[PATCH AUTOSEL 5.4 003/459] ath10k: Fix qmi init error handling

[PATCH AUTOSEL 5.4 003/459] ath10k: Fix qmi init error handling

[Sasha Levin]

From: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>

[ Upstream commit f8a595a87e93a33a10879f4b856be818d2f53c84 ]

When ath10k_qmi_init() fails, the error handling does not free the irq
resources, which causes an issue if we EPROBE_DEFER as we'll attempt to
(re-)register irqs which are already registered.

Fix this by doing a power off since we just powered on the hardware, and
freeing the irqs as error handling.

Fixes: ba94c753ccb4 ("ath10k: add QMI message handshake for wcn3990 client")
Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath10k/snoc.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/snoc.c b/drivers/net/wireless/ath/ath10k/snoc.c
index fc15a0037f0e6..63607c3b8e818 100644
--- a/drivers/net/wireless/ath/ath10k/snoc.c
+++ b/drivers/net/wireless/ath/ath10k/snoc.c
@@ -1729,13 +1729,16 @@ static int ath10k_snoc_probe(struct platform_device *pdev)
 	ret = ath10k_qmi_init(ar, msa_size);
 	if (ret) {
 		ath10k_warn(ar, "failed to register wlfw qmi client: %d\n", ret);
-		goto err_core_destroy;
+		goto err_power_off;
 	}
 
 	ath10k_dbg(ar, ATH10K_DBG_SNOC, "snoc probe\n");
 
 	return 0;
 
+err_power_off:
+	ath10k_hw_power_off(ar);
+
 err_free_irq:
 	ath10k_snoc_free_irq(ar);
 
-- 
2.20.1

[PATCH AUTOSEL 5.4 004/459] wil6210: fix break that is never reached because of zero'ing of a retry counter

[Sasha Levin]

From: Colin Ian King <colin.king@canonical.com>

[ Upstream commit 5b1413f00b5beb9f5fed94e43ea0c497d5db9633 ]

There is a check on the retry counter invalid_buf_id_retry that is always
false because invalid_buf_id_retry is initialized to zero on each iteration
of a while-loop.  Fix this by initializing the retry counter before the
while-loop starts.

Addresses-Coverity: ("Logically dead code")
Fixes: b4a967b7d0f5 ("wil6210: reset buff id in status message after completion")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/wil6210/txrx_edma.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/wil6210/txrx_edma.c b/drivers/net/wireless/ath/wil6210/txrx_edma.c
index 04d576deae72c..6cb0d7bcfe765 100644
--- a/drivers/net/wireless/ath/wil6210/txrx_edma.c
+++ b/drivers/net/wireless/ath/wil6210/txrx_edma.c
@@ -880,6 +880,7 @@ static struct sk_buff *wil_sring_reap_rx_edma(struct wil6210_priv *wil,
 	u8 data_offset;
 	struct wil_rx_status_extended *s;
 	u16 sring_idx = sring - wil->srings;
+	int invalid_buff_id_retry;
 
 	BUILD_BUG_ON(sizeof(struct wil_rx_status_extended) > sizeof(skb->cb));
 
@@ -893,9 +894,9 @@ static struct sk_buff *wil_sring_reap_rx_edma(struct wil6210_priv *wil,
 	/* Extract the buffer ID from the status message */
 	buff_id = le16_to_cpu(wil_rx_status_get_buff_id(msg));
 
+	invalid_buff_id_retry = 0;
 	while (!buff_id) {
 		struct wil_rx_status_extended *s;
-		int invalid_buff_id_retry = 0;
 
 		wil_dbg_txrx(wil,
 			     "buff_id is not updated yet by HW, (swhead 0x%x)\n",
-- 
2.20.1

[PATCH AUTOSEL 5.4 020/459] brcmfmac: Fix memory leak in brcmf_p2p_create_p2pdev()

[Sasha Levin]

From: Navid Emamdoost <navid.emamdoost@gmail.com>

[ Upstream commit 5cc509aa83c6acd2c5cd94f99065c39d2bd0a490 ]

In the implementation of brcmf_p2p_create_p2pdev() the allocated memory
for p2p_vif is leaked when the mac address is the same as primary
interface. To fix this, go to error path to release p2p_vif via
brcmf_free_vif().

Fixes: cb746e47837a ("brcmfmac: check p2pdev mac address uniqueness")
Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c
index 7ba9f6a686459..1f5deea5a288e 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c
@@ -2092,7 +2092,8 @@ static struct wireless_dev *brcmf_p2p_create_p2pdev(struct brcmf_p2p_info *p2p,
 	/* firmware requires unique mac address for p2pdev interface */
 	if (addr && ether_addr_equal(addr, pri_ifp->mac_addr)) {
 		bphy_err(drvr, "discovery vif must be different from primary interface\n");
-		return ERR_PTR(-EINVAL);
+		err = -EINVAL;
+		goto fail;
 	}
 
 	brcmf_p2p_generate_bss_mac(p2p, addr);
-- 
2.20.1

[PATCH AUTOSEL 5.4 021/459] brcmfmac: Fix use after free in brcmf_sdio_readframes()

[Sasha Levin]

From: Dan Carpenter <dan.carpenter@oracle.com>

[ Upstream commit 216b44000ada87a63891a8214c347e05a4aea8fe ]

The brcmu_pkt_buf_free_skb() function frees "pkt" so it leads to a
static checker warning:

    drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c:1974 brcmf_sdio_readframes()
    error: dereferencing freed memory 'pkt'

It looks like there was supposed to be a continue after we free "pkt".

Fixes: 4754fceeb9a6 ("brcmfmac: streamline SDIO read frame routine")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
index 264ad63232f87..1dea0178832ea 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
@@ -1935,6 +1935,7 @@ static uint brcmf_sdio_readframes(struct brcmf_sdio *bus, uint maxframes)
 					       BRCMF_SDIO_FT_NORMAL)) {
 				rd->len = 0;
 				brcmu_pkt_buf_free_skb(pkt);
+				continue;
 			}
 			bus->sdcnt.rx_readahead_cnt++;
 			if (rd->len != roundup(rd_new.len, 16)) {
-- 
2.20.1

[PATCH AUTOSEL 5.4 092/459] ath10k: Correct the DMA direction for management tx buffers

[Sasha Levin]

From: Rakesh Pillai <pillair@codeaurora.org>

[ Upstream commit 6ba8b3b6bd772f575f7736c8fd893c6981fcce16 ]

The management packets, send to firmware via WMI, are
mapped using the direction DMA_TO_DEVICE. Currently in
case of wmi cleanup, these buffers are being unmapped
using an incorrect DMA direction. This can cause unwanted
behavior when the host driver is handling a restart
of the wlan firmware.

We might see a trace like below

[<ffffff8008098b18>] __dma_inv_area+0x28/0x58
[<ffffff8001176734>] ath10k_wmi_mgmt_tx_clean_up_pending+0x60/0xb0 [ath10k_core]
[<ffffff80088c7c50>] idr_for_each+0x78/0xe4
[<ffffff80011766a4>] ath10k_wmi_detach+0x4c/0x7c [ath10k_core]
[<ffffff8001163d7c>] ath10k_core_stop+0x58/0x68 [ath10k_core]
[<ffffff800114fb74>] ath10k_halt+0xec/0x13c [ath10k_core]
[<ffffff8001165110>] ath10k_core_restart+0x11c/0x1a8 [ath10k_core]
[<ffffff80080c36bc>] process_one_work+0x16c/0x31c

Fix the incorrect DMA direction during the wmi
management tx buffer cleanup.

Tested HW: WCN3990
Tested FW: WLAN.HL.3.1-00784-QCAHLSWMTPLZ-1

Fixes: dc405152bb6 ("ath10k: handle mgmt tx completion event")
Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath10k/wmi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 4f707c6394bba..90f1197a6ad84 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -9422,7 +9422,7 @@ static int ath10k_wmi_mgmt_tx_clean_up_pending(int msdu_id, void *ptr,
 
 	msdu = pkt_addr->vaddr;
 	dma_unmap_single(ar->dev, pkt_addr->paddr,
-			 msdu->len, DMA_FROM_DEVICE);
+			 msdu->len, DMA_TO_DEVICE);
 	ieee80211_free_txskb(ar->hw, msdu);
 
 	return 0;
-- 
2.20.1

[PATCH AUTOSEL 5.4 093/459] rtw88: fix rate mask for 1SS chip

[Sasha Levin]

From: Ping-Ke Shih <pkshih@realtek.com>

[ Upstream commit 35a68fa5f96a80797e11b6952a47c5a84939a7bf ]

The rate mask is used to tell firmware the supported rate depends on
negotiation. We loop 2 times for all VHT/HT 2SS rate mask first, and then
only keep the part according to chip's NSS.

This commit fixes the logic error of '&' operations for VHT/HT rate, and
we should run this logic before adding legacy rate.

To access HT MCS map, index 0/1 represent MCS 0-7/8-15 respectively. Use
NL80211_BAND_xxx is incorrect, so fix it as well.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Reviewed-by: Chris Chiu <chiu@endlessm.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/realtek/rtw88/main.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtw88/main.c b/drivers/net/wireless/realtek/rtw88/main.c
index 806af37192bc2..88e2252bf8a2b 100644
--- a/drivers/net/wireless/realtek/rtw88/main.c
+++ b/drivers/net/wireless/realtek/rtw88/main.c
@@ -556,8 +556,8 @@ void rtw_update_sta_info(struct rtw_dev *rtwdev, struct rtw_sta_info *si)
 		if (sta->vht_cap.cap & IEEE80211_VHT_CAP_SHORT_GI_80)
 			is_support_sgi = true;
 	} else if (sta->ht_cap.ht_supported) {
-		ra_mask |= (sta->ht_cap.mcs.rx_mask[NL80211_BAND_5GHZ] << 20) |
-			   (sta->ht_cap.mcs.rx_mask[NL80211_BAND_2GHZ] << 12);
+		ra_mask |= (sta->ht_cap.mcs.rx_mask[1] << 20) |
+			   (sta->ht_cap.mcs.rx_mask[0] << 12);
 		if (sta->ht_cap.cap & IEEE80211_HT_CAP_RX_STBC)
 			stbc_en = HT_STBC_EN;
 		if (sta->ht_cap.cap & IEEE80211_HT_CAP_LDPC_CODING)
@@ -567,6 +567,9 @@ void rtw_update_sta_info(struct rtw_dev *rtwdev, struct rtw_sta_info *si)
 			is_support_sgi = true;
 	}
 
+	if (efuse->hw_cap.nss == 1)
+		ra_mask &= RA_MASK_VHT_RATES_1SS | RA_MASK_HT_RATES_1SS;
+
 	if (hal->current_band_type == RTW_BAND_5G) {
 		ra_mask |= (u64)sta->supp_rates[NL80211_BAND_5GHZ] << 4;
 		if (sta->vht_cap.vht_supported) {
@@ -600,11 +603,6 @@ void rtw_update_sta_info(struct rtw_dev *rtwdev, struct rtw_sta_info *si)
 		wireless_set = 0;
 	}
 
