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2c643bb0 GKH |
1 | From foo@baz Wed Aug 1 08:19:32 CEST 2018 |
2 | From: Stefan Wahren <stefan.wahren@i2se.com> | |
3 | Date: Sat, 28 Jul 2018 09:52:10 +0200 | |
4 | Subject: net: lan78xx: fix rx handling before first packet is send | |
5 | ||
6 | From: Stefan Wahren <stefan.wahren@i2se.com> | |
7 | ||
8 | [ Upstream commit 136f55f660192ce04af091642efc75d85e017364 ] | |
9 | ||
10 | As long the bh tasklet isn't scheduled once, no packet from the rx path | |
11 | will be handled. Since the tx path also schedule the same tasklet | |
12 | this situation only persits until the first packet transmission. | |
13 | So fix this issue by scheduling the tasklet after link reset. | |
14 | ||
15 | Link: https://github.com/raspberrypi/linux/issues/2617 | |
16 | Fixes: 55d7de9de6c3 ("Microchip's LAN7800 family USB 2/3 to 10/100/1000 Ethernet") | |
17 | Suggested-by: Floris Bos <bos@je-eigen-domein.nl> | |
18 | Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> | |
19 | Signed-off-by: David S. Miller <davem@davemloft.net> | |
20 | Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> | |
21 | --- | |
22 | drivers/net/usb/lan78xx.c | 2 ++ | |
23 | 1 file changed, 2 insertions(+) | |
24 | ||
25 | --- a/drivers/net/usb/lan78xx.c | |
26 | +++ b/drivers/net/usb/lan78xx.c | |
27 | @@ -1216,6 +1216,8 @@ static int lan78xx_link_reset(struct lan | |
28 | mod_timer(&dev->stat_monitor, | |
29 | jiffies + STAT_UPDATE_TIMER); | |
30 | } | |
31 | + | |
32 | + tasklet_schedule(&dev->bh); | |
33 | } | |
34 | ||
35 | return ret; |