mirror of
https://github.com/Divested-Mobile/DivestOS-Build.git
synced 2024-12-19 12:54:22 -05:00
88 lines
3.3 KiB
Diff
88 lines
3.3 KiB
Diff
From 4d06dd537f95683aba3651098ae288b7cbff8274 Mon Sep 17 00:00:00 2001
|
|
From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= <bjorn@mork.no>
|
|
Date: Mon, 7 Mar 2016 21:15:36 +0100
|
|
Subject: cdc_ncm: do not call usbnet_link_change from cdc_ncm_bind
|
|
MIME-Version: 1.0
|
|
Content-Type: text/plain; charset=UTF-8
|
|
Content-Transfer-Encoding: 8bit
|
|
|
|
usbnet_link_change will call schedule_work and should be
|
|
avoided if bind is failing. Otherwise we will end up with
|
|
scheduled work referring to a netdev which has gone away.
|
|
|
|
Instead of making the call conditional, we can just defer
|
|
it to usbnet_probe, using the driver_info flag made for
|
|
this purpose.
|
|
|
|
Fixes: 8a34b0ae8778 ("usbnet: cdc_ncm: apply usbnet_link_change")
|
|
Reported-by: Andrey Konovalov <andreyknvl@gmail.com>
|
|
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
Signed-off-by: Bjørn Mork <bjorn@mork.no>
|
|
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
---
|
|
drivers/net/usb/cdc_ncm.c | 20 +++++---------------
|
|
1 file changed, 5 insertions(+), 15 deletions(-)
|
|
|
|
diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
|
|
index be92796..86ba30b 100644
|
|
--- a/drivers/net/usb/cdc_ncm.c
|
|
+++ b/drivers/net/usb/cdc_ncm.c
|
|
@@ -988,8 +988,6 @@ EXPORT_SYMBOL_GPL(cdc_ncm_select_altsetting);
|
|
|
|
static int cdc_ncm_bind(struct usbnet *dev, struct usb_interface *intf)
|
|
{
|
|
- int ret;
|
|
-
|
|
/* MBIM backwards compatible function? */
|
|
if (cdc_ncm_select_altsetting(intf) != CDC_NCM_COMM_ALTSETTING_NCM)
|
|
return -ENODEV;
|
|
@@ -998,16 +996,7 @@ static int cdc_ncm_bind(struct usbnet *dev, struct usb_interface *intf)
|
|
* Additionally, generic NCM devices are assumed to accept arbitrarily
|
|
* placed NDP.
|
|
*/
|
|
- ret = cdc_ncm_bind_common(dev, intf, CDC_NCM_DATA_ALTSETTING_NCM, 0);
|
|
-
|
|
- /*
|
|
- * We should get an event when network connection is "connected" or
|
|
- * "disconnected". Set network connection in "disconnected" state
|
|
- * (carrier is OFF) during attach, so the IP network stack does not
|
|
- * start IPv6 negotiation and more.
|
|
- */
|
|
- usbnet_link_change(dev, 0, 0);
|
|
- return ret;
|
|
+ return cdc_ncm_bind_common(dev, intf, CDC_NCM_DATA_ALTSETTING_NCM, 0);
|
|
}
|
|
|
|
static void cdc_ncm_align_tail(struct sk_buff *skb, size_t modulus, size_t remainder, size_t max)
|
|
@@ -1590,7 +1579,8 @@ static void cdc_ncm_status(struct usbnet *dev, struct urb *urb)
|
|
|
|
static const struct driver_info cdc_ncm_info = {
|
|
.description = "CDC NCM",
|
|
- .flags = FLAG_POINTTOPOINT | FLAG_NO_SETINT | FLAG_MULTI_PACKET,
|
|
+ .flags = FLAG_POINTTOPOINT | FLAG_NO_SETINT | FLAG_MULTI_PACKET
|
|
+ | FLAG_LINK_INTR,
|
|
.bind = cdc_ncm_bind,
|
|
.unbind = cdc_ncm_unbind,
|
|
.manage_power = usbnet_manage_power,
|
|
@@ -1603,7 +1593,7 @@ static const struct driver_info cdc_ncm_info = {
|
|
static const struct driver_info wwan_info = {
|
|
.description = "Mobile Broadband Network Device",
|
|
.flags = FLAG_POINTTOPOINT | FLAG_NO_SETINT | FLAG_MULTI_PACKET
|
|
- | FLAG_WWAN,
|
|
+ | FLAG_LINK_INTR | FLAG_WWAN,
|
|
.bind = cdc_ncm_bind,
|
|
.unbind = cdc_ncm_unbind,
|
|
.manage_power = usbnet_manage_power,
|
|
@@ -1616,7 +1606,7 @@ static const struct driver_info wwan_info = {
|
|
static const struct driver_info wwan_noarp_info = {
|
|
.description = "Mobile Broadband Network Device (NO ARP)",
|
|
.flags = FLAG_POINTTOPOINT | FLAG_NO_SETINT | FLAG_MULTI_PACKET
|
|
- | FLAG_WWAN | FLAG_NOARP,
|
|
+ | FLAG_LINK_INTR | FLAG_WWAN | FLAG_NOARP,
|
|
.bind = cdc_ncm_bind,
|
|
.unbind = cdc_ncm_unbind,
|
|
.manage_power = usbnet_manage_power,
|
|
--
|
|
cgit v1.1
|
|
|