From 0f7352557a35ab7888bc7831411ec8a3cbe20d78 Mon Sep 17 00:00:00 2001
From: Zheng Wang <zyytlz.wz@163.com>
Date: Sun, 7 Jan 2024 08:25:04 +0100
Subject: wifi: brcmfmac: Fix use-after-free bug in brcmf_cfg80211_detach

This is the candidate patch of CVE-2023-47233 :
https://nvd.nist.gov/vuln/detail/CVE-2023-47233

In brcm80211 driver,it starts with the following invoking chain
to start init a timeout worker:

->brcmf_usb_probe
  ->brcmf_usb_probe_cb
    ->brcmf_attach
      ->brcmf_bus_started
        ->brcmf_cfg80211_attach
          ->wl_init_priv
            ->brcmf_init_escan
              ->INIT_WORK(&cfg->escan_timeout_work,
		  brcmf_cfg80211_escan_timeout_worker);

If we disconnect the USB by hotplug, it will call
brcmf_usb_disconnect to make cleanup. The invoking chain is :

brcmf_usb_disconnect
  ->brcmf_usb_disconnect_cb
    ->brcmf_detach
      ->brcmf_cfg80211_detach
        ->kfree(cfg);

While the timeout woker may still be running. This will cause
a use-after-free bug on cfg in brcmf_cfg80211_escan_timeout_worker.

Fix it by deleting the timer and canceling the worker in
brcmf_cfg80211_detach.

Fixes: e756af5b30b0 ("brcmfmac: add e-scan support.")
Signed-off-by: Zheng Wang <zyytlz.wz@163.com>
Cc: stable@vger.kernel.org
[arend.vanspriel@broadcom.com: keep timer delete as is and cancel work just before free]
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240107072504.392713-1-arend.vanspriel@broadcom.com
---
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'drivers/net/wireless/broadcom/brcm80211/brcmfmac')

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
index 133c5ea6429c..52df03243c9f 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
@@ -1179,8 +1179,7 @@ s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
 	scan_request = cfg->scan_request;
 	cfg->scan_request = NULL;
 
-	if (timer_pending(&cfg->escan_timeout))
-		del_timer_sync(&cfg->escan_timeout);
+	timer_delete_sync(&cfg->escan_timeout);
 
 	if (fw_abort) {
 		/* Do a scan abort to stop the driver's scan engine */
@@ -8435,6 +8434,7 @@ void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg)
 	brcmf_btcoex_detach(cfg);
 	wiphy_unregister(cfg->wiphy);
 	wl_deinit_priv(cfg);
+	cancel_work_sync(&cfg->escan_timeout_work);
 	brcmf_free_wiphy(cfg->wiphy);
 	kfree(cfg);
 }
-- 
cgit v1.2.3


From 31343230abb1683e8afb254e6b13a7a7fd01fcac Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend.vanspriel@broadcom.com>
Date: Wed, 3 Jan 2024 10:57:01 +0100
Subject: wifi: brcmfmac: export firmware interface functions

With multi-vendor support the vendor-specific module may need to use
the firmware interface functions so export them using the macro
BRCMF_EXPORT_SYMBOL_GPL() which exports them to driver namespace.

Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240103095704.135651-2-arend.vanspriel@broadcom.com
---
 .../broadcom/brcm80211/brcmfmac/cfg80211.c         |   4 +-
 .../wireless/broadcom/brcm80211/brcmfmac/core.c    |   2 +-
 .../wireless/broadcom/brcm80211/brcmfmac/feature.c |   2 +-
 .../wireless/broadcom/brcm80211/brcmfmac/fwil.c    | 115 ++-----------------
 .../wireless/broadcom/brcm80211/brcmfmac/fwil.h    | 127 ++++++++++++++++++---
 5 files changed, 121 insertions(+), 129 deletions(-)

(limited to 'drivers/net/wireless/broadcom/brcm80211/brcmfmac')

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
index 52df03243c9f..21096cff0c72 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
@@ -3080,7 +3080,7 @@ brcmf_cfg80211_get_station_ibss(struct brcmf_if *ifp,
 	struct brcmf_scb_val_le scbval;
 	struct brcmf_pktcnt_le pktcnt;
 	s32 err;
-	u32 rate;
+	u32 rate = 0;
 	u32 rssi;
 
 	/* Get the current tx rate */
@@ -7268,7 +7268,7 @@ static int brcmf_setup_wiphybands(struct brcmf_cfg80211_info *cfg)
 	u32 nmode = 0;
 	u32 vhtmode = 0;
 	u32 bw_cap[2] = { WLC_BW_20MHZ_BIT, WLC_BW_20MHZ_BIT };
-	u32 rxchain;
+	u32 rxchain = 0;
 	u32 nchain;
 	int err;
 	s32 i;
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
index f599d5f896e8..a92f78026cfd 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
@@ -691,7 +691,7 @@ static int brcmf_net_mon_open(struct net_device *ndev)
 {
 	struct brcmf_if *ifp = netdev_priv(ndev);
 	struct brcmf_pub *drvr = ifp->drvr;
-	u32 monitor;
+	u32 monitor = 0;
 	int err;
 
 	brcmf_dbg(TRACE, "Enter\n");
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c
index 6d10c9efbe93..7348f73680d6 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c
@@ -183,7 +183,7 @@ static void brcmf_feat_wlc_version_overrides(struct brcmf_pub *drv)
 static void brcmf_feat_iovar_int_get(struct brcmf_if *ifp,
 				     enum brcmf_feat_id id, char *name)
 {
-	u32 data;
+	u32 data = 0;
 	int err;
 
 	/* we need to know firmware error */
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.c
index 72fe8bce6eaf..2aec7d2abd52 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.c
@@ -142,6 +142,7 @@ brcmf_fil_cmd_data_set(struct brcmf_if *ifp, u32 cmd, void *data, u32 len)
 
 	return err;
 }
+BRCMF_EXPORT_SYMBOL_GPL(brcmf_fil_cmd_data_set);
 
 s32
 brcmf_fil_cmd_data_get(struct brcmf_if *ifp, u32 cmd, void *data, u32 len)
@@ -160,36 +161,7 @@ brcmf_fil_cmd_data_get(struct brcmf_if *ifp, u32 cmd, void *data, u32 len)
 
 	return err;
 }
-
-
-s32
-brcmf_fil_cmd_int_set(struct brcmf_if *ifp, u32 cmd, u32 data)
-{
-	s32 err;
-	__le32 data_le = cpu_to_le32(data);
-
-	mutex_lock(&ifp->drvr->proto_block);
-	brcmf_dbg(FIL, "ifidx=%d, cmd=%d, value=%d\n", ifp->ifidx, cmd, data);
-	err = brcmf_fil_cmd_data(ifp, cmd, &data_le, sizeof(data_le), true);
-	mutex_unlock(&ifp->drvr->proto_block);
-
-	return err;
-}
-
-s32
-brcmf_fil_cmd_int_get(struct brcmf_if *ifp, u32 cmd, u32 *data)
-{
-	s32 err;
-	__le32 data_le = cpu_to_le32(*data);
-
-	mutex_lock(&ifp->drvr->proto_block);
-	err = brcmf_fil_cmd_data(ifp, cmd, &data_le, sizeof(data_le), false);
-	mutex_unlock(&ifp->drvr->proto_block);
-	*data = le32_to_cpu(data_le);
-	brcmf_dbg(FIL, "ifidx=%d, cmd=%d, value=%d\n", ifp->ifidx, cmd, *data);
-
-	return err;
-}
+BRCMF_EXPORT_SYMBOL_GPL(brcmf_fil_cmd_data_get);
 
 static u32
 brcmf_create_iovar(const char *name, const char *data, u32 datalen,
@@ -270,26 +242,7 @@ brcmf_fil_iovar_data_get(struct brcmf_if *ifp, const char *name, void *data,
 	mutex_unlock(&drvr->proto_block);
 	return err;
 }
-
-s32
-brcmf_fil_iovar_int_set(struct brcmf_if *ifp, const char *name, u32 data)
-{
-	__le32 data_le = cpu_to_le32(data);
-
-	return brcmf_fil_iovar_data_set(ifp, name, &data_le, sizeof(data_le));
-}
-
-s32
-brcmf_fil_iovar_int_get(struct brcmf_if *ifp, const char *name, u32 *data)
-{
-	__le32 data_le = cpu_to_le32(*data);
-	s32 err;
-
-	err = brcmf_fil_iovar_data_get(ifp, name, &data_le, sizeof(data_le));
-	if (err == 0)
-		*data = le32_to_cpu(data_le);
-	return err;
-}
+BRCMF_EXPORT_SYMBOL_GPL(brcmf_fil_iovar_data_get);
 
 static u32
 brcmf_create_bsscfg(s32 bsscfgidx, const char *name, char *data, u32 datalen,
@@ -364,6 +317,7 @@ brcmf_fil_bsscfg_data_set(struct brcmf_if *ifp, const char *name,
 	mutex_unlock(&drvr->proto_block);
 	return err;
 }
+BRCMF_EXPORT_SYMBOL_GPL(brcmf_fil_bsscfg_data_set);
 
 s32
 brcmf_fil_bsscfg_data_get(struct brcmf_if *ifp, const char *name,
@@ -394,28 +348,7 @@ brcmf_fil_bsscfg_data_get(struct brcmf_if *ifp, const char *name,
 	mutex_unlock(&drvr->proto_block);
 	return err;
 }
-
-s32
-brcmf_fil_bsscfg_int_set(struct brcmf_if *ifp, const char *name, u32 data)
-{
-	__le32 data_le = cpu_to_le32(data);
-
-	return brcmf_fil_bsscfg_data_set(ifp, name, &data_le,
-					 sizeof(data_le));
-}
-
-s32
-brcmf_fil_bsscfg_int_get(struct brcmf_if *ifp, const char *name, u32 *data)
-{
-	__le32 data_le = cpu_to_le32(*data);
-	s32 err;
-
-	err = brcmf_fil_bsscfg_data_get(ifp, name, &data_le,
-					sizeof(data_le));
-	if (err == 0)
-		*data = le32_to_cpu(data_le);
-	return err;
-}
+BRCMF_EXPORT_SYMBOL_GPL(brcmf_fil_bsscfg_data_get);
 
 static u32 brcmf_create_xtlv(const char *name, u16 id, char *data, u32 len,
 			     char *buf, u32 buflen)
@@ -465,6 +398,7 @@ s32 brcmf_fil_xtlv_data_set(struct brcmf_if *ifp, const char *name, u16 id,
 	mutex_unlock(&drvr->proto_block);
 	return err;
 }
+BRCMF_EXPORT_SYMBOL_GPL(brcmf_fil_xtlv_data_set);
 
