This is a note to let you know that I've just added the patch titled
brcmfmac: setup wiphy bands after registering it first
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
brcmfmac-setup-wiphy-bands-after-registering-it-first.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Thu Nov 9 09:48:01 CET 2017
From: Rafał Miłecki <rafal@xxxxxxxxxx>
Date: Sat, 7 Jan 2017 21:36:05 +0100
Subject: brcmfmac: setup wiphy bands after registering it first
From: Rafał Miłecki <rafal@xxxxxxxxxx>
[ Upstream commit ab99063f873749b3c3b1e5d44038559883465e74 ]
During bands setup we disable all channels that firmware doesn't support
in the current regulatory setup. If we do this before wiphy_register
it will result in copying set flags (including IEEE80211_CHAN_DISABLED)
to the orig_flags which is supposed to be persistent. We don't want this
as regulatory change may result in enabling some channels. We shouldn't
mess with orig_flags then (by changing them or ignoring them) so it's
better to just take care of their proper values.
This patch cleanups code a bit (by taking orig_flags more seriously) and
allows further improvements like disabling really unavailable channels.
We will need that e.g. if some frequencies should be disabled for good
due to hardware setup (design).
Signed-off-by: Rafał Miłecki <rafal@xxxxxxxxxx>
Acked-by: Arend van Spriel <arend.vanspriel@xxxxxxxxxxxx>
Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
@@ -6572,8 +6572,7 @@ static int brcmf_setup_wiphy(struct wiph
wiphy->bands[NL80211_BAND_5GHZ] = band;
}
}
- err = brcmf_setup_wiphybands(wiphy);
- return err;
+ return 0;
}
static s32 brcmf_config_dongle(struct brcmf_cfg80211_info *cfg)
@@ -6938,6 +6937,12 @@ struct brcmf_cfg80211_info *brcmf_cfg802
goto priv_out;
}
+ err = brcmf_setup_wiphybands(wiphy);
+ if (err) {
+ brcmf_err("Setting wiphy bands failed (%d)\n", err);
+ goto wiphy_unreg_out;
+ }
+
/* If cfg80211 didn't disable 40MHz HT CAP in wiphy_register(),
* setup 40MHz in 2GHz band and enable OBSS scanning.
*/
Patches currently in stable-queue which might be from rafal@xxxxxxxxxx are
queue-4.9/brcmfmac-setup-wiphy-bands-after-registering-it-first.patch