Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1170951AbdDXNfg (ORCPT ); Mon, 24 Apr 2017 09:35:36 -0400 Received: from mail-lf0-f65.google.com ([209.85.215.65]:33731 "EHLO mail-lf0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1170992AbdDXNds (ORCPT ); Mon, 24 Apr 2017 09:33:48 -0400 From: =?UTF-8?q?Micha=C5=82=20K=C4=99pie=C5=84?= To: Jonathan Woithe , Darren Hart , Andy Shevchenko Cc: platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 10/10] platform/x86: fujitsu-laptop: use device-specific data in remaining module code Date: Mon, 24 Apr 2017 15:33:34 +0200 Message-Id: <20170424133334.7064-11-kernel@kempniu.pl> X-Mailer: git-send-email 2.12.2 In-Reply-To: <20170424133334.7064-1-kernel@kempniu.pl> References: <20170424133334.7064-1-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 Content-Length: 11581 Lines: 326 To prevent using module-wide data in remaining module code, employ acpi_driver_data() and dev_get_drvdata() to fetch device-specific data to work on in each function. This makes the input local variables in hotkey-related callbacks redundant, so remove them. Remove the module-wide struct fujitsu_laptop as it is now redundant. Adjust whitespace to make checkpatch happy. Signed-off-by: Michał Kępień --- drivers/platform/x86/fujitsu-laptop.c | 133 +++++++++++++++++----------------- 1 file changed, 66 insertions(+), 67 deletions(-) diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c index 77082e35f26a..9275f3c829a2 100644 --- a/drivers/platform/x86/fujitsu-laptop.c +++ b/drivers/platform/x86/fujitsu-laptop.c @@ -154,8 +154,6 @@ struct fujitsu_laptop { int flags_state; }; -static struct fujitsu_laptop *fujitsu_laptop; - #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG static u32 dbg_level = 0x03; #endif @@ -313,9 +311,11 @@ static const struct backlight_ops fujitsu_bl_ops = { static ssize_t lid_show(struct device *dev, struct device_attribute *attr, char *buf) { - if (!(fujitsu_laptop->flags_supported & FLAG_LID)) + struct fujitsu_laptop *priv = dev_get_drvdata(dev); + + if (!(priv->flags_supported & FLAG_LID)) return sprintf(buf, "unknown\n"); - if (fujitsu_laptop->flags_state & FLAG_LID) + if (priv->flags_state & FLAG_LID) return sprintf(buf, "open\n"); else return sprintf(buf, "closed\n"); @@ -324,9 +324,11 @@ static ssize_t lid_show(struct device *dev, struct device_attribute *attr, static ssize_t dock_show(struct device *dev, struct device_attribute *attr, char *buf) { - if (!(fujitsu_laptop->flags_supported & FLAG_DOCK)) + struct fujitsu_laptop *priv = dev_get_drvdata(dev); + + if (!(priv->flags_supported & FLAG_DOCK)) return sprintf(buf, "unknown\n"); - if (fujitsu_laptop->flags_state & FLAG_DOCK) + if (priv->flags_state & FLAG_DOCK) return sprintf(buf, "docked\n"); else return sprintf(buf, "undocked\n"); @@ -335,9 +337,11 @@ static ssize_t dock_show(struct device *dev, struct device_attribute *attr, static ssize_t radios_show(struct device *dev, struct device_attribute *attr, char *buf) { - if (!(fujitsu_laptop->flags_supported & FLAG_RFKILL)) + struct fujitsu_laptop *priv = dev_get_drvdata(dev); + + if (!(priv->flags_supported & FLAG_RFKILL)) return sprintf(buf, "unknown\n"); - if (fujitsu_laptop->flags_state & FLAG_RFKILL) + if (priv->flags_state & FLAG_RFKILL) return sprintf(buf, "on\n"); else return sprintf(buf, "killed\n"); @@ -598,19 +602,22 @@ static int acpi_fujitsu_laptop_input_setup(struct acpi_device *device) return input_register_device(priv->input); } -static int fujitsu_laptop_platform_add(void) +static int fujitsu_laptop_platform_add(struct acpi_device *device) { + struct fujitsu_laptop *priv = acpi_driver_data(device); int ret; - fujitsu_laptop->pf_device = platform_device_alloc("fujitsu-laptop", -1); - if (!fujitsu_laptop->pf_device) + priv->pf_device = platform_device_alloc("fujitsu-laptop", -1); + if (!priv->pf_device) return -ENOMEM; - ret = platform_device_add(fujitsu_laptop->pf_device); + platform_set_drvdata(priv->pf_device, priv); + + ret = platform_device_add(priv->pf_device); if (ret) goto err_put_platform_device; - ret = sysfs_create_group(&fujitsu_laptop->pf_device->dev.kobj, + ret = sysfs_create_group(&priv->pf_device->dev.kobj, &fujitsu_pf_attribute_group); if (ret) goto err_del_platform_device; @@ -618,18 +625,20 @@ static int fujitsu_laptop_platform_add(void) return 0; err_del_platform_device: - platform_device_del(fujitsu_laptop->pf_device); + platform_device_del(priv->pf_device); err_put_platform_device: - platform_device_put(fujitsu_laptop->pf_device); + platform_device_put(priv->pf_device); return ret; } -static void fujitsu_laptop_platform_remove(void) +static void fujitsu_laptop_platform_remove(struct acpi_device *device) { - sysfs_remove_group(&fujitsu_laptop->pf_device->dev.kobj, + struct fujitsu_laptop *priv = acpi_driver_data(device); + + sysfs_remove_group(&priv->pf_device->dev.kobj, &fujitsu_pf_attribute_group); - platform_device_unregister(fujitsu_laptop->pf_device); + platform_device_unregister(priv->pf_device); } static int logolamp_set(struct led_classdev *cdev, @@ -813,17 +822,16 @@ static int acpi_fujitsu_laptop_add(struct acpi_device *device) if (!priv) return -ENOMEM; - fujitsu_laptop = priv; - fujitsu_laptop->handle = device->handle; + priv->handle = device->handle; sprintf(acpi_device_name(device), "%s", ACPI_FUJITSU_LAPTOP_DEVICE_NAME); sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS); device->driver_data = priv; /* kfifo */ - spin_lock_init(&fujitsu_laptop->fifo_lock); - error = kfifo_alloc(&fujitsu_laptop->fifo, RINGBUFFERSIZE * sizeof(int), - GFP_KERNEL); + spin_lock_init(&priv->fifo_lock); + error = kfifo_alloc(&priv->fifo, RINGBUFFERSIZE * sizeof(int), + GFP_KERNEL); if (error) { pr_err("kfifo_alloc failed\n"); goto err_stop; @@ -833,7 +841,7 @@ static int acpi_fujitsu_laptop_add(struct acpi_device *device) if (error) goto err_free_fifo; - error = acpi_bus_update_power(fujitsu_laptop->handle, &state); + error = acpi_bus_update_power(priv->handle, &state); if (error) { pr_err("Error reading power state\n"); goto err_free_fifo; @@ -843,50 +851,47 @@ static int acpi_fujitsu_laptop_add(struct acpi_device *device) acpi_device_name(device), acpi_device_bid(device), !device->power.state ? "on" : "off"); - fujitsu_laptop->dev = device; + priv->dev = device; - if (acpi_has_method(device->handle, METHOD_NAME__INI)) { + if (acpi_has_method(priv->handle, METHOD_NAME__INI)) { vdbg_printk(FUJLAPTOP_DBG_INFO, "Invoking _INI\n"); if (ACPI_FAILURE (acpi_evaluate_object - (device->handle, METHOD_NAME__INI, NULL, NULL))) + (priv->handle, METHOD_NAME__INI, NULL, NULL))) pr_err("_INI Method failed\n"); } i = 0; - while (fext_buttons(fujitsu_laptop->handle, 0x1, 0x0, 0x0) != 0 && + while (fext_buttons(priv->handle, 0x1, 0x0, 0x0) != 0 && i++ < MAX_HOTKEY_RINGBUFFER_SIZE) ; /* No action, result is discarded */ vdbg_printk(FUJLAPTOP_DBG_INFO, "Discarded %i ringbuffer entries\n", i); - fujitsu_laptop->flags_supported = fext_flags(fujitsu_laptop->handle, - 0x0, 0x0, 0x0); + priv->flags_supported = fext_flags(priv->handle, 0x0, 0x0, 0x0); /* Make sure our bitmask of supported functions is cleared if the RFKILL function block is not implemented, like on the S7020. */ - if (fujitsu_laptop->flags_supported == UNSUPPORTED_CMD) - fujitsu_laptop->flags_supported = 0; + if (priv->flags_supported == UNSUPPORTED_CMD) + priv->flags_supported = 0; - if (fujitsu_laptop->flags_supported) - fujitsu_laptop->flags_state = fext_flags(fujitsu_laptop->handle, - 0x4, 0x0, 0x0); + if (priv->flags_supported) + priv->flags_state = fext_flags(priv->handle, 0x4, 0x0, 0x0); /* Suspect this is a keymap of the application panel, print it */ - pr_info("BTNI: [0x%x]\n", fext_buttons(fujitsu_laptop->handle, - 0x0, 0x0, 0x0)); + pr_info("BTNI: [0x%x]\n", fext_buttons(priv->handle, 0x0, 0x0, 0x0)); error = acpi_fujitsu_laptop_leds_register(device); if (error) goto err_free_fifo; - error = fujitsu_laptop_platform_add(); + error = fujitsu_laptop_platform_add(device); if (error) goto err_free_fifo; return 0; err_free_fifo: - kfifo_free(&fujitsu_laptop->fifo); + kfifo_free(&priv->fifo); err_stop: return error; } @@ -895,44 +900,42 @@ static int acpi_fujitsu_laptop_remove(struct acpi_device *device) { struct fujitsu_laptop *priv = acpi_driver_data(device); - fujitsu_laptop_platform_remove(); + fujitsu_laptop_platform_remove(device); kfifo_free(&priv->fifo); return 0; } -static void acpi_fujitsu_laptop_press(int scancode) +static void acpi_fujitsu_laptop_press(struct acpi_device *device, int scancode) { - struct input_dev *input = fujitsu_laptop->input; + struct fujitsu_laptop *priv = acpi_driver_data(device); int status; - status = kfifo_in_locked(&fujitsu_laptop->fifo, - (unsigned char *)&scancode, sizeof(scancode), - &fujitsu_laptop->fifo_lock); + status = kfifo_in_locked(&priv->fifo, (unsigned char *)&scancode, + sizeof(scancode), &priv->fifo_lock); if (status != sizeof(scancode)) { vdbg_printk(FUJLAPTOP_DBG_WARN, "Could not push scancode [0x%x]\n", scancode); return; } - sparse_keymap_report_event(input, scancode, 1, false); + sparse_keymap_report_event(priv->input, scancode, 1, false); vdbg_printk(FUJLAPTOP_DBG_TRACE, "Push scancode into ringbuffer [0x%x]\n", scancode); } -static void acpi_fujitsu_laptop_release(void) +static void acpi_fujitsu_laptop_release(struct acpi_device *device) { - struct input_dev *input = fujitsu_laptop->input; + struct fujitsu_laptop *priv = acpi_driver_data(device); int scancode, status; while (true) { - status = kfifo_out_locked(&fujitsu_laptop->fifo, + status = kfifo_out_locked(&priv->fifo, (unsigned char *)&scancode, - sizeof(scancode), - &fujitsu_laptop->fifo_lock); + sizeof(scancode), &priv->fifo_lock); if (status != sizeof(scancode)) return; - sparse_keymap_report_event(input, scancode, 0, false); + sparse_keymap_report_event(priv->input, scancode, 0, false); vdbg_printk(FUJLAPTOP_DBG_TRACE, "Pop scancode from ringbuffer [0x%x]\n", scancode); } @@ -940,31 +943,27 @@ static void acpi_fujitsu_laptop_release(void) static void acpi_fujitsu_laptop_notify(struct acpi_device *device, u32 event) { - struct input_dev *input; + struct fujitsu_laptop *priv = acpi_driver_data(device); int scancode, i = 0; unsigned int irb; - input = fujitsu_laptop->input; - if (event != ACPI_FUJITSU_NOTIFY_CODE1) { vdbg_printk(FUJLAPTOP_DBG_WARN, "Unsupported event [0x%x]\n", event); - sparse_keymap_report_event(input, -1, 1, true); + sparse_keymap_report_event(priv->input, -1, 1, true); return; } - if (fujitsu_laptop->flags_supported) - fujitsu_laptop->flags_state = fext_flags(fujitsu_laptop->handle, - 0x4, 0x0, 0x0); + if (priv->flags_supported) + priv->flags_state = fext_flags(priv->handle, 0x4, 0x0, 0x0); - while ((irb = fext_buttons(fujitsu_laptop->handle, - 0x1, 0x0, 0x0)) != 0 && + while ((irb = fext_buttons(priv->handle, 0x1, 0x0, 0x0)) != 0 && i++ < MAX_HOTKEY_RINGBUFFER_SIZE) { scancode = irb & 0x4ff; - if (sparse_keymap_entry_from_scancode(input, scancode)) - acpi_fujitsu_laptop_press(scancode); + if (sparse_keymap_entry_from_scancode(priv->input, scancode)) + acpi_fujitsu_laptop_press(device, scancode); else if (scancode == 0) - acpi_fujitsu_laptop_release(); + acpi_fujitsu_laptop_release(device); else vdbg_printk(FUJLAPTOP_DBG_WARN, "Unknown GIRB result [%x]\n", irb); @@ -974,9 +973,9 @@ static void acpi_fujitsu_laptop_notify(struct acpi_device *device, u32 event) * E736/E746/E756), the touchpad toggle hotkey (Fn+F4) is * handled in software; its state is queried using FUNC_FLAGS */ - if ((fujitsu_laptop->flags_supported & BIT(26)) && - (fext_flags(fujitsu_laptop->handle, 0x1, 0x0, 0x0) & BIT(26))) - sparse_keymap_report_event(input, BIT(26), 1, true); + if ((priv->flags_supported & BIT(26)) && + (fext_flags(priv->handle, 0x1, 0x0, 0x0) & BIT(26))) + sparse_keymap_report_event(priv->input, BIT(26), 1, true); } /* Initialization */ -- 2.12.2