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Date: Sat, 25 Oct 2014 04:57:05 +0200
From: Mike Galbraith <umgwanakikbuti@...il.com>
To: Murilo Opsfelder Araujo <mopsfelder@...il.com>
Cc: Larry Finger <Larry.Finger@...inger.net>, linville@...driver.com,
linux-wireless@...r.kernel.org, troy_tan@...lsil.com.cn,
netdev@...r.kernel.org, Thadeu Cascardo <cascardo@...cardo.eti.br>
Subject: Re: [PATCH V3.18] rtlwifi: Add check for get_btc_status callback
On Fri, 2014-10-24 at 17:09 -0200, Murilo Opsfelder Araujo wrote:
> On 10/24/2014 04:13 PM, Murilo Opsfelder Araujo wrote:
> > On 10/24/2014 02:39 PM, Larry Finger wrote:
> > [...]
> >>
> >> Please try the attached patch. It replaces the second one I sent you. I
> >> will probably redo it before submitting the final copy, but this should
> >> work.
> >>
> >> Larry
> >>
> > Hi, Larry.
> >
> > I've tried your patch on top of next-20141023 and it is still crashing
> > on my laptop:
> >
> > http://opsfelder.com/~murilo/lkml/next-20141023_plus_larry_patch_v2.jpg
> >
> It seems a get_btc_status() check was still missing:
>
> diff --git a/drivers/net/wireless/rtlwifi/pci.c
> b/drivers/net/wireless/rtlwifi/pci.c
> index a5a350a..ed3364d 100644
> --- a/drivers/net/wireless/rtlwifi/pci.c
> +++ b/drivers/net/wireless/rtlwifi/pci.c
> @@ -1796,7 +1796,8 @@ static int rtl_pci_start(struct ieee80211_hw *hw)
> rtl_pci_reset_trx_ring(hw);
>
> rtlpci->driver_is_goingto_unload = false;
> - if (rtlpriv->cfg->ops->get_btc_status()) {
> + if (rtlpriv->cfg->ops->get_btc_status &&
> + rtlpriv->cfg->ops->get_btc_status()) {
> rtlpriv->btcoexist.btc_ops->btc_init_variables(rtlpriv);
> rtlpriv->btcoexist.btc_ops->btc_init_hal_vars(rtlpriv);
> }
>
> With this minor change and Larry's latest fix_misc_desc patch,
> next-20141023 booted normally and kernel panic disappeared.
>
> Now, there is no wifi network available or found by wlan0.
I don't need your addition, but our end results are the same.
[ 312.126598] cfg80211: Calling CRDA to update world regulatory domain
[ 312.131076] cfg80211: World regulatory domain updated:
[ 312.131107] cfg80211: DFS Master region: unset
[ 312.131112] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 312.131123] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 312.131129] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 312.131136] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 312.131142] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 312.131149] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 312.210452] rtl8192se: FW Power Save off (module option)
[ 312.210561] rtl8192se: Driver for Realtek RTL8192SE/RTL8191SE
[ 312.210561] Loading firmware rtlwifi/rtl8192sefw.bin
[ 312.212496] ieee80211 phy0: Selected rate control algorithm 'rtl_rc'
[ 312.758613] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
Interface doesn't associate.
3.17.1
[ 266.849622] cfg80211: Calling CRDA to update world regulatory domain
[ 266.853632] cfg80211: World regulatory domain updated:
[ 266.853661] cfg80211: DFS Master region: unset
[ 266.853667] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 266.853680] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 266.853686] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 266.853691] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 266.853697] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 266.853704] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[ 266.926560] rtl8192se: FW Power Save off (module option)
[ 266.926661] rtl8192se: Driver for Realtek RTL8192SE/RTL8191SE
[ 266.926661] Loading firmware rtlwifi/rtl8192sefw.bin
[ 266.927054] ieee80211 phy0: Selected rate control algorithm 'rtl_rc'
[ 267.437850] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 268.389049] wlan0: authenticate with 20:4e:7f:86:09:40
[ 268.410174] wlan0: send auth to 20:4e:7f:86:09:40 (try 1/3)
[ 268.411974] wlan0: authenticated
[ 268.416222] wlan0: associate with 20:4e:7f:86:09:40 (try 1/3)
[ 268.420555] wlan0: RX AssocResp from 20:4e:7f:86:09:40 (capab=0x431 status=0 aid=1)
[ 268.423403] wlan0: associated
[ 268.423427] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
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