Upgrade to 4.4.50-rt62

The current kernel is based on rt kernel v4.4.6-rt14. We will upgrade it
to 4.4.50-rt62.
The command to achieve it is:
a) Clone a git repo from
git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git

b) Get the diff between this two changesets:
git diff 640eca2901f3435e616157b11379d3223a44b391
705619beeea1b0b48219a683fd1a901a86fdaf5e

where the two commits are:
[yjiang5@jnakajim-build linux-stable-rt]$ git show --oneline --name-only
640eca2901f3435e616157b11379d3223a44b391
640eca2901f3 v4.4.6-rt14
localversion-rt
[yjiang5@jnakajim-build linux-stable-rt]$ git show --oneline --name-only
705619beeea1b0b48219a683fd1a901a86fdaf5e
705619beeea1 Linux 4.4.50-rt62
localversion-rt

c) One patch has been backported thus revert the patch before applying.

 filterdiff -p1 -x scripts/package/Makefile
~/tmp/v4.4.6-rt14-4.4.50-rt62.diff  |patch -p1 --dry-run

Upstream status: backport

Change-Id: I244d57a32f6066e5a5b9915f9fbf99e7bbca6e01
Signed-off-by: Yunhong Jiang <yunhong.jiang@linux.intel.com>

12 files changed, 57 insertions, 31 deletions

diff --git a/kernel/drivers/net/wireless/ath/ath10k/core.c b/kernel/drivers/net/wireless/ath/ath10k/core.c
index 0947cc271..531de256d 100644
--- a/kernel/drivers/net/wireless/ath/ath10k/core.c
+++ b/kernel/drivers/net/wireless/ath/ath10k/core.c
@@ -1681,6 +1681,10 @@ int ath10k_core_start(struct ath10k *ar, enum ath10k_firmware_mode mode)
 		goto err_hif_stop;
 	}
 
+	ar->free_vdev_map = (1LL << ar->max_num_vdevs) - 1;
+
+	INIT_LIST_HEAD(&ar->arvifs);
+
 	/* we don't care about HTT in UTF mode */
 	if (mode == ATH10K_FIRMWARE_MODE_NORMAL) {
 		status = ath10k_htt_setup(&ar->htt);
@@ -1694,10 +1698,6 @@ int ath10k_core_start(struct ath10k *ar, enum ath10k_firmware_mode mode)
 	if (status)
 		goto err_hif_stop;
 
-	ar->free_vdev_map = (1LL << ar->max_num_vdevs) - 1;
-
-	INIT_LIST_HEAD(&ar->arvifs);
-
 	return 0;
 
 err_hif_stop:
diff --git a/kernel/drivers/net/wireless/ath/ath10k/debug.c b/kernel/drivers/net/wireless/ath/ath10k/debug.c
index 6cc1aa344..1a88a24ff 100644
--- a/kernel/drivers/net/wireless/ath/ath10k/debug.c
+++ b/kernel/drivers/net/wireless/ath/ath10k/debug.c
@@ -1986,7 +1986,12 @@ static ssize_t ath10k_write_pktlog_filter(struct file *file,
 		goto out;
 	}
 
-	if (filter && (filter != ar->debug.pktlog_filter)) {
+	if (filter == ar->debug.pktlog_filter) {
+		ret = count;
+		goto out;
+	}
+
+	if (filter) {
 		ret = ath10k_wmi_pdev_pktlog_enable(ar, filter);
 		if (ret) {
 			ath10k_warn(ar, "failed to enable pktlog filter %x: %d\n",
diff --git a/kernel/drivers/net/wireless/ath/ath10k/mac.c b/kernel/drivers/net/wireless/ath/ath10k/mac.c
index 95a55405e..1e1bef349 100644
--- a/kernel/drivers/net/wireless/ath/ath10k/mac.c
+++ b/kernel/drivers/net/wireless/ath/ath10k/mac.c
@@ -4456,7 +4456,10 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
 		goto err_vdev_delete;
 	}
 
