Merge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git

ath.git patches for 4.9. Major changes:

ath9k

* disable RNG by default

14 files changed, 89 insertions, 118 deletions

diff --git a/drivers/net/wireless/ath/ath10k/ahb.c b/drivers/net/wireless/ath/ath10k/ahb.c
index b99ad5df383d..766c63bf05c4 100644
--- a/drivers/net/wireless/ath/ath10k/ahb.c
+++ b/drivers/net/wireless/ath/ath10k/ahb.c
@@ -91,59 +91,37 @@ static int ath10k_ahb_clock_init(struct ath10k *ar)
 {
 	struct ath10k_ahb *ar_ahb = ath10k_ahb_priv(ar);
 	struct device *dev;
-	int ret;
 
 	dev = &ar_ahb->pdev->dev;
 
-	ar_ahb->cmd_clk = clk_get(dev, "wifi_wcss_cmd");
+	ar_ahb->cmd_clk = devm_clk_get(dev, "wifi_wcss_cmd");
 	if (IS_ERR_OR_NULL(ar_ahb->cmd_clk)) {
 		ath10k_err(ar, "failed to get cmd clk: %ld\n",
 			   PTR_ERR(ar_ahb->cmd_clk));
-		ret = ar_ahb->cmd_clk ? PTR_ERR(ar_ahb->cmd_clk) : -ENODEV;
-		goto out;
+		return ar_ahb->cmd_clk ? PTR_ERR(ar_ahb->cmd_clk) : -ENODEV;
 	}
 
-	ar_ahb->ref_clk = clk_get(dev, "wifi_wcss_ref");
+	ar_ahb->ref_clk = devm_clk_get(dev, "wifi_wcss_ref");
 	if (IS_ERR_OR_NULL(ar_ahb->ref_clk)) {
 		ath10k_err(ar, "failed to get ref clk: %ld\n",
 			   PTR_ERR(ar_ahb->ref_clk));
-		ret = ar_ahb->ref_clk ? PTR_ERR(ar_ahb->ref_clk) : -ENODEV;
-		goto err_cmd_clk_put;
+		return ar_ahb->ref_clk ? PTR_ERR(ar_ahb->ref_clk) : -ENODEV;
 	}
 
-	ar_ahb->rtc_clk = clk_get(dev, "wifi_wcss_rtc");
+	ar_ahb->rtc_clk = devm_clk_get(dev, "wifi_wcss_rtc");
 	if (IS_ERR_OR_NULL(ar_ahb->rtc_clk)) {
 		ath10k_err(ar, "failed to get rtc clk: %ld\n",
 			   PTR_ERR(ar_ahb->rtc_clk));
-		ret = ar_ahb->rtc_clk ? PTR_ERR(ar_ahb->rtc_clk) : -ENODEV;
-		goto err_ref_clk_put;
+		return ar_ahb->rtc_clk ? PTR_ERR(ar_ahb->rtc_clk) : -ENODEV;
 	}
 
 	return 0;
-
-err_ref_clk_put:
-	clk_put(ar_ahb->ref_clk);
-
-err_cmd_clk_put:
-	clk_put(ar_ahb->cmd_clk);
-
-out:
-	return ret;
 }
 
 static void ath10k_ahb_clock_deinit(struct ath10k *ar)
 {
 	struct ath10k_ahb *ar_ahb = ath10k_ahb_priv(ar);
 
-	if (!IS_ERR_OR_NULL(ar_ahb->cmd_clk))
-		clk_put(ar_ahb->cmd_clk);
-
-	if (!IS_ERR_OR_NULL(ar_ahb->ref_clk))
-		clk_put(ar_ahb->ref_clk);
-
-	if (!IS_ERR_OR_NULL(ar_ahb->rtc_clk))
-		clk_put(ar_ahb->rtc_clk);
-
 	ar_ahb->cmd_clk = NULL;
 	ar_ahb->ref_clk = NULL;
 	ar_ahb->rtc_clk = NULL;
@@ -213,92 +191,51 @@ static int ath10k_ahb_rst_ctrl_init(struct ath10k *ar)
 {
 	struct ath10k_ahb *ar_ahb = ath10k_ahb_priv(ar);
 	struct device *dev;
-	int ret;
 
 	dev = &ar_ahb->pdev->dev;
 
