From 9c22b4a34eddbaa5b5243c8cd27e31aa36e676e1 Mon Sep 17 00:00:00 2001 From: Jarod Wilson Date: Thu, 20 Oct 2016 13:55:18 -0400 Subject: net: use core MTU range checking in wireless drivers - set max_mtu in wil6210 driver - set max_mtu in atmel driver - set min/max_mtu in cisco airo driver, remove airo_change_mtu - set min/max_mtu in ipw2100/ipw2200 drivers, remove libipw_change_mtu - set min/max_mtu in p80211netdev, remove wlan_change_mtu - set min/max_mtu in net/mac80211/iface.c and remove ieee80211_change_mtu - set min/max_mtu in wimax/i2400m and remove i2400m_change_mtu - set min/max_mtu in intersil/hostap and remove prism2_change_mtu - set min/max_mtu in intersil/orinoco - set min/max_mtu in tty/n_gsm and remove gsm_change_mtu CC: netdev@vger.kernel.org CC: linux-wireless@vger.kernel.org CC: Maya Erez CC: Simon Kelley CC: Stanislav Yakovlev CC: Johannes Berg CC: Inaky Perez-Gonzalez Signed-off-by: Jarod Wilson Acked-by: Johannes Berg Signed-off-by: David S. Miller --- drivers/net/wireless/ath/wil6210/netdev.c | 17 +---------------- drivers/net/wireless/atmel/atmel.c | 13 ++++--------- drivers/net/wireless/cisco/airo.c | 14 +++----------- drivers/net/wireless/intel/ipw2x00/ipw2100.c | 3 ++- drivers/net/wireless/intel/ipw2x00/ipw2200.c | 8 ++++++-- drivers/net/wireless/intel/ipw2x00/libipw.h | 1 - drivers/net/wireless/intel/ipw2x00/libipw_module.c | 9 --------- drivers/net/wireless/intersil/hostap/hostap_main.c | 15 ++------------- drivers/net/wireless/intersil/orinoco/main.c | 6 +++--- 9 files changed, 21 insertions(+), 65 deletions(-) (limited to 'drivers/net/wireless') diff --git a/drivers/net/wireless/ath/wil6210/netdev.c b/drivers/net/wireless/ath/wil6210/netdev.c index 61de5e9f8ef0..d18372cdc8ca 100644 --- a/drivers/net/wireless/ath/wil6210/netdev.c +++ b/drivers/net/wireless/ath/wil6210/netdev.c @@ -41,21 +41,6 @@ static int wil_stop(struct net_device *ndev) return wil_down(wil); } -static int wil_change_mtu(struct net_device *ndev, int new_mtu) -{ - struct wil6210_priv *wil = ndev_to_wil(ndev); - - if (new_mtu < 68 || new_mtu > mtu_max) { - wil_err(wil, "invalid MTU %d\n", new_mtu); - return -EINVAL; - } - - wil_dbg_misc(wil, "change MTU %d -> %d\n", ndev->mtu, new_mtu); - ndev->mtu = new_mtu; - - return 0; -} - static int wil_do_ioctl(struct net_device *ndev, struct ifreq *ifr, int cmd) { struct wil6210_priv *wil = ndev_to_wil(ndev); @@ -69,7 +54,6 @@ static const struct net_device_ops wil_netdev_ops = { .ndo_start_xmit = wil_start_xmit, .ndo_set_mac_address = eth_mac_addr, .ndo_validate_addr = eth_validate_addr, - .ndo_change_mtu = wil_change_mtu, .ndo_do_ioctl = wil_do_ioctl, }; @@ -126,6 +110,7 @@ static int wil6210_netdev_poll_tx(struct napi_struct *napi, int budget) static void wil_dev_setup(struct net_device *dev) { ether_setup(dev); + dev->max_mtu = mtu_max; dev->tx_queue_len = WIL_TX_Q_LEN_DEFAULT; } diff --git a/drivers/net/wireless/atmel/atmel.c b/drivers/net/wireless/atmel/atmel.c index bf2e9a083c0c..eb92d5ab7a27 100644 --- a/drivers/net/wireless/atmel/atmel.c +++ b/drivers/net/wireless/atmel/atmel.c @@ -1295,14 +1295,6 @@ static struct