From: Hante Meuleman <meuleman@xxxxxxxxxxxx>
During P2P testing it turned out that the firmware sents multiple
multiple creditmap event messages. Only the first message from the
firmware should be processed. Otherwise the firmware-signalled flow
control can run haywire when it has packets outstanding in firmware.
Reviewed-by: Arend Van Spriel <arend@xxxxxxxxxxxx>
Signed-off-by: Hante Meuleman <meuleman@xxxxxxxxxxxx>
Signed-off-by: Arend van Spriel <arend@xxxxxxxxxxxx>
---
drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index b11a51b..dd47796 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -438,6 +438,7 @@ struct brcmf_fws_info {
u32 fifo_delay_map;
unsigned long borrow_defer_timestamp;
bool bus_flow_blocked;
+ bool creditmap_received;
};
/*
@@ -1432,6 +1433,10 @@ static int brcmf_fws_notify_credit_map(struct brcmf_if *ifp,
brcmf_err("event payload too small (%d)\n", e->datalen);
return -EINVAL;
}
+ if (fws->creditmap_received)
+ return 0;
+
+ fws->creditmap_received = true;
brcmf_dbg(TRACE, "enter: credits %pM\n", credits);
brcmf_fws_lock(ifp->drvr, flags);
--
1.7.10.4
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