From: Ivo van Doorn Date: Mon, 22 Sep 2008 17:40:04 +0000 (+0200) Subject: rt2x00: Fix HW crypto key handling X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=acaf908d408ccd49f13aeb46cbd4428a4db174d1;p=deliverable%2Flinux.git rt2x00: Fix HW crypto key handling When a crypto key is being removed, rt2x00mac should not reset the key->hw_key_idx value because that will prevent the driver from removing the correct key from the hardware. Furthermore ffz() starts counting at 0 instead of 1, so we don't need to substract 1 from the resulting value. Signed-off-by: Stephen Blackheath Signed-off-by: Ivo van Doorn Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c index 485c40de5cc0..2c6cc5c374ff 100644 --- a/drivers/net/wireless/rt2x00/rt2x00mac.c +++ b/drivers/net/wireless/rt2x00/rt2x00mac.c @@ -543,7 +543,8 @@ int rt2x00mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, * provided but key 0 is not, then the key is not found * by the hardware during RX). */ - key->hw_key_idx = 0; + if (cmd == SET_KEY) + key->hw_key_idx = 0; if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) set_key = rt2x00dev->ops->lib->config_pairwise_key; diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c index 2c36b91ff4c7..a461620b489f 100644 --- a/drivers/net/wireless/rt2x00/rt61pci.c +++ b/drivers/net/wireless/rt2x00/rt61pci.c @@ -381,7 +381,7 @@ static int rt61pci_config_shared_key(struct rt2x00_dev *rt2x00dev, if (reg && reg == mask) return -ENOSPC; - key->hw_key_idx += reg ? (ffz(reg) - 1) : 0; + key->hw_key_idx += reg ? ffz(reg) : 0; /* * Upload key to hardware @@ -477,7 +477,7 @@ static int rt61pci_config_pairwise_key(struct rt2x00_dev *rt2x00dev, return -ENOSPC; } - key->hw_key_idx += reg ? (ffz(reg) - 1) : 0; + key->hw_key_idx += reg ? ffz(reg) : 0; /* * Upload key to hardware diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c index 27dde3e34603..934f8e03c5aa 100644 --- a/drivers/net/wireless/rt2x00/rt73usb.c +++ b/drivers/net/wireless/rt2x00/rt73usb.c @@ -393,7 +393,7 @@ static int rt73usb_config_shared_key(struct rt2x00_dev *rt2x00dev, if (reg && reg == mask) return -ENOSPC; - key->hw_key_idx += reg ? (ffz(reg) - 1) : 0; + key->hw_key_idx += reg ? ffz(reg) : 0; /* * Upload key to hardware @@ -494,7 +494,7 @@ static int rt73usb_config_pairwise_key(struct rt2x00_dev *rt2x00dev, return -ENOSPC; } - key->hw_key_idx += reg ? (ffz(reg) - 1) : 0; + key->hw_key_idx += reg ? ffz(reg) : 0; /* * Upload key to hardware