-	ar_ahb->core_cold_rst = reset_control_get(dev, "wifi_core_cold");
-	if (IS_ERR_OR_NULL(ar_ahb->core_cold_rst)) {
+	ar_ahb->core_cold_rst = devm_reset_control_get(dev, "wifi_core_cold");
+	if (IS_ERR(ar_ahb->core_cold_rst)) {
 		ath10k_err(ar, "failed to get core cold rst ctrl: %ld\n",
 			   PTR_ERR(ar_ahb->core_cold_rst));
-		ret = ar_ahb->core_cold_rst ?
-			PTR_ERR(ar_ahb->core_cold_rst) : -ENODEV;
-		goto out;
+		return PTR_ERR(ar_ahb->core_cold_rst);
 	}
 
-	ar_ahb->radio_cold_rst = reset_control_get(dev, "wifi_radio_cold");
-	if (IS_ERR_OR_NULL(ar_ahb->radio_cold_rst)) {
+	ar_ahb->radio_cold_rst = devm_reset_control_get(dev, "wifi_radio_cold");
+	if (IS_ERR(ar_ahb->radio_cold_rst)) {
 		ath10k_err(ar, "failed to get radio cold rst ctrl: %ld\n",
 			   PTR_ERR(ar_ahb->radio_cold_rst));
-		ret = ar_ahb->radio_cold_rst ?
-			PTR_ERR(ar_ahb->radio_cold_rst) : -ENODEV;
-		goto err_core_cold_rst_put;
+		return PTR_ERR(ar_ahb->radio_cold_rst);
 	}
 
-	ar_ahb->radio_warm_rst = reset_control_get(dev, "wifi_radio_warm");
-	if (IS_ERR_OR_NULL(ar_ahb->radio_warm_rst)) {
+	ar_ahb->radio_warm_rst = devm_reset_control_get(dev, "wifi_radio_warm");
+	if (IS_ERR(ar_ahb->radio_warm_rst)) {
 		ath10k_err(ar, "failed to get radio warm rst ctrl: %ld\n",
 			   PTR_ERR(ar_ahb->radio_warm_rst));
-		ret = ar_ahb->radio_warm_rst ?
-			PTR_ERR(ar_ahb->radio_warm_rst) : -ENODEV;
-		goto err_radio_cold_rst_put;
+		return PTR_ERR(ar_ahb->radio_warm_rst);
 	}
 
-	ar_ahb->radio_srif_rst = reset_control_get(dev, "wifi_radio_srif");
-	if (IS_ERR_OR_NULL(ar_ahb->radio_srif_rst)) {
+	ar_ahb->radio_srif_rst = devm_reset_control_get(dev, "wifi_radio_srif");
+	if (IS_ERR(ar_ahb->radio_srif_rst)) {
 		ath10k_err(ar, "failed to get radio srif rst ctrl: %ld\n",
 			   PTR_ERR(ar_ahb->radio_srif_rst));
-		ret = ar_ahb->radio_srif_rst ?
-			PTR_ERR(ar_ahb->radio_srif_rst) : -ENODEV;
-		goto err_radio_warm_rst_put;
+		return PTR_ERR(ar_ahb->radio_srif_rst);
 	}
 
