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[2620:137:e000::1:20]) by mx.google.com with ESMTP id c10-20020a056830314a00b00616a215b551si2278940ots.18.2022.07.14.22.02.00; Thu, 14 Jul 2022 22:02:14 -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; dkim=pass header.i=@linuxfoundation.org header.s=korg header.b=Kxxg6dz9; 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=pass (p=NONE sp=NONE dis=NONE) header.from=linuxfoundation.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229897AbiGOFAo (ORCPT + 99 others); Fri, 15 Jul 2022 01:00:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41040 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229706AbiGOFAn (ORCPT ); Fri, 15 Jul 2022 01:00:43 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E192378581; Thu, 14 Jul 2022 22:00:41 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 77AF462246; Fri, 15 Jul 2022 05:00:41 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4C0E5C3411E; Fri, 15 Jul 2022 05:00:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1657861240; bh=Hek494Yetd3XN90he4BxOJbpQ2dkKLCIYiZNf3+pfA0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Kxxg6dz9/3aBwvkXZ/oAaWLb6NKzJXAis2DXFBUvPhL2zy1R85keS7nHBElPKZbtM O65XQ6pyPng/miykZf3kmYGUkxWYT8HnUnS0tJoIRm/iNm3C7rsel2zNh+gt5VLHIc gDGof+fdyvGyLtLP/cD6fWSDs0clD/lSbI+7NUIg= Date: Fri, 15 Jul 2022 07:00:38 +0200 From: Greg KH To: Benjamin Tissoires Cc: Jiri Kosina , Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Martin KaFai Lau , Song Liu , Yonghong Song , John Fastabend , KP Singh , Shuah Khan , Dave Marchevsky , Joe Stringer , Jonathan Corbet , Tero Kristo , linux-kernel@vger.kernel.org, linux-input@vger.kernel.org, netdev@vger.kernel.org, bpf@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-doc@vger.kernel.org Subject: Re: [PATCH bpf-next v6 09/23] HID: core: store the unique system identifier in hid_device Message-ID: References: <20220712145850.599666-1-benjamin.tissoires@redhat.com> <20220712145850.599666-10-benjamin.tissoires@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220712145850.599666-10-benjamin.tissoires@redhat.com> X-Spam-Status: No, score=-7.7 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham 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: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jul 12, 2022 at 04:58:36PM +0200, Benjamin Tissoires wrote: > This unique identifier is currently used only for ensuring uniqueness in > sysfs. However, this could be handful for userspace to refer to a specific > hid_device by this id. > > 2 use cases are in my mind: LEDs (and their naming convention), and > HID-BPF. > > Signed-off-by: Benjamin Tissoires > Reviewed-by: Greg Kroah-Hartman