zhhyu7 opened a new pull request, #18428:
URL: https://github.com/apache/nuttx/pull/18428
## Summary
Move network interface up operation (ifup) to work queue in RNDIS USB device
driver to avoid calling netdev_carrier_on API in interrupt context.
This PR addresses a threading context issue in the RNDIS USB device driver
where network interface initialization was being performed in interrupt context.
## Impact
Modified usbclass_setconfig() to schedule ifup operation via work_queue()
instead of calling it directly;
Reused existing pollwork work structure since the network card is not yet in
RUNNING state at this point.
## Testing
sim:usbdev
NuttX test log:
```
NuttShell (NSH)
nsh> ifconfig
eth0 Link encap:Ethernet HWaddr 42:73:ca:8b:35:04 at RUNNING mtu 1500
inet addr:10.0.1.2 DRaddr:10.0.1.1 Mask:255.255.255.0
inet6 addr: fe80::4073:caff:fe8b:3504/64
inet6 DRaddr: ::
nsh> conn 0[New Thread 0x7ffff3bff640 (LWP 926963)]
conn_main: Performing architecture-specific initialization
conn_main: Exiting
nsh> [New Thread 0x7ffff33fe640 (LWP 926964)]
[New Thread 0x7ffff2bfd640 (LWP 926965)]
nsh> ifconfig
eth0 Link encap:Ethernet HWaddr 42:73:ca:8b:35:04 at RUNNING mtu 1500
inet addr:10.0.1.2 DRaddr:10.0.1.1 Mask:255.255.255.0
inet6 addr: fe80::4073:caff:fe8b:3504/64
inet6 DRaddr: ::
eth1 Link encap:Ethernet HWaddr 00:00:00:00:00:00 at RUNNING mtu 1504
inet addr:0.0.0.0 DRaddr:0.0.0.0 Mask:0.0.0.0
inet6 addr: ::/0
inet6 DRaddr: ::
nsh> ifconfig eth1 100.0.0.2/24
nsh> ping 100.0.0.1
PING 100.0.0.1 56 bytes of data
56 bytes from 100.0.0.1: icmp_seq=0 time=10.0 ms
56 bytes from 100.0.0.1: icmp_seq=1 time=10.0 ms
56 bytes from 100.0.0.1: icmp_seq=2 time=10.0 ms
56 bytes from 100.0.0.1: icmp_seq=3 time=10.0 ms
56 bytes from 100.0.0.1: icmp_seq=4 time=10.0 ms
56 bytes from 100.0.0.1: icmp_seq=5 time=10.0 ms
56 bytes from 100.0.0.1: icmp_seq=6 time=10.0 ms
56 bytes from 100.0.0.1: icmp_seq=7 time=10.0 ms
56 bytes from 100.0.0.1: icmp_seq=8 time=10.0 ms
56 bytes from 100.0.0.1: icmp_seq=9 time=10.0 ms
10 packets transmitted, 10 received, 0% packet loss, time 10100 ms
rtt min/avg/max/mdev = 10.000/10.000/10.000/0.000 ms
nsh>
```
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