From 09b1426e7fcec510aba55a761da5004e47a11ce3 Mon Sep 17 00:00:00 2001 From: Chaitanya Date: Fri, 21 Dec 2012 17:15:17 +0530 Subject: [PATCH] mac80211: fix maximum MTU The maximum MTU shouldn't take the headers into account, the maximum MSDU size is exactly the maximum MTU. Signed-off-by: T Krishna Chaitanya Signed-off-by: Johannes Berg --- net/mac80211/iface.c | 11 +---------- 1 file changed, 1 insertion(+), 10 deletions(-) diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 0f2a9f987f79..8be854e86cd9 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -207,17 +207,8 @@ void ieee80211_recalc_idle(struct ieee80211_local *local) static int ieee80211_change_mtu(struct net_device *dev, int new_mtu) { - int meshhdrlen; - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - meshhdrlen = (sdata->vif.type == NL80211_IFTYPE_MESH_POINT) ? 5 : 0; - - /* FIX: what would be proper limits for MTU? - * This interface uses 802.3 frames. */ - if (new_mtu < 256 || - new_mtu > IEEE80211_MAX_DATA_LEN - 24 - 6 - meshhdrlen) { + if (new_mtu < 256 || new_mtu > IEEE80211_MAX_DATA_LEN) return -EINVAL; - } dev->mtu = new_mtu; return 0; -- 2.20.1