--- a/drivers/net/wireless/ath/ath9k/mac.c +++ b/drivers/net/wireless/ath/ath9k/mac.c @@ -689,7 +689,7 @@ bool ath9k_hw_stopdmarecv(struct ath_hw { #define AH_RX_STOP_DMA_TIMEOUT 10000 /* usec */ struct ath_common *common = ath9k_hw_common(ah); - u32 mac_status, last_mac_status = 0; + u32 mac_status = 0, last_mac_status = 0; int i; /* Enable access to the DMA observation bus */ @@ -719,6 +719,16 @@ bool ath9k_hw_stopdmarecv(struct ath_hw } if (i == 0) { + if (!AR_SREV_9300_20_OR_LATER(ah) && + (mac_status & 0x700) == 0) { + /* + * DMA is idle but the MAC is still stuck + * processing events + */ + *reset = true; + return true; + } + ath_err(common, "DMA failed to stop in %d ms AR_CR=0x%08x AR_DIAG_SW=0x%08x DMADBG_7=0x%08x\n", AH_RX_STOP_DMA_TIMEOUT / 1000,