[PATCH AUTOSEL 3.18 16/19] mac80211: restrict delayed tailroom needed decrement

From: Manikanta Pubbisetty [ Upstream commit 133bf90dbb8b873286f8ec2e81ba26e863114b8c ] As explained in ieee80211_delayed_tailroom_dec(), during roam, keys of the old AP will be destroyed and new keys will be installed. Deletion of the old key causes crypto_tx_tailroom_needed_cnt to go from 1

[PATCH AUTOSEL 3.18 16/19] mac80211: restrict delayed tailroom needed decrement

From: Manikanta Pubbisetty [ Upstream commit 133bf90dbb8b873286f8ec2e81ba26e863114b8c ] As explained in ieee80211_delayed_tailroom_dec(), during roam, keys of the old AP will be destroyed and new keys will be installed. Deletion of the old key causes crypto_tx_tailroom_needed_cnt to go from 1