b43: Fix connection problem with WPA3

commit 75d057bda1fbca6ade21378aa45db712e5f7d962 upstream.

Since the driver was first introduced into the kernel, it has only
handled the ciphers associated with WEP, WPA, and WPA2. It fails with
WPA3 even though mac80211 can handle those additional ciphers in software,
b43 did not report that it could handle them. By setting MFP_CAPABLE using
ieee80211_set_hw(), the problem is fixed.

With this change, b43 will handle the ciphers it knows in hardware,
and let mac80211 handle the others in software. It is not necessary to
use the module parameter NOHWCRYPT to turn hardware encryption off.
Although this change essentially eliminates that module parameter,
I am choosing to keep it for cases where the hardware is broken,
and software encryption is required for all ciphers.

Reported-and-tested-by: Rui Salvaterra <rsalvaterra@gmail.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200526155909.5807-2-Larry.Finger@lwfinger.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index ec013fbd6a81cda4a0cce04a74b469c1f3cda532..68bf380b3e535f9d2692eba2bfd0131d628f76df 100644 (file)
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -5611,7 +5611,7 @@ static struct b43_wl *b43_wireless_init(struct b43_bus_dev *dev)
        /* fill hw info */
        ieee80211_hw_set(hw, RX_INCLUDES_FCS);
        ieee80211_hw_set(hw, SIGNAL_DBM);
-
+       ieee80211_hw_set(hw, MFP_CAPABLE);
        hw->wiphy->interface_modes =
                BIT(NL80211_IFTYPE_AP) |
                BIT(NL80211_IFTYPE_MESH_POINT) |