 s32 brcmf_fil_xtlv_data_get(struct brcmf_if *ifp, const char *name, u16 id,
 			    void *data, u32 len)
@@ -494,39 +428,4 @@ s32 brcmf_fil_xtlv_data_get(struct brcmf_if *ifp, const char *name, u16 id,
 	mutex_unlock(&drvr->proto_block);
 	return err;
 }
-
-s32 brcmf_fil_xtlv_int_set(struct brcmf_if *ifp, const char *name, u16 id, u32 data)
-{
-	__le32 data_le = cpu_to_le32(data);
-
-	return brcmf_fil_xtlv_data_set(ifp, name, id, &data_le,
-					 sizeof(data_le));
-}
-
-s32 brcmf_fil_xtlv_int_get(struct brcmf_if *ifp, const char *name, u16 id, u32 *data)
-{
-	__le32 data_le = cpu_to_le32(*data);
-	s32 err;
-
-	err = brcmf_fil_xtlv_data_get(ifp, name, id, &data_le, sizeof(data_le));
-	if (err == 0)
-		*data = le32_to_cpu(data_le);
-	return err;
-}
-
-s32 brcmf_fil_xtlv_int8_get(struct brcmf_if *ifp, const char *name, u16 id, u8 *data)
-{
-	return brcmf_fil_xtlv_data_get(ifp, name, id, data, sizeof(*data));
-}
-
-s32 brcmf_fil_xtlv_int16_get(struct brcmf_if *ifp, const char *name, u16 id, u16 *data)
-{
-	__le16 data_le = cpu_to_le16(*data);
-	s32 err;
-
-	err = brcmf_fil_xtlv_data_get(ifp, name, id, &data_le, sizeof(data_le));
-	if (err == 0)
-		*data = le16_to_cpu(data_le);
-	return err;
-}
-
+BRCMF_EXPORT_SYMBOL_GPL(brcmf_fil_xtlv_data_get);
\ No newline at end of file
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h
index bc693157c4b1..a315a7fac6a0 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.h
@@ -81,29 +81,122 @@
 
 s32 brcmf_fil_cmd_data_set(struct brcmf_if *ifp, u32 cmd, void *data, u32 len);
 s32 brcmf_fil_cmd_data_get(struct brcmf_if *ifp, u32 cmd, void *data, u32 len);
-s32 brcmf_fil_cmd_int_set(struct brcmf_if *ifp, u32 cmd, u32 data);
-s32 brcmf_fil_cmd_int_get(struct brcmf_if *ifp, u32 cmd, u32 *data);
+static inline
+s32 brcmf_fil_cmd_int_set(struct brcmf_if *ifp, u32 cmd, u32 data)
+{
+	s32 err;
+	__le32 data_le = cpu_to_le32(data);
 
-s32 brcmf_fil_iovar_data_set(struct brcmf_if *ifp, const char *name, const void *data,
-			     u32 len);
+	brcmf_dbg(FIL, "ifidx=%d, cmd=%d, value=%d\n", ifp->ifidx, cmd, data);
+	err = brcmf_fil_cmd_data_set(ifp, cmd, &data_le, sizeof(data_le));
+
+	return err;
+}
+static inline
+s32 brcmf_fil_cmd_int_get(struct brcmf_if *ifp, u32 cmd, u32 *data)
+{
+	s32 err;
+	__le32 data_le = cpu_to_le32(*data);
+
+	err = brcmf_fil_cmd_data_get(ifp, cmd, &data_le, sizeof(data_le));
+	if (err == 0)
+		*data = le32_to_cpu(data_le);
+	brcmf_dbg(FIL, "ifidx=%d, cmd=%d, value=%d\n", ifp->ifidx, cmd, *data);
+
+	return err;
+}
+
+s32 brcmf_fil_iovar_data_set(struct brcmf_if *ifp, const char *name,
+			     const void *data, u32 len);
 s32 brcmf_fil_iovar_data_get(struct brcmf_if *ifp, const char *name, void *data,
 			     u32 len);
-s32 brcmf_fil_iovar_int_set(struct brcmf_if *ifp, const char *name, u32 data);
-s32 brcmf_fil_iovar_int_get(struct brcmf_if *ifp, const char *name, u32 *data);
-
-s32 brcmf_fil_bsscfg_data_set(struct brcmf_if *ifp, const char *name, void *data,
-			      u32 len);
-s32 brcmf_fil_bsscfg_data_get(struct brcmf_if *ifp, const char *name, void *data,
-			      u32 len);
-s32 brcmf_fil_bsscfg_int_set(struct brcmf_if *ifp, const char *name, u32 data);
-s32 brcmf_fil_bsscfg_int_get(struct brcmf_if *ifp, const char *name, u32 *data);
+static inline
+s32 brcmf_fil_iovar_int_set(struct brcmf_if *ifp, const char *name, u32 data)
+{
+	__le32 data_le = cpu_to_le32(data);
+
+	return brcmf_fil_iovar_data_set(ifp, name, &data_le, sizeof(data_le));
+}
+static inline
+s32 brcmf_fil_iovar_int_get(struct brcmf_if *ifp, const char *name, u32 *data)
+{
+	__le32 data_le = cpu_to_le32(*data);
+	s32 err;
+
+	err = brcmf_fil_iovar_data_get(ifp, name, &data_le, sizeof(data_le));
+	if (err == 0)
+		*data = le32_to_cpu(data_le);
+	return err;
+}
+
+
+s32 brcmf_fil_bsscfg_data_set(struct brcmf_if *ifp, const char *name,
+			      void *data, u32 len);
+s32 brcmf_fil_bsscfg_data_get(struct brcmf_if *ifp, const char *name,
+			      void *data, u32 len);
+static inline
+s32 brcmf_fil_bsscfg_int_set(struct brcmf_if *ifp, const char *name, u32 data)
+{
+	__le32 data_le = cpu_to_le32(data);
+
+	return brcmf_fil_bsscfg_data_set(ifp, name, &data_le,
+					 sizeof(data_le));
+}
+static inline
+s32 brcmf_fil_bsscfg_int_get(struct brcmf_if *ifp, const char *name, u32 *data)
+{
+	__le32 data_le = cpu_to_le32(*data);
+	s32 err;
+
+	err = brcmf_fil_bsscfg_data_get(ifp, name, &data_le,
+					sizeof(data_le));
+	if (err == 0)
+		*data = le32_to_cpu(data_le);
+	return err;
+}
+
 s32 brcmf_fil_xtlv_data_set(struct brcmf_if *ifp, const char *name, u16 id,
 			    void *data, u32 len);
 s32 brcmf_fil_xtlv_data_get(struct brcmf_if *ifp, const char *name, u16 id,
 			    void *data, u32 len);
-s32 brcmf_fil_xtlv_int_set(struct brcmf_if *ifp, const char *name, u16 id, u32 data);
-s32 brcmf_fil_xtlv_int_get(struct brcmf_if *ifp, const char *name, u16 id, u32 *data);
-s32 brcmf_fil_xtlv_int8_get(struct brcmf_if *ifp, const char *name, u16 id, u8 *data);
-s32 brcmf_fil_xtlv_int16_get(struct brcmf_if *ifp, const char *name, u16 id, u16 *data);
+static inline
+s32 brcmf_fil_xtlv_int_set(struct brcmf_if *ifp, const char *name, u16 id,
+			   u32 data)
+{
+	__le32 data_le = cpu_to_le32(data);
+
+	return brcmf_fil_xtlv_data_set(ifp, name, id, &data_le,
+					 sizeof(data_le));
+}
+static inline
+s32 brcmf_fil_xtlv_int_get(struct brcmf_if *ifp, const char *name, u16 id,
+			   u32 *data)
+{
+	__le32 data_le = cpu_to_le32(*data);
+	s32 err;
+
+	err = brcmf_fil_xtlv_data_get(ifp, name, id, &data_le, sizeof(data_le));
+	if (err == 0)
+		*data = le32_to_cpu(data_le);
+	return err;
+}
+static inline
+s32 brcmf_fil_xtlv_int8_get(struct brcmf_if *ifp, const char *name, u16 id,
+			    u8 *data)
+{
+	return brcmf_fil_xtlv_data_get(ifp, name, id, data, sizeof(*data));
+}
+static inline
+s32 brcmf_fil_xtlv_int16_get(struct brcmf_if *ifp, const char *name, u16 id,
+			     u16 *data)
+{
+	__le16 data_le = cpu_to_le16(*data);
+	s32 err;
+
+	err = brcmf_fil_xtlv_data_get(ifp, name, id, &data_le, sizeof(data_le));
+	if (err == 0)
+		*data = le16_to_cpu(data_le);
+	return err;
+}
 
 #endif /* _fwil_h_ */
-- 
cgit v1.2.3


From 14e1391b71027948cdbacdbea4bf8858c2068eb7 Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend.vanspriel@broadcom.com>
Date: Wed, 3 Jan 2024 10:57:02 +0100
Subject: wifi: brcmfmac: add per-vendor feature detection callback

Adding a .feat_attach() callback allowing per-vendor overrides
of the driver feature flags. In this patch the callback is only
provided by BCA vendor to disable SAE feature as it has not been
confirmed yet. BCA chips generally do not have the in-driver
supplicant (idsup) feature so they rely on NL80211_CMD_EXTERNAL_AUTH
to trigger user-space authentication.

Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240103095704.135651-3-arend.vanspriel@broadcom.com
---
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/bca/core.c |  8 ++++++++
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c  |  3 +++
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.h    | 12 ++++++++++++
 3 files changed, 23 insertions(+)

(limited to 'drivers/net/wireless/broadcom/brcm80211/brcmfmac')

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bca/core.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bca/core.c
index ac3a36fa3640..a5d9ac5e6763 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bca/core.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bca/core.c
@@ -7,6 +7,7 @@
 #include <core.h>
 #include <bus.h>
 #include <fwvid.h>
+#include <feature.h>
 
 #include "vops.h"
 
@@ -21,7 +22,14 @@ static void brcmf_bca_detach(struct brcmf_pub *drvr)
 	pr_err("%s: executing\n", __func__);
 }
 
+static void brcmf_bca_feat_attach(struct brcmf_if *ifp)
+{
+	/* SAE support not confirmed so disabling for now */
+	ifp->drvr->feat_flags &= ~BIT(BRCMF_FEAT_SAE);
+}
+
 const struct brcmf_fwvid_ops brcmf_bca_ops = {
 	.attach = brcmf_bca_attach,
 	.detach = brcmf_bca_detach,
+	.feat_attach = brcmf_bca_feat_attach,
 };
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c
index 7348f73680d6..7fef93ede0fb 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c
@@ -13,6 +13,7 @@
 #include "debug.h"
 #include "fwil.h"
 #include "fwil_types.h"
+#include "fwvid.h"
 #include "feature.h"
 #include "common.h"
 
@@ -339,6 +340,8 @@ void brcmf_feat_attach(struct brcmf_pub *drvr)
 	brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_FWSUP, "sup_wpa");
 	brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_SCAN_V2, "scan_ver");
 
+	brcmf_fwvid_feat_attach(ifp);
+
 	if (drvr->settings->feature_disable) {
 		brcmf_dbg(INFO, "Features: 0x%02x, disable: 0x%02x\n",
 			  ifp->drvr->feat_flags,
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.h
index 43df58bb70ad..17fbdbb76f51 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.h
@@ -8,10 +8,12 @@
 #include "firmware.h"
 
 struct brcmf_pub;
+struct brcmf_if;
 
 struct brcmf_fwvid_ops {
 	int (*attach)(struct brcmf_pub *drvr);
 	void (*detach)(struct brcmf_pub *drvr);
+	void (*feat_attach)(struct brcmf_if *ifp);
 };
 
 /* exported functions */
@@ -44,4 +46,14 @@ static inline void brcmf_fwvid_detach(struct brcmf_pub *drvr)
 	brcmf_fwvid_detach_ops(drvr);
 }
 
+static inline void brcmf_fwvid_feat_attach(struct brcmf_if *ifp)
+{
+	const struct brcmf_fwvid_ops *vops = ifp->drvr->vops;
+
+	if (!vops->feat_attach)
+		return;
+
+	vops->feat_attach(ifp);
+}
+
 #endif /* FWVID_H_ */
-- 
cgit v1.2.3


From ba4d4726335c77bb0ac17840b2c5f764f3d40b99 Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend.vanspriel@broadcom.com>
Date: Wed, 3 Jan 2024 10:57:03 +0100
Subject: wifi: brcmfmac: move feature overrides before feature_disable

The feature_disable option in brcmf_feat_attach() is a debugging or
workaround option to disable features that cause driver issues. Hence
they should be done as last step after all feature detection mechanisms
have been completed.

Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240103095704.135651-4-arend.vanspriel@broadcom.com
---
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'drivers/net/wireless/broadcom/brcm80211/brcmfmac')

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c
index 7fef93ede0fb..f23310a77a5d 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c
@@ -340,6 +340,9 @@ void brcmf_feat_attach(struct brcmf_pub *drvr)
 	brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_FWSUP, "sup_wpa");
 	brcmf_feat_iovar_int_get(ifp, BRCMF_FEAT_SCAN_V2, "scan_ver");
 
+	brcmf_feat_wlc_version_overrides(drvr);
+	brcmf_feat_firmware_overrides(drvr);
+
 	brcmf_fwvid_feat_attach(ifp);
 
 	if (drvr->settings->feature_disable) {
@@ -349,9 +352,6 @@ void brcmf_feat_attach(struct brcmf_pub *drvr)
 		ifp->drvr->feat_flags &= ~drvr->settings->feature_disable;
 	}
 
-	brcmf_feat_wlc_version_overrides(drvr);
-	brcmf_feat_firmware_overrides(drvr);
-
 	/* set chip related quirks */
 	switch (drvr->bus_if->chip) {
 	case BRCM_CC_43236_CHIP_ID:
-- 
cgit v1.2.3


From 9f7861c56b51b84d30114e7fea9d744a9d5ba9b7 Mon Sep 17 00:00:00 2001
From: Hector Martin <marcan@marcan.st>
Date: Wed, 3 Jan 2024 10:57:04 +0100
Subject: wifi: brcmfmac: cfg80211: Use WSEC to set SAE password

Using the WSEC command instead of sae_password seems to be the supported
mechanism on newer firmware, and also how the brcmdhd driver does it.

The existing firmware mechanism intended for (some) Cypress chips has
been separated from the new firmware mechanism using the multi-vendor
framework. Depending on the device it will select the appropriate
firmware mechanism.

This makes WPA3 work with iwd, or with wpa_supplicant pending a support
patchset [2].

[1] https://rachelbythebay.com/w/2023/11/06/wpa3/
[2] http://lists.infradead.org/pipermail/hostap/2023-July/041653.html

Signed-off-by: Hector Martin <marcan@marcan.st>
Reviewed-by: Neal Gompa <neal@gompa.dev>
[arend.vanspriel@broadcom.com: use multi-vendor framework]
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240103095704.135651-5-arend.vanspriel@broadcom.com
---
 .../broadcom/brcm80211/brcmfmac/cfg80211.c         | 56 +++++++++-------------
 .../broadcom/brcm80211/brcmfmac/cfg80211.h         |  2 +
 .../broadcom/brcm80211/brcmfmac/cyw/core.c         | 28 +++++++++++
 .../wireless/broadcom/brcm80211/brcmfmac/fwil.c    |  1 +
 .../broadcom/brcm80211/brcmfmac/fwil_types.h       |  2 +-
 .../wireless/broadcom/brcm80211/brcmfmac/fwvid.h   | 13 +++++
 .../broadcom/brcm80211/brcmfmac/wcc/core.c         |  9 ++++
 7 files changed, 76 insertions(+), 35 deletions(-)

(limited to 'drivers/net/wireless/broadcom/brcm80211/brcmfmac')

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
index 21096cff0c72..736b2ada6f59 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
@@ -32,6 +32,7 @@
 #include "vendor.h"
 #include "bus.h"
 #include "common.h"
+#include "fwvid.h"
 
 #define BRCMF_SCAN_IE_LEN_MAX		2048
 
@@ -1686,52 +1687,39 @@ static u16 brcmf_map_fw_linkdown_reason(const struct brcmf_event_msg *e)
 	return reason;
 }
 
-static int brcmf_set_pmk(struct brcmf_if *ifp, const u8 *pmk_data, u16 pmk_len)
+int brcmf_set_wsec(struct brcmf_if *ifp, const u8 *key, u16 key_len, u16 flags)
 {
 	struct brcmf_pub *drvr = ifp->drvr;
 	struct brcmf_wsec_pmk_le pmk;
 	int err;
 
+	if (key_len > sizeof(pmk.key)) {
+		bphy_err(drvr, "key must be less than %zu bytes\n",
+			 sizeof(pmk.key));
+		return -EINVAL;
+	}
+
 	memset(&pmk, 0, sizeof(pmk));
 
-	/* pass pmk directly */
-	pmk.key_len = cpu_to_le16(pmk_len);
-	pmk.flags = cpu_to_le16(0);
-	memcpy(pmk.key, pmk_data, pmk_len);
+	/* pass key material directly */
+	pmk.key_len = cpu_to_le16(key_len);
+	pmk.flags = cpu_to_le16(flags);
+	memcpy(pmk.key, key, key_len);
 
-	/* store psk in firmware */
+	/* store key material in firmware */
 	err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_WSEC_PMK,
 				     &pmk, sizeof(pmk));
 	if (err < 0)
 		bphy_err(drvr, "failed to change PSK in firmware (len=%u)\n",
-			 pmk_len);
+			 key_len);
 
 	return err;
 }
+BRCMF_EXPORT_SYMBOL_GPL(brcmf_set_wsec);
 
-static int brcmf_set_sae_password(struct brcmf_if *ifp, const u8 *pwd_data,
-				  u16 pwd_len)
+static int brcmf_set_pmk(struct brcmf_if *ifp, const u8 *pmk_data, u16 pmk_len)
 {
-	struct brcmf_pub *drvr = ifp->drvr;
-	struct brcmf_wsec_sae_pwd_le sae_pwd;
-	int err;
-
-	if (pwd_len > BRCMF_WSEC_MAX_SAE_PASSWORD_LEN) {
-		bphy_err(drvr, "sae_password must be less than %d\n",
-			 BRCMF_WSEC_MAX_SAE_PASSWORD_LEN);
-		return -EINVAL;
-	}
-
-	sae_pwd.key_len = cpu_to_le16(pwd_len);
-	memcpy(sae_pwd.key, pwd_data, pwd_len);
-
-	err = brcmf_fil_iovar_data_set(ifp, "sae_password", &sae_pwd,
-				       sizeof(sae_pwd));
-	if (err < 0)
-		bphy_err(drvr, "failed to set SAE password in firmware (len=%u)\n",
-			 pwd_len);
-
-	return err;
+	return brcmf_set_wsec(ifp, pmk_data, pmk_len, 0);
 }
 
 static void brcmf_link_down(struct brcmf_cfg80211_vif *vif, u16 reason,
@@ -2502,8 +2490,7 @@ brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev,
 			bphy_err(drvr, "failed to clean up user-space RSNE\n");
 			goto done;
 		}
-		err = brcmf_set_sae_password(ifp, sme->crypto.sae_pwd,
-					     sme->crypto.sae_pwd_len);
+		err = brcmf_fwvid_set_sae_password(ifp, &sme->crypto);
 		if (!err && sme->crypto.psk)
 			err = brcmf_set_pmk(ifp, sme->crypto.psk,
 					    BRCMF_WSEC_MAX_PSK_LEN);
@@ -5251,8 +5238,7 @@ brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev,
 		if (crypto->sae_pwd) {
 			brcmf_dbg(INFO, "using SAE offload\n");
 			profile->use_fwauth |= BIT(BRCMF_PROFILE_FWAUTH_SAE);
-			err = brcmf_set_sae_password(ifp, crypto->sae_pwd,
-						     crypto->sae_pwd_len);
+			err = brcmf_fwvid_set_sae_password(ifp, crypto);
 			if (err < 0)
 				goto exit;
 		}
@@ -5359,10 +5345,12 @@ static int brcmf_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *ndev,
 		msleep(400);
 
 		if (profile->use_fwauth != BIT(BRCMF_PROFILE_FWAUTH_NONE)) {
+			struct cfg80211_crypto_settings crypto = {};
+
 			if (profile->use_fwauth & BIT(BRCMF_PROFILE_FWAUTH_PSK))
 				brcmf_set_pmk(ifp, NULL, 0);
 			if (profile->use_fwauth & BIT(BRCMF_PROFILE_FWAUTH_SAE))
-				brcmf_set_sae_password(ifp, NULL, 0);
+				brcmf_fwvid_set_sae_password(ifp, &crypto);
 			profile->use_fwauth = BIT(BRCMF_PROFILE_FWAUTH_NONE);
 		}
 
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.h
index 0e1fa3f0dea2..dc3a6a537507 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.h
@@ -468,4 +468,6 @@ void brcmf_set_mpc(struct brcmf_if *ndev, int mpc);
 void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg);
 void brcmf_cfg80211_free_netdev(struct net_device *ndev);
 
+int brcmf_set_wsec(struct brcmf_if *ifp, const u8 *key, u16 key_len, u16 flags);
+
 #endif /* BRCMFMAC_CFG80211_H */
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cyw/core.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cyw/core.c
index b75652ba9359..24670497f1a4 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cyw/core.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cyw/core.c
@@ -7,6 +7,7 @@
 #include <core.h>
 #include <bus.h>
 #include <fwvid.h>
+#include <fwil.h>
 