-	if (efuse->hw_cap.nss == 1) {
-		ra_mask &= RA_MASK_VHT_RATES_1SS;
-		ra_mask &= RA_MASK_HT_RATES_1SS;
-	}
-
 	switch (sta->bandwidth) {
 	case IEEE80211_STA_RX_BW_80:
 		bw_mode = RTW_CHANNEL_WIDTH_80;
-- 
2.20.1

[PATCH AUTOSEL 5.4 094/459] brcmfmac: sdio: Fix OOB interrupt initialization on brcm43362

[Sasha Levin]

From: Jean-Philippe Brucker <jean-philippe@linaro.org>

[ Upstream commit 8c8e60fb86a90a30721bbd797f58f96b3980dcc1 ]

Commit 262f2b53f679 ("brcmfmac: call brcmf_attach() just before calling
brcmf_bus_started()") changed the initialization order of the brcmfmac
SDIO driver. Unfortunately since brcmf_sdiod_intr_register() is now
called before the sdiodev->bus_if initialization, it reads the wrong
chip ID and fails to initialize the GPIO on brcm43362. Thus the chip
cannot send interrupts and fails to probe:

[   12.517023] brcmfmac: brcmf_sdio_bus_rxctl: resumed on timeout
[   12.531214] ieee80211 phy0: brcmf_bus_started: failed: -110
[   12.536976] ieee80211 phy0: brcmf_attach: dongle is not responding: err=-110
[   12.566467] brcmfmac: brcmf_sdio_firmware_callback: brcmf_attach failed

Initialize the bus interface earlier to ensure that
brcmf_sdiod_intr_register() properly sets up the OOB interrupt.

BugLink: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=908438
Fixes: 262f2b53f679 ("brcmfmac: call brcmf_attach() just before calling brcmf_bus_started()")
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../net/wireless/broadcom/brcm80211/brcmfmac/sdio.c  | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
index 1dea0178832ea..a935993a3c514 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
@@ -4226,6 +4226,12 @@ static void brcmf_sdio_firmware_callback(struct device *dev, int err,
 	}
 
 	if (err == 0) {
+		/* Assign bus interface call back */
+		sdiod->bus_if->dev = sdiod->dev;
+		sdiod->bus_if->ops = &brcmf_sdio_bus_ops;
+		sdiod->bus_if->chip = bus->ci->chip;
+		sdiod->bus_if->chiprev = bus->ci->chiprev;
+
 		/* Allow full data communication using DPC from now on. */
 		brcmf_sdiod_change_state(bus->sdiodev, BRCMF_SDIOD_DATA);
 
@@ -4242,12 +4248,6 @@ static void brcmf_sdio_firmware_callback(struct device *dev, int err,
 
 	sdio_release_host(sdiod->func1);
 
-	/* Assign bus interface call back */
-	sdiod->bus_if->dev = sdiod->dev;
-	sdiod->bus_if->ops = &brcmf_sdio_bus_ops;
-	sdiod->bus_if->chip = bus->ci->chip;
-	sdiod->bus_if->chiprev = bus->ci->chiprev;
-
 	err = brcmf_alloc(sdiod->dev, sdiod->settings);
 	if (err) {
 		brcmf_err("brcmf_alloc failed\n");
-- 
2.20.1

[PATCH AUTOSEL 5.4 095/459] libertas: don't exit from lbs_ibss_join_existing() with RCU read lock held

[Sasha Levin]

From: Nicolai Stange <nstange@suse.de>

[ Upstream commit c7bf1fb7ddca331780b9a733ae308737b39f1ad4 ]

Commit e5e884b42639 ("libertas: Fix two buffer overflows at parsing bss
descriptor") introduced a bounds check on the number of supplied rates to
lbs_ibss_join_existing().

Unfortunately, it introduced a return path from within a RCU read side
critical section without a corresponding rcu_read_unlock(). Fix this.

Fixes: e5e884b42639 ("libertas: Fix two buffer overflows at parsing bss descriptor")
Signed-off-by: Nicolai Stange <nstange@suse.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/marvell/libertas/cfg.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/marvell/libertas/cfg.c b/drivers/net/wireless/marvell/libertas/cfg.c
index c9401c121a14e..68985d7663491 100644
--- a/drivers/net/wireless/marvell/libertas/cfg.c
+++ b/drivers/net/wireless/marvell/libertas/cfg.c
@@ -1785,6 +1785,7 @@ static int lbs_ibss_join_existing(struct lbs_private *priv,
 		rates_max = rates_eid[1];
 		if (rates_max > MAX_RATES) {
 			lbs_deb_join("invalid rates");
+			rcu_read_unlock();
 			goto out;
 		}
 		rates = cmd.bss.rates;
-- 
2.20.1

[PATCH AUTOSEL 5.4 096/459] libertas: make lbs_ibss_join_existing() return error code on rates overflow

[Sasha Levin]

From: Nicolai Stange <nstange@suse.de>

[ Upstream commit 1754c4f60aaf1e17d886afefee97e94d7f27b4cb ]

Commit e5e884b42639 ("libertas: Fix two buffer overflows at parsing bss
descriptor") introduced a bounds check on the number of supplied rates to
lbs_ibss_join_existing() and made it to return on overflow.

However, the aforementioned commit doesn't set the return value accordingly
and thus, lbs_ibss_join_existing() would return with zero even though it
failed.

Make lbs_ibss_join_existing return -EINVAL in case the bounds check on the
number of supplied rates fails.

Fixes: e5e884b42639 ("libertas: Fix two buffer overflows at parsing bss descriptor")
Signed-off-by: Nicolai Stange <nstange@suse.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/marvell/libertas/cfg.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/marvell/libertas/cfg.c b/drivers/net/wireless/marvell/libertas/cfg.c
index 68985d7663491..4e3de684928bf 100644
--- a/drivers/net/wireless/marvell/libertas/cfg.c
+++ b/drivers/net/wireless/marvell/libertas/cfg.c
@@ -1786,6 +1786,7 @@ static int lbs_ibss_join_existing(struct lbs_private *priv,
 		if (rates_max > MAX_RATES) {
 			lbs_deb_join("invalid rates");
 			rcu_read_unlock();
+			ret = -EINVAL;
 			goto out;
 		}
 		rates = cmd.bss.rates;
-- 
2.20.1

[PATCH AUTOSEL 5.4 145/459] ath10k: correct the tlv len of ath10k_wmi_tlv_op_gen_config_pno_start

[Sasha Levin]

From: Wen Gong <wgong@codeaurora.org>

[ Upstream commit e01cc82c4d1ec3bddcbb7cd991cf5dc0131ed9a1 ]

the tlv len is set to the total len of the wmi cmd, it will trigger
firmware crash, correct the tlv len.

Tested with QCA6174 SDIO with firmware
WLAN.RMH.4.4.1-00017-QCARMSWP-1 and QCA6174
PCIE with firmware WLAN.RM.4.4.1-00110-QCARMSWPZ-1.

Fixes: ce834e280f2f875 ("ath10k: support NET_DETECT WoWLAN feature")
Signed-off-by: Wen Gong <wgong@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath10k/wmi-tlv.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.c b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
index 4d5d10c010645..eb0c963d9fd51 100644
--- a/drivers/net/wireless/ath/ath10k/wmi-tlv.c
+++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.c
@@ -3650,6 +3650,7 @@ ath10k_wmi_tlv_op_gen_config_pno_start(struct ath10k *ar,
 	struct wmi_tlv *tlv;
 	struct sk_buff *skb;
 	__le32 *channel_list;
+	u16 tlv_len;
 	size_t len;
 	void *ptr;
 	u32 i;
@@ -3707,10 +3708,12 @@ ath10k_wmi_tlv_op_gen_config_pno_start(struct ath10k *ar,
 	/* nlo_configured_parameters(nlo_list) */
 	cmd->no_of_ssids = __cpu_to_le32(min_t(u8, pno->uc_networks_count,
 					       WMI_NLO_MAX_SSIDS));
+	tlv_len = __le32_to_cpu(cmd->no_of_ssids) *
+		sizeof(struct nlo_configured_parameters);
 
 	tlv = ptr;
 	tlv->tag = __cpu_to_le16(WMI_TLV_TAG_ARRAY_STRUCT);
-	tlv->len = __cpu_to_le16(len);
+	tlv->len = __cpu_to_le16(tlv_len);
 
 	ptr += sizeof(*tlv);
 	nlo_list = ptr;
-- 
2.20.1

[PATCH AUTOSEL 5.4 198/459] b43legacy: Fix -Wcast-function-type

[Sasha Levin]

From: Phong Tran <tranmanphong@gmail.com>

[ Upstream commit 475eec112e4267232d10f4afe2f939a241692b6c ]

correct usage prototype of callback in tasklet_init().
Report by https://github.com/KSPP/linux/issues/20

Tested-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Phong Tran <tranmanphong@gmail.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/broadcom/b43legacy/main.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/broadcom/b43legacy/main.c b/drivers/net/wireless/broadcom/b43legacy/main.c
index 4325e91736eb3..8b6b657c4b85b 100644
--- a/drivers/net/wireless/broadcom/b43legacy/main.c
+++ b/drivers/net/wireless/broadcom/b43legacy/main.c
@@ -1275,8 +1275,9 @@ static void handle_irq_ucode_debug(struct b43legacy_wldev *dev)
 }
 
 /* Interrupt handler bottom-half */
-static void b43legacy_interrupt_tasklet(struct b43legacy_wldev *dev)
+static void b43legacy_interrupt_tasklet(unsigned long data)
 {
+	struct b43legacy_wldev *dev = (struct b43legacy_wldev *)data;
 	u32 reason;
 	u32 dma_reason[ARRAY_SIZE(dev->dma_reason)];
 	u32 merged_dma_reason = 0;
@@ -3741,7 +3742,7 @@ static int b43legacy_one_core_attach(struct ssb_device *dev,
 	b43legacy_set_status(wldev, B43legacy_STAT_UNINIT);
 	wldev->bad_frames_preempt = modparam_bad_frames_preempt;
 	tasklet_init(&wldev->isr_tasklet,
-		     (void (*)(unsigned long))b43legacy_interrupt_tasklet,
+		     b43legacy_interrupt_tasklet,
 		     (unsigned long)wldev);
 	if (modparam_pio)
 		wldev->__using_pio = true;
-- 
2.20.1

[PATCH AUTOSEL 5.4 199/459] ipw2x00: Fix -Wcast-function-type

[Sasha Levin]

From: Phong Tran <tranmanphong@gmail.com>

[ Upstream commit ebd77feb27e91bb5fe35a7818b7c13ea7435fb98 ]

correct usage prototype of callback in tasklet_init().
Report by https://github.com/KSPP/linux/issues/20

