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From 66ab63fbb33bf367807e3e471231379dce6f8b8c Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend.vanspriel@broadcom.com>
Date: Thu, 11 Jul 2019 11:05:10 +0200
Subject: [PATCH 5/7] brcmfmac: avoid firmware commands when bus is down
Upon rmmod a few attempts are made to inform firmware, but there is
no point as the bus is down and these will fail. Avoid them to keep
the logs clean.
Reported-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
---
.../broadcom/brcm80211/brcmfmac/cfg80211.c | 23 +++++++++++--------
1 file changed, 13 insertions(+), 10 deletions(-)
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
@@ -1286,17 +1286,21 @@ static void brcmf_link_down(struct brcmf
{
struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(vif->wdev.wiphy);
struct brcmf_pub *drvr = cfg->pub;
+ bool bus_up = drvr->bus_if->state == BRCMF_BUS_UP;
s32 err = 0;
brcmf_dbg(TRACE, "Enter\n");
if (test_and_clear_bit(BRCMF_VIF_STATUS_CONNECTED, &vif->sme_state)) {
- brcmf_dbg(INFO, "Call WLC_DISASSOC to stop excess roaming\n");
- err = brcmf_fil_cmd_data_set(vif->ifp,
- BRCMF_C_DISASSOC, NULL, 0);
- if (err) {
- bphy_err(drvr, "WLC_DISASSOC failed (%d)\n", err);
+ if (bus_up) {
+ brcmf_dbg(INFO, "Call WLC_DISASSOC to stop excess roaming\n");
+ err = brcmf_fil_cmd_data_set(vif->ifp,
+ BRCMF_C_DISASSOC, NULL, 0);
+ if (err)
+ bphy_err(drvr, "WLC_DISASSOC failed (%d)\n",
+ err);
}
+
if ((vif->wdev.iftype == NL80211_IFTYPE_STATION) ||
(vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT))
cfg80211_disconnected(vif->wdev.netdev, reason, NULL, 0,
@@ -1306,7 +1310,8 @@ static void brcmf_link_down(struct brcmf
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) {
- brcmf_set_pmk(vif->ifp, NULL, 0);
+ if (bus_up)
+ brcmf_set_pmk(vif->ifp, NULL, 0);
vif->profile.use_fwsup = BRCMF_PROFILE_FWSUP_NONE;
}
brcmf_dbg(TRACE, "Exit\n");
@@ -5004,18 +5009,16 @@ static int brcmf_cfg80211_get_channel(st
struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
struct net_device *ndev = wdev->netdev;
struct brcmf_pub *drvr = cfg->pub;
- struct brcmf_if *ifp;
struct brcmu_chan ch;
enum nl80211_band band = 0;
enum nl80211_chan_width width = 0;
u32 chanspec;
int freq, err;
- if (!ndev)
+ if (!ndev || drvr->bus_if->state != BRCMF_BUS_UP)
return -ENODEV;
- ifp = netdev_priv(ndev);
- err = brcmf_fil_iovar_int_get(ifp, "chanspec", &chanspec);
+ err = brcmf_fil_iovar_int_get(netdev_priv(ndev), "chanspec", &chanspec);
if (err) {
bphy_err(drvr, "chanspec failed (%d)\n", err);
return err;
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