MIME-Version: 1.0
References: <1552450443-351-1-git-send-email-yhchuang@realtek.com>
 <20190325143611.sjwwjqtrftxntwyk@penguin> <20190326075414.GA8598@redhat.com>
In-Reply-To: <20190326075414.GA8598@redhat.com>
From:   Brian Norris <briannorris@chromium.org>
Date:   Tue, 26 Mar 2019 08:43:13 -0700
Message-ID: <CA+ASDXNcCNcBmiHi468p1foWgSOXy9Mt8o+CD17Bd4PqhUXFoA@mail.gmail.com>
Subject: Re: [PATCH v8 00/14] rtw88: mac80211 driver for Realtek 802.11ac
 wireless network chips
To:     Stanislaw Gruszka <sgruszka@redhat.com>
Cc:     Tony Chuang <yhchuang@realtek.com>,
        Kalle Valo <kvalo@codeaurora.org>,
        Johannes Berg <johannes@sipsolutions.net>,
        linux-wireless <linux-wireless@vger.kernel.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Pkshih <pkshih@realtek.com>, Andy Huang <tehuang@realtek.com>,
        Larry Finger <Larry.Finger@lwfinger.net>
Content-Type: text/plain; charset="UTF-8"
Sender: linux-wireless-owner@vger.kernel.org
Precedence: bulk

On Tue, Mar 26, 2019 at 12:54 AM Stanislaw Gruszka <sgruszka@redhat.com> wrote:
> I also tested on RTL8822CE we generously got from Tony. I replaced wifi
> card on my laptop by the 8822CE device. I have warning on resume from
> suspend (see below, it could be mac80211 issue though). But network
> connection was established after the warning and in general device
> works stable for 2 days now.
>
> Tested-by: Stanislaw Gruszka <sgruszka@redhat.com>
>
> [16158.826873] rtw_pci 0000:02:00.0: start vif 00:e0:4c:09:94:0f on port 0
> [16158.827693] ------------[ cut here ]------------
> [16158.827694] wlan0: invalid CW_min/CW_max: 0/0

I didn't test system suspend/resume with this driver yet (oops), but
FWIW I've seen reports of this warning on every other mac80211 driver
I've supported. I don't think we've ever totally resolved them and I
haven't looked closely into the reason for the WARNING.

Brian