-	if (ar->cfg_tx_chainmask) {
+	/* Configuring number of spatial stream for monitor interface is causing
+	 * target assert in qca9888 and qca6174.
+	 */
+	if (ar->cfg_tx_chainmask && (vif->type != NL80211_IFTYPE_MONITOR)) {
 		u16 nss = get_nss_from_chainmask(ar->cfg_tx_chainmask);
 
 		vdev_param = ar->wmi.vdev_param->nss;
@@ -6416,7 +6419,13 @@ ath10k_mac_update_rx_channel(struct ath10k *ar,
 			def = &vifs[0].new_ctx->def;
 
 		ar->rx_channel = def->chan;
-	} else if (ctx && ath10k_mac_num_chanctxs(ar) == 0) {
+	} else if ((ctx && ath10k_mac_num_chanctxs(ar) == 0) ||
+		   (ctx && (ar->state == ATH10K_STATE_RESTARTED))) {
+		/* During driver restart due to firmware assert, since mac80211
+		 * already has valid channel context for given radio, channel
+		 * context iteration return num_chanctx > 0. So fix rx_channel
+		 * when restart is in progress.
+		 */
 		ar->rx_channel = ctx->def.chan;
 	} else {
 		ar->rx_channel = NULL;
diff --git a/kernel/drivers/net/wireless/ath/ath10k/spectral.c b/kernel/drivers/net/wireless/ath/ath10k/spectral.c
index 4671cfbcd..a0e7eebc2 100644
--- a/kernel/drivers/net/wireless/ath/ath10k/spectral.c
+++ b/kernel/drivers/net/wireless/ath/ath10k/spectral.c
@@ -338,7 +338,7 @@ static ssize_t write_file_spec_scan_ctl(struct file *file,
 		} else {
 			res = -EINVAL;
 		}
-	} else if (strncmp("background", buf, 9) == 0) {
+	} else if (strncmp("background", buf, 10) == 0) {
 		res = ath10k_spectral_scan_config(ar, SPECTRAL_BACKGROUND);
 	} else if (strncmp("manual", buf, 6) == 0) {
 		res = ath10k_spectral_scan_config(ar, SPECTRAL_MANUAL);
diff --git a/kernel/drivers/net/wireless/ath/ath5k/led.c b/kernel/drivers/net/wireless/ath/ath5k/led.c
index 803030fd1..6a2a16856 100644
--- a/kernel/drivers/net/wireless/ath/ath5k/led.c
+++ b/kernel/drivers/net/wireless/ath/ath5k/led.c
@@ -77,7 +77,7 @@ static const struct pci_device_id ath5k_led_devices[] = {
 	/* HP Compaq CQ60-206US (ddreggors@jumptv.com) */
 	{ ATH_SDEVICE(PCI_VENDOR_ID_HP, 0x0137a), ATH_LED(3, 1) },
 	/* HP Compaq C700 (nitrousnrg@gmail.com) */
-	{ ATH_SDEVICE(PCI_VENDOR_ID_HP, 0x0137b), ATH_LED(3, 1) },
+	{ ATH_SDEVICE(PCI_VENDOR_ID_HP, 0x0137b), ATH_LED(3, 0) },
 	/* LiteOn AR5BXB63 (magooz@salug.it) */
 	{ ATH_SDEVICE(PCI_VENDOR_ID_ATHEROS, 0x3067), ATH_LED(3, 0) },
 	/* IBM-specific AR5212 (all others) */
diff --git a/kernel/drivers/net/wireless/ath/ath9k/ar5008_phy.c b/kernel/drivers/net/wireless/ath/ath9k/ar5008_phy.c
index 8f8793004..1b271b99c 100644
--- a/kernel/drivers/net/wireless/ath/ath9k/ar5008_phy.c
+++ b/kernel/drivers/net/wireless/ath/ath9k/ar5008_phy.c
@@ -274,6 +274,9 @@ void ar5008_hw_cmn_spur_mitigate(struct ath_hw *ah,
 	};
 	static const int inc[4] = { 0, 100, 0, 0 };
 
+	memset(&mask_m, 0, sizeof(int8_t) * 123);
+	memset(&mask_p, 0, sizeof(int8_t) * 123);
+
 	cur_bin = -6000;
 	upper = bin + 100;
 	lower = bin - 100;
@@ -424,14 +427,9 @@ static void ar5008_hw_spur_mitigate(struct ath_hw *ah,
 	int tmp, new;
 	int i;
 
-	int8_t mask_m[123];
-	int8_t mask_p[123];
 	int cur_bb_spur;
 	bool is2GHz = IS_CHAN_2GHZ(chan);
 
-	memset(&mask_m, 0, sizeof(int8_t) * 123);
-	memset(&mask_p, 0, sizeof(int8_t) * 123);
-
 	for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) {
 		cur_bb_spur = ah->eep_ops->get_spur_channel(ah, i, is2GHz);
 		if (AR_NO_SPUR == cur_bb_spur)
diff --git a/kernel/drivers/net/wireless/ath/ath9k/ar9002_phy.c b/kernel/drivers/net/wireless/ath/ath9k/ar9002_phy.c
index db6624527..53d7445a5 100644
--- a/kernel/drivers/net/wireless/ath/ath9k/ar9002_phy.c
+++ b/kernel/drivers/net/wireless/ath/ath9k/ar9002_phy.c
@@ -178,14 +178,9 @@ static void ar9002_hw_spur_mitigate(struct ath_hw *ah,
 	int i;
 	struct chan_centers centers;
 
