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2ebdb26e6a
linux/drivers/net/wan
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Zhengchao Shao 3faf7e14ec net: lapbether: fix issue of invalid opcode in lapbeth_open() 
If lapb_register() failed when lapb device goes to up for the first time,
the NAPI is not disabled. As a result, the invalid opcode issue is
reported when the lapb device goes to up for the second time.

The stack info is as follows:
[ 1958.311422][T11356] kernel BUG at net/core/dev.c:6442!
[ 1958.312206][T11356] invalid opcode: 0000 [#1] PREEMPT SMP KASAN
[ 1958.315979][T11356] RIP: 0010:napi_enable+0x16a/0x1f0
[ 1958.332310][T11356] Call Trace:
[ 1958.332817][T11356]  <TASK>
[ 1958.336135][T11356]  lapbeth_open+0x18/0x90
[ 1958.337446][T11356]  __dev_open+0x258/0x490
[ 1958.341672][T11356]  __dev_change_flags+0x4d4/0x6a0
[ 1958.345325][T11356]  dev_change_flags+0x93/0x160
[ 1958.346027][T11356]  devinet_ioctl+0x1276/0x1bf0
[ 1958.346738][T11356]  inet_ioctl+0x1c8/0x2d0
[ 1958.349638][T11356]  sock_ioctl+0x5d1/0x750
[ 1958.356059][T11356]  __x64_sys_ioctl+0x3ec/0x1790
[ 1958.365594][T11356]  do_syscall_64+0x35/0x80
[ 1958.366239][T11356]  entry_SYSCALL_64_after_hwframe+0x46/0xb0
[ 1958.377381][T11356]  </TASK>

Fixes: 514e1150da ("net: x25: Queue received packets in the drivers instead of per-CPU queues")
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Link: https://lore.kernel.org/r/20221107011445.207372-1-shaozhengchao@huawei.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-11-08 12:47:36 +01:00
..
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
c101.c net: split out ndo_siowandev ioctl 2021-07-27 20:11:45 +01:00
farsync.c net: split out ndo_siowandev ioctl 2021-07-27 20:11:45 +01:00
farsync.h WAN: Fix syntax errors in comments 2022-06-07 10:45:25 +02:00
fsl_ucc_hdlc.c net: wan: switch to netif_napi_add_weight() 2022-05-08 11:33:57 +01:00
fsl_ucc_hdlc.h
hd64570.c net: hd64570: add some required spaces 2021-06-07 12:25:21 -07:00
hd64570.h
hd64572.c net: wan: switch to netif_napi_add_weight() 2022-05-08 11:33:57 +01:00
hd64572.h
hdlc_cisco.c net: split out ndo_siowandev ioctl 2021-07-27 20:11:45 +01:00
hdlc_fr.c net: hldc_fr: use dev_addr_set() 2021-10-22 10:16:18 -07:00
hdlc_ppp.c net: split out ndo_siowandev ioctl 2021-07-27 20:11:45 +01:00
hdlc_raw_eth.c net: split out ndo_siowandev ioctl 2021-07-27 20:11:45 +01:00
hdlc_raw.c net: split out ndo_siowandev ioctl 2021-07-27 20:11:45 +01:00
hdlc_x25.c net: split out ndo_siowandev ioctl 2021-07-27 20:11:45 +01:00
hdlc.c net: split out ndo_siowandev ioctl 2021-07-27 20:11:45 +01:00
ixp4xx_hss.c net: wan: switch to netif_napi_add_weight() 2022-05-08 11:33:57 +01:00
Kconfig net: wan: remove support for Z85230-based devices 2022-04-27 12:22:56 +01:00
lapbether.c net: lapbether: fix issue of invalid opcode in lapbeth_open() 2022-11-08 12:47:36 +01:00
Makefile net: wan: remove support for Z85230-based devices 2022-04-27 12:22:56 +01:00
n2.c net: split out ndo_siowandev ioctl 2021-07-27 20:11:45 +01:00
pc300too.c net: split out ndo_siowandev ioctl 2021-07-27 20:11:45 +01:00
pci200syn.c net: split out ndo_siowandev ioctl 2021-07-27 20:11:45 +01:00
slic_ds26522.c spi: make remove callback a void function 2022-02-09 13:00:45 +00:00
slic_ds26522.h
wanxl.c net: split out ndo_siowandev ioctl 2021-07-27 20:11:45 +01:00
wanxl.h
wanxlfw.inc_shipped
wanxlfw.S