2022-10-24 09:06:43

by Ian Lin

[permalink] [raw]
Subject: [PATCH v4 0/3] Fix connect/p2p issue series

Fix several connect and p2p issues.

Changes in v4:
- remove inappropriate patch "brcmfmac: Update SSID of hidden AP while informing its bss to cfg80211 layer"
- remove inappropriate patch "brcmfmac: fix P2P device discovery failure"
- use the correct commit message label

Changes in v3:
- do typecast while variable assignment in brcmf_inform_single_bss()

Changes in v2:
- fix email address mismatch with s-o-b
- remove unnecessary type casting


Brian Henriquez (1):
wifi: brcmfmac: correctly remove all p2p vif

Prasanna Kerekoppa (1):
wifi: brcmfmac: Avoiding Connection delay

Wataru Gohda (1):
wifi: brcmfmac: Fix for when connect request is not success

.../broadcom/brcm80211/brcmfmac/cfg80211.c | 24 ++++++++++++++++---
.../broadcom/brcm80211/brcmfmac/p2p.c | 8 +++++--
2 files changed, 27 insertions(+), 5 deletions(-)

--
2.25.0


2022-10-24 09:06:43

by Ian Lin

[permalink] [raw]
Subject: [PATCH v4 1/3] wifi: brcmfmac: correctly remove all p2p vif

From: Brian Henriquez <[email protected]>

When deleting a P2P AGO interface we should make sure that
relevant entry in bss_idx[] array is removed. We were always
removing only 'vif' at P2PAPI_BSSCFG_CONNECTION before,
regardless of the number of created P2P AGO interfaces.
brcmfmac: correctly remove all p2p vif

Signed-off-by: Brian Henriquez <[email protected]>
Signed-off-by: Chi-hsien Lin <[email protected]>
Signed-off-by: Ian Lin <[email protected]>
---
drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c
index 479041f070f9..b3d706a2e68c 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c
@@ -2424,8 +2424,12 @@ int brcmf_p2p_del_vif(struct wiphy *wiphy, struct wireless_dev *wdev)
brcmf_remove_interface(vif->ifp, true);

brcmf_cfg80211_arm_vif_event(cfg, NULL);
- if (iftype != NL80211_IFTYPE_P2P_DEVICE)
- p2p->bss_idx[P2PAPI_BSSCFG_CONNECTION].vif = NULL;
+ if (iftype != NL80211_IFTYPE_P2P_DEVICE) {
+ if (vif == p2p->bss_idx[P2PAPI_BSSCFG_CONNECTION].vif)
+ p2p->bss_idx[P2PAPI_BSSCFG_CONNECTION].vif = NULL;
+ if (vif == p2p->bss_idx[P2PAPI_BSSCFG_CONNECTION2].vif)
+ p2p->bss_idx[P2PAPI_BSSCFG_CONNECTION2].vif = NULL;
+ }

return err;
}
--
2.25.0

2022-10-24 09:06:43

by Ian Lin

[permalink] [raw]
Subject: [PATCH v4 2/3] wifi: brcmfmac: Fix for when connect request is not success

From: Wataru Gohda <[email protected]>

Currently brcmfmac is expecting to be set for both
BRCMF_VIF_STATUS_EAP_SUCCESS and BRCMF_VIF_STATUS_EAP status bit based
on dongle event and those bits are cleared to complete connect request
successfully.

But when connect request is finished unsuccessfully, either
BRCMF_VIF_STATUS_EAP_SUCCESS / BRCMF_VIF_STATUS_EAP bits are not
cleared depending on how the connect fail event happens. These status
bits are carried over to following new connect request and this will lead
to generate below kernel warning for some case. Worst case status
mismatch happens between dongle and wpa_supplicant.

WARNING: ../net/wireless/sme.c:756 __cfg80211_connect_result+0x42c/0x4a0 [cfg80211]

The fix is to clear the BRCMF_VIF_STATUS_EAP_SUCCESS /
BRCMF_VIF_STATUS_EAP bits during the link down process and add to call
link down process when link down event received during
BRCMF_VIF_STATUS_CONNECTING as well as BRCMF_VIF_STATUS_CONNECTED
state.

Signed-off-by: Wataru Gohda <[email protected]>
Signed-off-by: Chi-hsien Lin <[email protected]>
Signed-off-by: Ian Lin <[email protected]>
---
.../broadcom/brcm80211/brcmfmac/cfg80211.c | 18 +++++++++++++++---
1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
index 3f2336062217..14cbc30a3229 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
@@ -1683,6 +1683,8 @@ static void brcmf_link_down(struct brcmf_cfg80211_vif *vif, u16 reason,
locally_generated, GFP_KERNEL);
}
clear_bit(BRCMF_VIF_STATUS_CONNECTING, &vif->sme_state);
+ clear_bit(BRCMF_VIF_STATUS_EAP_SUCCESS, &vif->sme_state);
+ clear_bit(BRCMF_VIF_STATUS_ASSOC_SUCCESS, &vif->sme_state);
clear_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status);
brcmf_btcoex_set_mode(vif, BRCMF_BTCOEX_ENABLED, 0);
if (vif->profile.use_fwsup != BRCMF_PROFILE_FWSUP_NONE) {
@@ -2535,6 +2537,8 @@ brcmf_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *ndev,

