEB; Mon, 18 Aug 2025 13:29:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1755523788; bh=UfH5Ew04ZOiF9eM+VVvyIC2ckBnMqjU31tESCHyDuuw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=D38isLaHL9SXxjo8XJeN2QDFWvlBBPOZ0n2EludAAIl/jwVSFRhDbNqZrtp+DkJq2 q3GwHWntZLxiG0BhPrb8Erb1TXEN/yphEz37SIY1zsO8ZXvZ5SkrHQ8uRR6EMLpQXD wgCAV0cxl7xamYEvxtokTZfNsrM3jLmGiIi/4VhE= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Robin Murphy , Leo Yan , Will Deacon , Sasha Levin Subject: [PATCH 6.15 256/515] perf/arm: Add missing .suppress_bind_attrs Date: Mon, 18 Aug 2025 14:44:02 +0200 Message-ID: <20250818124508.269490141@linuxfoundation.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250818124458.334548733@linuxfoundation.org> References: <20250818124458.334548733@linuxfoundation.org> User-Agent: quilt/0.68 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 6.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Robin Murphy [ Upstream commit 860a831de138a7ad6bc86019adaf10eb84c02655 ] PMU drivers should set .suppress_bind_attrs so that userspace is denied the opportunity to pull the driver out from underneath an in-use PMU (with predictably unpleasant consequences). Somehow both the CMN and NI drivers have managed to miss this; put that right. Signed-off-by: Robin Murphy Reviewed-by: Leo Yan Link: https://lore.kernel.org/r/acd48c341b33b96804a3969ee00b355d40c546e2.1751465293.git.robin.murphy@arm.com Signed-off-by: Will Deacon Signed-off-by: Sasha Levin --- drivers/perf/arm-cmn.c | 1 + drivers/perf/arm-ni.c | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/perf/arm-cmn.c b/drivers/perf/arm-cmn.c index 403850b1040d..e4bf181842fa 100644 --- a/drivers/perf/arm-cmn.c +++ b/drivers/perf/arm-cmn.c @@ -2662,6 +2662,7 @@ static struct platform_driver arm_cmn_driver = { .name = "arm-cmn", .of_match_table = of_match_ptr(arm_cmn_of_match), .acpi_match_table = ACPI_PTR(arm_cmn_acpi_match), + .suppress_bind_attrs = true, }, .probe = arm_cmn_probe, .remove = arm_cmn_remove, diff --git a/drivers/perf/arm-ni.c b/drivers/perf/arm-ni.c index 9396d243415f..c30a67fe2ae3 100644 --- a/drivers/perf/arm-ni.c +++ b/drivers/perf/arm-ni.c @@ -709,6 +709,7 @@ static struct platform_driver arm_ni_driver = { .name = "arm-ni", .of_match_table = of_match_ptr(arm_ni_of_match), .acpi_match_table = ACPI_PTR(arm_ni_acpi_match), + .suppress_bind_attrs = true, }, .probe = arm_ni_probe, .remove = arm_ni_remove, -- 2.39.5