Signed-off-by: Phong Tran <tranmanphong@gmail.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/ipw2x00/ipw2100.c | 7 ++++---
 drivers/net/wireless/intel/ipw2x00/ipw2200.c | 5 +++--
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/intel/ipw2x00/ipw2100.c b/drivers/net/wireless/intel/ipw2x00/ipw2100.c
index 8dfbaff2d1fe2..a162146a43a72 100644
--- a/drivers/net/wireless/intel/ipw2x00/ipw2100.c
+++ b/drivers/net/wireless/intel/ipw2x00/ipw2100.c
@@ -3206,8 +3206,9 @@ static void ipw2100_tx_send_data(struct ipw2100_priv *priv)
 	}
 }
 
-static void ipw2100_irq_tasklet(struct ipw2100_priv *priv)
+static void ipw2100_irq_tasklet(unsigned long data)
 {
+	struct ipw2100_priv *priv = (struct ipw2100_priv *)data;
 	struct net_device *dev = priv->net_dev;
 	unsigned long flags;
 	u32 inta, tmp;
@@ -6007,7 +6008,7 @@ static void ipw2100_rf_kill(struct work_struct *work)
 	spin_unlock_irqrestore(&priv->low_lock, flags);
 }
 
-static void ipw2100_irq_tasklet(struct ipw2100_priv *priv);
+static void ipw2100_irq_tasklet(unsigned long data);
 
 static const struct net_device_ops ipw2100_netdev_ops = {
 	.ndo_open		= ipw2100_open,
@@ -6137,7 +6138,7 @@ static struct net_device *ipw2100_alloc_device(struct pci_dev *pci_dev,
 	INIT_DELAYED_WORK(&priv->rf_kill, ipw2100_rf_kill);
 	INIT_DELAYED_WORK(&priv->scan_event, ipw2100_scan_event);
 
-	tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
+	tasklet_init(&priv->irq_tasklet,
 		     ipw2100_irq_tasklet, (unsigned long)priv);
 
 	/* NOTE:  We do not start the deferred work for status checks yet */
diff --git a/drivers/net/wireless/intel/ipw2x00/ipw2200.c b/drivers/net/wireless/intel/ipw2x00/ipw2200.c
index ed0f06532d5e2..ac5f797fb1ad1 100644
--- a/drivers/net/wireless/intel/ipw2x00/ipw2200.c
+++ b/drivers/net/wireless/intel/ipw2x00/ipw2200.c
@@ -1945,8 +1945,9 @@ static void notify_wx_assoc_event(struct ipw_priv *priv)
 	wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
 }
 
-static void ipw_irq_tasklet(struct ipw_priv *priv)
+static void ipw_irq_tasklet(unsigned long data)
 {
+	struct ipw_priv *priv = (struct ipw_priv *)data;
 	u32 inta, inta_mask, handled = 0;
 	unsigned long flags;
 	int rc = 0;
@@ -10680,7 +10681,7 @@ static int ipw_setup_deferred_work(struct ipw_priv *priv)
 	INIT_WORK(&priv->qos_activate, ipw_bg_qos_activate);
 #endif				/* CONFIG_IPW2200_QOS */
 
-	tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
+	tasklet_init(&priv->irq_tasklet,
 		     ipw_irq_tasklet, (unsigned long)priv);
 
 	return ret;
-- 
2.20.1

[PATCH AUTOSEL 5.4 200/459] iwlegacy: Fix -Wcast-function-type

[Sasha Levin]

From: Phong Tran <tranmanphong@gmail.com>

[ Upstream commit da5e57e8a6a3e69dac2937ba63fa86355628fbb2 ]

correct usage prototype of callback in tasklet_init().
Report by https://github.com/KSPP/linux/issues/20

Signed-off-by: Phong Tran <tranmanphong@gmail.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlegacy/3945-mac.c | 5 +++--
 drivers/net/wireless/intel/iwlegacy/4965-mac.c | 5 +++--
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlegacy/3945-mac.c b/drivers/net/wireless/intel/iwlegacy/3945-mac.c
index 4fbcc7fba3cc1..e2e9c3e8fff51 100644
--- a/drivers/net/wireless/intel/iwlegacy/3945-mac.c
+++ b/drivers/net/wireless/intel/iwlegacy/3945-mac.c
@@ -1376,8 +1376,9 @@ il3945_dump_nic_error_log(struct il_priv *il)
 }
 
 static void
-il3945_irq_tasklet(struct il_priv *il)
+il3945_irq_tasklet(unsigned long data)
 {
+	struct il_priv *il = (struct il_priv *)data;
 	u32 inta, handled = 0;
 	u32 inta_fh;
 	unsigned long flags;
@@ -3403,7 +3404,7 @@ il3945_setup_deferred_work(struct il_priv *il)
 	timer_setup(&il->watchdog, il_bg_watchdog, 0);
 
 	tasklet_init(&il->irq_tasklet,
-		     (void (*)(unsigned long))il3945_irq_tasklet,
+		     il3945_irq_tasklet,
 		     (unsigned long)il);
 }
 
diff --git a/drivers/net/wireless/intel/iwlegacy/4965-mac.c b/drivers/net/wireless/intel/iwlegacy/4965-mac.c
index ffb705b18fb13..5fe17039a3375 100644
--- a/drivers/net/wireless/intel/iwlegacy/4965-mac.c
+++ b/drivers/net/wireless/intel/iwlegacy/4965-mac.c
@@ -4344,8 +4344,9 @@ il4965_synchronize_irq(struct il_priv *il)
 }
 
 static void
-il4965_irq_tasklet(struct il_priv *il)
+il4965_irq_tasklet(unsigned long data)
 {
+	struct il_priv *il = (struct il_priv *)data;
 	u32 inta, handled = 0;
 	u32 inta_fh;
 	unsigned long flags;
@@ -6238,7 +6239,7 @@ il4965_setup_deferred_work(struct il_priv *il)
 	timer_setup(&il->watchdog, il_bg_watchdog, 0);
 
 	tasklet_init(&il->irq_tasklet,
-		     (void (*)(unsigned long))il4965_irq_tasklet,
+		     il4965_irq_tasklet,
 		     (unsigned long)il);
 }
 
-- 
2.20.1

[PATCH AUTOSEL 5.4 201/459] rtlwifi: rtl_pci: Fix -Wcast-function-type

[Sasha Levin]

From: Phong Tran <tranmanphong@gmail.com>

[ Upstream commit cb775c88da5d48a85d99d95219f637b6fad2e0e9 ]

correct usage prototype of callback in tasklet_init().
Report by https://github.com/KSPP/linux/issues/20

Signed-off-by: Phong Tran <tranmanphong@gmail.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/realtek/rtlwifi/pci.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtlwifi/pci.c b/drivers/net/wireless/realtek/rtlwifi/pci.c
index f88d26535978d..25335bd2873b6 100644
--- a/drivers/net/wireless/realtek/rtlwifi/pci.c
+++ b/drivers/net/wireless/realtek/rtlwifi/pci.c
@@ -1061,13 +1061,15 @@ static irqreturn_t _rtl_pci_interrupt(int irq, void *dev_id)
 	return ret;
 }
 
-static void _rtl_pci_irq_tasklet(struct ieee80211_hw *hw)
+static void _rtl_pci_irq_tasklet(unsigned long data)
 {
+	struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
 	_rtl_pci_tx_chk_waitq(hw);
 }
 
-static void _rtl_pci_prepare_bcn_tasklet(struct ieee80211_hw *hw)
+static void _rtl_pci_prepare_bcn_tasklet(unsigned long data)
 {
+	struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
@@ -1193,10 +1195,10 @@ static void _rtl_pci_init_struct(struct ieee80211_hw *hw,
 
 	/*task */
 	tasklet_init(&rtlpriv->works.irq_tasklet,
-		     (void (*)(unsigned long))_rtl_pci_irq_tasklet,
+		     _rtl_pci_irq_tasklet,
 		     (unsigned long)hw);
 	tasklet_init(&rtlpriv->works.irq_prepare_bcn_tasklet,
-		     (void (*)(unsigned long))_rtl_pci_prepare_bcn_tasklet,
+		     _rtl_pci_prepare_bcn_tasklet,
 		     (unsigned long)hw);
 	INIT_WORK(&rtlpriv->works.lps_change_work,
 		  rtl_lps_change_work_callback);
-- 
2.20.1

[PATCH AUTOSEL 5.4 202/459] bcma: remove set but not used variable 'sizel'

[Sasha Levin]

From: yu kuai <yukuai3@huawei.com>

[ Upstream commit f427939391f290cbeabe0231eb8a116429d823f0 ]

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/bcma/scan.c: In function ‘bcma_erom_get_addr_desc’:

drivers/bcma/scan.c:222:20: warning: variable ‘sizel’ set but
not used [-Wunused-but-set-variable]

It is never used, and so can be removed.

Fixes: 8369ae33b705 ("bcma: add Broadcom specific AMBA bus driver")
Signed-off-by: yu kuai <yukuai3@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/bcma/scan.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/bcma/scan.c b/drivers/bcma/scan.c
index 4a2d1b235fb5a..1f2de714b4017 100644
--- a/drivers/bcma/scan.c
+++ b/drivers/bcma/scan.c
@@ -219,7 +219,7 @@ static s32 bcma_erom_get_mst_port(struct bcma_bus *bus, u32 __iomem **eromptr)
 static u32 bcma_erom_get_addr_desc(struct bcma_bus *bus, u32 __iomem **eromptr,
 				  u32 type, u8 port)
 {
-	u32 addrl, addrh, sizel, sizeh = 0;
+	u32 addrl, addrh, sizeh = 0;
 	u32 size;
 
 	u32 ent = bcma_erom_get_ent(bus, eromptr);
@@ -239,12 +239,9 @@ static u32 bcma_erom_get_addr_desc(struct bcma_bus *bus, u32 __iomem **eromptr,
 
 	if ((ent & SCAN_ADDR_SZ) == SCAN_ADDR_SZ_SZD) {
 		size = bcma_erom_get_ent(bus, eromptr);
-		sizel = size & SCAN_SIZE_SZ;
 		if (size & SCAN_SIZE_SG32)
 			sizeh = bcma_erom_get_ent(bus, eromptr);
-	} else
-		sizel = SCAN_ADDR_SZ_BASE <<
-				((ent & SCAN_ADDR_SZ) >> SCAN_ADDR_SZ_SHIFT);
+	}
 
 	return addrl;
 }
-- 
2.20.1

[PATCH AUTOSEL 5.4 203/459] orinoco: avoid assertion in case of NULL pointer

[Sasha Levin]

From: Aditya Pakki <pakki001@umn.edu>

[ Upstream commit c705f9fc6a1736dcf6ec01f8206707c108dca824 ]

In ezusb_init, if upriv is NULL, the code crashes. However, the caller
in ezusb_probe can handle the error and print the failure message.
The patch replaces the BUG_ON call to error return.

Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intersil/orinoco/orinoco_usb.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/intersil/orinoco/orinoco_usb.c b/drivers/net/wireless/intersil/orinoco/orinoco_usb.c
index 8c79b963bcffb..e753f43e0162f 100644
--- a/drivers/net/wireless/intersil/orinoco/orinoco_usb.c
+++ b/drivers/net/wireless/intersil/orinoco/orinoco_usb.c
@@ -1361,7 +1361,8 @@ static int ezusb_init(struct hermes *hw)
 	int retval;
 
 	BUG_ON(in_interrupt());
-	BUG_ON(!upriv);
+	if (!upriv)
+		return -EINVAL;
 
 	upriv->reply_count = 0;
 	/* Write the MAGIC number on the simulated registers to keep
-- 
2.20.1

[PATCH AUTOSEL 5.4 405/459] ath10k: pci: Only dump ATH10K_MEM_REGION_TYPE_IOREG when safe

[Sasha Levin]

From: Bryan O'Donoghue <bryan.odonoghue@linaro.org>

[ Upstream commit d239380196c4e27a26fa4bea73d2bf994c14ec2d ]

ath10k_pci_dump_memory_reg() will try to access memory of type
ATH10K_MEM_REGION_TYPE_IOREG however, if a hardware restart is in progress
this can crash a system.

Individual ioread32() time has been observed to jump from 15-20 ticks to >
80k ticks followed by a secure-watchdog bite and a system reset.

Work around this corner case by only issuing the read transaction when the
driver state is ATH10K_STATE_ON.

Tested-on: QCA9988 PCI 10.4-3.9.0.2-00044

Fixes: 219cc084c6706 ("ath10k: add memory dump support QCA9984")
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath10k/pci.c | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index 347bb92e4130d..0a727502d14c5 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -1604,11 +1604,22 @@ static int ath10k_pci_dump_memory_reg(struct ath10k *ar,
 {
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
 	u32 i;
+	int ret;
+
+	mutex_lock(&ar->conf_mutex);
+	if (ar->state != ATH10K_STATE_ON) {
+		ath10k_warn(ar, "Skipping pci_dump_memory_reg invalid state\n");
+		ret = -EIO;
+		goto done;
+	}
 
 	for (i = 0; i < region->len; i += 4)
 		*(u32 *)(buf + i) = ioread32(ar_pci->mem + region->start + i);
 
-	return region->len;
+	ret = region->len;
+done:
+	mutex_unlock(&ar->conf_mutex);
+	return ret;
 }
 
 /* if an error happened returns < 0, otherwise the length */
@@ -1704,7 +1715,11 @@ static void ath10k_pci_dump_memory(struct ath10k *ar,
 			count = ath10k_pci_dump_memory_sram(ar, current_region, buf);
 			break;
 		case ATH10K_MEM_REGION_TYPE_IOREG:
-			count = ath10k_pci_dump_memory_reg(ar, current_region, buf);
+			ret = ath10k_pci_dump_memory_reg(ar, current_region, buf);
+			if (ret < 0)
+				break;
+
+			count = ret;
 			break;
 		default:
 			ret = ath10k_pci_dump_memory_generic(ar, current_region, buf);
-- 
2.20.1

[PATCH AUTOSEL 5.4 406/459] hostap: Adjust indentation in prism2_hostapd_add_sta

[Sasha Levin]

From: Nathan Chancellor <natechancellor@gmail.com>

[ Upstream commit b61156fba74f659d0bc2de8f2dbf5bad9f4b8faf ]

Clang warns:

../drivers/net/wireless/intersil/hostap/hostap_ap.c:2511:3: warning:
misleading indentation; statement is not part of the previous 'if'
[-Wmisleading-indentation]
        if (sta->tx_supp_rates & WLAN_RATE_5M5)
        ^
../drivers/net/wireless/intersil/hostap/hostap_ap.c:2509:2: note:
previous statement is here
        if (sta->tx_supp_rates & WLAN_RATE_2M)
        ^
1 warning generated.

This warning occurs because there is a space before the tab on this
line. Remove it so that the indentation is consistent with the Linux
kernel coding style and clang no longer warns.

Fixes: ff1d2767d5a4 ("Add HostAP wireless driver.")
Link: https://github.com/ClangBuiltLinux/linux/issues/813
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intersil/hostap/hostap_ap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/intersil/hostap/hostap_ap.c b/drivers/net/wireless/intersil/hostap/hostap_ap.c
index 0094b1d2b5770..3ec46f48cfde1 100644
--- a/drivers/net/wireless/intersil/hostap/hostap_ap.c
+++ b/drivers/net/wireless/intersil/hostap/hostap_ap.c
@@ -2508,7 +2508,7 @@ static int prism2_hostapd_add_sta(struct ap_data *ap,
 		sta->supported_rates[0] = 2;
 	if (sta->tx_supp_rates & WLAN_RATE_2M)
 		sta->supported_rates[1] = 4;
- 	if (sta->tx_supp_rates & WLAN_RATE_5M5)
+	if (sta->tx_supp_rates & WLAN_RATE_5M5)
 		sta->supported_rates[2] = 11;
 	if (sta->tx_supp_rates & WLAN_RATE_11M)
 		sta->supported_rates[3] = 22;
-- 
2.20.1

[PATCH AUTOSEL 5.4 407/459] rtw88: fix potential NULL skb access in TX ISR

[Sasha Levin]

From: Yan-Hsuan Chuang <yhchuang@realtek.com>

[ Upstream commit f4f84ff8377d4cedf18317747bc407b2cf657d0f ]

Sometimes the TX queue may be empty and we could possible
dequeue a NULL pointer, crash the kernel. If the skb is NULL
then there is nothing to do, just leave the ISR.

And the TX queue should not be empty here, so print an error
to see if there is anything wrong for DMA ring.

Fixes: e3037485c68e ("rtw88: new Realtek 802.11ac driver")
Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/realtek/rtw88/pci.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/wireless/realtek/rtw88/pci.c b/drivers/net/wireless/realtek/rtw88/pci.c
index d90928be663b9..77a2bdee50fa7 100644
--- a/drivers/net/wireless/realtek/rtw88/pci.c
+++ b/drivers/net/wireless/realtek/rtw88/pci.c
@@ -762,6 +762,11 @@ static void rtw_pci_tx_isr(struct rtw_dev *rtwdev, struct rtw_pci *rtwpci,
 
 	while (count--) {
 		skb = skb_dequeue(&ring->queue);
+		if (!skb) {
+			rtw_err(rtwdev, "failed to dequeue %d skb TX queue %d, BD=0x%08x, rp %d -> %d\n",
+				count, hw_queue, bd_idx, ring->r.rp, cur_rp);
+			break;
+		}
 		tx_data = rtw_pci_get_tx_data(skb);
 		pci_unmap_single(rtwpci->pdev, tx_data->dma, skb->len,
 				 PCI_DMA_TODEVICE);
-- 
2.20.1

[PATCH AUTOSEL 5.4 408/459] rtlwifi: rtl8821ae: remove unused variables

[Sasha Levin]

From: YueHaibing <yuehaibing@huawei.com>

[ Upstream commit cc071a6f26aae3321cf193dc2e8c35090709b8ab ]

drivers/net/wireless/realtek/rtlwifi/rtl8821ae/dm.c:142:17:
 warning: cckswing_table_ch1ch13 defined but not used [-Wunused-const-variable=]
drivers/net/wireless/realtek/rtlwifi/rtl8821ae/dm.c:178:17:
 warning: cckswing_table_ch14 defined but not used [-Wunused-const-variable=]
drivers/net/wireless/realtek/rtlwifi/rtl8821ae/dm.c:96:18:
 warning: ofdmswing_table defined but not used [-Wunused-const-variable=]

These variable is never used, so remove them.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../wireless/realtek/rtlwifi/rtl8821ae/dm.c   | 118 ------------------
 1 file changed, 118 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/dm.c b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/dm.c
index b54230433a6bb..f57e8794f0ec6 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/dm.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/dm.c
@@ -93,124 +93,6 @@ static const u32 rtl8821ae_txscaling_table[TXSCALE_TABLE_SIZE] = {
 	0x3FE  /* 36, +6.0dB */
 };
 
