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staging: wfx: fix handling of MMIC error 

As expected, when the device detect a MMIC error, it returns a specific
status. However, it also strip IV from the frame (don't ask me why).

So, with the current code, mac80211 detects a corrupted frame and it
drops it before it handle the MMIC error. The expected behavior would be
to detect MMIC error then to renegotiate the EAP session.

So, this patch correctly informs mac80211 that IV is not available. So,
mac80211 correctly takes into account the MMIC error.

Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20201007101943.749898-2-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jérôme Pouiller 2020-10-07 12:19:37 +02:00 committed by Greg Kroah-Hartman
parent 8750de90ac
commit 8d350c14ee
1 changed files with 1 additions and 1 deletions
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2
drivers/staging/wfx/data_rx.c
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@ -41,7 +41,7 @@ void wfx_rx_cb(struct wfx_vif *wvif,
memset(hdr, 0, sizeof(*hdr));
if (arg->status == HIF_STATUS_RX_FAIL_MIC)
hdr->flag |= RX_FLAG_MMIC_ERROR;
hdr->flag |= RX_FLAG_MMIC_ERROR | RX_FLAG_IV_STRIPPED;
else if (arg->status)
goto drop;