[PATCH] wifi: ath12k: do not process consecutive RDDM event
Kalle Valo
kvalo at kernel.org
Thu May 30 08:51:58 PDT 2024
Baochen Qiang <quic_bqiang at quicinc.com> wrote:
> Currently we do reset for each RDDM event from MHI, however there are
> cases, see below log, that we get two or more consecutive events, and
> it is pointless to do reset for the subsequent ones. What's more, it
> makes reset process more likely to fail.
>
> [ 103.289864] mhi mhi0: System error detected
> [ 103.289871] ath12k_pci 0000:03:00.0: mhi notify status reason MHI_CB_EE_RDDM
> [ 103.293144] mhi mhi0: System error detected
> [ 103.293150] ath12k_pci 0000:03:00.0: mhi notify status reason MHI_CB_EE_RDDM
>
> Add a check to avoid reset again and again. This is done by tracking previous
> MHI status: if we receive a new RDDM event while the previous event is
> also the same, we treat it as duplicate and ignore it, because normally
> we should at least receive a MHI_CB_EE_MISSION_MODE event between them.
>
> Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
>
> Signed-off-by: Baochen Qiang <quic_bqiang at quicinc.com>
> Acked-by: Jeff Johnson <quic_jjohnson at quicinc.com>
> Signed-off-by: Kalle Valo <quic_kvalo at quicinc.com>
Patch applied to ath-next branch of ath.git, thanks.
8233d2716570 wifi: ath12k: do not process consecutive RDDM event
--
https://patchwork.kernel.org/project/linux-wireless/patch/20240529015357.9846-1-quic_bqiang@quicinc.com/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
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