diff options
| author | Ting-Ying Li <tingying.li@cypress.com> | 2025-06-06 04:34:44 -0500 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2025-06-24 11:37:00 +0200 |
| commit | df56e58104b650bd5d87a93a38d1de9a36593c63 (patch) | |
| tree | 3f408358e33c7b4d0c7dc6979bc103bae5280047 | |
| parent | 1265168759f3b5298a21d2172b017d9e90de647a (diff) | |
wifi: brcmfmac: don't allow arp/nd offload to be enabled if ap mode exists
Add a check to determine whether arp/nd offload enabling
request is allowed. If there is any interface acts as ap
mode and is operating, reject the request of arp offload
enabling from cfg80211.
Signed-off-by: Ting-Ying Li <tingying.li@cypress.com>
Signed-off-by: Ian Lin <ian.lin@infineon.com>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Link: https://patch.msgid.link/20250606093444.15753-1-ian.lin@infineon.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
3 files changed, 22 insertions, 1 deletions
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c index b94c3619526c..5a0b252dfeaf 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c @@ -1043,6 +1043,21 @@ 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; +} + static void brcmf_scan_params_v2_to_v1(struct brcmf_scan_params_v2_le *params_v2_le, struct brcmf_scan_params_le *params_le) { @@ -5416,8 +5431,8 @@ 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 b83485ec7b87..273c80f2d483 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.h +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.h @@ -487,6 +487,7 @@ s32 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg, struct brcmf_if *ifp, bool aborted, bool fw_abort); void brcmf_set_mpc(struct brcmf_if *ndev, int mpc); +bool brcmf_is_apmode_operating(struct wiphy *wiphy); void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg); void brcmf_cfg80211_free_netdev(struct net_device *ndev); diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c index 04f41c09deca..862a0336a0b5 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c @@ -98,6 +98,11 @@ 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 |