clear_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state);
clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
+ clear_bit(BRCMF_VIF_STATUS_EAP_SUCCESS, &ifp->vif->sme_state);
+ clear_bit(BRCMF_VIF_STATUS_ASSOC_SUCCESS, &ifp->vif->sme_state);
cfg80211_disconnected(ndev, reason_code, NULL, 0, true, GFP_KERNEL);

memcpy(&scbval.ea, &profile->bssid, ETH_ALEN);
@@ -6299,6 +6303,10 @@ brcmf_bss_connect_done(struct brcmf_cfg80211_info *cfg,
&ifp->vif->sme_state);
conn_params.status = WLAN_STATUS_SUCCESS;
} else {
+ clear_bit(BRCMF_VIF_STATUS_EAP_SUCCESS,
+ &ifp->vif->sme_state);
+ clear_bit(BRCMF_VIF_STATUS_ASSOC_SUCCESS,
+ &ifp->vif->sme_state);
conn_params.status = WLAN_STATUS_AUTH_TIMEOUT;
}
conn_params.links[0].bssid = profile->bssid;
@@ -6396,9 +6404,13 @@ brcmf_notify_connect_status(struct brcmf_if *ifp,
} else if (brcmf_is_linkdown(ifp->vif, e)) {
brcmf_dbg(CONN, "Linkdown\n");
if (!brcmf_is_ibssmode(ifp->vif) &&
- test_bit(BRCMF_VIF_STATUS_CONNECTED,
- &ifp->vif->sme_state)) {
- if (memcmp(profile->bssid, e->addr, ETH_ALEN))
+ (test_bit(BRCMF_VIF_STATUS_CONNECTED,
+ &ifp->vif->sme_state) ||
+ test_bit(BRCMF_VIF_STATUS_CONNECTING,
+ &ifp->vif->sme_state))) {
+ if (test_bit(BRCMF_VIF_STATUS_CONNECTED,
+ &ifp->vif->sme_state) &&
+ memcmp(profile->bssid, e->addr, ETH_ALEN))
return err;

brcmf_bss_connect_done(cfg, ndev, e, false);
--
2.25.0

2022-10-24 09:06:43

by Ian Lin

[permalink] [raw]
Subject: [PATCH v4 3/3] wifi: brcmfmac: Avoiding Connection delay

From: Prasanna Kerekoppa <[email protected]>

Channel info passed by supplicant is not given to firmware. This causes
delay (about 3seconds) due to full scan. Supplicant already provides the
channel info for the specific SSID. channel_hint carries this channel
info for the connect call back.

Patch has been verified on 43012 and 43455.

Signed-off-by: Prasanna Kerekoppa <[email protected]>
Signed-off-by: Chung-Hsien Hsu <[email protected]>
Signed-off-by: Chi-hsien Lin <[email protected]>
Signed-off-by: Ian Lin <[email protected]>
---
drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
index 14cbc30a3229..ae9507dec74a 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
@@ -2315,6 +2315,12 @@ brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev,
return -EOPNOTSUPP;
}

+ if (sme->channel_hint)
+ chan = sme->channel_hint;
+
+ if (sme->bssid_hint)
+ sme->bssid = sme->bssid_hint;
+
if (ifp->vif == cfg->p2p.bss_idx[P2PAPI_BSSCFG_PRIMARY].vif) {
/* A normal (non P2P) connection request setup. */
ie = NULL;
--
2.25.0

2022-11-08 07:40:53

by Kalle Valo

[permalink] [raw]
Subject: Re: [PATCH v4 1/3] wifi: brcmfmac: correctly remove all p2p vif

Ian Lin <[email protected]> wrote:

> From: Brian Henriquez <[email protected]>
>
> When deleting a P2P AGO interface we should make sure that
> relevant entry in bss_idx[] array is removed. We were always
> removing only 'vif' at P2PAPI_BSSCFG_CONNECTION before,
> regardless of the number of created P2P AGO interfaces.
> brcmfmac: correctly remove all p2p vif
>
> Signed-off-by: Brian Henriquez <[email protected]>
> Signed-off-by: Chi-hsien Lin <[email protected]>
> Signed-off-by: Ian Lin <[email protected]>

3 patches applied to wireless-next.git, thanks.

c7caaa6f7278 wifi: brcmfmac: correctly remove all p2p vif
52617bee3718 wifi: brcmfmac: Fix for when connect request is not success
c81c1fd4e907 wifi: brcmfmac: Avoiding Connection delay

--
https://patchwork.kernel.org/project/linux-wireless/patch/[email protected]/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches