Harshitha Prem <quic_hprem@xxxxxxxxxxx> wrote: > Perform dma_sync_single_for_cpu() on monitor ring rx buffer before > reading BUFFER_DONE tag and do dma_unmap_single() only after device > had set BUFFER_DONE tag to the buffer. > > Also when BUFFER_DONE tag is not set, allow the buffer to get read > next time without freeing skb. > > This helps to fix AP+Monitor VAP with flood traffic scenario to see > monitor ring rx buffer overrun missing BUFFER_DONE tag to be set. > > Also remove redundant rx dma buf free performed on DP > rx_mon_status_refill_ring. > > Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1 > > Signed-off-by: Sathishkumar Muruganandam <quic_murugana@xxxxxxxxxxx> > Signed-off-by: Harshitha Prem <quic_hprem@xxxxxxxxxxx> > Signed-off-by: Kalle Valo <quic_kvalo@xxxxxxxxxxx> Patch applied to ath-next branch of ath.git, thanks. 68e93ac5a31d wifi: ath11k: fix BUFFER_DONE read on monitor ring rx buffer -- https://patchwork.kernel.org/project/linux-wireless/patch/20230309164434.32660-1-quic_hprem@xxxxxxxxxxx/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