 #include "vops.h"
 
@@ -21,7 +22,34 @@ static void brcmf_cyw_detach(struct brcmf_pub *drvr)
 	pr_err("%s: executing\n", __func__);
 }
 
+static int brcmf_cyw_set_sae_pwd(struct brcmf_if *ifp,
+				 struct cfg80211_crypto_settings *crypto)
+{
+	struct brcmf_pub *drvr = ifp->drvr;
+	struct brcmf_wsec_sae_pwd_le sae_pwd;
+	u16 pwd_len = crypto->sae_pwd_len;
+	int err;
+
+	if (pwd_len > BRCMF_WSEC_MAX_SAE_PASSWORD_LEN) {
+		bphy_err(drvr, "sae_password must be less than %d\n",
+			 BRCMF_WSEC_MAX_SAE_PASSWORD_LEN);
+		return -EINVAL;
+	}
+
+	sae_pwd.key_len = cpu_to_le16(pwd_len);
+	memcpy(sae_pwd.key, crypto->sae_pwd, pwd_len);
+
+	err = brcmf_fil_iovar_data_set(ifp, "sae_password", &sae_pwd,
+				       sizeof(sae_pwd));
+	if (err < 0)
+		bphy_err(drvr, "failed to set SAE password in firmware (len=%u)\n",
+			 pwd_len);
+
+	return err;
+}
+
 const struct brcmf_fwvid_ops brcmf_cyw_ops = {
 	.attach = brcmf_cyw_attach,
 	.detach = brcmf_cyw_detach,
+	.set_sae_password = brcmf_cyw_set_sae_pwd,
 };
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.c
index 2aec7d2abd52..bc1c6b5a6e31 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.c
@@ -211,6 +211,7 @@ brcmf_fil_iovar_data_set(struct brcmf_if *ifp, const char *name, const void *dat
 	mutex_unlock(&drvr->proto_block);
 	return err;
 }
+BRCMF_EXPORT_SYMBOL_GPL(brcmf_fil_iovar_data_set);
 
 s32
 brcmf_fil_iovar_data_get(struct brcmf_if *ifp, const char *name, void *data,
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil_types.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil_types.h
index 9d248ba1c0b2..e74a23e11830 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil_types.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil_types.h
@@ -584,7 +584,7 @@ struct brcmf_wsec_key_le {
 struct brcmf_wsec_pmk_le {
 	__le16  key_len;
 	__le16  flags;
-	u8 key[2 * BRCMF_WSEC_MAX_PSK_LEN + 1];
+	u8 key[BRCMF_WSEC_MAX_SAE_PASSWORD_LEN];
 };
 
 /**
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.h
index 17fbdbb76f51..d9fc76b46db9 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.h
@@ -6,6 +6,7 @@
 #define FWVID_H_
 
 #include "firmware.h"
+#include "cfg80211.h"
 
 struct brcmf_pub;
 struct brcmf_if;
@@ -14,6 +15,7 @@ struct brcmf_fwvid_ops {
 	int (*attach)(struct brcmf_pub *drvr);
 	void (*detach)(struct brcmf_pub *drvr);
 	void (*feat_attach)(struct brcmf_if *ifp);
+	int (*set_sae_password)(struct brcmf_if *ifp, struct cfg80211_crypto_settings *crypto);
 };
 
 /* exported functions */
@@ -56,4 +58,15 @@ static inline void brcmf_fwvid_feat_attach(struct brcmf_if *ifp)
 	vops->feat_attach(ifp);
 }
 
+static inline int brcmf_fwvid_set_sae_password(struct brcmf_if *ifp,
+					       struct cfg80211_crypto_settings *crypto)
+{
+	const struct brcmf_fwvid_ops *vops = ifp->drvr->vops;
+
+	if (!vops || !vops->set_sae_password)
+		return -EOPNOTSUPP;
+
+	return vops->set_sae_password(ifp, crypto);
+}
+
 #endif /* FWVID_H_ */
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/wcc/core.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/wcc/core.c
index 5573a47766ad..2d8f80bd7382 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/wcc/core.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/wcc/core.c
@@ -7,6 +7,7 @@
 #include <core.h>
 #include <bus.h>
 #include <fwvid.h>
+#include <fwil.h>
 
 #include "vops.h"
 
@@ -21,7 +22,15 @@ static void brcmf_wcc_detach(struct brcmf_pub *drvr)
 	pr_debug("%s: executing\n", __func__);
 }
 
+static int brcmf_wcc_set_sae_pwd(struct brcmf_if *ifp,
+				 struct cfg80211_crypto_settings *crypto)
+{
+	return brcmf_set_wsec(ifp, crypto->sae_pwd, crypto->sae_pwd_len,
+			      BRCMF_WSEC_PASSPHRASE);
+}
+
 const struct brcmf_fwvid_ops brcmf_wcc_ops = {
 	.attach = brcmf_wcc_attach,
 	.detach = brcmf_wcc_detach,
+	.set_sae_password = brcmf_wcc_set_sae_pwd,
 };
-- 
cgit v1.2.3


From 85da8f71aaa7b83ea7ef0e89182e0cd47e16d465 Mon Sep 17 00:00:00 2001
From: Hector Martin <marcan@marcan.st>
Date: Sat, 6 Jan 2024 11:38:33 +0100
Subject: wifi: brcmfmac: Demote vendor-specific attach/detach messages to info

People are getting spooked by brcmfmac errors on their boot console.
There's no reason for these messages to be errors.

Cc: stable@vger.kernel.org # 6.2.x
Fixes: d6a5c562214f ("wifi: brcmfmac: add support for vendor-specific firmware api")
Signed-off-by: Hector Martin <marcan@marcan.st>
[arend.vanspriel@broadcom.com: remove attach/detach vendor callbacks]
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240106103835.269149-2-arend.vanspriel@broadcom.com
---
 .../broadcom/brcm80211/brcmfmac/bca/core.c         | 13 -----------
 .../broadcom/brcm80211/brcmfmac/cyw/core.c         | 13 -----------
 .../wireless/broadcom/brcm80211/brcmfmac/fwvid.c   |  7 +++---
 .../wireless/broadcom/brcm80211/brcmfmac/fwvid.h   | 26 ++--------------------
 .../broadcom/brcm80211/brcmfmac/wcc/core.c         | 15 +------------
 5 files changed, 6 insertions(+), 68 deletions(-)

(limited to 'drivers/net/wireless/broadcom/brcm80211/brcmfmac')

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bca/core.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bca/core.c
index a5d9ac5e6763..a963c242975a 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bca/core.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bca/core.c
@@ -11,17 +11,6 @@
 
 #include "vops.h"
 
-static int brcmf_bca_attach(struct brcmf_pub *drvr)
-{
-	pr_err("%s: executing\n", __func__);
-	return 0;
-}
-
-static void brcmf_bca_detach(struct brcmf_pub *drvr)
-{
-	pr_err("%s: executing\n", __func__);
-}
-
 static void brcmf_bca_feat_attach(struct brcmf_if *ifp)
 {
 	/* SAE support not confirmed so disabling for now */
@@ -29,7 +18,5 @@ static void brcmf_bca_feat_attach(struct brcmf_if *ifp)
 }
 
 const struct brcmf_fwvid_ops brcmf_bca_ops = {
-	.attach = brcmf_bca_attach,
-	.detach = brcmf_bca_detach,
 	.feat_attach = brcmf_bca_feat_attach,
 };
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cyw/core.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cyw/core.c
index 24670497f1a4..bec5748310b9 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cyw/core.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cyw/core.c
@@ -11,17 +11,6 @@
 
 #include "vops.h"
 
-static int brcmf_cyw_attach(struct brcmf_pub *drvr)
-{
-	pr_err("%s: executing\n", __func__);
-	return 0;
-}
-
-static void brcmf_cyw_detach(struct brcmf_pub *drvr)
-{
-	pr_err("%s: executing\n", __func__);
-}
-
 static int brcmf_cyw_set_sae_pwd(struct brcmf_if *ifp,
 				 struct cfg80211_crypto_settings *crypto)
 {
@@ -49,7 +38,5 @@ static int brcmf_cyw_set_sae_pwd(struct brcmf_if *ifp,
 }
 
 const struct brcmf_fwvid_ops brcmf_cyw_ops = {
-	.attach = brcmf_cyw_attach,
-	.detach = brcmf_cyw_detach,
 	.set_sae_password = brcmf_cyw_set_sae_pwd,
 };
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.c
index 86eafdb40541..f633e2bbd891 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.c
@@ -89,8 +89,7 @@ int brcmf_fwvid_register_vendor(enum brcmf_fwvendor fwvid, struct module *vmod,
 	if (fwvid >= BRCMF_FWVENDOR_NUM)
 		return -ERANGE;
 
-	if (WARN_ON(!vmod) || WARN_ON(!vops) ||
-	    WARN_ON(!vops->attach) || WARN_ON(!vops->detach))
+	if (WARN_ON(!vmod) || WARN_ON(!vops))
 		return -EINVAL;
 
 	if (WARN_ON(fwvid_list[fwvid].vmod))
@@ -150,7 +149,7 @@ static inline int brcmf_fwvid_request_module(enum brcmf_fwvendor fwvid)
 }
 #endif
 
-int brcmf_fwvid_attach_ops(struct brcmf_pub *drvr)
+int brcmf_fwvid_attach(struct brcmf_pub *drvr)
 {
 	enum brcmf_fwvendor fwvid = drvr->bus_if->fwvid;
 	int ret;
@@ -175,7 +174,7 @@ int brcmf_fwvid_attach_ops(struct brcmf_pub *drvr)
 	return ret;
 }
 
-void brcmf_fwvid_detach_ops(struct brcmf_pub *drvr)
+void brcmf_fwvid_detach(struct brcmf_pub *drvr)
 {
 	enum brcmf_fwvendor fwvid = drvr->bus_if->fwvid;
 
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.h
index d9fc76b46db9..dac22534d033 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.h
@@ -12,8 +12,6 @@ struct brcmf_pub;
 struct brcmf_if;
 
 struct brcmf_fwvid_ops {
-	int (*attach)(struct brcmf_pub *drvr);
-	void (*detach)(struct brcmf_pub *drvr);
 	void (*feat_attach)(struct brcmf_if *ifp);
 	int (*set_sae_password)(struct brcmf_if *ifp, struct cfg80211_crypto_settings *crypto);
 };
@@ -24,30 +22,10 @@ int brcmf_fwvid_register_vendor(enum brcmf_fwvendor fwvid, struct module *mod,
 int brcmf_fwvid_unregister_vendor(enum brcmf_fwvendor fwvid, struct module *mod);
 