-static const u32 ofdmswing_table[] = {
-	0x0b40002d, /* 0, -15.0dB */
-	0x0c000030, /* 1, -14.5dB */
-	0x0cc00033, /* 2, -14.0dB */
-	0x0d800036, /* 3, -13.5dB */
-	0x0e400039, /* 4, -13.0dB */
-	0x0f00003c, /* 5, -12.5dB */
-	0x10000040, /* 6, -12.0dB */
-	0x11000044, /* 7, -11.5dB */
-	0x12000048, /* 8, -11.0dB */
-	0x1300004c, /* 9, -10.5dB */
-	0x14400051, /* 10, -10.0dB */
-	0x15800056, /* 11, -9.5dB */
-	0x16c0005b, /* 12, -9.0dB */
-	0x18000060, /* 13, -8.5dB */
-	0x19800066, /* 14, -8.0dB */
-	0x1b00006c, /* 15, -7.5dB */
-	0x1c800072, /* 16, -7.0dB */
-	0x1e400079, /* 17, -6.5dB */
-	0x20000080, /* 18, -6.0dB */
-	0x22000088, /* 19, -5.5dB */
-	0x24000090, /* 20, -5.0dB */
-	0x26000098, /* 21, -4.5dB */
-	0x288000a2, /* 22, -4.0dB */
-	0x2ac000ab, /* 23, -3.5dB */
-	0x2d4000b5, /* 24, -3.0dB */
-	0x300000c0, /* 25, -2.5dB */
-	0x32c000cb, /* 26, -2.0dB */
-	0x35c000d7, /* 27, -1.5dB */
-	0x390000e4, /* 28, -1.0dB */
-	0x3c8000f2, /* 29, -0.5dB */
-	0x40000100, /* 30, +0dB */
-	0x43c0010f, /* 31, +0.5dB */
-	0x47c0011f, /* 32, +1.0dB */
-	0x4c000130, /* 33, +1.5dB */
-	0x50800142, /* 34, +2.0dB */
-	0x55400155, /* 35, +2.5dB */
-	0x5a400169, /* 36, +3.0dB */
-	0x5fc0017f, /* 37, +3.5dB */
-	0x65400195, /* 38, +4.0dB */
-	0x6b8001ae, /* 39, +4.5dB */
-	0x71c001c7, /* 40, +5.0dB */
-	0x788001e2, /* 41, +5.5dB */
-	0x7f8001fe  /* 42, +6.0dB */
-};
-
-static const u8 cckswing_table_ch1ch13[CCK_TABLE_SIZE][8] = {
-	{0x09, 0x08, 0x07, 0x06, 0x04, 0x03, 0x01, 0x01}, /* 0, -16.0dB */
-	{0x09, 0x09, 0x08, 0x06, 0x05, 0x03, 0x01, 0x01}, /* 1, -15.5dB */
-	{0x0a, 0x09, 0x08, 0x07, 0x05, 0x03, 0x02, 0x01}, /* 2, -15.0dB */
-	{0x0a, 0x0a, 0x09, 0x07, 0x05, 0x03, 0x02, 0x01}, /* 3, -14.5dB */
-	{0x0b, 0x0a, 0x09, 0x08, 0x06, 0x04, 0x02, 0x01}, /* 4, -14.0dB */
-	{0x0b, 0x0b, 0x0a, 0x08, 0x06, 0x04, 0x02, 0x01}, /* 5, -13.5dB */
-	{0x0c, 0x0c, 0x0a, 0x09, 0x06, 0x04, 0x02, 0x01}, /* 6, -13.0dB */
-	{0x0d, 0x0c, 0x0b, 0x09, 0x07, 0x04, 0x02, 0x01}, /* 7, -12.5dB */
-	{0x0d, 0x0d, 0x0c, 0x0a, 0x07, 0x05, 0x02, 0x01}, /* 8, -12.0dB */
-	{0x0e, 0x0e, 0x0c, 0x0a, 0x08, 0x05, 0x02, 0x01}, /* 9, -11.5dB */
-	{0x0f, 0x0f, 0x0d, 0x0b, 0x08, 0x05, 0x03, 0x01}, /* 10, -11.0dB */
-	{0x10, 0x10, 0x0e, 0x0b, 0x08, 0x05, 0x03, 0x01}, /* 11, -10.5dB */
-	{0x11, 0x11, 0x0f, 0x0c, 0x09, 0x06, 0x03, 0x01}, /* 12, -10.0dB */
-	{0x12, 0x12, 0x0f, 0x0c, 0x09, 0x06, 0x03, 0x01}, /* 13, -9.5dB */
-	{0x13, 0x13, 0x10, 0x0d, 0x0a, 0x06, 0x03, 0x01}, /* 14, -9.0dB */
-	{0x14, 0x14, 0x11, 0x0e, 0x0b, 0x07, 0x03, 0x02}, /* 15, -8.5dB */
-	{0x16, 0x15, 0x12, 0x0f, 0x0b, 0x07, 0x04, 0x01}, /* 16, -8.0dB */
-	{0x17, 0x16, 0x13, 0x10, 0x0c, 0x08, 0x04, 0x02}, /* 17, -7.5dB */
-	{0x18, 0x17, 0x15, 0x11, 0x0c, 0x08, 0x04, 0x02}, /* 18, -7.0dB */
-	{0x1a, 0x19, 0x16, 0x12, 0x0d, 0x09, 0x04, 0x02}, /* 19, -6.5dB */
-	{0x1b, 0x1a, 0x17, 0x13, 0x0e, 0x09, 0x04, 0x02}, /* 20, -6.0dB */
-	{0x1d, 0x1c, 0x18, 0x14, 0x0f, 0x0a, 0x05, 0x02}, /* 21, -5.5dB */
-	{0x1f, 0x1e, 0x1a, 0x15, 0x10, 0x0a, 0x05, 0x02}, /* 22, -5.0dB */
-	{0x20, 0x20, 0x1b, 0x16, 0x11, 0x08, 0x05, 0x02}, /* 23, -4.5dB */
-	{0x22, 0x21, 0x1d, 0x18, 0x11, 0x0b, 0x06, 0x02}, /* 24, -4.0dB */
-	{0x24, 0x23, 0x1f, 0x19, 0x13, 0x0c, 0x06, 0x03}, /* 25, -3.5dB */
-	{0x26, 0x25, 0x21, 0x1b, 0x14, 0x0d, 0x06, 0x03}, /* 26, -3.0dB */
-	{0x28, 0x28, 0x22, 0x1c, 0x15, 0x0d, 0x07, 0x03}, /* 27, -2.5dB */
-	{0x2b, 0x2a, 0x25, 0x1e, 0x16, 0x0e, 0x07, 0x03}, /* 28, -2.0dB */
-	{0x2d, 0x2d, 0x27, 0x1f, 0x18, 0x0f, 0x08, 0x03}, /* 29, -1.5dB */
-	{0x30, 0x2f, 0x29, 0x21, 0x19, 0x10, 0x08, 0x03}, /* 30, -1.0dB */
-	{0x33, 0x32, 0x2b, 0x23, 0x1a, 0x11, 0x08, 0x04}, /* 31, -0.5dB */
-	{0x36, 0x35, 0x2e, 0x25, 0x1c, 0x12, 0x09, 0x04} /* 32, +0dB */
-};
-
-static const u8 cckswing_table_ch14[CCK_TABLE_SIZE][8] = {
-	{0x09, 0x08, 0x07, 0x04, 0x00, 0x00, 0x00, 0x00}, /* 0, -16.0dB */
-	{0x09, 0x09, 0x08, 0x05, 0x00, 0x00, 0x00, 0x00}, /* 1, -15.5dB */
-	{0x0a, 0x09, 0x08, 0x05, 0x00, 0x00, 0x00, 0x00}, /* 2, -15.0dB */
-	{0x0a, 0x0a, 0x09, 0x05, 0x00, 0x00, 0x00, 0x00}, /* 3, -14.5dB */
-	{0x0b, 0x0a, 0x09, 0x05, 0x00, 0x00, 0x00, 0x00}, /* 4, -14.0dB */
-	{0x0b, 0x0b, 0x0a, 0x06, 0x00, 0x00, 0x00, 0x00}, /* 5, -13.5dB */
-	{0x0c, 0x0c, 0x0a, 0x06, 0x00, 0x00, 0x00, 0x00}, /* 6, -13.0dB */
-	{0x0d, 0x0c, 0x0b, 0x06, 0x00, 0x00, 0x00, 0x00}, /* 7, -12.5dB */
-	{0x0d, 0x0d, 0x0c, 0x07, 0x00, 0x00, 0x00, 0x00}, /* 8, -12.0dB */
-	{0x0e, 0x0e, 0x0c, 0x07, 0x00, 0x00, 0x00, 0x00}, /* 9, -11.5dB */
-	{0x0f, 0x0f, 0x0d, 0x08, 0x00, 0x00, 0x00, 0x00}, /* 10, -11.0dB */
-	{0x10, 0x10, 0x0e, 0x08, 0x00, 0x00, 0x00, 0x00}, /* 11, -10.5dB */
-	{0x11, 0x11, 0x0f, 0x09, 0x00, 0x00, 0x00, 0x00}, /* 12, -10.0dB */
-	{0x12, 0x12, 0x0f, 0x09, 0x00, 0x00, 0x00, 0x00}, /* 13, -9.5dB */
-	{0x13, 0x13, 0x10, 0x0a, 0x00, 0x00, 0x00, 0x00}, /* 14, -9.0dB */
-	{0x14, 0x14, 0x11, 0x0a, 0x00, 0x00, 0x00, 0x00}, /* 15, -8.5dB */
-	{0x16, 0x15, 0x12, 0x0b, 0x00, 0x00, 0x00, 0x00}, /* 16, -8.0dB */
-	{0x17, 0x16, 0x13, 0x0b, 0x00, 0x00, 0x00, 0x00}, /* 17, -7.5dB */
-	{0x18, 0x17, 0x15, 0x0c, 0x00, 0x00, 0x00, 0x00}, /* 18, -7.0dB */
-	{0x1a, 0x19, 0x16, 0x0d, 0x00, 0x00, 0x00, 0x00}, /* 19, -6.5dB */
-	{0x1b, 0x1a, 0x17, 0x0e, 0x00, 0x00, 0x00, 0x00}, /* 20, -6.0dB */
-	{0x1d, 0x1c, 0x18, 0x0e, 0x00, 0x00, 0x00, 0x00}, /* 21, -5.5dB */
-	{0x1f, 0x1e, 0x1a, 0x0f, 0x00, 0x00, 0x00, 0x00}, /* 22, -5.0dB */
-	{0x20, 0x20, 0x1b, 0x10, 0x00, 0x00, 0x00, 0x00}, /* 23, -4.5dB */
-	{0x22, 0x21, 0x1d, 0x11, 0x00, 0x00, 0x00, 0x00}, /* 24, -4.0dB */
-	{0x24, 0x23, 0x1f, 0x12, 0x00, 0x00, 0x00, 0x00}, /* 25, -3.5dB */
-	{0x26, 0x25, 0x21, 0x13, 0x00, 0x00, 0x00, 0x00}, /* 26, -3.0dB */
-	{0x28, 0x28, 0x24, 0x14, 0x00, 0x00, 0x00, 0x00}, /* 27, -2.5dB */
-	{0x2b, 0x2a, 0x25, 0x15, 0x00, 0x00, 0x00, 0x00}, /* 28, -2.0dB */
-	{0x2d, 0x2d, 0x17, 0x17, 0x00, 0x00, 0x00, 0x00}, /* 29, -1.5dB */
-	{0x30, 0x2f, 0x29, 0x18, 0x00, 0x00, 0x00, 0x00}, /* 30, -1.0dB */
-	{0x33, 0x32, 0x2b, 0x19, 0x00, 0x00, 0x00, 0x00}, /* 31, -0.5dB */
-	{0x36, 0x35, 0x2e, 0x1b, 0x00, 0x00, 0x00, 0x00} /* 32, +0dB */
-};
-
 static const u32 edca_setting_dl[PEER_MAX] = {
 	0xa44f,		/* 0 UNKNOWN */
 	0x5ea44f,	/* 1 REALTEK_90 */
-- 
2.20.1

[PATCH AUTOSEL 5.4 409/459] rtlwifi: rtl8192ee: remove unused variables

[Sasha Levin]

From: YueHaibing <yuehaibing@huawei.com>

[ Upstream commit 253e5aba937973fd29bd5c559d21e35d0642242e ]

drivers/net/wireless/realtek/rtlwifi/rtl8192ee/dm.c:15:18:
 warning: ofdmswing_table defined but not used [-Wunused-const-variable=]
drivers/net/wireless/realtek/rtlwifi/rtl8192ee/dm.c:61:17:
 warning: cckswing_table_ch1ch13 defined but not used [-Wunused-const-variable=]
drivers/net/wireless/realtek/rtlwifi/rtl8192ee/dm.c:97:17:
 warning: cckswing_table_ch14 defined but not used [-Wunused-const-variable=]

These variable is never used, so remove them.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../wireless/realtek/rtlwifi/rtl8192ee/dm.c   | 118 ------------------
 1 file changed, 118 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/dm.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/dm.c
index 648f9108ed4b2..551aa86825edb 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/dm.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/dm.c
@@ -12,124 +12,6 @@
 #include "fw.h"
 #include "trx.h"
 
