[GitHub] [incubator-nuttx] xiaoxiang781216 commented on a diff in pull request #6725: include: Fixed null struct may caused build issue.

[GitBox]

xiaoxiang781216 commented on code in PR #6725:
URL: https://github.com/apache/incubator-nuttx/pull/6725#discussion_r931923559


##########
include/nuttx/net/netdev.h:
##########
@@ -272,6 +272,7 @@ struct net_driver_s
 
     struct netdev_varaddr_s radio;
 #endif
+    uint8_t unused;            /* fix compile issue if all above defines are 
valid */

Review Comment:
   let's guard the whole union by:
   ```
    #if defined(CONFIG_NET_ETHERNET) || defined(CONFIG_NET_6LOWPAN) || \
         defined(CONFIG_NET_BLUETOOTH) || defined(CONFIG_NET_IEEE802154)
   ```



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