wifi: ipw2x00/lib80211: move remaining lib80211 into libipw

There's already much code in libipw that used to be shared
with more drivers, but now with the prior cleanups, those old
Intel ipw2x00 drivers are also the only ones using whatever is
now left of lib80211. Move lib80211 entirely into libipw.

Link: https://patch.msgid.link/20241007202707.915ef7b9e7c7.Ib9876d2fe3c90f11d6df458b16d0b7d4bf551a8d@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 0 insertions, 257 deletions

diff --git a/net/wireless/lib80211.c b/net/wireless/lib80211.c
deleted file mode 100644
index 64c447040786..000000000000
--- a/net/wireless/lib80211.c
+++ /dev/null
@@ -1,257 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * lib80211 -- common bits for IEEE802.11 drivers
- *
- * Copyright(c) 2008 John W. Linville <linville@tuxdriver.com>
- *
- * Portions copied from old ieee80211 component, w/ original copyright
- * notices below:
- *
- * Host AP crypto routines
- *
- * Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi>
- * Portions Copyright (C) 2004, Intel Corporation <jketreno@linux.intel.com>
- *
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/module.h>
-#include <linux/ctype.h>
-#include <linux/ieee80211.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-
-#include <net/lib80211.h>
-
-#define DRV_DESCRIPTION	"common routines for IEEE802.11 drivers"
-
-MODULE_DESCRIPTION(DRV_DESCRIPTION);
-MODULE_AUTHOR("John W. Linville <linville@tuxdriver.com>");
-MODULE_LICENSE("GPL");
-
-struct lib80211_crypto_alg {
-	struct list_head list;
-	const struct lib80211_crypto_ops *ops;
-};
-
-static LIST_HEAD(lib80211_crypto_algs);
-static DEFINE_SPINLOCK(lib80211_crypto_lock);
-
-static void lib80211_crypt_deinit_entries(struct lib80211_crypt_info *info,
-					  int force);
-static void lib80211_crypt_quiescing(struct lib80211_crypt_info *info);
-static void lib80211_crypt_deinit_handler(struct timer_list *t);
-
-int lib80211_crypt_info_init(struct lib80211_crypt_info *info, char *name,
-				spinlock_t *lock)
-{
-	memset(info, 0, sizeof(*info));
-
-	info->name = name;
-	info->lock = lock;
-
-	INIT_LIST_HEAD(&info->crypt_deinit_list);
-	timer_setup(&info->crypt_deinit_timer, lib80211_crypt_deinit_handler,
-		    0);
-
-	return 0;
-}
-EXPORT_SYMBOL(lib80211_crypt_info_init);
-
-void lib80211_crypt_info_free(struct lib80211_crypt_info *info)
-{
-	int i;
-
-        lib80211_crypt_quiescing(info);
-        del_timer_sync(&info->crypt_deinit_timer);
-        lib80211_crypt_deinit_entries(info, 1);
-
-        for (i = 0; i < NUM_WEP_KEYS; i++) {
-                struct lib80211_crypt_data *crypt = info->crypt[i];
-                if (crypt) {
-                        if (crypt->ops) {
-                                crypt->ops->deinit(crypt->priv);
-                                module_put(crypt->ops->owner);
-                        }
-                        kfree(crypt);
-                        info->crypt[i] = NULL;
-                }
-        }
-}
-EXPORT_SYMBOL(lib80211_crypt_info_free);
-
-static void lib80211_crypt_deinit_entries(struct lib80211_crypt_info *info,
-					  int force)
-{
-	struct lib80211_crypt_data *entry, *next;
-	unsigned long flags;
-
-	spin_lock_irqsave(info->lock, flags);
-	list_for_each_entry_safe(entry, next, &info->crypt_deinit_list, list) {
-		if (atomic_read(&entry->refcnt) != 0 && !force)
-			continue;
-
-		list_del(&entry->list);
-
-		if (entry->ops) {
-			entry->ops->deinit(entry->priv);
-			module_put(entry->ops->owner);
-		}
-		kfree(entry);
-	}
-	spin_unlock_irqrestore(info->lock, flags);
-}
-
-/* After this, crypt_deinit_list won't accept new members */
-static void lib80211_crypt_quiescing(struct lib80211_crypt_info *info)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(info->lock, flags);
-	info->crypt_quiesced = 1;