 /* core driver functions */
-int brcmf_fwvid_attach_ops(struct brcmf_pub *drvr);
-void brcmf_fwvid_detach_ops(struct brcmf_pub *drvr);
+int brcmf_fwvid_attach(struct brcmf_pub *drvr);
+void brcmf_fwvid_detach(struct brcmf_pub *drvr);
 const char *brcmf_fwvid_vendor_name(struct brcmf_pub *drvr);
 
-static inline int brcmf_fwvid_attach(struct brcmf_pub *drvr)
-{
-	int ret;
-
-	ret = brcmf_fwvid_attach_ops(drvr);
-	if (ret)
-		return ret;
-
-	return drvr->vops->attach(drvr);
-}
-
-static inline void brcmf_fwvid_detach(struct brcmf_pub *drvr)
-{
-	if (!drvr->vops)
-		return;
-
-	drvr->vops->detach(drvr);
-	brcmf_fwvid_detach_ops(drvr);
-}
-
 static inline void brcmf_fwvid_feat_attach(struct brcmf_if *ifp)
 {
 	const struct brcmf_fwvid_ops *vops = ifp->drvr->vops;
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/wcc/core.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/wcc/core.c
index 2d8f80bd7382..fd593b93ad40 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/wcc/core.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/wcc/core.c
@@ -7,21 +7,10 @@
 #include <core.h>
 #include <bus.h>
 #include <fwvid.h>
-#include <fwil.h>
+#include <cfg80211.h>
 
 #include "vops.h"
 
-static int brcmf_wcc_attach(struct brcmf_pub *drvr)
-{
-	pr_debug("%s: executing\n", __func__);
-	return 0;
-}
-
-static void brcmf_wcc_detach(struct brcmf_pub *drvr)
-{
-	pr_debug("%s: executing\n", __func__);
-}
-
 static int brcmf_wcc_set_sae_pwd(struct brcmf_if *ifp,
 				 struct cfg80211_crypto_settings *crypto)
 {
@@ -30,7 +19,5 @@ static int brcmf_wcc_set_sae_pwd(struct brcmf_if *ifp,
 }
 
 const struct brcmf_fwvid_ops brcmf_wcc_ops = {
-	.attach = brcmf_wcc_attach,
-	.detach = brcmf_wcc_detach,
 	.set_sae_password = brcmf_wcc_set_sae_pwd,
 };
-- 
cgit v1.2.3


From b822015a1f57268f5b2ff656736dc4004e7097da Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend.vanspriel@broadcom.com>
Date: Sat, 6 Jan 2024 11:38:34 +0100
Subject: wifi: brcmfmac: avoid invalid list operation when vendor attach fails

When the brcmf_fwvid_attach() fails the driver instance is not added
to the vendor list. Hence we should not try to delete it from that
list when the brcmf_fwvid_detach() function is called in cleanup path.

Cc: stable@vger.kernel.org # 6.2.x
Fixes: d6a5c562214f ("wifi: brcmfmac: add support for vendor-specific firmware api")
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240106103835.269149-3-arend.vanspriel@broadcom.com
---
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

(limited to 'drivers/net/wireless/broadcom/brcm80211/brcmfmac')

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.c
index f633e2bbd891..b427782554b5 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.c
@@ -186,9 +186,10 @@ void brcmf_fwvid_detach(struct brcmf_pub *drvr)
 
 	mutex_lock(&fwvid_list_lock);
 
-	drvr->vops = NULL;
-	list_del(&drvr->bus_if->list);
-
+	if (drvr->vops) {
+		drvr->vops = NULL;
+		list_del(&drvr->bus_if->list);
+	}
 	mutex_unlock(&fwvid_list_lock);
 }
 
-- 
cgit v1.2.3


From edec42821911a68317a611a2c2434a80c48bd3c0 Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend.vanspriel@broadcom.com>
Date: Sat, 6 Jan 2024 11:38:35 +0100
Subject: wifi: brcmfmac: allow per-vendor event handling

The firmware interface also defines events generated by
firmware on the device. As the get/set primitives the
events are likely to diverge between the vendors so this
commit adds support for per-vendor handling. The number
of events may differ so we let the vendor-specific code
allocate the struct brcmf_fweh_info which contains array
of event handlers. The existing event enumeration will be
used by the higher layers and thus are common definitions.
The vendor-specific code can provide a mapping table for
converting the common definition to the vendor-specific
firmware event definition and vice-versa.

Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240106103835.269149-4-arend.vanspriel@broadcom.com
---
 .../broadcom/brcm80211/brcmfmac/bca/core.c         |  17 +++
 .../wireless/broadcom/brcm80211/brcmfmac/common.c  |  18 ++-
 .../wireless/broadcom/brcm80211/brcmfmac/core.c    |  10 +-
 .../wireless/broadcom/brcm80211/brcmfmac/core.h    |   2 +-
 .../broadcom/brcm80211/brcmfmac/cyw/core.c         |  17 +++
 .../wireless/broadcom/brcm80211/brcmfmac/fweh.c    | 154 +++++++++++++++------
 .../wireless/broadcom/brcm80211/brcmfmac/fweh.h    |  60 ++++++--
 .../wireless/broadcom/brcm80211/brcmfmac/fwvid.c   |   3 +-
 .../wireless/broadcom/brcm80211/brcmfmac/fwvid.h   |   9 ++
 .../broadcom/brcm80211/brcmfmac/wcc/core.c         |  17 +++
 10 files changed, 244 insertions(+), 63 deletions(-)

(limited to 'drivers/net/wireless/broadcom/brcm80211/brcmfmac')

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bca/core.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bca/core.c
index a963c242975a..f471c962104a 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bca/core.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bca/core.c
@@ -11,12 +11,29 @@
 
 #include "vops.h"
 
+#define BRCMF_BCA_E_LAST		212
+
 static void brcmf_bca_feat_attach(struct brcmf_if *ifp)
 {
 	/* SAE support not confirmed so disabling for now */
 	ifp->drvr->feat_flags &= ~BIT(BRCMF_FEAT_SAE);
 }
 
+static int brcmf_bca_alloc_fweh_info(struct brcmf_pub *drvr)
+{
+	struct brcmf_fweh_info *fweh;
+
+	fweh = kzalloc(struct_size(fweh, evt_handler, BRCMF_BCA_E_LAST),
+		       GFP_KERNEL);
+	if (!fweh)
+		return -ENOMEM;
+
+	fweh->num_event_codes = BRCMF_BCA_E_LAST;
+	drvr->fweh = fweh;
+	return 0;
+}
+
 const struct brcmf_fwvid_ops brcmf_bca_ops = {
 	.feat_attach = brcmf_bca_feat_attach,
+	.alloc_fweh_info = brcmf_bca_alloc_fweh_info,
 };
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
index b6d458e022fa..b24faae35873 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
@@ -266,7 +266,7 @@ static int brcmf_c_process_cal_blob(struct brcmf_if *ifp)
 int brcmf_c_preinit_dcmds(struct brcmf_if *ifp)
 {
 	struct brcmf_pub *drvr = ifp->drvr;
-	s8 eventmask[BRCMF_EVENTING_MASK_LEN];
+	struct brcmf_fweh_info *fweh = drvr->fweh;
 	u8 buf[BRCMF_DCMD_SMLEN];
 	struct brcmf_bus *bus;
 	struct brcmf_rev_info_le revinfo;
@@ -413,15 +413,21 @@ int brcmf_c_preinit_dcmds(struct brcmf_if *ifp)
 	brcmf_c_set_joinpref_default(ifp);
 
 	/* Setup event_msgs, enable E_IF */
-	err = brcmf_fil_iovar_data_get(ifp, "event_msgs", eventmask,
-				       BRCMF_EVENTING_MASK_LEN);
+	err = brcmf_fil_iovar_data_get(ifp, "event_msgs", fweh->event_mask,
+				       fweh->event_mask_len);
 	if (err) {
 		bphy_err(drvr, "Get event_msgs error (%d)\n", err);
 		goto done;
 	}
-	setbit(eventmask, BRCMF_E_IF);
-	err = brcmf_fil_iovar_data_set(ifp, "event_msgs", eventmask,
-				       BRCMF_EVENTING_MASK_LEN);
+	/*
+	 * BRCMF_E_IF can safely be used to set the appropriate bit
+	 * in the event_mask as the firmware event code is guaranteed
+	 * to match the value of BRCMF_E_IF because it is old cruft
+	 * that all vendors have.
+	 */
+	setbit(fweh->event_mask, BRCMF_E_IF);
+	err = brcmf_fil_iovar_data_set(ifp, "event_msgs", fweh->event_mask,
+				       fweh->event_mask_len);
 	if (err) {
 		bphy_err(drvr, "Set event_msgs error (%d)\n", err);
 		goto done;
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
index a92f78026cfd..bf91b1e1368f 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
@@ -1348,13 +1348,17 @@ int brcmf_attach(struct device *dev)
 		goto fail;
 	}
 
+	/* attach firmware event handler */
+	ret = brcmf_fweh_attach(drvr);
+	if (ret != 0) {
+		bphy_err(drvr, "brcmf_fweh_attach failed\n");
+		goto fail;
+	}
+
 	/* Attach to events important for core code */
 	brcmf_fweh_register(drvr, BRCMF_E_PSM_WATCHDOG,
 			    brcmf_psm_watchdog_notify);
 
-	/* attach firmware event handler */
-	brcmf_fweh_attach(drvr);
-
 	ret = brcmf_bus_started(drvr, drvr->ops);
 	if (ret != 0) {
 		bphy_err(drvr, "dongle is not responding: err=%d\n", ret);
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h
index e4f911dd414b..ea76b8d33401 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h
@@ -122,7 +122,7 @@ struct brcmf_pub {
 	struct mutex proto_block;
 	unsigned char proto_buf[BRCMF_DCMD_MAXLEN];
 
-	struct brcmf_fweh_info fweh;
+	struct brcmf_fweh_info *fweh;
 
 	struct brcmf_ampdu_rx_reorder
 		*reorder_flows[BRCMF_AMPDU_RX_REORDER_MAXFLOWS];
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cyw/core.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cyw/core.c
index bec5748310b9..9a4837881486 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cyw/core.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cyw/core.c
@@ -11,6 +11,8 @@
 
 #include "vops.h"
 
+#define BRCMF_CYW_E_LAST		197
+
 static int brcmf_cyw_set_sae_pwd(struct brcmf_if *ifp,
 				 struct cfg80211_crypto_settings *crypto)
 {
@@ -37,6 +39,21 @@ static int brcmf_cyw_set_sae_pwd(struct brcmf_if *ifp,
 	return err;
 }
 
