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 18ECA33CEB0; Tue, 26 Aug 2025 13:55:56 +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=1756216557; cv=none; b=EjC8V3XVyBR8FUHcr/Hf+/6jJ8SjvQ2S5A00WS6hCdB3QSwJI7l6yEvo0SdAKXDnbkD6XbEkHbe2FcvDxWVw0B0y4kvWkDIUbh2UIysuR2alcPCCjFH6Vnmwf4gzFSxU4Ox/xleG4angTAMUW+kLl5sJNKb5fe+n19CwvaUojUY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756216557; c=relaxed/simple; bh=B3OZEYpX773bZTkwd5jj40c5DOHtA9sWqcne/JqMlRE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=q3I0Nqsp++WoOlMcEVL+8jcxCtHLyG7Gz1Jp3/Iu9GMotoAmvUP8+liYHIIG3Wfrqj8pRxrFiL5dSv1WGZmPU4uAB8Nk0gBTsJrrZcT0kbJpj/QN+oasqSjt3GH8mcJMJQV719eZUFlkACT9f3mwWeg9+JSYeKkdwTqmWfHYSII= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=YWk8ZWuE; 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="YWk8ZWuE" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5A27FC4CEF1; Tue, 26 Aug 2025 13:55:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1756216556; bh=B3OZEYpX773bZTkwd5jj40c5DOHtA9sWqcne/JqMlRE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YWk8ZWuEgZB2flrtP3Rm9wwNy9NJrPJVO3+EFPg+yDC8jyU2huZs0RRWiKiIoQyEy bcMFB/TYmanSzeVDVUjgYqmBRLXFAaWubp4MndHE3f536RPxoPCbfJfPxLVi+JC0di /+3wyGf6MXMWjSSDzPO02okqGfCKZrywPdGzOJtY= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Aditya Garg , Jiri Kosina Subject: [PATCH 5.15 455/644] HID: magicmouse: avoid setting up battery timer when not needed Date: Tue, 26 Aug 2025 13:09:06 +0200 Message-ID: <20250826110957.751970544@linuxfoundation.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250826110946.507083938@linuxfoundation.org> References: <20250826110946.507083938@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org 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: Aditya Garg commit 9bdc30e35cbc1aa78ccf01040354209f1e11ca22 upstream. Currently, the battery timer is set up for all devices using hid-magicmouse, irrespective of whether they actually need it or not. The current implementation requires the battery timer for Magic Mouse 2 and Magic Trackpad 2 when connected via USB only. Add checks to ensure that the battery timer is only set up when they are connected via USB. Fixes: 0b91b4e4dae6 ("HID: magicmouse: Report battery level over USB") Cc: stable@vger.kernel.org Signed-off-by: Aditya Garg Signed-off-by: Jiri Kosina Signed-off-by: Greg Kroah-Hartman --- drivers/hid/hid-magicmouse.c | 53 ++++++++++++++++++++++++++++++------------- 1 file changed, 37 insertions(+), 16 deletions(-) --- a/drivers/hid/hid-magicmouse.c +++ b/drivers/hid/hid-magicmouse.c @@ -741,15 +741,29 @@ static void magicmouse_enable_mt_work(st hid_err(msc->hdev, "unable to request touch data (%d)\n", ret); } +static bool is_usb_magicmouse2(__u32 vendor, __u32 product) +{ + if (vendor != USB_VENDOR_ID_APPLE) + return false; + return product == USB_DEVICE_ID_APPLE_MAGICMOUSE2; +} + +static bool is_usb_magictrackpad2(__u32 vendor, __u32 product) +{ + if (vendor != USB_VENDOR_ID_APPLE) + return false; + return product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2; +} + static int magicmouse_fetch_battery(struct hid_device *hdev) { #ifdef CONFIG_HID_BATTERY_STRENGTH struct hid_report_enum *report_enum; struct hid_report *report; - if (!hdev->battery || hdev->vendor != USB_VENDOR_ID_APPLE || - (hdev->product != USB_DEVICE_ID_APPLE_MAGICMOUSE2 && - hdev->product != USB_DEVICE_ID_APPLE_MAGICTRACKPAD2)) + if (!hdev->battery || + (!is_usb_magicmouse2(hdev->vendor, hdev->product) && + !is_usb_magictrackpad2(hdev->vendor, hdev->product))) return -1; report_enum = &hdev->report_enum[hdev->battery_report_type]; @@ -811,14 +825,17 @@ static int magicmouse_probe(struct hid_d return ret; } - timer_setup(&msc->battery_timer, magicmouse_battery_timer_tick, 0); - mod_timer(&msc->battery_timer, - jiffies + msecs_to_jiffies(USB_BATTERY_TIMEOUT_MS)); - magicmouse_fetch_battery(hdev); - - if (id->vendor == USB_VENDOR_ID_APPLE && - (id->product == USB_DEVICE_ID_APPLE_MAGICMOUSE2 || - (id->product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2 && hdev->type != HID_TYPE_USBMOUSE))) + if (is_usb_magicmouse2(id->vendor, id->product) || + is_usb_magictrackpad2(id->vendor, id->product)) { + timer_setup(&msc->battery_timer, magicmouse_battery_timer_tick, 0); + mod_timer(&msc->battery_timer, + jiffies + msecs_to_jiffies(USB_BATTERY_TIMEOUT_MS)); + magicmouse_fetch_battery(hdev); + } + + if (is_usb_magicmouse2(id->vendor, id->product) || + (is_usb_magictrackpad2(id->vendor, id->product) && + hdev->type != HID_TYPE_USBMOUSE)) return 0; if (!msc->input) { @@ -873,7 +890,10 @@ static int magicmouse_probe(struct hid_d return 0; err_stop_hw: - del_timer_sync(&msc->battery_timer); + if (is_usb_magicmouse2(id->vendor, id->product) || + is_usb_magictrackpad2(id->vendor, id->product)) + del_timer_sync(&msc->battery_timer); + hid_hw_stop(hdev); return ret; } @@ -884,7 +904,9 @@ static void magicmouse_remove(struct hid if (msc) { cancel_delayed_work_sync(&msc->work); - del_timer_sync(&msc->battery_timer); + if (is_usb_magicmouse2(hdev->vendor, hdev->product) || + is_usb_magictrackpad2(hdev->vendor, hdev->product)) + del_timer_sync(&msc->battery_timer); } hid_hw_stop(hdev); @@ -901,9 +923,8 @@ static __u8 *magicmouse_report_fixup(str * 0x05, 0x01, // Usage Page (Generic Desktop) 0 * 0x09, 0x02, // Usage (Mouse) 2 */ - if (hdev->vendor == USB_VENDOR_ID_APPLE && - (hdev->product == USB_DEVICE_ID_APPLE_MAGICMOUSE2 || - hdev->product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) && + if ((is_usb_magicmouse2(hdev->vendor, hdev->product) || + is_usb_magictrackpad2(hdev->vendor, hdev->product)) && *rsize == 83 && rdesc[46] == 0x84 && rdesc[58] == 0x85) { hid_info(hdev, "fixing up magicmouse battery report descriptor\n");