linux-kernel - [PATCH 3.16 073/129] libertas_tf: don't set URB_ZERO

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Date:   Sun, 07 Jul 2019 17:54:17 +0100
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org, Denis Kirjanov <kda@...ux-powerpc.org>,
        "Lubomir Rintel" <lkundrak@...sk>,
        "Steve deRosier" <derosier@...-sierra.com>,
        "Kalle Valo" <kvalo@...eaurora.org>
Subject: [PATCH 3.16 073/129] libertas_tf: don't set URB_ZERO_PACKET on IN
 USB transfer

3.16.70-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Lubomir Rintel <lkundrak@...sk>

commit 607076a904c435f2677fadaadd4af546279db68b upstream.

It doesn't make sense and the USB core warns on each submit of such
URB, easily flooding the message buffer with tracebacks.

Analogous issue was fixed in regular libertas driver in commit 6528d8804780
("libertas: don't set URB_ZERO_PACKET on IN USB transfer").

Signed-off-by: Lubomir Rintel <lkundrak@...sk>
Reviewed-by: Steve deRosier <derosier@...-sierra.com>
Signed-off-by: Kalle Valo <kvalo@...eaurora.org>
[bwh: Backported to 3.16: adjust filename]
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/net/wireless/libertas_tf/if_usb.c | 2 --
 1 file changed, 2 deletions(-)

--- a/drivers/net/wireless/libertas_tf/if_usb.c
+++ b/drivers/net/wireless/libertas_tf/if_usb.c
@@ -440,8 +440,6 @@ static int __if_usb_submit_rx_urb(struct
 			  skb_tail_pointer(skb),
 			  MRVDRV_ETH_RX_PACKET_BUFFER_SIZE, callbackfn, cardp);
 
-	cardp->rx_urb->transfer_flags |= URB_ZERO_PACKET;
-
 	lbtf_deb_usb2(&cardp->udev->dev, "Pointer for rx_urb %p\n",
 		cardp->rx_urb);
 	ret = usb_submit_urb(cardp->rx_urb, GFP_ATOMIC);