-	ar_ahb->cpu_init_rst = reset_control_get(dev, "wifi_cpu_init");
-	if (IS_ERR_OR_NULL(ar_ahb->cpu_init_rst)) {
+	ar_ahb->cpu_init_rst = devm_reset_control_get(dev, "wifi_cpu_init");
+	if (IS_ERR(ar_ahb->cpu_init_rst)) {
 		ath10k_err(ar, "failed to get cpu init rst ctrl: %ld\n",
 			   PTR_ERR(ar_ahb->cpu_init_rst));
-		ret = ar_ahb->cpu_init_rst ?
-			PTR_ERR(ar_ahb->cpu_init_rst) : -ENODEV;
-		goto err_radio_srif_rst_put;
+		return PTR_ERR(ar_ahb->cpu_init_rst);
 	}
 
 	return 0;
-
-err_radio_srif_rst_put:
-	reset_control_put(ar_ahb->radio_srif_rst);
-
-err_radio_warm_rst_put:
-	reset_control_put(ar_ahb->radio_warm_rst);
-
-err_radio_cold_rst_put:
-	reset_control_put(ar_ahb->radio_cold_rst);
-
-err_core_cold_rst_put:
-	reset_control_put(ar_ahb->core_cold_rst);
-
-out:
-	return ret;
 }
 
 static void ath10k_ahb_rst_ctrl_deinit(struct ath10k *ar)
 {
 	struct ath10k_ahb *ar_ahb = ath10k_ahb_priv(ar);
 
-	if (!IS_ERR_OR_NULL(ar_ahb->core_cold_rst))
-		reset_control_put(ar_ahb->core_cold_rst);
-
-	if (!IS_ERR_OR_NULL(ar_ahb->radio_cold_rst))
-		reset_control_put(ar_ahb->radio_cold_rst);
-
-	if (!IS_ERR_OR_NULL(ar_ahb->radio_warm_rst))
-		reset_control_put(ar_ahb->radio_warm_rst);
-
-	if (!IS_ERR_OR_NULL(ar_ahb->radio_srif_rst))
-		reset_control_put(ar_ahb->radio_srif_rst);
-
-	if (!IS_ERR_OR_NULL(ar_ahb->cpu_init_rst))
-		reset_control_put(ar_ahb->cpu_init_rst);
-
 	ar_ahb->core_cold_rst = NULL;
 	ar_ahb->radio_cold_rst = NULL;
 	ar_ahb->radio_warm_rst = NULL;
@@ -572,6 +509,7 @@ static int ath10k_ahb_resource_init(struct ath10k *ar)
 	ar_ahb->irq = platform_get_irq_byname(pdev, "legacy");
 	if (ar_ahb->irq < 0) {
 		ath10k_err(ar, "failed to get irq number: %d\n", ar_ahb->irq);
+		ret = ar_ahb->irq;
 		goto err_clock_deinit;
 	}
 
@@ -850,6 +788,7 @@ static int ath10k_ahb_probe(struct platform_device *pdev)
 	chip_id = ath10k_ahb_soc_read32(ar, SOC_CHIP_ID_ADDRESS);
 	if (chip_id == 0xffffffff) {
 		ath10k_err(ar, "failed to get chip id\n");
+		ret = -ENODEV;
 		goto err_halt_device;
 	}
 
diff --git a/drivers/net/wireless/ath/ath10k/ce.c b/drivers/net/wireless/ath/ath10k/ce.c
index 65d8d714e917..0b4d79659884 100644
--- a/drivers/net/wireless/ath/ath10k/ce.c
+++ b/drivers/net/wireless/ath/ath10k/ce.c
@@ -39,7 +39,7 @@
  * chooses what to send (buffer address, length). The destination
  * side keeps a supply of "anonymous receive buffers" available and
  * it handles incoming data as it arrives (when the destination
- * recieves an interrupt).
+ * receives an interrupt).
  *
  * The sender may send a simple buffer (address/length) or it may
  * send a small list of buffers.  When a small list is sent, hardware
@@ -433,6 +433,13 @@ void ath10k_ce_rx_update_write_idx(struct ath10k_ce_pipe *pipe, u32 nentries)
 	unsigned int nentries_mask = dest_ring->nentries_mask;
 	unsigned int write_index = dest_ring->write_index;
 	u32 ctrl_addr = pipe->ctrl_addr;
+	u32 cur_write_idx = ath10k_ce_dest_ring_write_index_get(ar, ctrl_addr);
+
+	/* Prevent CE ring stuck issue that will occur when ring is full.
+	 * Make sure that write index is 1 less than read index.
+	 */
+	if ((cur_write_idx + nentries)  == dest_ring->sw_index)
+		nentries -= 1;
 