iw_statistics *atmel_get_wireless_stats(struct net_device *dev) return &priv->wstats; } -static int atmel_change_mtu(struct net_device *dev, int new_mtu) -{ - if ((new_mtu < 68) || (new_mtu > 2312)) - return -EINVAL; - dev->mtu = new_mtu; - return 0; -} - static int atmel_set_mac_address(struct net_device *dev, void *p) { struct sockaddr *addr = p; @@ -1506,7 +1498,6 @@ static const struct file_operations atmel_proc_fops = { static const struct net_device_ops atmel_netdev_ops = { .ndo_open = atmel_open, .ndo_stop = atmel_close, - .ndo_change_mtu = atmel_change_mtu, .ndo_set_mac_address = atmel_set_mac_address, .ndo_start_xmit = start_tx, .ndo_do_ioctl = atmel_ioctl, @@ -1600,6 +1591,10 @@ struct net_device *init_atmel_card(unsigned short irq, unsigned long port, dev->irq = irq; dev->base_addr = port; + /* MTU range: 68 - 2312 */ + dev->min_mtu = 68; + dev->max_mtu = MAX_WIRELESS_BODY - ETH_FCS_LEN; + SET_NETDEV_DEV(dev, sys_dev); if ((rc = request_irq(dev->irq, service_interrupt, IRQF_SHARED, dev->name, dev))) { diff --git a/drivers/net/wireless/cisco/airo.c b/drivers/net/wireless/cisco/airo.c index 69b826d229c5..4b040451a9b8 100644 --- a/drivers/net/wireless/cisco/airo.c +++ b/drivers/net/wireless/cisco/airo.c @@ -2329,14 +2329,6 @@ static int airo_set_mac_address(struct net_device *dev, void *p) return 0; } -static int airo_change_mtu(struct net_device *dev, int new_mtu) -{ - if ((new_mtu < 68) || (new_mtu > 2400)) - return -EINVAL; - dev->mtu = new_mtu; - return 0; -} - static LIST_HEAD(airo_devices); static void add_airo_dev(struct airo_info *ai) @@ -2656,7 +2648,6 @@ static const struct net_device_ops airo11_netdev_ops = { .ndo_get_stats = airo_get_stats, .ndo_set_mac_address = airo_set_mac_address, .ndo_do_ioctl = airo_ioctl, - .ndo_change_mtu = airo_change_mtu, }; static void wifi_setup(struct net_device *dev) @@ -2668,6 +2659,8 @@ static void wifi_setup(struct net_device *dev) dev->type = ARPHRD_IEEE80211; dev->hard_header_len = ETH_HLEN; dev->mtu = AIRO_DEF_MTU; + dev->min_mtu = 68; + dev->max_mtu = MIC_MSGLEN_MAX; dev->addr_len = ETH_ALEN; dev->tx_queue_len = 100; @@ -2754,7 +2747,6 @@ static const struct net_device_ops airo_netdev_ops = { .ndo_set_rx_mode = airo_set_multicast_list, .ndo_set_mac_address = airo_set_mac_address, .ndo_do_ioctl = airo_ioctl, - .ndo_change_mtu = airo_change_mtu, .ndo_validate_addr = eth_validate_addr, }; @@ -2766,7 +2758,6 @@ static const struct net_device_ops mpi_netdev_ops = { .ndo_set_rx_mode = airo_set_multicast_list, .ndo_set_mac_address = airo_set_mac_address, .ndo_do_ioctl = airo_ioctl, - .ndo_change_mtu = airo_change_mtu, .ndo_validate_addr = eth_validate_addr, }; @@ -2822,6 +2813,7 @@ static struct net_device *_init_airo_card( unsigned short irq, int port, dev->irq = irq; dev->base_addr = port; dev->priv_flags &= ~IFF_TX_SKB_SHARING; + dev->max_mtu = MIC_MSGLEN_MAX; SET_NETDEV_DEV(dev, dmdev); diff --git a/drivers/net/wireless/intel/ipw2x00/ipw2100.c b/drivers/net/wireless/intel/ipw2x00/ipw2100.c index bfa542c8d6f1..64176090b196 100644 --- a/drivers/net/wireless/intel/ipw2x00/ipw2100.c +++ b/drivers/net/wireless/intel/ipw2x00/ipw2100.c @@ -6035,7 +6035,6 @@ static const struct net_device_ops ipw2100_netdev_ops = { .ndo_open = ipw2100_open, .ndo_stop = ipw2100_close, .ndo_start_xmit = libipw_xmit, - .ndo_change_mtu = libipw_change_mtu, .ndo_tx_timeout = ipw2100_tx_timeout, .ndo_set_mac_address = ipw2100_set_address, .ndo_validate_addr = eth_validate_addr, @@ -6071,6 +6070,8 @@ static struct net_device *ipw2100_alloc_device(struct pci_dev *pci_dev, dev->wireless_data = &priv->wireless_data; dev->watchdog_timeo = 3 * HZ; dev->irq = 0; + dev->min_mtu = 68; + dev->max_mtu = LIBIPW_DATA_LEN; /* NOTE: We don't use the wireless_handlers hook * in dev as the system will start throwing WX requests diff --git a/drivers/net/wireless/intel/ipw2x00/ipw2200.c b/drivers/net/wireless/intel/ipw2x00/ipw2200.c index bfd68612a535..ef9af8a29cad 100644 --- a/drivers/net/wireless/intel/ipw2x00/ipw2200.c +++ b/drivers/net/wireless/intel/ipw2x00/ipw2200.c @@ -11561,7 +11561,6 @@ static const struct net_device_ops ipw_prom_netdev_ops = { .ndo_open = ipw_prom_open, .ndo_stop = ipw_prom_stop, .ndo_start_xmit = ipw_prom_hard_start_xmit, - .ndo_change_mtu = libipw_change_mtu, .ndo_set_mac_address = eth_mac_addr, .ndo_validate_addr = eth_validate_addr, }; @@ -11587,6 +11586,9 @@ static int ipw_prom_alloc(struct ipw_priv *priv) priv->prom_net_dev->type = ARPHRD_IEEE80211_RADIOTAP; priv->prom_net_dev->netdev_ops = &ipw_prom_netdev_ops; + priv->prom_net_dev->min_mtu = 68; + priv->prom_net_dev->max_mtu = LIBIPW_DATA_LEN; + priv->prom_priv->ieee->iw_mode = IW_MODE_MONITOR; SET_NETDEV_DEV(priv->prom_net_dev, &priv->pci_dev->dev); @@ -11619,7 +11621,6 @@ static const struct net_device_ops ipw_netdev_ops = { .ndo_set_rx_mode = ipw_net_set_multicast_list, .ndo_set_mac_address = ipw_net_set_mac_address, .ndo_start_xmit = libipw_xmit, - .ndo_change_mtu = libipw_change_mtu, .ndo_validate_addr = eth_validate_addr, }; @@ -11729,6 +11730,9 @@ static int ipw_pci_probe(struct pci_dev *pdev, net_dev->wireless_handlers = &ipw_wx_handler_def; net_dev->ethtool_ops = &ipw_ethtool_ops; + net_dev->min_mtu = 68; + net_dev->max_mtu = LIBIPW_DATA_LEN; + err = sysfs_create_group(&pdev->dev.kobj, &ipw_attribute_group); if (err) { IPW_ERROR("failed to create sysfs device attributes\n"); diff --git a/drivers/net/wireless/intel/ipw2x00/libipw.h b/drivers/net/wireless/intel/ipw2x00/libipw.h index b0571618c2ed..b51355134e04 100644 --- a/drivers/net/wireless/intel/ipw2x00/libipw.h +++ b/drivers/net/wireless/intel/ipw2x00/libipw.h @@ -948,7 +948,6 @@ static inline int libipw_is_cck_rate(u8 rate) /* libipw.c */ void free_libipw(struct net_device *dev, int monitor); struct net_device *alloc_libipw(int sizeof_priv, int monitor); -int libipw_change_mtu(struct net_device *dev, int new_mtu); void libipw_networks_age(struct libipw_device *ieee, unsigned long age_secs); diff --git a/drivers/net/wireless/intel/ipw2x00/libipw_module.c b/drivers/net/wireless/intel/ipw2x00/libipw_module.c index 60f28740f6af..2332075565f2 100644 --- a/drivers/net/wireless/intel/ipw2x00/libipw_module.c +++ b/drivers/net/wireless/intel/ipw2x00/libipw_module.c @@ -118,15 +118,6 @@ static void libipw_networks_initialize(struct libipw_device *ieee) &ieee->network_free_list); } -int libipw_change_mtu(struct net_device *dev, int new_mtu) -{ - if ((new_mtu < 68) || (new_mtu > LIBIPW_DATA_LEN)) - return -EINVAL; - dev->mtu = new_mtu; - return 0; -} -EXPORT_SYMBOL(libipw_change_mtu); - struct net_device *alloc_libipw(int sizeof_priv, int monitor) { struct libipw_device *ieee; diff --git a/drivers/net/wireless/intersil/hostap/hostap_main.c b/drivers/net/wireless/intersil/hostap/hostap_main.c index 80d4228ba754..1a16b8cb366e 100644 --- a/drivers/net/wireless/intersil/hostap/hostap_main.c +++ b/drivers/net/wireless/intersil/hostap/hostap_main.c @@ -765,16 +765,6 @@ static void hostap_set_multicast_list(struct net_device *dev) } -static int prism2_change_mtu(struct net_device *dev, int new_mtu) -{ - if (new_mtu < PRISM2_MIN_MTU || new_mtu > PRISM2_MAX_MTU) - return -EINVAL; - - dev->mtu = new_mtu; - return 0; -} - - static void prism2_tx_timeout(struct net_device *dev) { struct hostap_interface *iface; @@ -813,7 +803,6 @@ static const struct net_device_ops hostap_netdev_ops = { .ndo_do_ioctl = hostap_ioctl, .ndo_set_mac_address = prism2_set_mac_address, .ndo_set_rx_mode = hostap_set_multicast_list, - .ndo_change_mtu = prism2_change_mtu, .ndo_tx_timeout = prism2_tx_timeout, .ndo_validate_addr = eth_validate_addr, }; @@ -826,7 +815,6 @@ static const struct net_device_ops hostap_mgmt_netdev_ops = { .ndo_do_ioctl = hostap_ioctl, .ndo_set_mac_address = prism2_set_mac_address, .ndo_set_rx_mode = hostap_set_multicast_list, - .ndo_change_mtu = prism2_change_mtu, .ndo_tx_timeout = prism2_tx_timeout, .ndo_validate_addr = eth_validate_addr, }; @@ -839,7 +827,6 @@ static const struct net_device_ops hostap_master_ops = { .ndo_do_ioctl = hostap_ioctl, .ndo_set_mac_address = prism2_set_mac_address, .ndo_set_rx_mode = hostap_set_multicast_list, - .ndo_change_mtu = prism2_change_mtu, .ndo_tx_timeout = prism2_tx_timeout, .ndo_validate_addr = eth_validate_addr, }; @@ -851,6 +838,8 @@ void hostap_setup_dev(struct net_device *dev, local_info_t *local, iface = netdev_priv(dev); ether_setup(dev); + dev->min_mtu = PRISM2_MIN_MTU; + dev->max_mtu = PRISM2_MAX_MTU; dev->priv_flags &= ~IFF_TX_SKB_SHARING; /* kernel callbacks */ diff --git a/drivers/net/wireless/intersil/orinoco/main.c b/drivers/net/wireless/intersil/orinoco/main.c index 7afe2004e930..9d96b7c928f7 100644 --- a/drivers/net/wireless/intersil/orinoco/main.c +++ b/drivers/net/wireless/intersil/orinoco/main.c @@ -322,9 +322,6 @@ int orinoco_change_mtu(struct net_device *dev, int new_mtu) { struct orinoco_private *priv = ndev_priv(dev); - if ((new_mtu < ORINOCO_MIN_MTU) || (new_mtu > ORINOCO_MAX_MTU)) - return -EINVAL; - /* MTU + encapsulation + header length */ if ((new_mtu + ENCAPS_OVERHEAD + sizeof(struct ieee80211_hdr)) > (priv->nicbuf_size - ETH_HLEN)) @@ -2288,6 +2285,9 @@ int orinoco_if_add(struct orinoco_private *priv, dev->base_addr = base_addr; dev->irq = irq; + dev->min_mtu = ORINOCO_MIN_MTU; + dev->max_mtu = ORINOCO_MAX_MTU; + SET_NETDEV_DEV(dev, priv->dev); ret = register_netdev(dev); if (ret) -- cgit v1.2.3