[PATCH v3] brcmfmac: fix incorrect event channel deduction

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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

--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Linux Kernel]     [Kernel Development Newbies]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Hiking]     [Linux Kernel]     [Linux SCSI]