From: Felix Fietkau Date: Wed, 12 Aug 2020 10:23:32 +0000 (+0200) Subject: mt76: mt7615: use v1 MCU API on MT7615 to fix issues with adding/removing stations X-Git-Tag: v5.8.13~19 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6540544b78f8973bb16400ce3a90b5ebe0b793f6;p=thirdparty%2Fkernel%2Fstable.git mt76: mt7615: use v1 MCU API on MT7615 to fix issues with adding/removing stations commit d1c9da9e4c938e8bbf8b0ef9e5772b97db5639e9 upstream. The implementation of embedding WTBL update inside the STA_REC update is buggy on the MT7615 v2 firmware. This leads to connection issues after a station has connected and disconnected again. Switch to the v1 MCU API ops, since they have received much more testing and should be more stable. On MT7622 and later, the v2 API is more actively used, so we should keep using it as well. Fixes: 6849e29ed92e ("mt76: mt7615: add starec operating flow for firmware v2") Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20200812102332.11812-1-nbd@nbd.name Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c index cb8c1d80ead92..72ad1426c45fc 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/mcu.c @@ -2014,7 +2014,8 @@ static int mt7615_load_n9(struct mt7615_dev *dev, const char *name) sizeof(dev->mt76.hw->wiphy->fw_version), "%.10s-%.15s", hdr->fw_ver, hdr->build_date); - if (!strncmp(hdr->fw_ver, "2.0", sizeof(hdr->fw_ver))) { + if (!is_mt7615(&dev->mt76) && + !strncmp(hdr->fw_ver, "2.0", sizeof(hdr->fw_ver))) { dev->fw_ver = MT7615_FIRMWARE_V2; dev->mcu_ops = &sta_update_ops; } else {