6.14-stable review patch. If anyone has any objections, please let me know.
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From: Rameshkumar Sundaram quic_ramess@quicinc.com
[ Upstream commit 4e635b81db9d69bbb836afae8cb402978ff966a4 ]
Currently in ath12k_dp_rx_process_wbm_err(), when processing packets received on the WBM error ring, pdev validation is done based upon the hw_link_id. But hw_link_id corresponds to link id of a given partner pdev in a MLO hardware group, and is not the correct index to use to lookup a pdev in an SoC(ab). As a result, pdev validation fails, and the reaped packets are dropped instead of being processed.
The correct index to use is the pdev_id, which is already derived in the function. So update the logic to validate the pdev based upon the pdev_id instead of the hw_link_id. This matches the logic used in other Rx ring processing functions.
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1 Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
Fixes: 1a73acb5fba4 ("wifi: ath12k: move to HW link id based receive handling") Signed-off-by: Rameshkumar Sundaram quic_ramess@quicinc.com Link: https://patch.msgid.link/20250102043048.2596791-1-quic_ramess@quicinc.com Signed-off-by: Jeff Johnson jeff.johnson@oss.qualcomm.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/ath/ath12k/dp_rx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ath/ath12k/dp_rx.c b/drivers/net/wireless/ath/ath12k/dp_rx.c index dad35bfd83f62..68d609f2ac60e 100644 --- a/drivers/net/wireless/ath/ath12k/dp_rx.c +++ b/drivers/net/wireless/ath/ath12k/dp_rx.c @@ -4032,7 +4032,7 @@ int ath12k_dp_rx_process_wbm_err(struct ath12k_base *ab, hw_links[hw_link_id].pdev_idx); ar = partner_ab->pdevs[pdev_id].ar;
- if (!ar || !rcu_dereference(ar->ab->pdevs_active[hw_link_id])) { + if (!ar || !rcu_dereference(ar->ab->pdevs_active[pdev_id])) { dev_kfree_skb_any(msdu); continue; }