On February 24, 2025 2:52:14 AM EST, Zhenlei Huang <z...@freebsd.org> wrote:
>
>
>> 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
>

That compiles.

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