From: Gavin Li <git@xxxxxxxxxxxxxx>
brcmf_sdio_fromevntchan() was being called on the the data frame
rather than the software header, causing some frames to be
mischaracterized as on the event channel rather than the data channel.
This fixes a major performance regression (due to dropped packets).
Fixes: c56caa9db8ab ("brcmfmac: screening firmware event packet")
Signed-off-by: Gavin Li <git@xxxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> [4.7+]
---
drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
index dfb0658713d9..d2219885071f 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
@@ -1661,7 +1661,7 @@ static u8 brcmf_sdio_rxglom(struct brcmf_sdio *bus, u8 rxseq)
pfirst->len, pfirst->next,
pfirst->prev);
skb_unlink(pfirst, &bus->glom);
- if (brcmf_sdio_fromevntchan(pfirst->data))
+ if (brcmf_sdio_fromevntchan(&dptr[SDPCM_HWHDR_LEN]))
brcmf_rx_event(bus->sdiodev->dev, pfirst);
else
brcmf_rx_frame(bus->sdiodev->dev, pfirst,
--
2.11.0
