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2023-12-11 072de836f53be56a70cecf70b43ae43b7ce17376 
 kernel/drivers/acpi/dock.c
....@@ -1,23 +1,10 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
12 /*
23  *  dock.c - ACPI dock station driver
34  *
45  *  Copyright (C) 2006, 2014, Intel Corp.
56  *  Author: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
67  *          Rafael J. Wysocki <rafael.j.wysocki@intel.com>
7
- *
8
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
9
- *
10
- *  This program is free software; you can redistribute it and/or modify
11
- *  it under the terms of the GNU General Public License as published by
12
- *  the Free Software Foundation; either version 2 of the License, or (at
13
- *  your option) any later version.
14
- *
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- *  This program is distributed in the hope that it will be useful, but
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- *  WITHOUT ANY WARRANTY; without even the implied warranty of
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- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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- *  General Public License for more details.
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- *
20
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
218  */
229 
2310 #include <linux/kernel.h>
....@@ -32,8 +19,6 @@
3219 #include <linux/acpi.h>
3320 
3421 #include "internal.h"
35
-
36
-ACPI_MODULE_NAME("dock");
3722 
3823 static bool immediate_undock = 1;
3924 module_param(immediate_undock, bool, 0644);
....@@ -246,7 +231,8 @@
246231 	 * between them).
247232 	 */
248233 	list_for_each_entry_reverse(dd, &ds->dependent_devices, list)
249
-		dock_hotplug_event(dd, ACPI_NOTIFY_EJECT_REQUEST, false);
234
+		dock_hotplug_event(dd, ACPI_NOTIFY_EJECT_REQUEST,
235
+				   DOCK_CALL_HANDLER);
250236 
251237 	list_for_each_entry_reverse(dd, &ds->dependent_devices, list)
252238 		acpi_bus_trim(dd->adev);
....@@ -482,7 +468,7 @@
482468 		surprise_removal = 1;
483469 		event = ACPI_NOTIFY_EJECT_REQUEST;
484470 		/* Fall back */
485
-		/* fall through */
471
+		fallthrough;
486472 	case ACPI_NOTIFY_EJECT_REQUEST:
487473 		begin_undock(ds);
488474 		if ((immediate_undock && !(ds->flags & DOCK_IS_ATA))
....@@ -498,7 +484,7 @@
498484 /*
499485  * show_docked - read method for "docked" file in sysfs
500486  */
501
-static ssize_t show_docked(struct device *dev,
487
+static ssize_t docked_show(struct device *dev,
502488 			   struct device_attribute *attr, char *buf)
503489 {
504490 	struct dock_station *dock_station = dev->platform_data;
....@@ -507,25 +493,25 @@
507493 	acpi_bus_get_device(dock_station->handle, &adev);
508494 	return snprintf(buf, PAGE_SIZE, "%u\n", acpi_device_enumerated(adev));
509495 }
510
-static DEVICE_ATTR(docked, S_IRUGO, show_docked, NULL);
496
+static DEVICE_ATTR_RO(docked);
511497 
512498 /*
513499  * show_flags - read method for flags file in sysfs
514500  */
515
-static ssize_t show_flags(struct device *dev,
501
+static ssize_t flags_show(struct device *dev,
516502 			  struct device_attribute *attr, char *buf)
517503 {
518504 	struct dock_station *dock_station = dev->platform_data;
519505 	return snprintf(buf, PAGE_SIZE, "%d\n", dock_station->flags);
520506 
521507 }
522
-static DEVICE_ATTR(flags, S_IRUGO, show_flags, NULL);
508
+static DEVICE_ATTR_RO(flags);
523509 
524510 /*
525511  * write_undock - write method for "undock" file in sysfs
526512  */
527
-static ssize_t write_undock(struct device *dev, struct device_attribute *attr,
528
-			   const char *buf, size_t count)
513
+static ssize_t undock_store(struct device *dev, struct device_attribute *attr,
514
+			    const char *buf, size_t count)
529515 {
530516 	int ret;
531517 	struct dock_station *dock_station = dev->platform_data;
....@@ -539,13 +525,13 @@
539525 	acpi_scan_lock_release();
540526 	return ret ? ret: count;
541527 }
542
-static DEVICE_ATTR(undock, S_IWUSR, NULL, write_undock);
528
+static DEVICE_ATTR_WO(undock);
543529 
544530 /*
545531  * show_dock_uid - read method for "uid" file in sysfs
546532  */
547
-static ssize_t show_dock_uid(struct device *dev,
548
-			     struct device_attribute *attr, char *buf)
533
+static ssize_t uid_show(struct device *dev,
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+			struct device_attribute *attr, char *buf)
549535 {
550536 	unsigned long long lbuf;
551537 	struct dock_station *dock_station = dev->platform_data;
....@@ -556,10 +542,10 @@
556542 
557543 	return snprintf(buf, PAGE_SIZE, "%llx\n", lbuf);
558544 }
559
-static DEVICE_ATTR(uid, S_IRUGO, show_dock_uid, NULL);
545
+static DEVICE_ATTR_RO(uid);
560546 
561
-static ssize_t show_dock_type(struct device *dev,
562
-		struct device_attribute *attr, char *buf)
547
+static ssize_t type_show(struct device *dev,
548
+			 struct device_attribute *attr, char *buf)
563549 {
564550 	struct dock_station *dock_station = dev->platform_data;
565551 	char *type;
....@@ -575,7 +561,7 @@
575561 
576562 	return snprintf(buf, PAGE_SIZE, "%s\n", type);
577563 }
578
-static DEVICE_ATTR(type, S_IRUGO, show_dock_type, NULL);
564
+static DEVICE_ATTR_RO(type);
579565 
580566 static struct attribute *dock_attributes[] = {
581567 	&dev_attr_docked.attr,