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Message-Id: <1406067727-19683-105-git-send-email-kamal@canonical.com> Date: Tue, 22 Jul 2014 15:21:55 -0700 From: Kamal Mostafa <kamal@...onical.com> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org, kernel-team@...ts.ubuntu.com Cc: Rafał Miłecki <zajec5@...il.com>, "John W. Linville" <linville@...driver.com>, Kamal Mostafa <kamal@...onical.com> Subject: [PATCH 3.8 104/116] b43: fix frequency reported on G-PHY with /new/ firmware 3.8.13.27 -stable review patch. If anyone has any objections, please let me know. ------------------ From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@...il.com> commit 2fc68eb122c7ea6cd5be1fe7d6650c0beb2f4f40 upstream. 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 <emmanuel.grumbach@...el.com> 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 <aaro.koskinen@....fi> Signed-off-by: Rafał Miłecki <zajec5@...il.com> Tested-by: Aaro Koskinen <aaro.koskinen@....fi> Signed-off-by: John W. Linville <linville@...driver.com> Signed-off-by: Kamal Mostafa <kamal@...onical.com> --- 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 e85d34b..ebcce00 100644 --- a/drivers/net/wireless/b43/xmit.c +++ b/drivers/net/wireless/b43/xmit.c @@ -810,9 +810,13 @@ 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: -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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