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ath11k: Drop multicast fragments 

Fragmentation is used only with unicast frames. Drop multicast fragments
to avoid any undesired behavior.

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01734-QCAHKSWPL_SILICONZ-1 v2

Cc: stable@vger.kernel.org
Signed-off-by: Sriram R <srirrama@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Link: https://lore.kernel.org/r/20210511200110.1d53bfd20a8b.Ibb63283051bb5e2c45951932c6e1f351d5a73dc3@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Sriram R 2021-05-11 20:02:59 +02:00 committed by Johannes Berg
parent c3944a5621
commit 210f563b09
1 changed files with 16 additions and 0 deletions
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16
drivers/net/wireless/ath/ath11k/dp_rx.c
View File

@ -260,6 +260,16 @@ static void ath11k_dp_rxdesc_set_msdu_len(struct ath11k_base *ab,
ab->hw_params.hw_ops->rx_desc_set_msdu_len(desc, len);
}
static bool ath11k_dp_rx_h_attn_is_mcbc(struct ath11k_base *ab,
struct hal_rx_desc *desc)
{
struct rx_attention *attn = ath11k_dp_rx_get_attention(ab, desc);
return ath11k_dp_rx_h_msdu_end_first_msdu(ab, desc) &&
(!!FIELD_GET(RX_ATTENTION_INFO1_MCAST_BCAST,
__le32_to_cpu(attn->info1)));
}
static void ath11k_dp_service_mon_ring(struct timer_list *t)
{
struct ath11k_base *ab = from_timer(ab, t, mon_reap_timer);
@ -3468,6 +3478,7 @@ static int ath11k_dp_rx_frag_h_mpdu(struct ath11k *ar,
u8 tid;
int ret = 0;
bool more_frags;
bool is_mcbc;
rx_desc = (struct hal_rx_desc *)msdu->data;
peer_id = ath11k_dp_rx_h_mpdu_start_peer_id(ar->ab, rx_desc);
@ -3475,6 +3486,11 @@ static int ath11k_dp_rx_frag_h_mpdu(struct ath11k *ar,
seqno = ath11k_dp_rx_h_mpdu_start_seq_no(ar->ab, rx_desc);
frag_no = ath11k_dp_rx_h_mpdu_start_frag_no(ar->ab, msdu);
more_frags = ath11k_dp_rx_h_mpdu_start_more_frags(ar->ab, msdu);
is_mcbc = ath11k_dp_rx_h_attn_is_mcbc(ar->ab, rx_desc);
/* Multicast/Broadcast fragments are not expected */
if (is_mcbc)
return -EINVAL;
if (!ath11k_dp_rx_h_mpdu_start_seq_ctrl_valid(ar->ab, rx_desc) ||
!ath11k_dp_rx_h_mpdu_start_fc_valid(ar->ab, rx_desc) ||