Merge remote-tracking branch 'airlied/drm-next' into topic/vblank-rework

Dave asked me to do the backmerge before sending him the revised pull
request, so here we go. Nothing fancy in the conflicts, just a few
things changed right next to each another.

Conflicts:
	drivers/gpu/drm/drm_irq.c

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>

1 files changed, 28 insertions, 3 deletions

diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index 4b18434ba69..8ad2550bce7 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -1382,6 +1382,9 @@ ath5k_receive_frame(struct ath5k_hw *ah, struct sk_buff *skb,
 	rxs->flag = 0;
 	if (unlikely(rs->rs_status & AR5K_RXERR_MIC))
 		rxs->flag |= RX_FLAG_MMIC_ERROR;
+	if (unlikely(rs->rs_status & AR5K_RXERR_CRC))
+		rxs->flag |= RX_FLAG_FAILED_FCS_CRC;
+
 
 	/*
 	 * always extend the mac timestamp, since this information is
@@ -1449,6 +1452,8 @@ ath5k_receive_frame_ok(struct ath5k_hw *ah, struct ath5k_rx_status *rs)
 	ah->stats.rx_bytes_count += rs->rs_datalen;
 
 	if (unlikely(rs->rs_status)) {
+		unsigned int filters;
+
 		if (rs->rs_status & AR5K_RXERR_CRC)
 			ah->stats.rxerr_crc++;
 		if (rs->rs_status & AR5K_RXERR_FIFO)
@@ -1457,7 +1462,20 @@ ath5k_receive_frame_ok(struct ath5k_hw *ah, struct ath5k_rx_status *rs)
 			ah->stats.rxerr_phy++;
 			if (rs->rs_phyerr > 0 && rs->rs_phyerr < 32)
 				ah->stats.rxerr_phy_code[rs->rs_phyerr]++;
-			return false;
+
+			/*
+			 * Treat packets that underwent a CCK or OFDM reset as having a bad CRC.
+			 * These restarts happen when the radio resynchronizes to a stronger frame
+			 * while receiving a weaker frame. Here we receive the prefix of the weak
+			 * frame. Since these are incomplete packets, mark their CRC as invalid.
+			 */
+			if (rs->rs_phyerr == AR5K_RX_PHY_ERROR_OFDM_RESTART ||
+			    rs->rs_phyerr == AR5K_RX_PHY_ERROR_CCK_RESTART) {
+				rs->rs_status |= AR5K_RXERR_CRC;
+				rs->rs_status &= ~AR5K_RXERR_PHY;
+			} else {
+				return false;
+			}
 		}
 		if (rs->rs_status & AR5K_RXERR_DECRYPT) {
 			/*
@@ -1480,8 +1498,15 @@ ath5k_receive_frame_ok(struct ath5k_hw *ah, struct ath5k_rx_status *rs)
 			return true;
 		}
 
-		/* reject any frames with non-crypto errors */
-		if (rs->rs_status & ~(AR5K_RXERR_DECRYPT))
+		/*
+		 * Reject any frames with non-crypto errors, and take into account the
+		 * current FIF_* filters.
+		 */
+		filters = AR5K_RXERR_DECRYPT;
+		if (ah->fif_filter_flags & FIF_FCSFAIL)
+			filters |= AR5K_RXERR_CRC;
+
+		if (rs->rs_status & ~filters)
 			return false;
 	}