 	write_index = CE_RING_IDX_ADD(nentries_mask, write_index, nentries);
 	ath10k_ce_dest_ring_write_index_set(ar, ctrl_addr, write_index);
diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index 3a8984ba9f74..21ae8d663e67 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -68,6 +68,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
 			.board_ext_size = QCA988X_BOARD_EXT_DATA_SZ,
 		},
 		.hw_ops = &qca988x_ops,
+		.decap_align_bytes = 4,
 	},
 	{
 		.id = QCA9887_HW_1_0_VERSION,
@@ -87,6 +88,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
 			.board_ext_size = QCA9887_BOARD_EXT_DATA_SZ,
 		},
 		.hw_ops = &qca988x_ops,
+		.decap_align_bytes = 4,
 	},
 	{
 		.id = QCA6174_HW_2_1_VERSION,
@@ -105,6 +107,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
 			.board_ext_size = QCA6174_BOARD_EXT_DATA_SZ,
 		},
 		.hw_ops = &qca988x_ops,
+		.decap_align_bytes = 4,
 	},
 	{
 		.id = QCA6174_HW_2_1_VERSION,
@@ -123,6 +126,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
 			.board_ext_size = QCA6174_BOARD_EXT_DATA_SZ,
 		},
 		.hw_ops = &qca988x_ops,
+		.decap_align_bytes = 4,
 	},
 	{
 		.id = QCA6174_HW_3_0_VERSION,
@@ -141,6 +145,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
 			.board_ext_size = QCA6174_BOARD_EXT_DATA_SZ,
 		},
 		.hw_ops = &qca988x_ops,
+		.decap_align_bytes = 4,
 	},
 	{
 		.id = QCA6174_HW_3_2_VERSION,
@@ -160,6 +165,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
 			.board_ext_size = QCA6174_BOARD_EXT_DATA_SZ,
 		},
 		.hw_ops = &qca988x_ops,
+		.decap_align_bytes = 4,
 	},
 	{
 		.id = QCA99X0_HW_2_0_DEV_VERSION,
@@ -184,6 +190,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
 		},
 		.sw_decrypt_mcast_mgmt = true,
 		.hw_ops = &qca99x0_ops,
+		.decap_align_bytes = 1,
 	},
 	{
 		.id = QCA9984_HW_1_0_DEV_VERSION,
@@ -208,6 +215,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
 		},
 		.sw_decrypt_mcast_mgmt = true,
 		.hw_ops = &qca99x0_ops,
+		.decap_align_bytes = 1,
 	},
 	{
 		.id = QCA9888_HW_2_0_DEV_VERSION,
@@ -231,6 +239,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
 		},
 		.sw_decrypt_mcast_mgmt = true,
 		.hw_ops = &qca99x0_ops,
+		.decap_align_bytes = 1,
 	},
 	{
 		.id = QCA9377_HW_1_0_DEV_VERSION,
@@ -249,6 +258,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
 			.board_ext_size = QCA9377_BOARD_EXT_DATA_SZ,
 		},
 		.hw_ops = &qca988x_ops,
+		.decap_align_bytes = 4,
 	},
 	{
 		.id = QCA9377_HW_1_1_DEV_VERSION,
@@ -267,6 +277,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
 			.board_ext_size = QCA9377_BOARD_EXT_DATA_SZ,
 		},
 		.hw_ops = &qca988x_ops,
+		.decap_align_bytes = 4,
 	},
 	{
 		.id = QCA4019_HW_1_0_DEV_VERSION,
@@ -292,6 +303,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
 		},
 		.sw_decrypt_mcast_mgmt = true,
 		.hw_ops = &qca99x0_ops,
+		.decap_align_bytes = 1,
 	},
 };
 