-	spin_unlock_irqrestore(info->lock, flags);
-}
-
-static void lib80211_crypt_deinit_handler(struct timer_list *t)
-{
-	struct lib80211_crypt_info *info = from_timer(info, t,
-						      crypt_deinit_timer);
-	unsigned long flags;
-
-	lib80211_crypt_deinit_entries(info, 0);
-
-	spin_lock_irqsave(info->lock, flags);
-	if (!list_empty(&info->crypt_deinit_list) && !info->crypt_quiesced) {
-		printk(KERN_DEBUG "%s: entries remaining in delayed crypt "
-		       "deletion list\n", info->name);
-		info->crypt_deinit_timer.expires = jiffies + HZ;
-		add_timer(&info->crypt_deinit_timer);
-	}
-	spin_unlock_irqrestore(info->lock, flags);
-}
-
-void lib80211_crypt_delayed_deinit(struct lib80211_crypt_info *info,
-				    struct lib80211_crypt_data **crypt)
-{
-	struct lib80211_crypt_data *tmp;
-	unsigned long flags;
-
-	if (*crypt == NULL)
-		return;
-
-	tmp = *crypt;
-	*crypt = NULL;
-
-	/* must not run ops->deinit() while there may be pending encrypt or
-	 * decrypt operations. Use a list of delayed deinits to avoid needing
-	 * locking. */
-
-	spin_lock_irqsave(info->lock, flags);
-	if (!info->crypt_quiesced) {
-		list_add(&tmp->list, &info->crypt_deinit_list);
-		if (!timer_pending(&info->crypt_deinit_timer)) {
-			info->crypt_deinit_timer.expires = jiffies + HZ;
-			add_timer(&info->crypt_deinit_timer);
-		}
-	}
-	spin_unlock_irqrestore(info->lock, flags);
-}
-EXPORT_SYMBOL(lib80211_crypt_delayed_deinit);
-
-int lib80211_register_crypto_ops(const struct lib80211_crypto_ops *ops)
-{
-	unsigned long flags;
-	struct lib80211_crypto_alg *alg;
-
-	alg = kzalloc(sizeof(*alg), GFP_KERNEL);
-	if (alg == NULL)
-		return -ENOMEM;
-
-	alg->ops = ops;
-
-	spin_lock_irqsave(&lib80211_crypto_lock, flags);
-	list_add(&alg->list, &lib80211_crypto_algs);
-	spin_unlock_irqrestore(&lib80211_crypto_lock, flags);
-
-	printk(KERN_DEBUG "lib80211_crypt: registered algorithm '%s'\n",
-	       ops->name);
-
-	return 0;
-}
-EXPORT_SYMBOL(lib80211_register_crypto_ops);
-
-int lib80211_unregister_crypto_ops(const struct lib80211_crypto_ops *ops)
-{
-	struct lib80211_crypto_alg *alg;
-	unsigned long flags;
-
-	spin_lock_irqsave(&lib80211_crypto_lock, flags);
-	list_for_each_entry(alg, &lib80211_crypto_algs, list) {
-		if (alg->ops == ops)
-			goto found;
-	}
-	spin_unlock_irqrestore(&lib80211_crypto_lock, flags);
-	return -EINVAL;
-
-      found:
-	printk(KERN_DEBUG "lib80211_crypt: unregistered algorithm '%s'\n",
-	       ops->name);
-	list_del(&alg->list);
-	spin_unlock_irqrestore(&lib80211_crypto_lock, flags);
-	kfree(alg);
-	return 0;
-}
-EXPORT_SYMBOL(lib80211_unregister_crypto_ops);
-
-const struct lib80211_crypto_ops *lib80211_get_crypto_ops(const char *name)
-{
-	struct lib80211_crypto_alg *alg;
-	unsigned long flags;
-
-	spin_lock_irqsave(&lib80211_crypto_lock, flags);
-	list_for_each_entry(alg, &lib80211_crypto_algs, list) {
-		if (strcmp(alg->ops->name, name) == 0)
-			goto found;
-	}
-	spin_unlock_irqrestore(&lib80211_crypto_lock, flags);
-	return NULL;
-
-      found:
-	spin_unlock_irqrestore(&lib80211_crypto_lock, flags);
-	return alg->ops;
-}
-EXPORT_SYMBOL(lib80211_get_crypto_ops);
-
-static void *lib80211_crypt_null_init(int keyidx)
-{
-	return (void *)1;
-}
-
-static void lib80211_crypt_null_deinit(void *priv)
-{
-}
-
-static const struct lib80211_crypto_ops lib80211_crypt_null = {
-	.name = "NULL",
-	.init = lib80211_crypt_null_init,
-	.deinit = lib80211_crypt_null_deinit,
-	.owner = THIS_MODULE,
-};
-
-static int __init lib80211_init(void)
-{
-	pr_info(DRV_DESCRIPTION "\n");
-	return lib80211_register_crypto_ops(&lib80211_crypt_null);
-}
-
-static void __exit lib80211_exit(void)
-{
-	lib80211_unregister_crypto_ops(&lib80211_crypt_null);
-	BUG_ON(!list_empty(&lib80211_crypto_algs));
-}
-
-module_init(lib80211_init);
-module_exit(lib80211_exit);