AuxXxilium/linux_dsm_epyc7002
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b9f90eb274
linux_dsm_epyc7002/drivers/net
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Bjørn Mork b9f90eb274 net: qmi_wwan: fix Gobi device probing 
Ignoring interfaces with additional descriptors is not a reliable
method for locating the correct interface on Gobi devices.  There
is at least one device where this method fails:
https://bbs.archlinux.org/viewtopic.php?id=143506

The result is that the AT command port (interface #2) is hidden
from qcserial, preventing traditional serial modem usage:

[   15.562552] qmi_wwan 4-1.6:1.0: cdc-wdm0: USB WDM device
[   15.562691] qmi_wwan 4-1.6:1.0: wwan0: register 'qmi_wwan' at usb-0000:00:1d.0-1.6, Qualcomm Gobi wwan/QMI device, 1e:df:3c:3a:4e:3b
[   15.563383] qmi_wwan: probe of 4-1.6:1.1 failed with error -22
[   15.564189] qmi_wwan 4-1.6:1.2: cdc-wdm1: USB WDM device
[   15.564302] qmi_wwan 4-1.6:1.2: wwan1: register 'qmi_wwan' at usb-0000:00:1d.0-1.6, Qualcomm Gobi wwan/QMI device, 1e:df:3c:3a:4e:3b
[   15.564328] qmi_wwan: probe of 4-1.6:1.3 failed with error -22
[   15.569376] qcserial 4-1.6:1.1: Qualcomm USB modem converter detected
[   15.569440] usb 4-1.6: Qualcomm USB modem converter now attached to ttyUSB0
[   15.570372] qcserial 4-1.6:1.3: Qualcomm USB modem converter detected
[   15.570430] usb 4-1.6: Qualcomm USB modem converter now attached to ttyUSB1

Use static interface numbers taken from the interface map in
qcserial for all Gobi devices instead:

	Gobi 1K USB layout:
	0: serial port (doesn't respond)
	1: serial port (doesn't respond)
	2: AT-capable modem port
	3: QMI/net

	Gobi 2K+ USB layout:
	0: QMI/net
	1: DM/DIAG (use libqcdm from ModemManager for communication)
	2: AT-capable modem port
	3: NMEA

This should be more reliable over all, and will also prevent the
noisy "probe failed" messages.  The whitelisting logic is expected
to be replaced by direct interface number matching in 3.6.

Reported-by: Heinrich Siebmanns (Harvey) <H.Siebmanns@t-online.de>
Cc: <stable@vger.kernel.org> # v3.4: 0000188 USB: qmi_wwan: Make forced int 4 whitelist generic
Cc: <stable@vger.kernel.org> # v3.4: f7142e6 USB: qmi_wwan: Add ZTE (Vodafone) K3520-Z
Cc: <stable@vger.kernel.org> # v3.4
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-22 17:17:02 -07:00
..
appletalk Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
arcnet arcnet: rimi: Fix device name in debug output 2012-04-17 22:22:43 -04:00
bonding bonding: show all the link status of slaves 2012-06-17 16:23:54 -07:00
caif caif: include linux/io.h 2012-04-21 15:28:47 -04:00
can can: c_can: precedence error in c_can_chip_config() 2012-06-15 15:25:56 -07:00
cris net:removed the unused variable 2012-04-03 13:09:18 +02:00
dsa
ethernet ixgbe: Fix memory leak in ixgbe when receiving traffic on DDP enabled rings 2012-06-20 00:53:57 -07:00
fddi
hamradio Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
hippi hippi: fix printk format in rrunner.c 2012-04-16 23:48:38 -04:00
hyperv net/hyperv: Use wait_event on outstanding sends during device removal 2012-06-04 13:50:38 -04:00
irda Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-05-22 19:22:50 -07:00
phy phy/micrel: change phy_id_mask for KSZ9021 and KS8001 2012-06-19 00:31:36 -07:00
plip Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
ppp ppp: avoid false drop_monitor false positives 2012-05-19 02:32:30 -04:00
slip Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
team team: add per-port option for enabling/disabling ports 2012-04-21 16:26:33 -04:00
usb net: qmi_wwan: fix Gobi device probing 2012-06-22 17:17:02 -07:00
vmxnet3
wan Staging tree pull request for 3.5-rc1 2012-05-22 16:34:21 -07:00
wimax skb: Add inline helper for getting the skb end offset from head 2012-05-06 13:13:19 -04:00
wireless ath9k_htc: configure bssid on ASSOC/IBSS change 2012-06-20 14:10:26 -04:00
xen-netback xen/netback: Calculate the number of SKB slots required correctly 2012-05-24 16:22:53 -04:00
dummy.c dummy: fix rcu_sched self-detected stalls 2012-06-11 01:12:04 -07:00
eql.c eql: dont rely on HZ=100 2012-03-27 22:45:26 -04:00
ifb.c
Kconfig tokenring: delete all remaining driver support 2012-05-15 20:23:16 -04:00
LICENSE.SRC
loopback.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
macvlan.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-05-16 22:17:37 -04:00
macvtap.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-05-16 22:17:37 -04:00
Makefile tokenring: delete all remaining driver support 2012-05-15 20:23:16 -04:00
mdio.c
mii.c
netconsole.c
rionet.c rionet: fix page allocation order of rionet_active 2012-04-01 23:17:16 -04:00
sb1000.c
Space.c drivers/net: delete all code/drivers depending on CONFIG_MCA 2012-05-17 16:37:41 -04:00
sungem_phy.c
tun.c drivers/net: Convert compare_ether_addr to ether_addr_equal 2012-05-10 23:33:01 -04:00
veth.c
virtio_net.c virtio-net: fix a race on 32bit arches 2012-06-10 20:23:20 -07:00
xen-netfront.c xen: do not disable netfront in dom0 2012-05-22 16:50:28 -04:00