@@ -1960,7 +1972,10 @@ 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;
+	if (ar->max_num_vdevs >= 64)
+		ar->free_vdev_map = 0xFFFFFFFFFFFFFFFFLL;
+	else
+		ar->free_vdev_map = (1LL << ar->max_num_vdevs) - 1;
 
 	INIT_LIST_HEAD(&ar->arvifs);
 
diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index 6ec9495bcc04..dda49af1eb74 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -201,10 +201,10 @@ struct ath10k_fw_stats_pdev {
 
 	/* PDEV stats */
 	s32 ch_noise_floor;
-	u32 tx_frame_count;
-	u32 rx_frame_count;
-	u32 rx_clear_count;
-	u32 cycle_count;
+	u32 tx_frame_count; /* Cycles spent transmitting frames */
+	u32 rx_frame_count; /* Cycles spent receiving frames */
+	u32 rx_clear_count; /* Total channel busy time, evidently */
+	u32 cycle_count; /* Total on-channel time */
 	u32 phy_err_count;
 	u32 chan_tx_power;
 	u32 ack_rx_bad;
diff --git a/drivers/net/wireless/ath/ath10k/htt.h b/drivers/net/wireless/ath/ath10k/htt.h
index 98c14247021b..0d2ed09f202b 100644
--- a/drivers/net/wireless/ath/ath10k/htt.h
+++ b/drivers/net/wireless/ath/ath10k/htt.h
@@ -595,7 +595,7 @@ enum htt_rx_mpdu_status {
 	/* only accept EAPOL frames */
 	HTT_RX_IND_MPDU_STATUS_UNAUTH_PEER,
 	HTT_RX_IND_MPDU_STATUS_OUT_OF_SYNC,
-	/* Non-data in promiscous mode */
+	/* Non-data in promiscuous mode */
 	HTT_RX_IND_MPDU_STATUS_MGMT_CTRL,
 	HTT_RX_IND_MPDU_STATUS_TKIP_MIC_ERR,
 	HTT_RX_IND_MPDU_STATUS_DECRYPT_ERR,
@@ -900,7 +900,7 @@ struct htt_rx_in_ord_ind {
  *     Purpose: indicate how many 32-bit integers follow the message header
  *   - NUM_CHARS
  *     Bits 31:16
- *     Purpose: indicate how many 8-bit charaters follow the series of integers
+ *     Purpose: indicate how many 8-bit characters follow the series of integers
  */
 struct htt_rx_test {
 	u8 num_ints;
@@ -1042,10 +1042,10 @@ struct htt_dbg_stats_wal_tx_stats {
 	/* illegal rate phy errors  */
 	__le32 illgl_rate_phy_err;
 
-	/* wal pdev continous xretry */
+	/* wal pdev continuous xretry */
 	__le32 pdev_cont_xretry;
 
-	/* wal pdev continous xretry */
+	/* wal pdev continuous xretry */
 	__le32 pdev_tx_timeout;
 
 	/* wal pdev resets  */
diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index a3785a9aa843..0b4c1562420f 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -1103,6 +1103,7 @@ static void *ath10k_htt_rx_h_find_rfc1042(struct ath10k *ar,
 	size_t hdr_len, crypto_len;
 	void *rfc1042;
 	bool is_first, is_last, is_amsdu;
+	int bytes_aligned = ar->hw_params.decap_align_bytes;
 
 	rxd = (void *)msdu->data - sizeof(*rxd);
 	hdr = (void *)rxd->rx_hdr_status;
@@ -1119,8 +1120,8 @@ static void *ath10k_htt_rx_h_find_rfc1042(struct ath10k *ar,
 		hdr_len = ieee80211_hdrlen(hdr->frame_control);
 		crypto_len = ath10k_htt_rx_crypto_param_len(ar, enctype);
 
