diff options
Diffstat (limited to 'net/phonet/af_phonet.c')
| -rw-r--r-- | net/phonet/af_phonet.c | 32 |
1 files changed, 9 insertions, 23 deletions
diff --git a/net/phonet/af_phonet.c b/net/phonet/af_phonet.c index 3b0ef691f5b1..238a9638d2b0 100644 --- a/net/phonet/af_phonet.c +++ b/net/phonet/af_phonet.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * File: af_phonet.c * @@ -7,26 +8,12 @@ * * Authors: Sakari Ailus <sakari.ailus@nokia.com> * Rémi Denis-Courmont - * - * This program is free software; you can redistribute it and/or - * modify it under the terms 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, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA */ #include <linux/kernel.h> #include <linux/module.h> #include <linux/slab.h> -#include <asm/unaligned.h> +#include <linux/unaligned.h> #include <net/sock.h> #include <linux/if_phonet.h> @@ -35,7 +22,7 @@ #include <net/phonet/pn_dev.h> /* Transport protocol registration */ -static const struct phonet_protocol *proto_tab[PHONET_NPROTO] __read_mostly; +static const struct phonet_protocol __rcu *proto_tab[PHONET_NPROTO] __read_mostly; static const struct phonet_protocol *phonet_proto_get(unsigned int protocol) { @@ -159,7 +146,7 @@ EXPORT_SYMBOL(phonet_header_ops); * Prepends an ISI header and sends a datagram. */ static int pn_send(struct sk_buff *skb, struct net_device *dev, - u16 dst, u16 src, u8 res, u8 irq) + u16 dst, u16 src, u8 res) { struct phonethdr *ph; int err; @@ -195,7 +182,7 @@ static int pn_send(struct sk_buff *skb, struct net_device *dev, if (skb->pkt_type == PACKET_LOOPBACK) { skb_reset_mac_header(skb); skb_orphan(skb); - err = (irq ? netif_rx(skb) : netif_rx_ni(skb)) ? -ENOBUFS : 0; + err = netif_rx(skb) ? -ENOBUFS : 0; } else { err = dev_hard_header(skb, dev, ntohs(skb->protocol), NULL, NULL, skb->len); @@ -227,7 +214,7 @@ static int pn_raw_send(const void *data, int len, struct net_device *dev, skb_reserve(skb, MAX_PHONET_HEADER); __skb_put(skb, len); skb_copy_to_linear_data(skb, data, len); - return pn_send(skb, dev, dst, src, res, 1); + return pn_send(skb, dev, dst, src, res); } /* @@ -282,14 +269,13 @@ int pn_skb_send(struct sock *sk, struct sk_buff *skb, if (!pn_addr(src)) src = pn_object(saddr, pn_obj(src)); - err = pn_send(skb, dev, dst, src, res, 0); + err = pn_send(skb, dev, dst, src, res); dev_put(dev); return err; drop: kfree_skb(skb); - if (dev) - dev_put(dev); + dev_put(dev); return err; } EXPORT_SYMBOL(pn_skb_send); @@ -496,7 +482,7 @@ void phonet_proto_unregister(unsigned int protocol, const struct phonet_protocol *pp) { mutex_lock(&proto_tab_lock); - BUG_ON(proto_tab[protocol] != pp); + BUG_ON(rcu_access_pointer(proto_tab[protocol]) != pp); RCU_INIT_POINTER(proto_tab[protocol], NULL); mutex_unlock(&proto_tab_lock); synchronize_rcu(); |