> On Feb 24, 2025, at 12:42 PM, Ian FREISLICH <ianfreisl...@gmail.com> wrote:
>
> Hi
>
> Building a kernel today failed with:
>
> -Werror /usr/src/sys/net/toeplitz.c
> In file included from /usr/src/sys/net/toeplitz.c:29:
> In file included from /usr/src/sys/net/rss_config.h:33:
> /usr/src/sys/netinet/in.h:692:23: error: call to undeclared function 'htonl';
> ISO C99 and later do not support implicit function declarations
> [-Werror,-Wimplicit-function-declaration]
> 692 | return (in.s_addr == htonl(INADDR_BROADCAST) ||
> | ^
> In file included from /usr/src/sys/net/toeplitz.c:32:
> In file included from /usr/src/sys/sys/systm.h:98:
> /usr/src/sys/sys/param.h:343:13: error: conflicting types for 'htonl'
> 343 | __uint32_t htonl(__uint32_t);
> | ^
> /usr/src/sys/netinet/in.h:692:23: note: previous implicit declaration is here
> 692 | return (in.s_addr == htonl(INADDR_BROADCAST) ||
>
> I think this is a result of changes to netinet/in.h (3b281d1421a78) which
> added a static inline function using ntohl() which is not defined in kernel
> use.
>
> Ian
>
May you please have a try with this patch ?
```
diff --git a/sys/netinet/in.h b/sys/netinet/in.h
index 0925e3aa7669..4dad4e4fed4d 100644
--- a/sys/netinet/in.h
+++ b/sys/netinet/in.h
@@ -689,8 +689,8 @@ void in_ifdetach(struct ifnet *);
static inline bool
in_broadcast(struct in_addr in)
{
- return (in.s_addr == htonl(INADDR_BROADCAST) ||
- in.s_addr == htonl(INADDR_ANY));
+ return (in.s_addr == INADDR_BROADCAST ||
+ in.s_addr == INADDR_ANY);
}
```
The `htonl` is pointless here, as INADDR_BROADCAST is all 1s, and INADDR_ANY is
all 0s.
Best regards,
Zhenlei