+static int brcmf_cyw_alloc_fweh_info(struct brcmf_pub *drvr)
+{
+	struct brcmf_fweh_info *fweh;
+
+	fweh = kzalloc(struct_size(fweh, evt_handler, BRCMF_CYW_E_LAST),
+		       GFP_KERNEL);
+	if (!fweh)
+		return -ENOMEM;
+
+	fweh->num_event_codes = BRCMF_CYW_E_LAST;
+	drvr->fweh = fweh;
+	return 0;
+}
+
 const struct brcmf_fwvid_ops brcmf_cyw_ops = {
 	.set_sae_password = brcmf_cyw_set_sae_pwd,
+	.alloc_fweh_info = brcmf_cyw_alloc_fweh_info,
 };
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c
index 68960ae98987..0774f6c59226 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c
@@ -14,7 +14,8 @@
 #include "fweh.h"
 #include "fwil.h"
 #include "proto.h"
-
+#include "bus.h"
+#include "fwvid.h"
 /**
  * struct brcmf_fweh_queue_item - event item on event queue.
  *
@@ -28,7 +29,7 @@
  */
 struct brcmf_fweh_queue_item {
 	struct list_head q;
-	enum brcmf_fweh_event_code code;
+	u32 code;
 	u8 ifidx;
 	u8 ifaddr[ETH_ALEN];
 	struct brcmf_event_msg_be emsg;
@@ -94,7 +95,7 @@ static void brcmf_fweh_queue_event(struct brcmf_fweh_info *fweh,
 
 static int brcmf_fweh_call_event_handler(struct brcmf_pub *drvr,
 					 struct brcmf_if *ifp,
-					 enum brcmf_fweh_event_code code,
+					 u32 fwcode,
 					 struct brcmf_event_msg *emsg,
 					 void *data)
 {
@@ -102,13 +103,13 @@ static int brcmf_fweh_call_event_handler(struct brcmf_pub *drvr,
 	int err = -EINVAL;
 
 	if (ifp) {
-		fweh = &ifp->drvr->fweh;
+		fweh = ifp->drvr->fweh;
 
 		/* handle the event if valid interface and handler */
-		if (fweh->evt_handler[code])
-			err = fweh->evt_handler[code](ifp, emsg, data);
+		if (fweh->evt_handler[fwcode])
+			err = fweh->evt_handler[fwcode](ifp, emsg, data);
 		else
-			bphy_err(drvr, "unhandled event %d ignored\n", code);
+			bphy_err(drvr, "unhandled fwevt %d ignored\n", fwcode);
 	} else {
 		bphy_err(drvr, "no interface object\n");
 	}
@@ -142,7 +143,7 @@ static void brcmf_fweh_handle_if_event(struct brcmf_pub *drvr,
 	is_p2pdev = ((ifevent->flags & BRCMF_E_IF_FLAG_NOIF) &&
 		     (ifevent->role == BRCMF_E_IF_ROLE_P2P_CLIENT ||
 		      ((ifevent->role == BRCMF_E_IF_ROLE_STA) &&
-		       (drvr->fweh.p2pdev_setup_ongoing))));
+		       (drvr->fweh->p2pdev_setup_ongoing))));
 	if (!is_p2pdev && (ifevent->flags & BRCMF_E_IF_FLAG_NOIF)) {
 		brcmf_dbg(EVENT, "event can be ignored\n");
 		return;
@@ -163,7 +164,7 @@ static void brcmf_fweh_handle_if_event(struct brcmf_pub *drvr,
 			return;
 		if (!is_p2pdev)
 			brcmf_proto_add_if(drvr, ifp);
-		if (!drvr->fweh.evt_handler[BRCMF_E_IF])
+		if (!drvr->fweh->evt_handler[BRCMF_E_IF])
 			if (brcmf_net_attach(ifp, false) < 0)
 				return;
 	}
@@ -183,6 +184,45 @@ static void brcmf_fweh_handle_if_event(struct brcmf_pub *drvr,
 	}
 }
 
+static void brcmf_fweh_map_event_code(struct brcmf_fweh_info *fweh,
+				      enum brcmf_fweh_event_code code,
+				      u32 *fw_code)
+{
+	int i;
+
+	if (WARN_ON(!fw_code))
+		return;
+
+	*fw_code = code;
+	if (fweh->event_map) {
+		for (i = 0; i < fweh->event_map->n_items; i++) {
+			if (fweh->event_map->items[i].code == code) {
+				*fw_code = fweh->event_map->items[i].fwevt_code;
+				break;
+			}
+		}
+	}
+}
+
+static void brcmf_fweh_map_fwevt_code(struct brcmf_fweh_info *fweh, u32 fw_code,
+				      enum brcmf_fweh_event_code *code)
+{
+	int i;
+
+	if (WARN_ON(!code))
+		return;
+
+	*code = fw_code;
+	if (fweh->event_map) {
+		for (i = 0; i < fweh->event_map->n_items; i++) {
+			if (fweh->event_map->items[i].fwevt_code == fw_code) {
+				*code = fweh->event_map->items[i].code;
+				break;
+			}
+		}
+	}
+}
+
 /**
  * brcmf_fweh_dequeue_event() - get event from the queue.
  *
@@ -221,15 +261,19 @@ static void brcmf_fweh_event_worker(struct work_struct *work)
 	struct brcmf_event_msg emsg;
 
 	fweh = container_of(work, struct brcmf_fweh_info, event_work);
-	drvr = container_of(fweh, struct brcmf_pub, fweh);
+	drvr = fweh->drvr;
 
 	while ((event = brcmf_fweh_dequeue_event(fweh))) {
-		brcmf_dbg(EVENT, "event %s (%u) ifidx %u bsscfg %u addr %pM\n",
-			  brcmf_fweh_event_name(event->code), event->code,
+		enum brcmf_fweh_event_code code;
+
+		brcmf_fweh_map_fwevt_code(fweh, event->code, &code);
+		brcmf_dbg(EVENT, "event %s (%u:%u) ifidx %u bsscfg %u addr %pM\n",
+			  brcmf_fweh_event_name(code), code, event->code,
 			  event->emsg.ifidx, event->emsg.bsscfgidx,
 			  event->emsg.addr);
 		if (event->emsg.bsscfgidx >= BRCMF_MAX_IFS) {
-			bphy_err(drvr, "invalid bsscfg index: %u\n", event->emsg.bsscfgidx);
+			bphy_err(drvr, "invalid bsscfg index: %u\n",
+				 event->emsg.bsscfgidx);
 			goto event_free;
 		}
 
@@ -237,7 +281,7 @@ static void brcmf_fweh_event_worker(struct work_struct *work)
 		emsg_be = &event->emsg;
 		emsg.version = be16_to_cpu(emsg_be->version);
 		emsg.flags = be16_to_cpu(emsg_be->flags);
-		emsg.event_code = event->code;
+		emsg.event_code = code;
 		emsg.status = be32_to_cpu(emsg_be->status);
 		emsg.reason = be32_to_cpu(emsg_be->reason);
 		emsg.auth_type = be32_to_cpu(emsg_be->auth_type);
@@ -283,7 +327,7 @@ event_free:
  */
 void brcmf_fweh_p2pdev_setup(struct brcmf_if *ifp, bool ongoing)
 {
-	ifp->drvr->fweh.p2pdev_setup_ongoing = ongoing;
+	ifp->drvr->fweh->p2pdev_setup_ongoing = ongoing;
 }
 
 /**
@@ -291,12 +335,27 @@ void brcmf_fweh_p2pdev_setup(struct brcmf_if *ifp, bool ongoing)
  *
  * @drvr: driver information object.
  */
-void brcmf_fweh_attach(struct brcmf_pub *drvr)
+int brcmf_fweh_attach(struct brcmf_pub *drvr)
 {
-	struct brcmf_fweh_info *fweh = &drvr->fweh;
+	struct brcmf_fweh_info *fweh;
+	int err;
+
+	err = brcmf_fwvid_alloc_fweh_info(drvr);
+	if (err < 0)
+		return err;
+
+	fweh = drvr->fweh;
+	fweh->drvr = drvr;
+
+	fweh->event_mask_len = DIV_ROUND_UP(fweh->num_event_codes, 8);
+	fweh->event_mask = kzalloc(fweh->event_mask_len, GFP_KERNEL);
+	if (!fweh->event_mask)
+		return -ENOMEM;
+
 	INIT_WORK(&fweh->event_work, brcmf_fweh_event_worker);
 	spin_lock_init(&fweh->evt_q_lock);
 	INIT_LIST_HEAD(&fweh->event_q);
+	return 0;
 }
 
 /**
@@ -306,14 +365,19 @@ void brcmf_fweh_attach(struct brcmf_pub *drvr)
  */
 void brcmf_fweh_detach(struct brcmf_pub *drvr)
 {
-	struct brcmf_fweh_info *fweh = &drvr->fweh;
+	struct brcmf_fweh_info *fweh = drvr->fweh;
+
+	if (!fweh)
+		return;
 
 	/* cancel the worker if initialized */
 	if (fweh->event_work.func) {
 		cancel_work_sync(&fweh->event_work);
 		WARN_ON(!list_empty(&fweh->event_q));
-		memset(fweh->evt_handler, 0, sizeof(fweh->evt_handler));
 	}
+	drvr->fweh = NULL;
+	kfree(fweh->event_mask);
+	kfree(fweh);
 }
 
 /**
@@ -326,11 +390,17 @@ void brcmf_fweh_detach(struct brcmf_pub *drvr)
 int brcmf_fweh_register(struct brcmf_pub *drvr, enum brcmf_fweh_event_code code,
 			brcmf_fweh_handler_t handler)
 {
-	if (drvr->fweh.evt_handler[code]) {
+	struct brcmf_fweh_info *fweh = drvr->fweh;
+	u32 evt_handler_idx;
+
+	brcmf_fweh_map_event_code(fweh, code, &evt_handler_idx);
+
+	if (fweh->evt_handler[evt_handler_idx]) {
 		bphy_err(drvr, "event code %d already registered\n", code);
 		return -ENOSPC;
 	}
-	drvr->fweh.evt_handler[code] = handler;
+
+	fweh->evt_handler[evt_handler_idx] = handler;
 	brcmf_dbg(TRACE, "event handler registered for %s\n",
 		  brcmf_fweh_event_name(code));
 	return 0;
@@ -345,9 +415,12 @@ int brcmf_fweh_register(struct brcmf_pub *drvr, enum brcmf_fweh_event_code code,
 void brcmf_fweh_unregister(struct brcmf_pub *drvr,
 			   enum brcmf_fweh_event_code code)
 {
+	u32 evt_handler_idx;
+
 	brcmf_dbg(TRACE, "event handler cleared for %s\n",
 		  brcmf_fweh_event_name(code));
-	drvr->fweh.evt_handler[code] = NULL;
+	brcmf_fweh_map_event_code(drvr->fweh, code, &evt_handler_idx);
+	drvr->fweh->evt_handler[evt_handler_idx] = NULL;
 }
 
