target/linux/brcm2708/patches-4.14/950-0359-net-lan78xx-fix-rx-handling-before-first-packet-is-s.patch

   1 From 213fa517424f4d1c83e7cf486c0f113bd874c32c Mon Sep 17 00:00:00 2001
   2 From: Stefan Wahren <stefan.wahren@i2se.com>
   3 Date: Mon, 16 Jul 2018 21:33:40 +0200
   4 Subject: [PATCH 359/454] net: lan78xx: fix rx handling before first packet is
   5  send
   6
   7 As long the bh tasklet isn't scheduled once, no packet from the rx path
   8 will be handled. Since the tx path also schedule the same tasklet
   9 this situation only persits until the first packet transmission.
  10 So fix this issue by scheduling the tasklet during ndo_open like in usbnet.
  11
  12 Link: https://github.com/raspberrypi/linux/issues/2617
  13 Fixes: 55d7de9de6c3 ("Microchip's LAN7800 family USB 2/3 to 10/100/1000 Ethernet")
  14 Suggested-by: Floris Bos <bos@je-eigen-domein.nl>
  15 Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
  16 ---
  17  drivers/net/usb/lan78xx.c | 2 ++
  18  1 file changed, 2 insertions(+)
  19
  20 --- a/drivers/net/usb/lan78xx.c
  21 +++ b/drivers/net/usb/lan78xx.c
  22 @@ -2589,6 +2589,8 @@ static int lan78xx_open(struct net_devic
  23
  24         dev->link_on = false;
  25
  26 +       tasklet_schedule(&dev->bh);
  27 +
  28         lan78xx_defer_kevent(dev, EVENT_LINK_RESET);
  29  done:
  30         usb_autopm_put_interface(dev->intf);