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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 04D0CC7EE2C for ; Sun, 28 May 2023 19:24:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230032AbjE1TYk (ORCPT ); Sun, 28 May 2023 15:24:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41636 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230030AbjE1TYj (ORCPT ); Sun, 28 May 2023 15:24:39 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 472B5A3 for ; Sun, 28 May 2023 12:24:38 -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 CCB0061BBB for ; Sun, 28 May 2023 19:24:37 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E96B3C433EF; Sun, 28 May 2023 19:24:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1685301877; bh=lTy7IDSLgtTrZBotiWdMEJxRjafNuUN+OW8PH2fbAf0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=aq4DwWmvzqBQhL4uruXnjgjnbnSx2eCIefIHptyBczmEoOLv1D/Kooq3B/5aKf0JL 2GsSOiNUvCt1Lwet0OAg6VDH3hWbe1oFHQo/IVPgi3OoPTCvY3rt/23+cR5NYQYvez eXON2Sy5tuV58KE9QjN5WQNAEqDWVhhzmEVFZeaQ= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Bastien Nocera , Benjamin Tissoires , Sasha Levin Subject: [PATCH 5.4 043/161] HID: logitech-hidpp: Reconcile USB and Unifying serials Date: Sun, 28 May 2023 20:09:27 +0100 Message-Id: <20230528190838.586448783@linuxfoundation.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230528190837.051205996@linuxfoundation.org> References: <20230528190837.051205996@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Bastien Nocera [ Upstream commit 5b3691d15e04b6d5a32c915577b8dbc5cfb56382 ] Now that USB HID++ devices can gather a serial number that matches the one that would be gathered when connected through a Unifying receiver, remove the last difference by dropping the product ID as devices usually have different product IDs when connected through USB or Unifying. For example, on the serials on a G903 wired/wireless mouse: - Unifying before patch: 4067-e8-ce-cd-45 - USB before patch: c086-e8-ce-cd-45 - Unifying and USB after patch: e8-ce-cd-45 Signed-off-by: Bastien Nocera Link: https://lore.kernel.org/r/20230302130117.3975-2-hadess@hadess.net Signed-off-by: Benjamin Tissoires Signed-off-by: Sasha Levin --- drivers/hid/hid-logitech-hidpp.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c index 2fd64361884cf..b8558292801ec 100644 --- a/drivers/hid/hid-logitech-hidpp.c +++ b/drivers/hid/hid-logitech-hidpp.c @@ -809,8 +809,7 @@ static int hidpp_unifying_init(struct hidpp_device *hidpp) if (ret) return ret; - snprintf(hdev->uniq, sizeof(hdev->uniq), "%04x-%4phD", - hdev->product, &serial); + snprintf(hdev->uniq, sizeof(hdev->uniq), "%4phD", &serial); dbg_hid("HID++ Unifying: Got serial: %s\n", hdev->uniq); name = hidpp_unifying_get_name(hidpp); @@ -945,8 +944,7 @@ static int hidpp_serial_init(struct hidpp_device *hidpp) if (ret) return ret; - snprintf(hdev->uniq, sizeof(hdev->uniq), "%04x-%4phD", - hdev->product, &serial); + snprintf(hdev->uniq, sizeof(hdev->uniq), "%4phD", &serial); dbg_hid("HID++ DeviceInformation: Got serial: %s\n", hdev->uniq); return 0; -- 2.39.2