 /**
@@ -357,27 +430,28 @@ void brcmf_fweh_unregister(struct brcmf_pub *drvr,
  */
 int brcmf_fweh_activate_events(struct brcmf_if *ifp)
 {
-	struct brcmf_pub *drvr = ifp->drvr;
+	struct brcmf_fweh_info *fweh = ifp->drvr->fweh;
+	enum brcmf_fweh_event_code code;
 	int i, err;
-	s8 eventmask[BRCMF_EVENTING_MASK_LEN];
 
-	memset(eventmask, 0, sizeof(eventmask));
-	for (i = 0; i < BRCMF_E_LAST; i++) {
-		if (ifp->drvr->fweh.evt_handler[i]) {
+	memset(fweh->event_mask, 0, fweh->event_mask_len);
+	for (i = 0; i < fweh->num_event_codes; i++) {
+		if (fweh->evt_handler[i]) {
+			brcmf_fweh_map_fwevt_code(fweh, i, &code);
 			brcmf_dbg(EVENT, "enable event %s\n",
-				  brcmf_fweh_event_name(i));
-			setbit(eventmask, i);
+				  brcmf_fweh_event_name(code));
+			setbit(fweh->event_mask, i);
 		}
 	}
 
 	/* want to handle IF event as well */
 	brcmf_dbg(EVENT, "enable event IF\n");
-	setbit(eventmask, BRCMF_E_IF);
+	setbit(fweh->event_mask, BRCMF_E_IF);
 
-	err = brcmf_fil_iovar_data_set(ifp, "event_msgs",
-				       eventmask, BRCMF_EVENTING_MASK_LEN);
+	err = brcmf_fil_iovar_data_set(ifp, "event_msgs", fweh->event_mask,
+				       fweh->event_mask_len);
 	if (err)
-		bphy_err(drvr, "Set event_msgs error (%d)\n", err);
+		bphy_err(fweh->drvr, "Set event_msgs error (%d)\n", err);
 
 	return err;
 }
@@ -397,21 +471,21 @@ void brcmf_fweh_process_event(struct brcmf_pub *drvr,
 			      struct brcmf_event *event_packet,
 			      u32 packet_len, gfp_t gfp)
 {
-	enum brcmf_fweh_event_code code;
-	struct brcmf_fweh_info *fweh = &drvr->fweh;
+	u32 fwevt_idx;
+	struct brcmf_fweh_info *fweh = drvr->fweh;
 	struct brcmf_fweh_queue_item *event;
 	void *data;
 	u32 datalen;
 
 	/* get event info */
-	code = get_unaligned_be32(&event_packet->msg.event_type);
+	fwevt_idx = get_unaligned_be32(&event_packet->msg.event_type);
 	datalen = get_unaligned_be32(&event_packet->msg.datalen);
 	data = &event_packet[1];
 
-	if (code >= BRCMF_E_LAST)
+	if (fwevt_idx >= fweh->num_event_codes)
 		return;
 
-	if (code != BRCMF_E_IF && !fweh->evt_handler[code])
+	if (fwevt_idx != BRCMF_E_IF && !fweh->evt_handler[fwevt_idx])
 		return;
 
 	if (datalen > BRCMF_DCMD_MAXLEN ||
@@ -422,13 +496,13 @@ void brcmf_fweh_process_event(struct brcmf_pub *drvr,
 	if (!event)
 		return;
 
-	event->datalen = datalen;
-	event->code = code;
+	event->code = fwevt_idx;
 	event->ifidx = event_packet->msg.ifidx;
 
 	/* use memcpy to get aligned event message */
 	memcpy(&event->emsg, &event_packet->msg, sizeof(event->emsg));
 	memcpy(event->data, data, datalen);
+	event->datalen = datalen;
 	memcpy(event->ifaddr, event_packet->eth.h_dest, ETH_ALEN);
 
 	brcmf_fweh_queue_event(fweh, event);
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.h
index 48414e8b9389..9ca1b2aadcb5 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.h
@@ -17,6 +17,10 @@ struct brcmf_pub;
 struct brcmf_if;
 struct brcmf_cfg80211_info;
 
+#define BRCMF_ABSTRACT_EVENT_BIT	BIT(31)
+#define BRCMF_ABSTRACT_ENUM_DEF(_id, _val) \
+	BRCMF_ENUM_DEF(_id, (BRCMF_ABSTRACT_EVENT_BIT | (_val)))
+
 /* list of firmware events */
 #define BRCMF_FWEH_EVENT_ENUM_DEFLIST \
 	BRCMF_ENUM_DEF(SET_SSID, 0) \
@@ -98,16 +102,9 @@ struct brcmf_cfg80211_info;
 /* firmware event codes sent by the dongle */
 enum brcmf_fweh_event_code {
 	BRCMF_FWEH_EVENT_ENUM_DEFLIST
-	/* this determines event mask length which must match
-	 * minimum length check in device firmware so it is
-	 * hard-coded here.
-	 */
-	BRCMF_E_LAST = 139
 };
 #undef BRCMF_ENUM_DEF
 
-#define BRCMF_EVENTING_MASK_LEN		DIV_ROUND_UP(BRCMF_E_LAST, 8)
-
 /* flags field values in struct brcmf_event_msg */
 #define BRCMF_EVENT_MSG_LINK		0x01
 #define BRCMF_EVENT_MSG_FLUSHTXQ	0x02
@@ -287,6 +284,33 @@ typedef int (*brcmf_fweh_handler_t)(struct brcmf_if *ifp,
 				    const struct brcmf_event_msg *evtmsg,
 				    void *data);
 
+/**
+ * struct brcmf_fweh_event_map_item - fweh event and firmware event pair.
+ *
+ * @code: fweh event code as used by higher layers.
+ * @fwevt_code: firmware event code as used by firmware.
+ *
+ * This mapping is needed when a functionally identical event has a
+ * different numerical definition between vendors. When such mapping
+ * is needed the higher layer event code should not collide with the
+ * firmware event.
+ */
+struct brcmf_fweh_event_map_item {
+	enum brcmf_fweh_event_code code;
+	u32 fwevt_code;
+};
+
+/**
+ * struct brcmf_fweh_event_map - mapping between firmware event and fweh event.
+ *
+ * @n_items: number of mapping items.
+ * @items: array of fweh event and firmware event pairs.
+ */
+struct brcmf_fweh_event_map {
+	u32 n_items;
+	const struct brcmf_fweh_event_map_item items[] __counted_by(n_items);
+};
+
 /**
  * struct brcmf_fweh_info - firmware event handling information.
  *
@@ -294,21 +318,33 @@ typedef int (*brcmf_fweh_handler_t)(struct brcmf_if *ifp,
  * @event_work: event worker.
  * @evt_q_lock: lock for event queue protection.
  * @event_q: event queue.
- * @evt_handler: registered event handlers.
+ * @event_mask_len: length of @event_mask used to enable firmware events.
+ * @event_mask: byte array used in 'event_msgs' iovar command.
+ * @event_map: mapping between fweh event and firmware event which
+ *	may be provided by vendor-specific module for events that need
+ *	mapping.
+ * @num_event_codes: number of firmware events supported by firmware which
+ *	does a minimum length check for the @event_mask. This value is to
+ *	be provided by vendor-specific module determining @event_mask_len
+ *	and consequently the allocation size for @event_mask.
+ * @evt_handler: event handler registry indexed by firmware event code.
  */
 struct brcmf_fweh_info {
+	struct brcmf_pub *drvr;
 	bool p2pdev_setup_ongoing;
 	struct work_struct event_work;
 	spinlock_t evt_q_lock;
 	struct list_head event_q;
-	int (*evt_handler[BRCMF_E_LAST])(struct brcmf_if *ifp,
-					 const struct brcmf_event_msg *evtmsg,
-					 void *data);
+	uint event_mask_len;
+	u8 *event_mask;
+	struct brcmf_fweh_event_map *event_map;
+	uint num_event_codes;
+	brcmf_fweh_handler_t evt_handler[] __counted_by(num_event_codes);
 };
 
 const char *brcmf_fweh_event_name(enum brcmf_fweh_event_code code);
 
-void brcmf_fweh_attach(struct brcmf_pub *drvr);
+int brcmf_fweh_attach(struct brcmf_pub *drvr);
 void brcmf_fweh_detach(struct brcmf_pub *drvr);
 int brcmf_fweh_register(struct brcmf_pub *drvr, enum brcmf_fweh_event_code code,
 			int (*handler)(struct brcmf_if *ifp,
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.c
index b427782554b5..41eafcda77f7 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.c
@@ -89,7 +89,8 @@ int brcmf_fwvid_register_vendor(enum brcmf_fwvendor fwvid, struct module *vmod,
 	if (fwvid >= BRCMF_FWVENDOR_NUM)
 		return -ERANGE;
 
-	if (WARN_ON(!vmod) || WARN_ON(!vops))
+	if (WARN_ON(!vmod) || WARN_ON(!vops) ||
+	    WARN_ON(!vops->alloc_fweh_info))
 		return -EINVAL;
 
 	if (WARN_ON(fwvid_list[fwvid].vmod))
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.h
index dac22534d033..e6ac9fc341bc 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.h
@@ -14,6 +14,7 @@ struct brcmf_if;
 struct brcmf_fwvid_ops {
 	void (*feat_attach)(struct brcmf_if *ifp);
 	int (*set_sae_password)(struct brcmf_if *ifp, struct cfg80211_crypto_settings *crypto);
+	int (*alloc_fweh_info)(struct brcmf_pub *drvr);
 };
 
 /* exported functions */
@@ -47,4 +48,12 @@ static inline int brcmf_fwvid_set_sae_password(struct brcmf_if *ifp,
 	return vops->set_sae_password(ifp, crypto);
 }
 
+static inline int brcmf_fwvid_alloc_fweh_info(struct brcmf_pub *drvr)
+{
+	if (!drvr->vops)
+		return -EIO;
+
+	return drvr->vops->alloc_fweh_info(drvr);
+}
+
 #endif /* FWVID_H_ */
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/wcc/core.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/wcc/core.c
index fd593b93ad40..05d7c2a4fba5 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/wcc/core.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/wcc/core.c
@@ -11,6 +11,8 @@
 
 #include "vops.h"
 
+#define BRCMF_WCC_E_LAST		213
+
 static int brcmf_wcc_set_sae_pwd(struct brcmf_if *ifp,
 				 struct cfg80211_crypto_settings *crypto)
 {
@@ -18,6 +20,21 @@ static int brcmf_wcc_set_sae_pwd(struct brcmf_if *ifp,
 			      BRCMF_WSEC_PASSPHRASE);
 }
 
