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Subject[PATCH 3.16 080/305] libertas: don't set URB_ZERO_PACKET on IN USB transfer
3.16.63-rc1 review patch.  If anyone has any objections, please let me know.

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

From: Lubomir Rintel <lkundrak@v3.sk>

commit 6528d88047801b80d2a5370ad46fb6eff2f509e0 upstream.

The USB core gets rightfully upset:

usb 1-1: BOGUS urb flags, 240 --> 200
WARNING: CPU: 0 PID: 60 at drivers/usb/core/urb.c:503 usb_submit_urb+0x2f8/0x3ed
Modules linked in:
CPU: 0 PID: 60 Comm: kworker/0:3 Not tainted 4.19.0-rc6-00319-g5206d00a45c7 #39
Hardware name: OLPC XO/XO, BIOS OLPC Ver 1.00.01 06/11/2014
Workqueue: events request_firmware_work_func
EIP: usb_submit_urb+0x2f8/0x3ed
Code: 75 06 8b 8f 80 00 00 00 8d 47 78 89 4d e4 89 55 e8 e8 35 1c f6 ff 8b 55 e8 56 52 8b 4d e4 51 50 68 e3 ce c7 c0 e8 ed 18 c6 ff <0f> 0b 83 c4 14 80 7d ef 01 74 0a 80 7d ef 03 0f 85 b8 00 00 00 8b
EAX: 00000025 EBX: ce7d4980 ECX: 00000000 EDX: 00000001
ESI: 00000200 EDI: ce7d8800 EBP: ce7f5ea8 ESP: ce7f5e70
DS: 007b ES: 007b FS: 0000 GS: 00e0 SS: 0068 EFLAGS: 00210292
CR0: 80050033 CR2: 00000000 CR3: 00e80000 CR4: 00000090
Call Trace:
? if_usb_fw_timeo+0x64/0x64
__if_usb_submit_rx_urb+0x85/0xe6
? if_usb_fw_timeo+0x64/0x64
if_usb_submit_rx_urb_fwload+0xd/0xf
if_usb_prog_firmware+0xc0/0x3db
? _request_firmware+0x54/0x47b
? _request_firmware+0x89/0x47b
? if_usb_probe+0x412/0x412
lbs_fw_loaded+0x55/0xa6
? debug_smp_processor_id+0x12/0x14
helper_firmware_cb+0x3c/0x3f
request_firmware_work_func+0x37/0x6f
process_one_work+0x164/0x25a
worker_thread+0x1c4/0x284
kthread+0xec/0xf1
? cancel_delayed_work_sync+0xf/0xf
? kthread_create_on_node+0x1a/0x1a
ret_from_fork+0x2e/0x38
---[ end trace 3ef1e3b2dd53852f ]---

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
[bwh: Backported to 3.16: adjust filename]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/net/wireless/libertas/if_usb.c | 2 --
1 file changed, 2 deletions(-)

--- a/drivers/net/wireless/libertas/if_usb.c
+++ b/drivers/net/wireless/libertas/if_usb.c
@@ -467,8 +467,6 @@ static int __if_usb_submit_rx_urb(struct
MRVDRV_ETH_RX_PACKET_BUFFER_SIZE, callbackfn,
cardp);

- cardp->rx_urb->transfer_flags |= URB_ZERO_PACKET;
-
lbs_deb_usb2(&cardp->udev->dev, "Pointer for rx_urb %p\n", cardp->rx_urb);
if ((ret = usb_submit_urb(cardp->rx_urb, GFP_ATOMIC))) {
lbs_deb_usbd(&cardp->udev->dev, "Submit Rx URB failed: %d\n", ret);
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