-		rfc1042 += round_up(hdr_len, 4) +
-			   round_up(crypto_len, 4);
+		rfc1042 += round_up(hdr_len, bytes_aligned) +
+			   round_up(crypto_len, bytes_aligned);
 	}
 
 	if (is_amsdu)
diff --git a/drivers/net/wireless/ath/ath10k/hw.c b/drivers/net/wireless/ath/ath10k/hw.c
index c2ecb9bd824a..675e75d66db2 100644
--- a/drivers/net/wireless/ath/ath10k/hw.c
+++ b/drivers/net/wireless/ath/ath10k/hw.c
@@ -85,7 +85,7 @@ const struct ath10k_hw_regs qca99x0_regs = {
 	.ce7_base_address			= 0x0004bc00,
 	/* Note: qca99x0 supports upto 12 Copy Engines. Other than address of
 	 * CE0 and CE1 no other copy engine is directly referred in the code.
-	 * It is not really neccessary to assign address for newly supported
+	 * It is not really necessary to assign address for newly supported
 	 * CEs in this address table.
 	 *	Copy Engine		Address
 	 *	CE8			0x0004c000
diff --git a/drivers/net/wireless/ath/ath10k/hw.h b/drivers/net/wireless/ath/ath10k/hw.h
index 308e423d4b99..6038b7486f1d 100644
--- a/drivers/net/wireless/ath/ath10k/hw.h
+++ b/drivers/net/wireless/ath/ath10k/hw.h
@@ -284,7 +284,7 @@ void ath10k_hw_fill_survey_time(struct ath10k *ar, struct survey_info *survey,
 #define QCA_REV_9377(ar) ((ar)->hw_rev == ATH10K_HW_QCA9377)
 #define QCA_REV_40XX(ar) ((ar)->hw_rev == ATH10K_HW_QCA4019)
 
-/* Known pecularities:
+/* Known peculiarities:
  *  - raw appears in nwifi decap, raw and nwifi appear in ethernet decap
  *  - raw have FCS, nwifi doesn't
  *  - ethernet frames have 802.11 header decapped and parts (base hdr, cipher
@@ -408,6 +408,9 @@ struct ath10k_hw_params {
 	bool sw_decrypt_mcast_mgmt;
 
 	const struct ath10k_hw_ops *hw_ops;
+
+	/* Number of bytes used for alignment in rx_hdr_status of rx desc. */
+	int decap_align_bytes;
 };
 
 struct htt_rx_desc;
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 0a44dab5a287..76297d69f1ed 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -2793,7 +2793,7 @@ static void ath10k_bss_disassoc(struct ieee80211_hw *hw,
 
 	ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
 	if (ret)
-		ath10k_warn(ar, "faield to down vdev %i: %d\n",
+		ath10k_warn(ar, "failed to down vdev %i: %d\n",
 			    arvif->vdev_id, ret);
 
 	arvif->def_wep_key_idx = -1;
diff --git a/drivers/net/wireless/ath/ath10k/targaddrs.h b/drivers/net/wireless/ath/ath10k/targaddrs.h
index aaf53a81e78b..a47cab44d9c8 100644
--- a/drivers/net/wireless/ath/ath10k/targaddrs.h
+++ b/drivers/net/wireless/ath/ath10k/targaddrs.h
@@ -405,7 +405,7 @@ Fw Mode/SubMode Mask
  * 1. target firmware would check magic number and if it's a match, firmware
  *    would consider the bits[0:15] are valid and base on that to calculate
  *    the end of DRAM. Early allocation would be located at that area and
- *    may be reclaimed when necesary
+ *    may be reclaimed when necessary
  * 2. if no magic number is found, early allocation would happen at "_end"
  *    symbol of ROM which is located before the app-data and might NOT be
  *    re-claimable. If this is adopted, link script should keep this in
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 38993d72f5e6..54df425bb0fc 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -3514,6 +3514,12 @@ void ath10k_wmi_event_host_swba(struct ath10k *ar, struct sk_buff *skb)
 			continue;
 		}
 
