gustavonihei commented on a change in pull request #4716:
URL: https://github.com/apache/incubator-nuttx/pull/4716#discussion_r736366580
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File path: arch/sim/Kconfig
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@@ -127,15 +127,26 @@ config SIM_WALLTIME_SIGNAL
endchoice
+choice
+ prompt "Simulated Network Interface"
+ default SIM_NETDEV if NET_ETHERNET
+
Review comment:
Something I wanted to prevent by suggesting the use of `optional` is
having this empty choice where the user has basically no action:
How about applying the following changes?
1) Add `depends on NET` to the root `choice`.
2) Add `optional` to the `choice`, so that even if there is Networking
support, the user may still not select it (no network interface simulation).
3) Transform `NET_ETHERNET` and `NET_USRSOCK` reverse dependencies of
`SIM_NETDEV` and `SIM_NETUSRSOCK`, respectively. This will prevent the `choice`
with zero options.
In the end, it would be like this:
```kconfig
choice SIM_NETINF
prompt "Simulated Network Interface"
default SIM_NETDEV
depends on NET
optional
config SIM_NETDEV
bool "Simulated Network Device"
select ARCH_HAVE_NETDEV_STATISTICS
select SCHED_LPWORK
select NET_ETHERNET
---help---
Built-in support for a simulated network device.
config SIM_NETUSRSOCK
bool "Simulated Network Device with Native Stack via usrsock"
select NET_USRSOCK
---help---
Built-in support for a simulated network device using native
stack via usrsock
endchoice
```
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