ath9k: add extra checks to reduce the amount of unnecessary rx dma related logspam
[openwrt.git] / package / mac80211 / patches / 576-ath9k_rx_dma_stop_check.patch
1 --- a/drivers/net/wireless/ath/ath9k/mac.c
2 +++ b/drivers/net/wireless/ath/ath9k/mac.c
3 @@ -718,6 +718,12 @@ bool ath9k_hw_stopdmarecv(struct ath_hw 
4                 udelay(AH_TIME_QUANTUM);
5         }
6  
7 +       if (!AR_SREV_9300_20_OR_LATER(ah) && (mac_status & 0x700) == 0) {
8 +               /* DMA is idle but the MAC is still stuck processing events */
9 +               *reset = true;
10 +               return true;
11 +       }
12 +
13         if (i == 0) {
14                 ath_err(common,
15                         "DMA failed to stop in %d ms AR_CR=0x%08x AR_DIAG_SW=0x%08x DMADBG_7=0x%08x\n",