+		/* mac80211 would have already asked us to stop beaconing and
+		 * bring the vdev down, so continue in that case
+		 */
+		if (!arvif->is_up)
+			continue;
+
 		/* There are no completions for beacons so wait for next SWBA
 		 * before telling mac80211 to decrement CSA counter
 		 *
diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index 48e04b92e231..1b243c899bef 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -55,7 +55,7 @@
  *    type.
  *
  * 6. Comment each parameter part of the WMI command/event structure by
- *    using the 2 stars at the begining of C comment instead of one star to
+ *    using the 2 stars at the beginning of C comment instead of one star to
  *    enable HTML document generation using Doxygen.
  *
  */
@@ -2087,7 +2087,7 @@ struct wmi_resource_config {
 	 * In offload mode target supports features like WOW, chatter and
 	 * other protocol offloads. In order to support them some
 	 * functionalities like reorder buffering, PN checking need to be
-	 * done in target. This determines maximum number of peers suported
+	 * done in target. This determines maximum number of peers supported
 	 * by target in offload mode
 	 */
 	__le32 num_offload_peers;
@@ -2268,7 +2268,7 @@ struct wmi_resource_config {
 	 * Max. number of Tx fragments per MSDU
 	 *  This parameter controls the max number of Tx fragments per MSDU.
 	 *  This is sent by the target as part of the WMI_SERVICE_READY event
-	 *  and is overriden by the OS shim as required.
+	 *  and is overridden by the OS shim as required.
 	 */
 	__le32 max_frag_entries;
 } __packed;
@@ -2450,7 +2450,7 @@ struct wmi_resource_config_10x {
 	 * Max. number of Tx fragments per MSDU
 	 *  This parameter controls the max number of Tx fragments per MSDU.
 	 *  This is sent by the target as part of the WMI_SERVICE_READY event
-	 *  and is overriden by the OS shim as required.
+	 *  and is overridden by the OS shim as required.
 	 */
 	__le32 max_frag_entries;
 } __packed;
@@ -2744,7 +2744,7 @@ struct wmi_init_cmd {
 	struct wmi_host_mem_chunks mem_chunks;
 } __packed;
 
-/* _10x stucture is from 10.X FW API */
+/* _10x structure is from 10.X FW API */
 struct wmi_init_cmd_10x {
 	struct wmi_resource_config_10x resource_config;
 	struct wmi_host_mem_chunks mem_chunks;
@@ -3967,7 +3967,7 @@ struct wmi_pdev_stats_tx {
 	/* illegal rate phy errors  */
 	__le32 illgl_rate_phy_err;
 
-	/* wal pdev continous xretry */
+	/* wal pdev continuous xretry */
 	__le32 pdev_cont_xretry;
 
