asgardius/android_kernel_motorola_sm6225
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

brcmfmac: Accept only first creditmap event.

Browse source 
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@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@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:
Hante Meuleman 2013-06-06 13:17:58 +02:00 committed by John W. Linville
parent 402e3ba202
commit 0d24b0eade
1 changed files with 5 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
View file

@ -434,6 +434,7 @@ struct brcmf_fws_info {
u32 fifo_delay_map;
unsigned long borrow_defer_timestamp;
bool bus_flow_blocked;
bool creditmap_received;
};
/*
@ -1356,6 +1357,10 @@ 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);