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brcmfmac: decrement pending 8021x count upon tx failure 

If the transmit fails because there are no hanger slots or
any other reason and the packet was an EAPOL packet the
pending counter should be decreased although it was not
transmitted so the driver does not end up in a dead-lock.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Arend van Spriel 2013-07-22 20:31:22 +02:00 committed by John W. Linville
parent 5d21608a59
commit 28a905b51c
1 changed files with 7 additions and 1 deletions
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8
drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
View File

@ -1744,13 +1744,14 @@ int brcmf_fws_process_skb(struct brcmf_if *ifp, struct sk_buff *skb)
ulong flags;
int fifo = BRCMF_FWS_FIFO_BCMC;
bool multicast = is_multicast_ether_addr(eh->h_dest);
bool pae = eh->h_proto == htons(ETH_P_PAE);
/* determine the priority */
if (!skb->priority)
skb->priority = cfg80211_classify8021d(skb);
drvr->tx_multicast += !!multicast;
if (ntohs(eh->h_proto) == ETH_P_PAE)
if (pae)
atomic_inc(&ifp->pend_8021x_cnt);
if (!brcmf_fws_fc_active(fws)) {
@ -1781,6 +1782,11 @@ int brcmf_fws_process_skb(struct brcmf_if *ifp, struct sk_buff *skb)
brcmf_fws_schedule_deq(fws);
} else {
brcmf_err("drop skb: no hanger slot\n");
if (pae) {
atomic_dec(&ifp->pend_8021x_cnt);
if (waitqueue_active(&ifp->pend_8021x_wait))
wake_up(&ifp->pend_8021x_wait);
}
brcmu_pkt_buf_free_skb(skb);
}
brcmf_fws_unlock(drvr, flags);