+static int brcmf_wcc_alloc_fweh_info(struct brcmf_pub *drvr)
+{
+	struct brcmf_fweh_info *fweh;
+
+	fweh = kzalloc(struct_size(fweh, evt_handler, BRCMF_WCC_E_LAST),
+		       GFP_KERNEL);
+	if (!fweh)
+		return -ENOMEM;
+
+	fweh->num_event_codes = BRCMF_WCC_E_LAST;
+	drvr->fweh = fweh;
+	return 0;
+}
+
 const struct brcmf_fwvid_ops brcmf_wcc_ops = {
 	.set_sae_password = brcmf_wcc_set_sae_pwd,
+	.alloc_fweh_info = brcmf_wcc_alloc_fweh_info,
 };
-- 
cgit v1.2.3


From 26f0dc8a705ae182eaa126cef0a9870d1a87a5ac Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend.vanspriel@broadcom.com>
Date: Sun, 28 Jan 2024 10:30:56 +0100
Subject: wifi: brcmfmac: add linefeed at end of file

The following sparse warning was reported:

drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.c:432:49:
  warning: no newline at end of file

Fixes: 31343230abb1 ("wifi: brcmfmac: export firmware interface functions")
Reported-by: Jakub Kicinski <kuba@kernel.org>
Closes: https://lore.kernel.org/all/20240125165128.7e43a1f3@kernel.org/
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240128093057.164791-2-arend.vanspriel@broadcom.com
---
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/net/wireless/broadcom/brcm80211/brcmfmac')

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.c
index bc1c6b5a6e31..6385a7db7f7d 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.c
@@ -429,4 +429,4 @@ s32 brcmf_fil_xtlv_data_get(struct brcmf_if *ifp, const char *name, u16 id,
 	mutex_unlock(&drvr->proto_block);
 	return err;
 }
-BRCMF_EXPORT_SYMBOL_GPL(brcmf_fil_xtlv_data_get);
\ No newline at end of file
+BRCMF_EXPORT_SYMBOL_GPL(brcmf_fil_xtlv_data_get);
-- 
cgit v1.2.3


From f20073f50dfd1e1232e44834c74db718ffd2149b Mon Sep 17 00:00:00 2001
From: Alexey Berezhok <a@bayrepo.ru>
Date: Thu, 8 Feb 2024 11:51:21 +0300
Subject: wifi: brcmfmac: do not cast hidden SSID attribute value to boolean

In 'brcmf_cfg80211_start_ap()', not assume that
NL80211_HIDDEN_SSID_NOT_IN_USE is zero but prefer
an explicit check instead. Compile tested only.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Signed-off-by: Alexey Berezhok <a@bayrepo.ru>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240208085121.2430-1-a@bayrepo.ru
---
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/net/wireless/broadcom/brcm80211/brcmfmac')

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
index d0cb39278cb9..adf8a14feb49 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
@@ -5274,7 +5274,7 @@ brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev,
 					      settings->hidden_ssid);
 		if (err) {
 			bphy_err(drvr, "%s closednet error (%d)\n",
-				 settings->hidden_ssid ?
+				 (settings->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE) ?
 				 "enabled" : "disabled",
 				 err);
 			goto exit;
-- 
cgit v1.2.3


From 32167707aa5e7ae4b160c18be79d85a7b4fdfcfb Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Fri, 16 Feb 2024 22:36:49 +0100
Subject: wifi: brcmfmac: Add DMI nvram filename quirk for ACEPC W5 Pro

The ACEPC W5 Pro HDMI stick contains quite generic names in the sys_vendor
and product_name DMI strings, without this patch brcmfmac will try to load:
"brcmfmac43455-sdio.$(DEFAULT_STRING)-$(DEFAULT_STRING).txt" as nvram file
which is both too generic and messy with the $ symbols in the name.

The ACEPC W5 Pro uses the same Ampak AP6255 module as the ACEPC T8
and the nvram for the T8 is already in linux-firmware, so point the new
DMI nvram filename quirk to the T8 nvram file.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240216213649.251718-1-hdegoede@redhat.com
---
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/dmi.c | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'drivers/net/wireless/broadcom/brcm80211/brcmfmac')

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/dmi.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/dmi.c
index 86ff174936a9..c3a602197662 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/dmi.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/dmi.c
@@ -82,6 +82,15 @@ static const struct dmi_system_id dmi_platform_data[] = {
 		},
 		.driver_data = (void *)&acepc_t8_data,
 	},
+	{
+		/* ACEPC W5 Pro Cherry Trail Z8350 HDMI stick, same wifi as the T8 */
+		.matches = {
+			DMI_MATCH(DMI_BOARD_NAME, "T3 MRD"),
+			DMI_MATCH(DMI_CHASSIS_TYPE, "3"),
+			DMI_MATCH(DMI_BIOS_VENDOR, "American Megatrends Inc."),
+		},
+		.driver_data = (void *)&acepc_t8_data,
+	},
 	{
 		/* Chuwi Hi8 Pro with D2D3_Hi8Pro.233 BIOS */
 		.matches = {
-- 
cgit v1.2.3


From ec1aae190c7729ffdd3603de311dc00f7ff988f9 Mon Sep 17 00:00:00 2001
From: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Date: Fri, 16 Feb 2024 13:27:56 -0600
Subject: wifi: brcmfmac: fweh: Fix boot crash on Raspberry Pi 4

Fix boot crash on Raspberry Pi by moving the update to `event->datalen`
before data is copied into flexible-array member `data` via `memcpy()`.

Flexible-array member `data` was annotated with `__counted_by(datalen)`
in commit 62d19b358088 ("wifi: brcmfmac: fweh: Add __counted_by for
struct brcmf_fweh_queue_item and use struct_size()"). The intention of
this is to gain visibility into the size of `data` at run-time through
its _counter_ (in this case `datalen`), and with this have its accesses
bounds-checked at run-time via CONFIG_FORTIFY_SOURCE and
CONFIG_UBSAN_BOUNDS.

To effectively accomplish the above, we shall update the counter
(`datalen`), before the first access to the flexible array (`data`),
which was also done in the mentioned commit.

However, commit edec42821911 ("wifi: brcmfmac: allow per-vendor event
handling") inadvertently caused a buffer overflow, detected by
FORTIFY_SOURCE. It moved the `event->datalen = datalen;` update to after
the first `data` access, at which point `event->datalen` was not yet
updated from zero (after calling `kzalloc()`), leading to the overflow
issue.

This fix repositions the `event->datalen = datalen;` update before
accessing `data`, restoring the intended buffer overflow protection. :)

Fixes: edec42821911 ("wifi: brcmfmac: allow per-vendor event handling")
Reported-by: Nathan Chancellor <nathan@kernel.org>
Closes: https://gist.github.com/nathanchance/e22f681f3bfc467f15cdf6605021aaa6
Tested-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/Zc+3PFCUvLoVlpg8@neat
---
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/net/wireless/broadcom/brcm80211/brcmfmac')

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c
index 0774f6c59226..f0b6a7607f16 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c
@@ -497,12 +497,12 @@ void brcmf_fweh_process_event(struct brcmf_pub *drvr,
 		return;
 
 	event->code = fwevt_idx;
+	event->datalen = datalen;
 	event->ifidx = event_packet->msg.ifidx;
 
 	/* use memcpy to get aligned event message */
 	memcpy(&event->emsg, &event_packet->msg, sizeof(event->emsg));
 	memcpy(event->data, data, datalen);
-	event->datalen = datalen;
 	memcpy(event->ifaddr, event_packet->eth.h_dest, ETH_ALEN);
 
 	brcmf_fweh_queue_event(fweh, event);
-- 
cgit v1.2.3


From 379e5e83f9f9a0d3d3318fee2f363278e7ab08e7 Mon Sep 17 00:00:00 2001
From: Alexey Berezhok <a@bayrepo.ru>
Date: Thu, 22 Feb 2024 15:29:23 +0300
Subject: wifi: brcmfmac: do not pass hidden SSID attribute as value directly

In brcmf_cfg80211_start_ap() do not assume that NL80211_HIDDEN_SSID_NOT_IN_USE
is zero but prefer an explicit check instead. Use local variable 'closednet'
to pass in function call and use for error message.

Compile tested only. Addition for the commit f20073f50dfd1 ("wifi: brcmfmac: do
not cast hidden SSID attribute value to boolean").

Signed-off-by: Alexey Berezhok <a@bayrepo.ru>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240222122923.46691-1-a@bayrepo.ru
---
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

(limited to 'drivers/net/wireless/broadcom/brcm80211/brcmfmac')

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
index adf8a14feb49..54ff59a8c35c 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
@@ -5101,6 +5101,7 @@ brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev,
 	bool mbss;
 	int is_11d;
 	bool supports_11d;
+	bool closednet;
 
 	brcmf_dbg(TRACE, "ctrlchn=%d, center=%d, bw=%d, beacon_interval=%d, dtim_period=%d,\n",
 		  settings->chandef.chan->hw_value,
@@ -5270,12 +5271,12 @@ brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev,
 			goto exit;
 		}
 
-		err = brcmf_fil_iovar_int_set(ifp, "closednet",
-					      settings->hidden_ssid);
+		closednet =
+			(settings->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
+		err = brcmf_fil_iovar_int_set(ifp, "closednet",	closednet);
 		if (err) {
 			bphy_err(drvr, "%s closednet error (%d)\n",
-				 (settings->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE) ?
-				 "enabled" : "disabled",
+				 (closednet ? "enabled" : "disabled"),
 				 err);
 			goto exit;
 		}
-- 
cgit v1.2.3


From b4152222e04cb8afeeca239c90e3fcaf4c553b42 Mon Sep 17 00:00:00 2001
From: Duoming Zhou <duoming@zju.edu.cn>
Date: Thu, 29 Feb 2024 18:31:53 +0800
Subject: wifi: brcm80211: handle pmk_op allocation failure

The kzalloc() in brcmf_pmksa_v3_op() will return null if the
physical memory has run out. As a result, if we dereference
the null value, the null pointer dereference bug will happen.

Return -ENOMEM from brcmf_pmksa_v3_op() if kzalloc() fails
for pmk_op.

Fixes: a96202acaea4 ("wifi: brcmfmac: cfg80211: Add support for PMKID_V3 operations")
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Duoming Zhou <duoming@zju.edu.cn>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240229103153.18533-1-duoming@zju.edu.cn
---
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'drivers/net/wireless/broadcom/brcm80211/brcmfmac')

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
index 54ff59a8c35c..b99aa66dc5a9 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
@@ -4308,6 +4308,9 @@ brcmf_pmksa_v3_op(struct brcmf_if *ifp, struct cfg80211_pmksa *pmksa,
 	int ret;
 
 	pmk_op = kzalloc(sizeof(*pmk_op), GFP_KERNEL);
+	if (!pmk_op)
+		return -ENOMEM;
+
 	pmk_op->version = cpu_to_le16(BRCMF_PMKSA_VER_3);
 
 	if (!pmksa) {
-- 
cgit v1.2.3