-static const u32 ofdmswing_table[OFDM_TABLE_SIZE] = {
-	0x7f8001fe,		/* 0, +6.0dB */
-	0x788001e2,		/* 1, +5.5dB */
-	0x71c001c7,		/* 2, +5.0dB */
-	0x6b8001ae,		/* 3, +4.5dB */
-	0x65400195,		/* 4, +4.0dB */
-	0x5fc0017f,		/* 5, +3.5dB */
-	0x5a400169,		/* 6, +3.0dB */
-	0x55400155,		/* 7, +2.5dB */
-	0x50800142,		/* 8, +2.0dB */
-	0x4c000130,		/* 9, +1.5dB */
-	0x47c0011f,		/* 10, +1.0dB */
-	0x43c0010f,		/* 11, +0.5dB */
-	0x40000100,		/* 12, +0dB */
-	0x3c8000f2,		/* 13, -0.5dB */
-	0x390000e4,		/* 14, -1.0dB */
-	0x35c000d7,		/* 15, -1.5dB */
-	0x32c000cb,		/* 16, -2.0dB */
-	0x300000c0,		/* 17, -2.5dB */
-	0x2d4000b5,		/* 18, -3.0dB */
-	0x2ac000ab,		/* 19, -3.5dB */
-	0x288000a2,		/* 20, -4.0dB */
-	0x26000098,		/* 21, -4.5dB */
-	0x24000090,		/* 22, -5.0dB */
-	0x22000088,		/* 23, -5.5dB */
-	0x20000080,		/* 24, -6.0dB */
-	0x1e400079,		/* 25, -6.5dB */
-	0x1c800072,		/* 26, -7.0dB */
-	0x1b00006c,		/* 27. -7.5dB */
-	0x19800066,		/* 28, -8.0dB */
-	0x18000060,		/* 29, -8.5dB */
-	0x16c0005b,		/* 30, -9.0dB */
-	0x15800056,		/* 31, -9.5dB */
-	0x14400051,		/* 32, -10.0dB */
-	0x1300004c,		/* 33, -10.5dB */
-	0x12000048,		/* 34, -11.0dB */
-	0x11000044,		/* 35, -11.5dB */
-	0x10000040,		/* 36, -12.0dB */
-	0x0f00003c,		/* 37, -12.5dB */
-	0x0e400039,		/* 38, -13.0dB */
-	0x0d800036,		/* 39, -13.5dB */
-	0x0cc00033,		/* 40, -14.0dB */
-	0x0c000030,		/* 41, -14.5dB */
-	0x0b40002d,		/* 42, -15.0dB */
-};
-
-static const u8 cckswing_table_ch1ch13[CCK_TABLE_SIZE][8] = {
-	{0x36, 0x35, 0x2e, 0x25, 0x1c, 0x12, 0x09, 0x04}, /* 0, +0dB */
-	{0x33, 0x32, 0x2b, 0x23, 0x1a, 0x11, 0x08, 0x04}, /* 1, -0.5dB */
-	{0x30, 0x2f, 0x29, 0x21, 0x19, 0x10, 0x08, 0x03}, /* 2, -1.0dB */
-	{0x2d, 0x2d, 0x27, 0x1f, 0x18, 0x0f, 0x08, 0x03}, /* 3, -1.5dB */
-	{0x2b, 0x2a, 0x25, 0x1e, 0x16, 0x0e, 0x07, 0x03}, /* 4, -2.0dB */
-	{0x28, 0x28, 0x22, 0x1c, 0x15, 0x0d, 0x07, 0x03}, /* 5, -2.5dB */
-	{0x26, 0x25, 0x21, 0x1b, 0x14, 0x0d, 0x06, 0x03}, /* 6, -3.0dB */
-	{0x24, 0x23, 0x1f, 0x19, 0x13, 0x0c, 0x06, 0x03}, /* 7, -3.5dB */
-	{0x22, 0x21, 0x1d, 0x18, 0x11, 0x0b, 0x06, 0x02}, /* 8, -4.0dB */
-	{0x20, 0x20, 0x1b, 0x16, 0x11, 0x08, 0x05, 0x02}, /* 9, -4.5dB */
-	{0x1f, 0x1e, 0x1a, 0x15, 0x10, 0x0a, 0x05, 0x02}, /* 10, -5.0dB */
-	{0x1d, 0x1c, 0x18, 0x14, 0x0f, 0x0a, 0x05, 0x02}, /* 11, -5.5dB */
-	{0x1b, 0x1a, 0x17, 0x13, 0x0e, 0x09, 0x04, 0x02}, /* 12, -6.0dB */
-	{0x1a, 0x19, 0x16, 0x12, 0x0d, 0x09, 0x04, 0x02}, /* 13, -6.5dB */
-	{0x18, 0x17, 0x15, 0x11, 0x0c, 0x08, 0x04, 0x02}, /* 14, -7.0dB */
-	{0x17, 0x16, 0x13, 0x10, 0x0c, 0x08, 0x04, 0x02}, /* 15, -7.5dB */
-	{0x16, 0x15, 0x12, 0x0f, 0x0b, 0x07, 0x04, 0x01}, /* 16, -8.0dB */
-	{0x14, 0x14, 0x11, 0x0e, 0x0b, 0x07, 0x03, 0x02}, /* 17, -8.5dB */
-	{0x13, 0x13, 0x10, 0x0d, 0x0a, 0x06, 0x03, 0x01}, /* 18, -9.0dB */
-	{0x12, 0x12, 0x0f, 0x0c, 0x09, 0x06, 0x03, 0x01}, /* 19, -9.5dB */
-	{0x11, 0x11, 0x0f, 0x0c, 0x09, 0x06, 0x03, 0x01}, /* 20, -10.0dB */
-	{0x10, 0x10, 0x0e, 0x0b, 0x08, 0x05, 0x03, 0x01}, /* 21, -10.5dB */
-	{0x0f, 0x0f, 0x0d, 0x0b, 0x08, 0x05, 0x03, 0x01}, /* 22, -11.0dB */
-	{0x0e, 0x0e, 0x0c, 0x0a, 0x08, 0x05, 0x02, 0x01}, /* 23, -11.5dB */
-	{0x0d, 0x0d, 0x0c, 0x0a, 0x07, 0x05, 0x02, 0x01}, /* 24, -12.0dB */
-	{0x0d, 0x0c, 0x0b, 0x09, 0x07, 0x04, 0x02, 0x01}, /* 25, -12.5dB */
-	{0x0c, 0x0c, 0x0a, 0x09, 0x06, 0x04, 0x02, 0x01}, /* 26, -13.0dB */
-	{0x0b, 0x0b, 0x0a, 0x08, 0x06, 0x04, 0x02, 0x01}, /* 27, -13.5dB */
-	{0x0b, 0x0a, 0x09, 0x08, 0x06, 0x04, 0x02, 0x01}, /* 28, -14.0dB */
-	{0x0a, 0x0a, 0x09, 0x07, 0x05, 0x03, 0x02, 0x01}, /* 29, -14.5dB */
-	{0x0a, 0x09, 0x08, 0x07, 0x05, 0x03, 0x02, 0x01}, /* 30, -15.0dB */
-	{0x09, 0x09, 0x08, 0x06, 0x05, 0x03, 0x01, 0x01}, /* 31, -15.5dB */
-	{0x09, 0x08, 0x07, 0x06, 0x04, 0x03, 0x01, 0x01}  /* 32, -16.0dB */
-};
-
-static const u8 cckswing_table_ch14[CCK_TABLE_SIZE][8] = {
-	{0x36, 0x35, 0x2e, 0x1b, 0x00, 0x00, 0x00, 0x00}, /* 0, +0dB */
-	{0x33, 0x32, 0x2b, 0x19, 0x00, 0x00, 0x00, 0x00}, /* 1, -0.5dB */
-	{0x30, 0x2f, 0x29, 0x18, 0x00, 0x00, 0x00, 0x00}, /* 2, -1.0dB */
-	{0x2d, 0x2d, 0x17, 0x17, 0x00, 0x00, 0x00, 0x00}, /* 3, -1.5dB */
-	{0x2b, 0x2a, 0x25, 0x15, 0x00, 0x00, 0x00, 0x00}, /* 4, -2.0dB */
-	{0x28, 0x28, 0x24, 0x14, 0x00, 0x00, 0x00, 0x00}, /* 5, -2.5dB */
-	{0x26, 0x25, 0x21, 0x13, 0x00, 0x00, 0x00, 0x00}, /* 6, -3.0dB */
-	{0x24, 0x23, 0x1f, 0x12, 0x00, 0x00, 0x00, 0x00}, /* 7, -3.5dB */
-	{0x22, 0x21, 0x1d, 0x11, 0x00, 0x00, 0x00, 0x00}, /* 8, -4.0dB */
-	{0x20, 0x20, 0x1b, 0x10, 0x00, 0x00, 0x00, 0x00}, /* 9, -4.5dB */
-	{0x1f, 0x1e, 0x1a, 0x0f, 0x00, 0x00, 0x00, 0x00}, /* 10, -5.0dB */
-	{0x1d, 0x1c, 0x18, 0x0e, 0x00, 0x00, 0x00, 0x00}, /* 11, -5.5dB */
-	{0x1b, 0x1a, 0x17, 0x0e, 0x00, 0x00, 0x00, 0x00}, /* 12, -6.0dB */
-	{0x1a, 0x19, 0x16, 0x0d, 0x00, 0x00, 0x00, 0x00}, /* 13, -6.5dB */
-	{0x18, 0x17, 0x15, 0x0c, 0x00, 0x00, 0x00, 0x00}, /* 14, -7.0dB */
-	{0x17, 0x16, 0x13, 0x0b, 0x00, 0x00, 0x00, 0x00}, /* 15, -7.5dB */
-	{0x16, 0x15, 0x12, 0x0b, 0x00, 0x00, 0x00, 0x00}, /* 16, -8.0dB */
-	{0x14, 0x14, 0x11, 0x0a, 0x00, 0x00, 0x00, 0x00}, /* 17, -8.5dB */
-	{0x13, 0x13, 0x10, 0x0a, 0x00, 0x00, 0x00, 0x00}, /* 18, -9.0dB */
-	{0x12, 0x12, 0x0f, 0x09, 0x00, 0x00, 0x00, 0x00}, /* 19, -9.5dB */
-	{0x11, 0x11, 0x0f, 0x09, 0x00, 0x00, 0x00, 0x00}, /* 20, -10.0dB */
-	{0x10, 0x10, 0x0e, 0x08, 0x00, 0x00, 0x00, 0x00}, /* 21, -10.5dB */
-	{0x0f, 0x0f, 0x0d, 0x08, 0x00, 0x00, 0x00, 0x00}, /* 22, -11.0dB */
-	{0x0e, 0x0e, 0x0c, 0x07, 0x00, 0x00, 0x00, 0x00}, /* 23, -11.5dB */
-	{0x0d, 0x0d, 0x0c, 0x07, 0x00, 0x00, 0x00, 0x00}, /* 24, -12.0dB */
-	{0x0d, 0x0c, 0x0b, 0x06, 0x00, 0x00, 0x00, 0x00}, /* 25, -12.5dB */
-	{0x0c, 0x0c, 0x0a, 0x06, 0x00, 0x00, 0x00, 0x00}, /* 26, -13.0dB */
-	{0x0b, 0x0b, 0x0a, 0x06, 0x00, 0x00, 0x00, 0x00}, /* 27, -13.5dB */
-	{0x0b, 0x0a, 0x09, 0x05, 0x00, 0x00, 0x00, 0x00}, /* 28, -14.0dB */
-	{0x0a, 0x0a, 0x09, 0x05, 0x00, 0x00, 0x00, 0x00}, /* 29, -14.5dB */
-	{0x0a, 0x09, 0x08, 0x05, 0x00, 0x00, 0x00, 0x00}, /* 30, -15.0dB */
-	{0x09, 0x09, 0x08, 0x05, 0x00, 0x00, 0x00, 0x00}, /* 31, -15.5dB */
-	{0x09, 0x08, 0x07, 0x04, 0x00, 0x00, 0x00, 0x00}  /* 32, -16.0dB */
-};
-
 static void rtl92ee_dm_false_alarm_counter_statistics(struct ieee80211_hw *hw)
 {
 	u32 ret_value;
-- 
2.20.1