-	int8_t mask_m[123];
-	int8_t mask_p[123];
 	int cur_bb_spur;
 	bool is2GHz = IS_CHAN_2GHZ(chan);
 
-	memset(&mask_m, 0, sizeof(int8_t) * 123);
-	memset(&mask_p, 0, sizeof(int8_t) * 123);
-
 	ath9k_hw_get_channel_centers(ah, chan, &centers);
 	freq = centers.synth_center;
 
diff --git a/kernel/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c b/kernel/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
index 8b4561e8c..ef493271c 100644
--- a/kernel/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
+++ b/kernel/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
@@ -4176,7 +4176,7 @@ static void ath9k_hw_ar9300_set_board_values(struct ath_hw *ah,
 	if (!AR_SREV_9330(ah) && !AR_SREV_9340(ah) && !AR_SREV_9531(ah))
 		ar9003_hw_internal_regulator_apply(ah);
 	ar9003_hw_apply_tuning_caps(ah);
-	ar9003_hw_apply_minccapwr_thresh(ah, chan);
+	ar9003_hw_apply_minccapwr_thresh(ah, is2ghz);
 	ar9003_hw_txend_to_xpa_off_apply(ah, is2ghz);
 	ar9003_hw_thermometer_apply(ah);
 	ar9003_hw_thermo_cal_apply(ah);
diff --git a/kernel/drivers/net/wireless/ath/ath9k/eeprom.c b/kernel/drivers/net/wireless/ath/ath9k/eeprom.c
index cc81482c9..113a43fca 100644
--- a/kernel/drivers/net/wireless/ath/ath9k/eeprom.c
+++ b/kernel/drivers/net/wireless/ath/ath9k/eeprom.c
@@ -403,10 +403,9 @@ void ath9k_hw_get_gain_boundaries_pdadcs(struct ath_hw *ah,
 
 	if (match) {
 		if (AR_SREV_9287(ah)) {
-			/* FIXME: array overrun? */
 			for (i = 0; i < numXpdGains; i++) {
 				minPwrT4[i] = data_9287[idxL].pwrPdg[i][0];
-				maxPwrT4[i] = data_9287[idxL].pwrPdg[i][4];
+				maxPwrT4[i] = data_9287[idxL].pwrPdg[i][intercepts - 1];
 				ath9k_hw_fill_vpd_table(minPwrT4[i], maxPwrT4[i],
 						data_9287[idxL].pwrPdg[i],
 						data_9287[idxL].vpdPdg[i],
@@ -416,7 +415,7 @@ void ath9k_hw_get_gain_boundaries_pdadcs(struct ath_hw *ah,
 		} else if (eeprom_4k) {
 			for (i = 0; i < numXpdGains; i++) {
 				minPwrT4[i] = data_4k[idxL].pwrPdg[i][0];
-				maxPwrT4[i] = data_4k[idxL].pwrPdg[i][4];
+				maxPwrT4[i] = data_4k[idxL].pwrPdg[i][intercepts - 1];
 				ath9k_hw_fill_vpd_table(minPwrT4[i], maxPwrT4[i],
 						data_4k[idxL].pwrPdg[i],
 						data_4k[idxL].vpdPdg[i],
@@ -426,7 +425,7 @@ void ath9k_hw_get_gain_boundaries_pdadcs(struct ath_hw *ah,
 		} else {
 			for (i = 0; i < numXpdGains; i++) {
 				minPwrT4[i] = data_def[idxL].pwrPdg[i][0];
-				maxPwrT4[i] = data_def[idxL].pwrPdg[i][4];
+				maxPwrT4[i] = data_def[idxL].pwrPdg[i][intercepts - 1];
 				ath9k_hw_fill_vpd_table(minPwrT4[i], maxPwrT4[i],
 						data_def[idxL].pwrPdg[i],
 						data_def[idxL].vpdPdg[i],
diff --git a/kernel/drivers/net/wireless/ath/ath9k/init.c b/kernel/drivers/net/wireless/ath/ath9k/init.c
index 2e2b92ba9..bc70ce62b 100644
--- a/kernel/drivers/net/wireless/ath/ath9k/init.c
+++ b/kernel/drivers/net/wireless/ath/ath9k/init.c
@@ -49,6 +49,10 @@ int ath9k_led_blink;
 module_param_named(blink, ath9k_led_blink, int, 0444);
 MODULE_PARM_DESC(blink, "Enable LED blink on activity");
 