 	/* wal pdev continous xretry */
@@ -4222,10 +4222,10 @@ struct wmi_10_2_stats_event {
  */
 struct wmi_pdev_stats_base {
 	__le32 chan_nf;
-	__le32 tx_frame_count;
-	__le32 rx_frame_count;
-	__le32 rx_clear_count;
-	__le32 cycle_count;
+	__le32 tx_frame_count; /* Cycles spent transmitting frames */
+	__le32 rx_frame_count; /* Cycles spent receiving frames */
+	__le32 rx_clear_count; /* Total channel busy time, evidently */
+	__le32 cycle_count; /* Total on-channel time */
 	__le32 phy_err_count;
 	__le32 chan_tx_pwr;
 } __packed;
@@ -4461,9 +4461,9 @@ struct wmi_vdev_start_request_cmd {
 	__le32 flags;
 	/* ssid field. Only valid for AP/GO/IBSS/BTAmp VDEV type. */
 	struct wmi_ssid ssid;
-	/* beacon/probe reponse xmit rate. Applicable for SoftAP. */
+	/* beacon/probe response xmit rate. Applicable for SoftAP. */
 	__le32 bcn_tx_rate;
-	/* beacon/probe reponse xmit power. Applicable for SoftAP. */
+	/* beacon/probe response xmit power. Applicable for SoftAP. */
 	__le32 bcn_tx_power;
 	/* number of p2p NOA descriptor(s) from scan entry */
 	__le32 num_noa_descriptors;
@@ -4691,7 +4691,7 @@ enum wmi_vdev_param {
 	WMI_VDEV_PARAM_BEACON_INTERVAL,
 	/* Listen interval in TUs */
 	WMI_VDEV_PARAM_LISTEN_INTERVAL,
-	/* muticast rate in Mbps */
+	/* multicast rate in Mbps */
 	WMI_VDEV_PARAM_MULTICAST_RATE,
 	/* management frame rate in Mbps */
 	WMI_VDEV_PARAM_MGMT_TX_RATE,
@@ -4822,7 +4822,7 @@ enum wmi_10x_vdev_param {
 	WMI_10X_VDEV_PARAM_BEACON_INTERVAL,
 	/* Listen interval in TUs */
 	WMI_10X_VDEV_PARAM_LISTEN_INTERVAL,
-	/* muticast rate in Mbps */
+	/* multicast rate in Mbps */
 	WMI_10X_VDEV_PARAM_MULTICAST_RATE,
 	/* management frame rate in Mbps */
 	WMI_10X_VDEV_PARAM_MGMT_TX_RATE,
@@ -5067,7 +5067,7 @@ struct wmi_vdev_simple_event {
 } __packed;
 
 /* VDEV start response status codes */
-/* VDEV succesfully started */
+/* VDEV successfully started */
 #define WMI_INIFIED_VDEV_START_RESPONSE_STATUS_SUCCESS	0x0
 
 /* requested VDEV not found */
@@ -5383,7 +5383,7 @@ enum wmi_sta_ps_param_pspoll_count {
 #define WMI_UAPSD_AC_TYPE_TRIG 1
 
 #define WMI_UAPSD_AC_BIT_MASK(ac, type) \
-	((type ==  WMI_UAPSD_AC_TYPE_DELI) ? (1 << (ac << 1)) : (1 << ((ac << 1) + 1)))
+	(type == WMI_UAPSD_AC_TYPE_DELI ? 1 << (ac << 1) : 1 << ((ac << 1) + 1))
 
 enum wmi_sta_ps_param_uapsd {
 	WMI_STA_PS_UAPSD_AC0_DELIVERY_EN = (1 << 0),
diff --git a/drivers/net/wireless/ath/ath6kl/wmi.c b/drivers/net/wireless/ath/ath6kl/wmi.c
index b8cf04d11975..3fd1cc98fd2f 100644
--- a/drivers/net/wireless/ath/ath6kl/wmi.c
+++ b/drivers/net/wireless/ath/ath6kl/wmi.c
@@ -3520,7 +3520,7 @@ int ath6kl_wmi_set_pvb_cmd(struct wmi *wmi, u8 if_idx, u16 aid,
 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_AP_SET_PVB_CMDID,
 				  NO_SYNC_WMIFLAG);
 
-	return 0;
+	return ret;
 }
 
 int ath6kl_wmi_set_rx_frame_format_cmd(struct wmi *wmi, u8 if_idx,
diff --git a/drivers/net/wireless/ath/ath9k/Kconfig b/drivers/net/wireless/ath/ath9k/Kconfig
index f68cb00450e0..8f231c67dd51 100644
--- a/drivers/net/wireless/ath/ath9k/Kconfig
+++ b/drivers/net/wireless/ath/ath9k/Kconfig
@@ -180,7 +180,7 @@ config ATH9K_HTC_DEBUGFS
 config ATH9K_HWRNG
 	bool "Random number generator support"
 	depends on ATH9K && (HW_RANDOM = y || HW_RANDOM = ATH9K)
-	default y
+	default n
 	---help---
 	  This option incorporates the ADC register output as a source of
 	  randomness into Linux entropy pool (/dev/urandom and /dev/random)