/* * Link Layer Control manager * * Copyright (C) 2012 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, * version 2, as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see . */ #include #include "llc.h" static LIST_HEAD(llc_engines); int nfc_llc_init(void) { int r; r = nfc_llc_nop_register(); if (r) goto exit; r = nfc_llc_shdlc_register(); if (r) goto exit; return 0; exit: nfc_llc_exit(); return r; } void nfc_llc_exit(void) { struct nfc_llc_engine *llc_engine, *n; list_for_each_entry_safe(llc_engine, n, &llc_engines, entry) { list_del(&llc_engine->entry); kfree(llc_engine->name); kfree(llc_engine); } } int nfc_llc_register(const char *name, struct nfc_llc_ops *ops) { struct nfc_llc_engine *llc_engine; llc_engine = kzalloc(sizeof(struct nfc_llc_engine), GFP_KERNEL); if (llc_engine == NULL) return -ENOMEM; llc_engine->name = kstrdup(name, GFP_KERNEL); if (llc_engine->name == NULL) { kfree(llc_engine); return -ENOMEM; } llc_engine->ops = ops; INIT_LIST_HEAD(&llc_engine->entry); list_add_tail(&llc_engine->entry, &llc_engines); return 0; } static struct nfc_llc_engine *nfc_llc_name_to_engine(const char *name) { struct nfc_llc_engine *llc_engine; list_for_each_entry(llc_engine, &llc_engines, entry) { if (strcmp(llc_engine->name, name) == 0) return llc_engine; } return NULL; } void nfc_llc_unregister(const char *name) { struct nfc_llc_engine *llc_engine; llc_engine = nfc_llc_name_to_engine(name); if (llc_engine == NULL) return; list_del(&llc_engine->entry); kfree(llc_engine->name); kfree(llc_engine); } struct nfc_llc *nfc_llc_allocate(const char *name, struct nfc_hci_dev *hdev, xmit_to_drv_t xmit_to_drv, rcv_to_hci_t rcv_to_hci, int tx_headroom, int tx_tailroom, llc_failure_t llc_failure) { struct nfc_llc_engine *llc_engine; struct nfc_llc *llc; llc_engine = nfc_llc_name_to_engine(name); if (llc_engine == NULL) return NULL; llc = kzalloc(sizeof(struct nfc_llc), GFP_KERNEL); if (llc == NULL) return NULL; llc->data = llc_engine->ops->init(hdev, xmit_to_drv, rcv_to_hci, tx_headroom, tx_tailroom, &llc->rx_headroom, &llc->rx_tailroom, llc_failure); if (llc->data == NULL) { kfree(llc); return NULL; } llc->ops = llc_engine->ops; return llc; } void nfc_llc_free(struct nfc_llc *llc) { llc->ops->deinit(llc); kfree(llc); } int nfc_llc_start(struct nfc_llc *llc) { return llc->ops->start(llc); } EXPORT_SYMBOL(nfc_llc_start); int nfc_llc_stop(struct nfc_llc *llc) { return llc->ops->stop(llc); } EXPORT_SYMBOL(nfc_llc_stop); void nfc_llc_rcv_from_drv(struct nfc_llc *llc, struct sk_buff *skb) { llc->ops->rcv_from_drv(llc, skb); } int nfc_llc_xmit_from_hci(struct nfc_llc *llc, struct sk_buff *skb) { return llc->ops->xmit_from_hci(llc, skb); } void *nfc_llc_get_data(struct nfc_llc *llc) { return llc->data; } 124f807'>fc
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authorLinus Torvalds <torvalds@linux-foundation.org>2016-12-25 14:30:04 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2016-12-25 14:30:04 -0800
commit3ddc76dfc786cc6f87852693227fb0b1f124f807 (patch)
tree8192b4721e05cf6823087f9696db8c0c8f144b02 /include/scsi/fc
parentb272f732f888d4cf43c943a40c9aaa836f9b7431 (diff)
parent1f3a8e49d8f28f498b8694464623ac20aebfe62a (diff)
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer type cleanups from Thomas Gleixner: "This series does a tree wide cleanup of types related to timers/timekeeping. - Get rid of cycles_t and use a plain u64. The type is not really helpful and caused more confusion than clarity - Get rid of the ktime union. The union has become useless as we use the scalar nanoseconds storage unconditionally now. The 32bit timespec alike storage got removed due to the Y2038 limitations some time ago. That leaves the odd union access around for no reason. Clean it up. Both changes have been done with coccinelle and a small amount of manual mopping up" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: ktime: Get rid of ktime_equal() ktime: Cleanup ktime_set() usage ktime: Get rid of the union clocksource: Use a plain u64 instead of cycle_t
Diffstat (limited to 'include/scsi/fc')