+static int ath9k_led_active_high = -1;
+module_param_named(led_active_high, ath9k_led_active_high, int, 0444);
+MODULE_PARM_DESC(led_active_high, "Invert LED polarity");
+
 static int ath9k_btcoex_enable;
 module_param_named(btcoex_enable, ath9k_btcoex_enable, int, 0444);
 MODULE_PARM_DESC(btcoex_enable, "Enable wifi-BT coexistence");
@@ -600,6 +604,9 @@ static int ath9k_init_softc(u16 devid, struct ath_softc *sc,
 	if (ret)
 		return ret;
 
+	if (ath9k_led_active_high != -1)
+		ah->config.led_active_high = ath9k_led_active_high == 1;
+
 	/*
 	 * Enable WLAN/BT RX Antenna diversity only when:
 	 *
@@ -862,8 +869,8 @@ static void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
 			hw->wiphy->interface_modes |=
 					BIT(NL80211_IFTYPE_P2P_DEVICE);
 
-			hw->wiphy->iface_combinations = if_comb;
-			hw->wiphy->n_iface_combinations = ARRAY_SIZE(if_comb);
+		hw->wiphy->iface_combinations = if_comb;
+		hw->wiphy->n_iface_combinations = ARRAY_SIZE(if_comb);
 	}
 
 	hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
diff --git a/kernel/drivers/net/wireless/ath/ath9k/main.c b/kernel/drivers/net/wireless/ath/ath9k/main.c
index d184e682e..8c5d2cf9c 100644
--- a/kernel/drivers/net/wireless/ath/ath9k/main.c
+++ b/kernel/drivers/net/wireless/ath/ath9k/main.c
@@ -1550,13 +1550,13 @@ static int ath9k_sta_state(struct ieee80211_hw *hw,
 	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 	int ret = 0;
 
-	if (old_state == IEEE80211_STA_AUTH &&
-	    new_state == IEEE80211_STA_ASSOC) {
+	if (old_state == IEEE80211_STA_NOTEXIST &&
+	    new_state == IEEE80211_STA_NONE) {
 		ret = ath9k_sta_add(hw, vif, sta);
 		ath_dbg(common, CONFIG,
 			"Add station: %pM\n", sta->addr);
-	} else if (old_state == IEEE80211_STA_ASSOC &&
-		   new_state == IEEE80211_STA_AUTH) {
+	} else if (old_state == IEEE80211_STA_NONE &&
+		   new_state == IEEE80211_STA_NOTEXIST) {
 		ret = ath9k_sta_remove(hw, vif, sta);
 		ath_dbg(common, CONFIG,
 			"Remove station: %pM\n", sta->addr);
diff --git a/kernel/drivers/net/wireless/ath/ath9k/pci.c b/kernel/drivers/net/wireless/ath/ath9k/pci.c
index e6fef1be9..ea7b8c259 100644
--- a/kernel/drivers/net/wireless/ath/ath9k/pci.c
+++ b/kernel/drivers/net/wireless/ath/ath9k/pci.c
@@ -27,8 +27,17 @@ static const struct pci_device_id ath_pci_id_table[] = {
 	{ PCI_VDEVICE(ATHEROS, 0x0023) }, /* PCI   */
 	{ PCI_VDEVICE(ATHEROS, 0x0024) }, /* PCI-E */
 	{ PCI_VDEVICE(ATHEROS, 0x0027) }, /* PCI   */
+
+#ifdef CONFIG_ATH9K_PCOEM
+	/* Mini PCI AR9220 MB92 cards: Compex WLM200NX, Wistron DNMA-92 */
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0029,
+			 PCI_VENDOR_ID_ATHEROS,
+			 0x2096),
+	  .driver_data = ATH9K_PCI_LED_ACT_HI },
+#endif
+
 	{ PCI_VDEVICE(ATHEROS, 0x0029) }, /* PCI   */
-	{ PCI_VDEVICE(ATHEROS, 0x002A) }, /* PCI-E */
 
 #ifdef CONFIG_ATH9K_PCOEM
 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
@@ -76,7 +85,11 @@ static const struct pci_device_id ath_pci_id_table[] = {
 			 0x10CF, /* Fujitsu */
 			 0x1536),
 	  .driver_data = ATH9K_PCI_D3_L1_WAR },
+#endif
 
+	{ PCI_VDEVICE(ATHEROS, 0x002A) }, /* PCI-E */
+
+#ifdef CONFIG_ATH9K_PCOEM
 	/* AR9285 card for Asus */
 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 			 0x002B,