ath9k: ensure that rx is not enabled during a reset
During a reset, rx buffers are flushed after rx has been disabled. To avoid
race conditions, rx needs to stay disabled during the reset, so avoid any
calls to ath9k_hw_rxena in that case.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
index 8d3e19d..bcc0b22 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -1839,7 +1839,7 @@
* If we're asked to flush receive queue, directly
* chain it back at the queue without processing it.
*/
- if (flush)
+ if (sc->sc_flags & SC_OP_RXFLUSH)
goto requeue_drop_frag;
retval = ath9k_rx_skb_preprocess(common, hw, hdr, &rs,
@@ -1967,7 +1967,8 @@
} else {
list_move_tail(&bf->list, &sc->rx.rxbuf);
ath_rx_buf_link(sc, bf);
- ath9k_hw_rxena(ah);
+ if (!flush)
+ ath9k_hw_rxena(ah);
}
} while (1);