From 2fc68eb122c7ea6cd5be1fe7d6650c0beb2f4f40 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Thu, 12 Jun 2014 22:28:22 +0200 Subject: [PATCH] b43: fix frequency reported on G-PHY with /new/ firmware MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Support for firmware rev 508+ was added years ago, but we never noticed it reports channel in a different way for G-PHY devices. Instead of offset from 2400 MHz it simply passes channel id (AKA hw_value). So far it was (most probably) affecting monitor mode users only, but the following recent commit made it noticeable for quite everybody: commit 3afc2167f60a327a2c1e1e2600ef209a3c2b75b7 Author: Emmanuel Grumbach Date: Tue Mar 4 16:50:13 2014 +0200 cfg80211/mac80211: ignore signal if the frame was heard on wrong channel Reported-by: Aaro Koskinen Signed-off-by: Rafał Miłecki Cc: stable@vger.kernel.org Tested-by: Aaro Koskinen Signed-off-by: John W. Linville --- drivers/net/wireless/b43/xmit.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/b43/xmit.c b/drivers/net/wireless/b43/xmit.c index 4f38f19b8e3..6e6ef3fc224 100644 --- a/drivers/net/wireless/b43/xmit.c +++ b/drivers/net/wireless/b43/xmit.c @@ -811,9 +811,13 @@ void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr) break; case B43_PHYTYPE_G: status.band = IEEE80211_BAND_2GHZ; - /* chanid is the radio channel cookie value as used - * to tune the radio. */ - status.freq = chanid + 2400; + /* Somewhere between 478.104 and 508.1084 firmware for G-PHY + * has been modified to be compatible with N-PHY and others. + */ + if (dev->fw.rev >= 508) + status.freq = ieee80211_channel_to_frequency(chanid, status.band); + else + status.freq = chanid + 2400; break; case B43_PHYTYPE_N: case B43_PHYTYPE_LP: -- 2.41.0