From: Karthikeyan Kathirvel kathirve@codeaurora.org
[ Upstream commit 436a4e88659842a7cf634d7cc088c8f2cc94ebf5 ]
DISABLE_KEY sets the key_len to 0, firmware will not delete the keys if key_len is 0. Changing from security mode to open mode will cause mcast to be still encrypted without vdev restart.
Set the proper key_len for DISABLE_KEY cmd to clear the keys in firmware.
Tested-on: IPQ6018 hw1.0 AHB WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1
Fixes: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices") Reported-by: Sven Eckelmann sven@narfation.org Signed-off-by: Karthikeyan Kathirvel kathirve@codeaurora.org [sven@narfation.org: split into separate patches, clean up commit message] Signed-off-by: Sven Eckelmann sven@narfation.org
Signed-off-by: Kalle Valo kvalo@codeaurora.org Link: https://lore.kernel.org/r/20211115100441.33771-1-sven@narfation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/ath/ath11k/mac.c | 4 +--- drivers/net/wireless/ath/ath11k/wmi.c | 3 ++- 2 files changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c index 0924bc8b35205..304e158f09751 100644 --- a/drivers/net/wireless/ath/ath11k/mac.c +++ b/drivers/net/wireless/ath/ath11k/mac.c @@ -2395,9 +2395,7 @@ static int ath11k_install_key(struct ath11k_vif *arvif, return 0;
if (cmd == DISABLE_KEY) { - /* TODO: Check if FW expects value other than NONE for del */ - /* arg.key_cipher = WMI_CIPHER_NONE; */ - arg.key_len = 0; + arg.key_cipher = WMI_CIPHER_NONE; arg.key_data = NULL; goto install; } diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c index e84127165d858..acf1641ce88fd 100644 --- a/drivers/net/wireless/ath/ath11k/wmi.c +++ b/drivers/net/wireless/ath/ath11k/wmi.c @@ -1665,7 +1665,8 @@ int ath11k_wmi_vdev_install_key(struct ath11k *ar, tlv = (struct wmi_tlv *)(skb->data + sizeof(*cmd)); tlv->header = FIELD_PREP(WMI_TLV_TAG, WMI_TAG_ARRAY_BYTE) | FIELD_PREP(WMI_TLV_LEN, key_len_aligned); - memcpy(tlv->value, (u8 *)arg->key_data, key_len_aligned); + if (arg->key_data) + memcpy(tlv->value, (u8 *)arg->key_data, key_len_aligned);
ret = ath11k_wmi_cmd_send(wmi, skb, WMI_VDEV_INSTALL_KEY_CMDID); if (ret) {