[PATCH AUTOSEL 5.4 410/459] rtlwifi: rtl8723ae: remove unused variables

[Sasha Levin]

From: YueHaibing <yuehaibing@huawei.com>

[ Upstream commit c5f9852411098474ab21f5d7b1b84e5cdd59ca5a ]

drivers/net/wireless/realtek/rtlwifi/rtl8723ae/dm.c:16:18:
 warning: ofdmswing_table defined but not used [-Wunused-const-variable=]
drivers/net/wireless/realtek/rtlwifi/rtl8723ae/dm.c:56:17:
 warning: cckswing_table_ch1ch13 defined but not used [-Wunused-const-variable=]
drivers/net/wireless/realtek/rtlwifi/rtl8723ae/dm.c:92:17:
 warning: cckswing_table_ch14 defined but not used [-Wunused-const-variable=]

These variable is never used, so remove them.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../wireless/realtek/rtlwifi/rtl8723ae/dm.c   | 112 ------------------
 1 file changed, 112 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/dm.c b/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/dm.c
index d8260c7afe09e..c61a92df9d73f 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/dm.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/dm.c
@@ -13,118 +13,6 @@
 #include "fw.h"
 #include "hal_btc.h"
 
-static const u32 ofdmswing_table[OFDM_TABLE_SIZE] = {
-	0x7f8001fe,
-	0x788001e2,
-	0x71c001c7,
-	0x6b8001ae,
-	0x65400195,
-	0x5fc0017f,
-	0x5a400169,
-	0x55400155,
-	0x50800142,
-	0x4c000130,
-	0x47c0011f,
-	0x43c0010f,
-	0x40000100,
-	0x3c8000f2,
-	0x390000e4,
-	0x35c000d7,
-	0x32c000cb,
-	0x300000c0,
-	0x2d4000b5,
-	0x2ac000ab,
-	0x288000a2,
-	0x26000098,
-	0x24000090,
-	0x22000088,
-	0x20000080,
-	0x1e400079,
-	0x1c800072,
-	0x1b00006c,
-	0x19800066,
-	0x18000060,
-	0x16c0005b,
-	0x15800056,
-	0x14400051,
-	0x1300004c,
-	0x12000048,
-	0x11000044,
-	0x10000040,
-};
-
-static const u8 cckswing_table_ch1ch13[CCK_TABLE_SIZE][8] = {
-	{0x36, 0x35, 0x2e, 0x25, 0x1c, 0x12, 0x09, 0x04},
-	{0x33, 0x32, 0x2b, 0x23, 0x1a, 0x11, 0x08, 0x04},
-	{0x30, 0x2f, 0x29, 0x21, 0x19, 0x10, 0x08, 0x03},
-	{0x2d, 0x2d, 0x27, 0x1f, 0x18, 0x0f, 0x08, 0x03},
-	{0x2b, 0x2a, 0x25, 0x1e, 0x16, 0x0e, 0x07, 0x03},
-	{0x28, 0x28, 0x22, 0x1c, 0x15, 0x0d, 0x07, 0x03},
-	{0x26, 0x25, 0x21, 0x1b, 0x14, 0x0d, 0x06, 0x03},
-	{0x24, 0x23, 0x1f, 0x19, 0x13, 0x0c, 0x06, 0x03},
-	{0x22, 0x21, 0x1d, 0x18, 0x11, 0x0b, 0x06, 0x02},
-	{0x20, 0x20, 0x1b, 0x16, 0x11, 0x08, 0x05, 0x02},
-	{0x1f, 0x1e, 0x1a, 0x15, 0x10, 0x0a, 0x05, 0x02},
-	{0x1d, 0x1c, 0x18, 0x14, 0x0f, 0x0a, 0x05, 0x02},
-	{0x1b, 0x1a, 0x17, 0x13, 0x0e, 0x09, 0x04, 0x02},
-	{0x1a, 0x19, 0x16, 0x12, 0x0d, 0x09, 0x04, 0x02},
-	{0x18, 0x17, 0x15, 0x11, 0x0c, 0x08, 0x04, 0x02},
-	{0x17, 0x16, 0x13, 0x10, 0x0c, 0x08, 0x04, 0x02},
-	{0x16, 0x15, 0x12, 0x0f, 0x0b, 0x07, 0x04, 0x01},
-	{0x14, 0x14, 0x11, 0x0e, 0x0b, 0x07, 0x03, 0x02},
-	{0x13, 0x13, 0x10, 0x0d, 0x0a, 0x06, 0x03, 0x01},
-	{0x12, 0x12, 0x0f, 0x0c, 0x09, 0x06, 0x03, 0x01},
-	{0x11, 0x11, 0x0f, 0x0c, 0x09, 0x06, 0x03, 0x01},
-	{0x10, 0x10, 0x0e, 0x0b, 0x08, 0x05, 0x03, 0x01},
-	{0x0f, 0x0f, 0x0d, 0x0b, 0x08, 0x05, 0x03, 0x01},
-	{0x0e, 0x0e, 0x0c, 0x0a, 0x08, 0x05, 0x02, 0x01},
-	{0x0d, 0x0d, 0x0c, 0x0a, 0x07, 0x05, 0x02, 0x01},
-	{0x0d, 0x0c, 0x0b, 0x09, 0x07, 0x04, 0x02, 0x01},
-	{0x0c, 0x0c, 0x0a, 0x09, 0x06, 0x04, 0x02, 0x01},
-	{0x0b, 0x0b, 0x0a, 0x08, 0x06, 0x04, 0x02, 0x01},
-	{0x0b, 0x0a, 0x09, 0x08, 0x06, 0x04, 0x02, 0x01},
-	{0x0a, 0x0a, 0x09, 0x07, 0x05, 0x03, 0x02, 0x01},
-	{0x0a, 0x09, 0x08, 0x07, 0x05, 0x03, 0x02, 0x01},
-	{0x09, 0x09, 0x08, 0x06, 0x05, 0x03, 0x01, 0x01},
-	{0x09, 0x08, 0x07, 0x06, 0x04, 0x03, 0x01, 0x01}
-};
-
-static const u8 cckswing_table_ch14[CCK_TABLE_SIZE][8] = {
-	{0x36, 0x35, 0x2e, 0x1b, 0x00, 0x00, 0x00, 0x00},
-	{0x33, 0x32, 0x2b, 0x19, 0x00, 0x00, 0x00, 0x00},
-	{0x30, 0x2f, 0x29, 0x18, 0x00, 0x00, 0x00, 0x00},
-	{0x2d, 0x2d, 0x17, 0x17, 0x00, 0x00, 0x00, 0x00},
-	{0x2b, 0x2a, 0x25, 0x15, 0x00, 0x00, 0x00, 0x00},
-	{0x28, 0x28, 0x24, 0x14, 0x00, 0x00, 0x00, 0x00},
-	{0x26, 0x25, 0x21, 0x13, 0x00, 0x00, 0x00, 0x00},
-	{0x24, 0x23, 0x1f, 0x12, 0x00, 0x00, 0x00, 0x00},
-	{0x22, 0x21, 0x1d, 0x11, 0x00, 0x00, 0x00, 0x00},
-	{0x20, 0x20, 0x1b, 0x10, 0x00, 0x00, 0x00, 0x00},
-	{0x1f, 0x1e, 0x1a, 0x0f, 0x00, 0x00, 0x00, 0x00},
-	{0x1d, 0x1c, 0x18, 0x0e, 0x00, 0x00, 0x00, 0x00},
-	{0x1b, 0x1a, 0x17, 0x0e, 0x00, 0x00, 0x00, 0x00},
-	{0x1a, 0x19, 0x16, 0x0d, 0x00, 0x00, 0x00, 0x00},
-	{0x18, 0x17, 0x15, 0x0c, 0x00, 0x00, 0x00, 0x00},
-	{0x17, 0x16, 0x13, 0x0b, 0x00, 0x00, 0x00, 0x00},
-	{0x16, 0x15, 0x12, 0x0b, 0x00, 0x00, 0x00, 0x00},
-	{0x14, 0x14, 0x11, 0x0a, 0x00, 0x00, 0x00, 0x00},
-	{0x13, 0x13, 0x10, 0x0a, 0x00, 0x00, 0x00, 0x00},
-	{0x12, 0x12, 0x0f, 0x09, 0x00, 0x00, 0x00, 0x00},
-	{0x11, 0x11, 0x0f, 0x09, 0x00, 0x00, 0x00, 0x00},
-	{0x10, 0x10, 0x0e, 0x08, 0x00, 0x00, 0x00, 0x00},
-	{0x0f, 0x0f, 0x0d, 0x08, 0x00, 0x00, 0x00, 0x00},
-	{0x0e, 0x0e, 0x0c, 0x07, 0x00, 0x00, 0x00, 0x00},
-	{0x0d, 0x0d, 0x0c, 0x07, 0x00, 0x00, 0x00, 0x00},
-	{0x0d, 0x0c, 0x0b, 0x06, 0x00, 0x00, 0x00, 0x00},
-	{0x0c, 0x0c, 0x0a, 0x06, 0x00, 0x00, 0x00, 0x00},
-	{0x0b, 0x0b, 0x0a, 0x06, 0x00, 0x00, 0x00, 0x00},
-	{0x0b, 0x0a, 0x09, 0x05, 0x00, 0x00, 0x00, 0x00},
-	{0x0a, 0x0a, 0x09, 0x05, 0x00, 0x00, 0x00, 0x00},
-	{0x0a, 0x09, 0x08, 0x05, 0x00, 0x00, 0x00, 0x00},
-	{0x09, 0x09, 0x08, 0x05, 0x00, 0x00, 0x00, 0x00},
-	{0x09, 0x08, 0x07, 0x04, 0x00, 0x00, 0x00, 0x00}
-};
-
 static u8 rtl8723e_dm_initial_gain_min_pwdb(struct ieee80211_hw *hw)
 {
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
-- 
2.20.1

[PATCH AUTOSEL 5.4 411/459] iwlegacy: ensure loop counter addr does not wrap and cause an infinite loop

[Sasha Levin]

From: Colin Ian King <colin.king@canonical.com>

[ Upstream commit c2f9a4e4a5abfc84c01b738496b3fd2d471e0b18 ]

The loop counter addr is a u16 where as the upper limit of the loop
is an int. In the unlikely event that the il->cfg->eeprom_size is
greater than 64K then we end up with an infinite loop since addr will
wrap around an never reach upper loop limit. Fix this by making addr
an int.

