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[94.29.29.31]) by smtp.googlemail.com with ESMTPSA id w22sm1179618ljg.115.2021.06.18.13.36.12 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 18 Jun 2021 13:36:12 -0700 (PDT) To: Arend van Spriel , Franky Lin , Hante Meuleman , Chi-Hsien Lin , Wright Feng , Kalle Valo Cc: "linux-wireless@vger.kernel.org" , "brcm80211-dev-list.pdl@broadcom.com" , "brcm80211-dev-list@cypress.com" , netdev , Linux Kernel Mailing List From: Dmitry Osipenko Subject: [BUG] brcmfmac locks up on resume from suspend Message-ID: Date: Fri, 18 Jun 2021 23:36:11 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.1 MIME-Version: 1.0 Content-Language: en-US Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Hi, I'm getting a hang on resume from suspend using today's next-20210618. It's tested on Tegra20 Acer A500 that has older BCM4329, but seems the problem is generic. There is this line in pstore log: ieee80211 phy0: brcmf_netdev_start_xmit: xmit rejected state=0 Steps to reproduce: 1. Boot system 2. Connect WiFi 3. Run "rtcwake -s10 -mmem" What's interesting is that turning WiFi off/on before suspending makes resume to work and there are no suspicious messages in KMSG, all further resumes work too. This change fixes the hang: goto done; 8<--- Comments? Suggestions? Thanks in advance. diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c index db5f8535fdb5..06d16f7776c7 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c @@ -301,7 +301,6 @@ static netdev_tx_t brcmf_netdev_start_xmit(struct sk_buff *skb, /* Can the device send data? */ if (drvr->bus_if->state != BRCMF_BUS_UP) { bphy_err(drvr, "xmit rejected state=%d\n", drvr->bus_if->state); - netif_stop_queue(ndev); dev_kfree_skb(skb); ret = -ENODEV;