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From: "Alvin Šipraga" <alvin@pqrs.dk>
To: Arend van Spriel <aspriel@gmail.com>,
	Franky Lin <franky.lin@broadcom.com>,
	Hante Meuleman <hante.meuleman@broadcom.com>,
	Kalle Valo <kvalo@kernel.org>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>
Cc: "Ting-Ying Li" <tingying.li@cypress.com>,
	"Ahmad Fatoum" <a.fatoum@pengutronix.de>,
	"Alvin Šipraga" <alsi@bang-olufsen.dk>,
	linux-wireless@vger.kernel.org,
	brcm80211-dev-list.pdl@broadcom.com,
	SHA-cyfmac-dev-list@infineon.com, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH -next 2/2] brcmfmac: don't allow arp/nd offload to be enabled if ap mode exists
Date: Fri, 22 Jul 2022 14:29:55 +0200	[thread overview]
Message-ID: <20220722122956.841786-3-alvin@pqrs.dk> (raw)
In-Reply-To: <20220722122956.841786-1-alvin@pqrs.dk>

From: Ting-Ying Li <tingying.li@cypress.com>

Add a condition to determine whether arp/nd offload enabling
request is allowed. If there is any interface acts as ap
mode and is operating, then reject the request of arp oflload
enabling from cfg80211.

Signed-off-by: Ting-Ying Li <tingying.li@cypress.com>
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Alvin Šipraga <alsi@bang-olufsen.dk>
---
 .../broadcom/brcm80211/brcmfmac/cfg80211.c      | 17 ++++++++++++++++-
 .../broadcom/brcm80211/brcmfmac/cfg80211.h      |  1 +
 .../wireless/broadcom/brcm80211/brcmfmac/core.c |  5 +++++
 3 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
index 856fd5516ddf..29aa7613bcf3 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
@@ -770,6 +770,21 @@ void brcmf_set_mpc(struct brcmf_if *ifp, int mpc)
 	}
 }
 
+bool brcmf_is_apmode_operating(struct wiphy *wiphy)
+{
+	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
+	struct brcmf_cfg80211_vif *vif;
+	bool ret = false;
+
+	list_for_each_entry(vif, &cfg->vif_list, list) {
+		if (brcmf_is_apmode(vif) &&
+		    test_bit(BRCMF_VIF_STATUS_AP_CREATED, &vif->sme_state))
+			ret = true;
+	}
+
+	return ret;
+}
+
 s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
 				struct brcmf_if *ifp, bool aborted,
 				bool fw_abort)
@@ -5057,8 +5072,8 @@ static int brcmf_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *ndev,
 			bphy_err(drvr, "bss_enable config failed %d\n", err);
 	}
 	brcmf_set_mpc(ifp, 1);
-	brcmf_configure_arp_nd_offload(ifp, true);
 	clear_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
+	brcmf_configure_arp_nd_offload(ifp, true);
 	brcmf_net_setcarrier(ifp, false);
 
 	return err;
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.h
index e4ebc2fa6ebb..3133b6509870 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.h
@@ -468,5 +468,6 @@ s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
 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);
+bool brcmf_is_apmode_operating(struct wiphy *wiphy);
 
 #endif /* BRCMFMAC_CFG80211_H */
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
index 87aef211b35f..ab5ed4a9e57a 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c
@@ -97,6 +97,11 @@ void brcmf_configure_arp_nd_offload(struct brcmf_if *ifp, bool enable)
 	s32 err;
 	u32 mode;
 
+	if (enable && brcmf_is_apmode_operating(ifp->drvr->wiphy)) {
+		brcmf_dbg(TRACE, "Skip ARP/ND offload enable when soft AP is running\n");
+		return;
+	}
+
 	if (enable)
 		mode = BRCMF_ARP_OL_AGENT | BRCMF_ARP_OL_PEER_AUTO_REPLY;
 	else
-- 
2.37.0


  parent reply	other threads:[~2022-07-22 12:30 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-22 12:29 [PATCH -next 0/2] brcmfmac: AP STA concurrency patches from Cypress/Infineon Alvin Šipraga
2022-07-22 12:29 ` [PATCH -next 1/2] brcmfmac: Support multiple AP interfaces and fix STA disconnection issue Alvin Šipraga
2022-08-10 21:32   ` Franky Lin
2022-08-17  8:50     ` Alvin Šipraga
2022-08-22 17:12       ` Franky Lin
2022-08-23  9:03         ` Alvin Šipraga
2022-07-22 12:29 ` Alvin Šipraga [this message]
2022-08-10  5:40 ` [PATCH -next 0/2] brcmfmac: AP STA concurrency patches from Cypress/Infineon Kalle Valo

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