Addresses-Coverity: ("Infinite loop")
Fixes: be663ab67077 ("iwlwifi: split the drivers for agn and legacy devices 3945/4965")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlegacy/common.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/intel/iwlegacy/common.c b/drivers/net/wireless/intel/iwlegacy/common.c
index 73f7bbf742bc6..746749f379964 100644
--- a/drivers/net/wireless/intel/iwlegacy/common.c
+++ b/drivers/net/wireless/intel/iwlegacy/common.c
@@ -699,7 +699,7 @@ il_eeprom_init(struct il_priv *il)
 	u32 gp = _il_rd(il, CSR_EEPROM_GP);
 	int sz;
 	int ret;
-	u16 addr;
+	int addr;
 
 	/* allocate eeprom */
 	sz = il->cfg->eeprom_size;
-- 
2.20.1

[PATCH AUTOSEL 5.4 417/459] mwifiex: Fix possible buffer overflows in mwifiex_ret_wmm_get_status()

[Sasha Levin]

From: Qing Xu <m1s5p6688@gmail.com>

[ Upstream commit 3a9b153c5591548612c3955c9600a98150c81875 ]

mwifiex_ret_wmm_get_status() calls memcpy() without checking the
destination size.Since the source is given from remote AP which
contains illegal wmm elements , this may trigger a heap buffer
overflow.
Fix it by putting the length check before calling memcpy().

Signed-off-by: Qing Xu <m1s5p6688@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/marvell/mwifiex/wmm.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/wireless/marvell/mwifiex/wmm.c b/drivers/net/wireless/marvell/mwifiex/wmm.c
index 41f0231376c01..132f9e8ed68c1 100644
--- a/drivers/net/wireless/marvell/mwifiex/wmm.c
+++ b/drivers/net/wireless/marvell/mwifiex/wmm.c
@@ -970,6 +970,10 @@ int mwifiex_ret_wmm_get_status(struct mwifiex_private *priv,
 				    "WMM Parameter Set Count: %d\n",
 				    wmm_param_ie->qos_info_bitmap & mask);
 
+			if (wmm_param_ie->vend_hdr.len + 2 >
+				sizeof(struct ieee_types_wmm_parameter))
+				break;
+
 			memcpy((u8 *) &priv->curr_bss_params.bss_descriptor.
 			       wmm_ie, wmm_param_ie,
 			       wmm_param_ie->vend_hdr.len + 2);
-- 
2.20.1

[PATCH AUTOSEL 5.4 418/459] mwifiex: Fix possible buffer overflows in mwifiex_cmd_append_vsie_tlv()

[Sasha Levin]

From: Qing Xu <m1s5p6688@gmail.com>

[ Upstream commit b70261a288ea4d2f4ac7cd04be08a9f0f2de4f4d ]

mwifiex_cmd_append_vsie_tlv() calls memcpy() without checking
the destination size may trigger a buffer overflower,
which a local user could use to cause denial of service
or the execution of arbitrary code.
Fix it by putting the length check before calling memcpy().

Signed-off-by: Qing Xu <m1s5p6688@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/marvell/mwifiex/scan.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/wireless/marvell/mwifiex/scan.c b/drivers/net/wireless/marvell/mwifiex/scan.c
index 593c594982cb3..59f0651d148bb 100644
--- a/drivers/net/wireless/marvell/mwifiex/scan.c
+++ b/drivers/net/wireless/marvell/mwifiex/scan.c
@@ -2886,6 +2886,13 @@ mwifiex_cmd_append_vsie_tlv(struct mwifiex_private *priv,
 			vs_param_set->header.len =
 				cpu_to_le16((((u16) priv->vs_ie[id].ie[1])
 				& 0x00FF) + 2);
+			if (le16_to_cpu(vs_param_set->header.len) >
+				MWIFIEX_MAX_VSIE_LEN) {
+				mwifiex_dbg(priv->adapter, ERROR,
+					    "Invalid param length!\n");
+				break;
+			}
+
 			memcpy(vs_param_set->ie, priv->vs_ie[id].ie,
 			       le16_to_cpu(vs_param_set->header.len));
 			*buffer += le16_to_cpu(vs_param_set->header.len) +
-- 
2.20.1

[PATCH AUTOSEL 5.4 442/459] iwlwifi: mvm: Fix thermal zone registration

[Sasha Levin]

From: Andrei Otcheretianski <andrei.otcheretianski@intel.com>

[ Upstream commit baa6cf8450b72dcab11f37c47efce7c5b9b8ad0f ]

Use a unique name when registering a thermal zone. Otherwise, with
multiple NICS, we hit the following warning during the unregistration.

WARNING: CPU: 2 PID: 3525 at fs/sysfs/group.c:255
 RIP: 0010:sysfs_remove_group+0x80/0x90
 Call Trace:
  dpm_sysfs_remove+0x57/0x60
  device_del+0x5a/0x350
  ? sscanf+0x4e/0x70
  device_unregister+0x1a/0x60
  hwmon_device_unregister+0x4a/0xa0
  thermal_remove_hwmon_sysfs+0x175/0x1d0
  thermal_zone_device_unregister+0x188/0x1e0
  iwl_mvm_thermal_exit+0xe7/0x100 [iwlmvm]
  iwl_op_mode_mvm_stop+0x27/0x180 [iwlmvm]
  _iwl_op_mode_stop.isra.3+0x2b/0x50 [iwlwifi]
  iwl_opmode_deregister+0x90/0xa0 [iwlwifi]
  __exit_compat+0x10/0x2c7 [iwlmvm]
  __x64_sys_delete_module+0x13f/0x270
  do_syscall_64+0x5a/0x110
  entry_SYSCALL_64_after_hwframe+0x44/0xa9

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/mvm/tt.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tt.c b/drivers/net/wireless/intel/iwlwifi/mvm/tt.c
index f0c539b37ea70..a630e4edd9b4d 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/tt.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/tt.c
@@ -731,7 +731,8 @@ static  struct thermal_zone_device_ops tzone_ops = {
 static void iwl_mvm_thermal_zone_register(struct iwl_mvm *mvm)
 {
 	int i;
-	char name[] = "iwlwifi";
+	char name[16];
+	static atomic_t counter = ATOMIC_INIT(0);
 
 	if (!iwl_mvm_is_tt_in_fw(mvm)) {
 		mvm->tz_device.tzone = NULL;
@@ -741,6 +742,7 @@ static void iwl_mvm_thermal_zone_register(struct iwl_mvm *mvm)
 
 	BUILD_BUG_ON(ARRAY_SIZE(name) >= THERMAL_NAME_LENGTH);
 
+	sprintf(name, "iwlwifi_%u", atomic_inc_return(&counter) & 0xFF);
 	mvm->tz_device.tzone = thermal_zone_device_register(name,
 							IWL_MAX_DTS_TRIPS,
 							IWL_WRITABLE_TRIPS_MSK,
-- 
2.20.1

[PATCH AUTOSEL 5.4 443/459] iwlwifi: mvm: avoid use after free for pmsr request

[Sasha Levin]

From: Avraham Stern <avraham.stern@intel.com>

[ Upstream commit cc4255eff523f25187bb95561642941de0e57497 ]

When a FTM request is aborted, the driver sends the abort command to
the fw and waits for a response. When the response arrives, the driver
calls cfg80211_pmsr_complete() for that request.
However, cfg80211 frees the requested data immediately after sending
the abort command, so this may lead to use after free.

Fix it by clearing the request data in the driver when the abort
command arrives and ignoring the fw notification that will come
afterwards.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Fixes: fc36ffda3267 ("iwlwifi: mvm: support FTM initiator")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/mvm/ftm-initiator.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ftm-initiator.c b/drivers/net/wireless/intel/iwlwifi/mvm/ftm-initiator.c
index 9f4b117db9d7f..d47f76890cf9a 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/ftm-initiator.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/ftm-initiator.c
@@ -8,6 +8,7 @@
  * Copyright(c) 2015 - 2017 Intel Deutschland GmbH
  * Copyright (C) 2018 Intel Corporation
  * Copyright (C) 2019 Intel Corporation
+ * Copyright (C) 2020 Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
@@ -30,6 +31,7 @@
  * Copyright(c) 2015 - 2017 Intel Deutschland GmbH
  * Copyright (C) 2018 Intel Corporation
  * Copyright (C) 2019 Intel Corporation
+ * Copyright (C) 2020 Intel Corporation
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -389,6 +391,8 @@ void iwl_mvm_ftm_abort(struct iwl_mvm *mvm, struct cfg80211_pmsr_request *req)
 	if (req != mvm->ftm_initiator.req)
 		return;
 
+	iwl_mvm_ftm_reset(mvm);
+
 	if (iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(TOF_RANGE_ABORT_CMD,
 						 LOCATION_GROUP, 0),
 				 0, sizeof(cmd), &cmd))
@@ -502,7 +506,6 @@ void iwl_mvm_ftm_range_resp(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)
 	lockdep_assert_held(&mvm->mutex);
 
 	if (!mvm->ftm_initiator.req) {
-		IWL_ERR(mvm, "Got FTM response but have no request?\n");
 		return;
 	}
 
-- 
2.20.1

[PATCH AUTOSEL 5.4 444/459] iwlwifi: mvm: Check the sta is not NULL in iwl_mvm_cfg_he_sta()

[Sasha Levin]

From: Andrei Otcheretianski <andrei.otcheretianski@intel.com>

[ Upstream commit 12d47f0ea5e0aa63f19ba618da55a7c67850ca10 ]

Fix a kernel panic by checking that the sta is not NULL.
This could happen during a reconfig flow, as mac80211 moves the sta
between all the states without really checking if the previous state was
successfully set. So, if for some reason we failed to add back the
station, subsequent calls to sta_state() callback will be done when the
station is NULL. This would result in a following panic:

BUG: unable to handle kernel NULL pointer dereference at
0000000000000040
IP: iwl_mvm_cfg_he_sta+0xfc/0x690 [iwlmvm]
[..]
Call Trace:
 iwl_mvm_mac_sta_state+0x629/0x6f0 [iwlmvm]
 drv_sta_state+0xf4/0x950 [mac80211]
 ieee80211_reconfig+0xa12/0x2180 [mac80211]
 ieee80211_restart_work+0xbb/0xe0 [mac80211]
 process_one_work+0x1e2/0x610
 worker_thread+0x4d/0x3e0
[..]

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index 18ccc2692437f..6ca087ffd163b 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -5,10 +5,9 @@
  *
  * GPL LICENSE SUMMARY
  *
- * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
- * Copyright(c) 2018 - 2019 Intel Corporation
+ * Copyright(c) 2012 - 2014, 2018 - 2020 Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
@@ -28,10 +27,9 @@
  *
  * BSD LICENSE
  *
- * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
- * Copyright(c) 2018 - 2019 Intel Corporation
+ * Copyright(c) 2012 - 2014, 2018 - 2020 Intel Corporation
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -2025,7 +2023,7 @@ static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm,
 	rcu_read_lock();
 
 	sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]);
-	if (IS_ERR(sta)) {
+	if (IS_ERR_OR_NULL(sta)) {
 		rcu_read_unlock();
 		WARN(1, "Can't find STA to configure HE\n");
 		return;
-- 
2.20.1