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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-08-06 12:15:09 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-08-08 07:52:01 +0200
commit71ed79b0e4be0db254640c3beb9a1a0316eb5f61 (patch)
treeaac2f4f0527802478b29c2e7897e56994b6ad759 /drivers/uwb/pal.c
parent7d9c1d2f7aca2651b3821947bf928ee131df102a (diff)
downloadlinux-71ed79b0e4be0db254640c3beb9a1a0316eb5f61.tar.bz2
USB: Move wusbcore and UWB to staging as it is obsolete
The UWB and wusbcore code is long obsolete, so let us just move the code out of the real part of the kernel and into the drivers/staging/ location with plans to remove it entirely in a few releases. Link: https://lore.kernel.org/r/20190806101509.GA11280@kroah.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/uwb/pal.c')
-rw-r--r--drivers/uwb/pal.c128
1 files changed, 0 insertions, 128 deletions
diff --git a/drivers/uwb/pal.c b/drivers/uwb/pal.c
deleted file mode 100644
index 765fd426dbd1..000000000000
--- a/drivers/uwb/pal.c
+++ /dev/null
@@ -1,128 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * UWB PAL support.
- *
- * Copyright (C) 2008 Cambridge Silicon Radio Ltd.
- */
-#include <linux/kernel.h>
-#include <linux/debugfs.h>
-#include <linux/uwb.h>
-#include <linux/export.h>
-
-#include "uwb-internal.h"
-
-/**
- * uwb_pal_init - initialize a UWB PAL
- * @pal: the PAL to initialize
- */
-void uwb_pal_init(struct uwb_pal *pal)
-{
- INIT_LIST_HEAD(&pal->node);
-}
-EXPORT_SYMBOL_GPL(uwb_pal_init);
-
-/**
- * uwb_pal_register - register a UWB PAL
- * @pal: the PAL
- *
- * The PAL must be initialized with uwb_pal_init().
- */
-int uwb_pal_register(struct uwb_pal *pal)
-{
- struct uwb_rc *rc = pal->rc;
- int ret;
-
- if (pal->device) {
- /* create a link to the uwb_rc in the PAL device's directory. */
- ret = sysfs_create_link(&pal->device->kobj,
- &rc->uwb_dev.dev.kobj, "uwb_rc");
- if (ret < 0)
- return ret;
- /* create a link to the PAL in the UWB device's directory. */
- ret = sysfs_create_link(&rc->uwb_dev.dev.kobj,
- &pal->device->kobj, pal->name);
- if (ret < 0) {
- sysfs_remove_link(&pal->device->kobj, "uwb_rc");
- return ret;
- }
- }
-
- pal->debugfs_dir = uwb_dbg_create_pal_dir(pal);
-
- mutex_lock(&rc->uwb_dev.mutex);
- list_add(&pal->node, &rc->pals);
- mutex_unlock(&rc->uwb_dev.mutex);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(uwb_pal_register);
-
-static int find_rc(struct device *dev, const void *data)
-{
- const struct uwb_rc *target_rc = data;
- struct uwb_rc *rc = dev_get_drvdata(dev);
-
- if (rc == NULL) {
- WARN_ON(1);
- return 0;
- }
- if (rc == target_rc) {
- if (rc->ready == 0)
- return 0;
- else
- return 1;
- }
- return 0;
-}
-
-/**
- * Given a radio controller descriptor see if it is registered.
- *
- * @returns false if the rc does not exist or is quiescing; true otherwise.
- */
-static bool uwb_rc_class_device_exists(struct uwb_rc *target_rc)
-{
- struct device *dev;
-
- dev = class_find_device(&uwb_rc_class, NULL, target_rc, find_rc);
-
- put_device(dev);
-
- return (dev != NULL);
-}
-
-/**
- * uwb_pal_unregister - unregister a UWB PAL
- * @pal: the PAL
- */
-void uwb_pal_unregister(struct uwb_pal *pal)
-{
- struct uwb_rc *rc = pal->rc;
-
- uwb_radio_stop(pal);
-
- mutex_lock(&rc->uwb_dev.mutex);
- list_del(&pal->node);
- mutex_unlock(&rc->uwb_dev.mutex);
-
- debugfs_remove(pal->debugfs_dir);
-
- if (pal->device) {
- /* remove link to the PAL in the UWB device's directory. */
- if (uwb_rc_class_device_exists(rc))
- sysfs_remove_link(&rc->uwb_dev.dev.kobj, pal->name);
-
- /* remove link to uwb_rc in the PAL device's directory. */
- sysfs_remove_link(&pal->device->kobj, "uwb_rc");
- }
-}
-EXPORT_SYMBOL_GPL(uwb_pal_unregister);
-
-/**
- * uwb_rc_pal_init - initialize the PAL related parts of a radio controller
- * @rc: the radio controller
- */
-void uwb_rc_pal_init(struct uwb_rc *rc)
-{
- INIT_LIST_HEAD(&rc->pals);
-}