ath9k: remove rssi/antenna information from recv debug stats

The way this is implemented (simply storing the last value) is absolutely
worthless for debugging anything, and the same information is also available
through the MAC sample feature, so there's no point in keeping this around.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath/ath9k/debug.c

@@ -943,27 +943,6 @@ static ssize_t read_file_recv(struct file *file, char __user *user_buf,
 	PHY_ERR("HT-LENGTH ERR", ATH9K_PHYERR_HT_LENGTH_ILLEGAL);
 	PHY_ERR("HT-RATE ERR", ATH9K_PHYERR_HT_RATE_ILLEGAL);
 
-	len += snprintf(buf + len, size - len,
-			"%22s : %10d\n", "RSSI-CTL0",
-			sc->debug.stats.rxstats.rs_rssi_ctl0);
-	len += snprintf(buf + len, size - len,
-			"%22s : %10d\n", "RSSI-CTL1",
-			sc->debug.stats.rxstats.rs_rssi_ctl1);
-	len += snprintf(buf + len, size - len,
-			"%22s : %10d\n", "RSSI-CTL2",
-			sc->debug.stats.rxstats.rs_rssi_ctl2);
-	len += snprintf(buf + len, size - len,
-			"%22s : %10d\n", "RSSI-EXT0",
-			sc->debug.stats.rxstats.rs_rssi_ext0);
-	len += snprintf(buf + len, size - len,
-			"%22s : %10d\n", "RSSI-EXT1",
-			sc->debug.stats.rxstats.rs_rssi_ext1);
-	len += snprintf(buf + len, size - len,
-			"%22s : %10d\n", "RSSI-EXT2",
-			sc->debug.stats.rxstats.rs_rssi_ext2);
-	len += snprintf(buf + len, size - len,
-			"%22s : %10d\n", "Rx Antenna",
-			sc->debug.stats.rxstats.rs_antenna);
 	len += snprintf(buf + len, size - len,
 			"%22s : %10u\n", "RX-Pkts-All",
 			sc->debug.stats.rxstats.rx_pkts_all);
@@ -1011,16 +990,6 @@ void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs)
 			RX_PHY_ERR_INC(rs->rs_phyerr);
 	}
 
-	sc->debug.stats.rxstats.rs_rssi_ctl0 = rs->rs_rssi_ctl0;
-	sc->debug.stats.rxstats.rs_rssi_ctl1 = rs->rs_rssi_ctl1;
-	sc->debug.stats.rxstats.rs_rssi_ctl2 = rs->rs_rssi_ctl2;
-
-	sc->debug.stats.rxstats.rs_rssi_ext0 = rs->rs_rssi_ext0;
-	sc->debug.stats.rxstats.rs_rssi_ext1 = rs->rs_rssi_ext1;
-	sc->debug.stats.rxstats.rs_rssi_ext2 = rs->rs_rssi_ext2;
-
-	sc->debug.stats.rxstats.rs_antenna = rs->rs_antenna;
-
 #ifdef CONFIG_ATH9K_MAC_DEBUG
 	spin_lock(&sc->debug.samp_lock);
 	RX_SAMP_DBG(jiffies) = jiffies;

drivers/net/wireless/ath/ath9k/debug.h

@@ -165,13 +165,6 @@ struct ath_rx_stats {
 	u32 post_delim_crc_err;
 	u32 decrypt_busy_err;
 	u32 phy_err_stats[ATH9K_PHYERR_MAX];
-	int8_t rs_rssi_ctl0;
-	int8_t rs_rssi_ctl1;
-	int8_t rs_rssi_ctl2;
-	int8_t rs_rssi_ext0;
-	int8_t rs_rssi_ext1;
-	int8_t rs_rssi_ext2;
-	u8 rs_antenna;
 };
 
 enum ath_reset_type {