From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S936849AbdAKI7q (ORCPT ); Wed, 11 Jan 2017 03:59:46 -0500 Received: from mail-lf0-f68.google.com ([209.85.215.68]:34294 "EHLO mail-lf0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S936797AbdAKI7n (ORCPT ); Wed, 11 Jan 2017 03:59:43 -0500 From: =?UTF-8?q?Micha=C5=82=20K=C4=99pie=C5=84?= To: Jonathan Woithe , Darren Hart Cc: platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/4] platform/x86: fujitsu-laptop: decrease indentation in acpi_fujitsu_hotkey_notify() Date: Wed, 11 Jan 2017 09:59:30 +0100 Message-Id: <20170111085933.2486-2-kernel@kempniu.pl> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170111085933.2486-1-kernel@kempniu.pl> References: <20170111085933.2486-1-kernel@kempniu.pl> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org acpi_fujitsu_hotkey_notify() is pretty deeply nested, which hurts readability. Strip off one level of indentation by returning early when the event code supplied as argument is not ACPI_FUJITSU_NOTIFY_CODE1. Signed-off-by: Michał Kępień --- Changes introduced by this patch are best viewed when whitespace changes are ignored. drivers/platform/x86/fujitsu-laptop.c | 152 +++++++++++++++++----------------- 1 file changed, 75 insertions(+), 77 deletions(-) diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c index b725a907a91f..c2022f8af51b 100644 --- a/drivers/platform/x86/fujitsu-laptop.c +++ b/drivers/platform/x86/fujitsu-laptop.c @@ -1039,98 +1039,96 @@ static void acpi_fujitsu_hotkey_notify(struct acpi_device *device, u32 event) input = fujitsu_hotkey->input; + if (event != ACPI_FUJITSU_NOTIFY_CODE1) { + keycode = KEY_UNKNOWN; + vdbg_printk(FUJLAPTOP_DBG_WARN, + "Unsupported event [0x%x]\n", event); + input_report_key(input, keycode, 1); + input_sync(input); + input_report_key(input, keycode, 0); + input_sync(input); + return; + } + if (fujitsu_hotkey->rfkill_supported) fujitsu_hotkey->rfkill_state = call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0); - switch (event) { - case ACPI_FUJITSU_NOTIFY_CODE1: - i = 0; - while ((irb = - call_fext_func(FUNC_BUTTONS, 0x1, 0x0, 0x0)) != 0 - && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE) { - switch (irb & 0x4ff) { - case KEY1_CODE: - keycode = fujitsu->keycode1; - break; - case KEY2_CODE: - keycode = fujitsu->keycode2; - break; - case KEY3_CODE: - keycode = fujitsu->keycode3; - break; - case KEY4_CODE: - keycode = fujitsu->keycode4; - break; - case KEY5_CODE: - keycode = fujitsu->keycode5; - break; - case 0: - keycode = 0; - break; - default: + i = 0; + while ((irb = + call_fext_func(FUNC_BUTTONS, 0x1, 0x0, 0x0)) != 0 + && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE) { + switch (irb & 0x4ff) { + case KEY1_CODE: + keycode = fujitsu->keycode1; + break; + case KEY2_CODE: + keycode = fujitsu->keycode2; + break; + case KEY3_CODE: + keycode = fujitsu->keycode3; + break; + case KEY4_CODE: + keycode = fujitsu->keycode4; + break; + case KEY5_CODE: + keycode = fujitsu->keycode5; + break; + case 0: + keycode = 0; + break; + default: + vdbg_printk(FUJLAPTOP_DBG_WARN, + "Unknown GIRB result [%x]\n", irb); + keycode = -1; + break; + } + if (keycode > 0) { + vdbg_printk(FUJLAPTOP_DBG_TRACE, + "Push keycode into ringbuffer [%d]\n", + keycode); + status = kfifo_in_locked(&fujitsu_hotkey->fifo, + (unsigned char *)&keycode, + sizeof(keycode), + &fujitsu_hotkey->fifo_lock); + if (status != sizeof(keycode)) { vdbg_printk(FUJLAPTOP_DBG_WARN, - "Unknown GIRB result [%x]\n", irb); - keycode = -1; - break; + "Could not push keycode [0x%x]\n", + keycode); + } else { + input_report_key(input, keycode, 1); + input_sync(input); } - if (keycode > 0) { + } else if (keycode == 0) { + while ((status = + kfifo_out_locked( + &fujitsu_hotkey->fifo, + (unsigned char *) &keycode_r, + sizeof(keycode_r), + &fujitsu_hotkey->fifo_lock)) + == sizeof(keycode_r)) { + input_report_key(input, keycode_r, 0); + input_sync(input); vdbg_printk(FUJLAPTOP_DBG_TRACE, - "Push keycode into ringbuffer [%d]\n", - keycode); - status = kfifo_in_locked(&fujitsu_hotkey->fifo, - (unsigned char *)&keycode, - sizeof(keycode), - &fujitsu_hotkey->fifo_lock); - if (status != sizeof(keycode)) { - vdbg_printk(FUJLAPTOP_DBG_WARN, - "Could not push keycode [0x%x]\n", - keycode); - } else { - input_report_key(input, keycode, 1); - input_sync(input); - } - } else if (keycode == 0) { - while ((status = - kfifo_out_locked( - &fujitsu_hotkey->fifo, - (unsigned char *) &keycode_r, - sizeof(keycode_r), - &fujitsu_hotkey->fifo_lock)) - == sizeof(keycode_r)) { - input_report_key(input, keycode_r, 0); - input_sync(input); - vdbg_printk(FUJLAPTOP_DBG_TRACE, - "Pop keycode from ringbuffer [%d]\n", - keycode_r); - } + "Pop keycode from ringbuffer [%d]\n", + keycode_r); } } + } - /* On some models (first seen on the Skylake-based Lifebook - * E736/E746/E756), the touchpad toggle hotkey (Fn+F4) is - * handled in software; its state is queried using FUNC_RFKILL - */ - if ((fujitsu_hotkey->rfkill_supported & BIT(26)) && - (call_fext_func(FUNC_RFKILL, 0x1, 0x0, 0x0) & BIT(26))) { - keycode = KEY_TOUCHPAD_TOGGLE; - input_report_key(input, keycode, 1); - input_sync(input); - input_report_key(input, keycode, 0); - input_sync(input); - } - - break; - default: - keycode = KEY_UNKNOWN; - vdbg_printk(FUJLAPTOP_DBG_WARN, - "Unsupported event [0x%x]\n", event); + /* On some models (first seen on the Skylake-based Lifebook + * E736/E746/E756), the touchpad toggle hotkey (Fn+F4) is + * handled in software; its state is queried using FUNC_RFKILL + */ + if ((fujitsu_hotkey->rfkill_supported & BIT(26)) && + (call_fext_func(FUNC_RFKILL, 0x1, 0x0, 0x0) & BIT(26))) { + keycode = KEY_TOUCHPAD_TOGGLE; input_report_key(input, keycode, 1); input_sync(input); input_report_key(input, keycode, 0); input_sync(input); - break; } + } /* Initialization */ -- 2.11.0